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      <image:title>Root&apos;s Square Piston Engine Mechanism: How It Works, Parts, Uses &amp; Indicated Power Explained</image:title>
      <image:caption>Root&apos;s Square Piston Engine diagram</image:caption>
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      <image:title>Rotary Engine (form 3) Mechanism Explained: How It Works, Parts, Uses &amp; Interactive Calculator</image:title>
      <image:caption>Rotary Engine (form 3) diagram</image:caption>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/rotary-multicylinder-engine</loc>
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      <image:title>Rotary Multicylinder Engine: How It Works, Parts, Phasing, Formula and Uses Explained</image:title>
      <image:caption>Rotary Multicylinder Engine diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/spring-balanced-centrifugal-governor</loc>
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      <image:title>Spring Balanced Centrifugal Governor: How It Works, Parts, Formula &amp; Uses Explained</image:title>
      <image:caption>Spring Balanced Centrifugal Governor diagram</image:caption>
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      <image:title>Steam Pump Mechanism: How Direct-Acting Duplex Pumps Work, Parts, Formula &amp; Uses</image:title>
      <image:caption>Steam Pump diagram</image:caption>
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      <image:title>Steeple Engine Mechanism Explained: How Twin-Rod Marine Steam Engines Work</image:title>
      <image:caption>Steeple Engine diagram</image:caption>
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      <image:title>Stephenson Valve Gear Explained: How It Works, Parts, Cutoff Formula and Uses in Steam Locomotives</image:title>
      <image:caption>Stephenson Valve Gear diagram</image:caption>
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  <url>
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      <image:title>Stevens Boiler Mechanism: How John Stevens&apos; 1804 Porcupine Water-Tube Marine Boiler Works</image:title>
      <image:caption>Stevens Boiler diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/tappet-lever-valve-motion</loc>
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      <image:title>Tappet Lever Valve Motion: Assumed Opening-flank Calculator</image:title>
      <image:caption>Tappet Lever Valve Motion diagram</image:caption>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/toe-and-lifter-for-puppet-valves</loc>
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      <image:title>Toe and Lifter for Puppet Valves: Ideal Area Comparison</image:title>
      <image:caption>Toe and Lifter for Puppet Valves diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/adjustable-floor-stand</loc>
    <lastmod>2026-10-04T23:08:35-07:00</lastmod>
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      <image:title>Adjustable Floor Stand Mechanism Explained: Telescoping Pillar Parts, Buckling Formula, and Diagram</image:title>
      <image:caption>Adjustable Floor Stand diagram</image:caption>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/cloth-dresser</loc>
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      <image:title>Cloth Dresser: Teasel-Drum Motion and Nominal Cloth Throughput Explained</image:title>
      <image:caption>Cloth Dresser diagram</image:caption>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/friction-clutch-bevel-gear</loc>
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      <image:title>Friction Clutch in a Bevel Drive: Torque Comparison | FIRGELLI</image:title>
      <image:caption>Friction Clutch Bevel Gear diagram</image:caption>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/gordon-printing-press</loc>
    <lastmod>2026-10-05T04:22:31-07:00</lastmod>
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      <image:title>Gordon Printing Press: Motion and Cycle-Rate Calculator | FIRGELLI</image:title>
      <image:caption>Gordon Printing Press diagram</image:caption>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/i-bar-travelling-tramway</loc>
    <lastmod>2026-10-05T08:12:36-07:00</lastmod>
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      <image:title>I-Bar Tramway: Ideal Incline-Force Calculator | FIRGELLI</image:title>
      <image:caption>I-bar Travelling Tramway diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/jointed-radial-arm</loc>
    <lastmod>2026-10-05T09:29:15-07:00</lastmod>
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      <image:title>Jointed Radial Arm: Two-Link Reach and Workspace Calculator | FIRGELLI</image:title>
      <image:caption>Jointed Radial Arm diagram</image:caption>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/right-angle-shaft-transmission</loc>
    <lastmod>2026-10-05T09:53:42-07:00</lastmod>
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      <image:title>Right Angle Shaft Transmission Mechanism: How It Works, Bevel Gear Parts, Uses &amp; Calculator</image:title>
      <image:caption>Right Angle Shaft Transmission diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/press-via-toothed-sector-and-pinion</loc>
    <lastmod>2026-10-04T13:11:53-07:00</lastmod>
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      <image:title>Toothed-Sector Press: Ideal Gear Transmission Ledger</image:title>
      <image:caption>Press via Toothed Sector and Pinion diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/shaft-step-adjustment</loc>
    <lastmod>2026-10-04T17:47:46-07:00</lastmod>
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      <image:title>Shaft Step Adjustment Mechanism Explained: How Stepped Cone Pulleys Change Shaft Speed</image:title>
      <image:caption>Shaft Step Adjustment diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/spring-friction-clutch</loc>
    <lastmod>2026-10-04T17:48:42-07:00</lastmod>
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      <image:title>Spring Friction Clutch Mechanism: How It Works, Parts, Formula and Factory Uses Explained</image:title>
      <image:caption>Spring Friction Clutch diagram</image:caption>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/taper-tube-rolls</loc>
    <lastmod>2026-10-05T07:49:44-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/taper-tube-rolls.png?v=1777395568</image:loc>
      <image:title>Taper Tube Rolls: Entered Tube-geometry Calculator</image:title>
      <image:caption>Taper Tube Rolls diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/wire-bending-machine</loc>
    <lastmod>2026-10-05T07:56:15-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/wire-bending-machine.png?v=1777395575</image:loc>
      <image:title>Wire-Bending Machine: Angle Animation and Illustrative Overbend Calculator</image:title>
      <image:caption>Wire-bending Machine diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bellows-coupling</loc>
    <lastmod>2026-10-02T08:20:44-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bellows-coupling.png?v=1777395578</image:loc>
      <image:title>Bellows Coupling Mechanism Explained: How It Works, Diagram, Parts, Formula and CNC Servo Uses</image:title>
      <image:caption>Bellows Coupling diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/hand-pump</loc>
    <lastmod>2026-10-06T00:47:07-07:00</lastmod>
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      <image:title>Hand Pump: Displacement, Flow and Force Calculator | FIRGELLI</image:title>
      <image:caption>Hand Pump diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/hotchkiss-magazine-gun</loc>
    <lastmod>2026-10-06T10:23:41-07:00</lastmod>
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      <image:title>Hotchkiss Magazine Gun: Historical and Museum References | FIRGELLI</image:title>
      <image:caption>Case 22, Springfield Armory National Historic Site: historical magazine rifles</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/human-treadmill</loc>
    <lastmod>2026-09-05T12:30:56-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/human-treadmill.png?v=1777395591</image:loc>
      <image:title>Human Treadmill Mechanism Explained: Belt, Deck, Drive Roller, Incline Actuator and Motor Power</image:title>
      <image:caption>Human Treadmill diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/mercury-switch</loc>
    <lastmod>2026-10-05T00:35:30-07:00</lastmod>
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      <image:title>Mercury Tilt Switch: Make and Break Angle Calculator</image:title>
      <image:caption>Mercury Switch diagram</image:caption>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/conical-bevel-pinion-with-spiral-studs</loc>
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      <image:title>Spiral-Stud Conical Wheel: Variable-Speed Motion, Diagram and Calculator</image:title>
      <image:caption>Conical Bevel Pinion with Spiral Studs diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/external-internal-mutilated-gear-reverse</loc>
    <lastmod>2026-10-06T17:18:06-07:00</lastmod>
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      <image:title>External/Internal Sector Gears: Reversing-Motion Calculator | FIRGELLI</image:title>
      <image:caption>External/internal Mutilated Gear Reverse diagram</image:caption>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/geared-grip-tongs</loc>
    <lastmod>2026-10-05T23:09:22-07:00</lastmod>
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      <image:title>Geared Grip Tongs: Compound-Pinion Animation and Jaw-Travel Calculator</image:title>
      <image:caption>Geared Grip Tongs — schematic of the mechanism.</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/internal-spur-gear-and-pinion</loc>
    <lastmod>2026-10-05T08:55:53-07:00</lastmod>
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      <image:title>Internal Spur Gear and Pinion: Pitch Geometry Calculator | FIRGELLI</image:title>
      <image:caption>Internal Spur Gear and Pinion diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/sun-and-planet-gear</loc>
    <lastmod>2026-10-05T07:49:05-07:00</lastmod>
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      <image:title>Sun and Planet Gear Mechanism Explained: How Watt&apos;s Epicyclic Drive Works, Parts, Diagram, Uses</image:title>
      <image:caption>Sun and Planet Gear diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/variable-circular-motion</loc>
    <lastmod>2026-10-05T07:53:32-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/variable-circular-motion.png?v=1777395624</image:loc>
      <image:title>Variable Circular Motion: Instantaneous Pitch-radius Ratio</image:title>
      <image:caption>Variable Circular Motion diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/variable-reciprocating-motion</loc>
    <lastmod>2026-10-05T07:53:50-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/variable-reciprocating-motion.png?v=1777395627</image:loc>
      <image:title>Variable Reciprocating Motion: Ideal Angle Comparison</image:title>
      <image:caption>Variable Reciprocating Motion diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/drainage-wheel</loc>
    <lastmod>2026-10-04T22:19:53-07:00</lastmod>
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      <image:title>Drainage Wheel Mechanism: How Scoop Wheels Lift Water with Diagram, Animation, Parts and Calculator</image:title>
      <image:caption>Drainage Wheel diagram</image:caption>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/fairburn-bailing-scoop</loc>
    <lastmod>2026-10-04T23:39:41-07:00</lastmod>
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      <image:title>Fairburn Bailing Scoop: Volume and Flow Calculator | FIRGELLI</image:title>
      <image:caption>Fairburn Bailing Scoop diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/flexible-ball-joint</loc>
    <lastmod>2026-10-05T16:38:22-07:00</lastmod>
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      <image:title>Flexible Pipe Ball Joint: Angle-Sum Comparison | FIRGELLI</image:title>
      <image:caption>Flexible Ball Joint diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lift-pump-form-1</loc>
    <lastmod>2026-10-04T23:41:18-07:00</lastmod>
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      <image:title>Lift Pump (form 1) Mechanism Explained: How It Works, Diagram, Parts, Uses, and Flow Calculator</image:title>
      <image:caption>Lift Pump (form 1) diagram</image:caption>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bartrum-and-powell-rotary-engine</loc>
    <lastmod>2026-10-04T19:52:24-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bartrum-and-powell-rotary-engine.png?v=1777395408</image:loc>
      <image:title>Bartrum and Powell Rotary Engine Mechanism: How It Works, Diagram, Parts and Uses Explained</image:title>
      <image:caption>Bartrum and Powell Rotary Engine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/feed-worm-and-air-blast</loc>
    <lastmod>2026-10-05T16:30:59-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/feed-worm-and-air-blast.png?v=1777395428</image:loc>
      <image:title>Feed Worm and Air Blast: Fuel and Air Flow Calculator | FIRGELLI</image:title>
      <image:caption>Feed Worm and Air Blast diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/jones-mechanical-stoker</loc>
    <lastmod>2026-10-05T09:30:53-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/jones-mechanical-stoker.png?v=1777395434</image:loc>
      <image:title>Jones Mechanical Stoker: Calibrated Screw-Feed Calculator | FIRGELLI</image:title>
      <image:caption>Jones Mechanical Stoker diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/american-boiler-stoker</loc>
    <lastmod>2026-10-05T00:09:28-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/american-boiler-stoker.png?v=1777395404</image:loc>
      <image:title>American Boiler Stoker Mechanism: How Underfeed Coal Firing Works, Parts, and Diagram</image:title>
      <image:caption>American Boiler Stoker diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/columbia-stoker</loc>
    <lastmod>2026-10-04T21:27:12-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/columbia-stoker.png?v=1777395414</image:loc>
      <image:title>Columbia Stoker: Pusher Feed Animation and Area Calculator</image:title>
      <image:caption>Columbia Stoker diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/dake-square-piston-engine</loc>
    <lastmod>2026-10-04T21:04:50-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/dake-square-piston-engine.png?v=1777395421</image:loc>
      <image:title>Dake Square Piston Engine: How It Works, Diagram, Parts, and Uses in Steam Hoists and Pumps</image:title>
      <image:caption>Dake Square Piston Engine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/mechanical-stoker</loc>
    <lastmod>2026-10-05T00:29:43-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/mechanical-stoker.png?v=1777395447</image:loc>
      <image:title>Underfeed Mechanical Stoker: Ram Feed Calculator</image:title>
      <image:caption>Mechanical Stoker diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/rotary-engine-form-1</loc>
    <lastmod>2026-10-04T17:42:41-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/rotary-engine-form-1.png?v=1777395467</image:loc>
      <image:title>Rotary Engine (form 1) Mechanism: How a Single-Vane Steam Rotary Works, Parts and Uses Explained</image:title>
      <image:caption>Rotary Engine (form 1) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/rotary-engine-form-2</loc>
    <lastmod>2026-10-04T17:42:43-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/rotary-engine-form-2.png?v=1777395470</image:loc>
      <image:title>Rotary Engine (form 2) Explained: How the Eccentric Vane Steam Mechanism Works, Parts and Uses</image:title>
      <image:caption>Rotary Engine (form 2) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/rotary-engine-form-5</loc>
    <lastmod>2026-10-04T17:42:46-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/rotary-engine-form-5.png?v=1777395477</image:loc>
      <image:title>Rotary Engine (form 5) Mechanism: How It Works, Parts, Formula, and Heritage Steam Uses Explained</image:title>
      <image:caption>Rotary Engine (form 5) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/ruth-s-rotary-engine</loc>
    <lastmod>2026-10-06T16:07:58-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/ruth-s-rotary-engine.png?v=1777395484</image:loc>
      <image:title>Ruth&apos;s Rotary Engine: Rotating Cylinders and Eccentric Guide Ring</image:title>
      <image:caption>Ruth&apos;s Rotary Engine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/sellers-restarting-injector</loc>
    <lastmod>2026-10-07T09:44:32-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/sellers-restarting-injector.png?v=1777395487</image:loc>
      <image:title>Sellers&apos; Restarting Injector: How It Works, Parts, and Locomotive Feedwater Uses Explained</image:title>
      <image:caption>Sellers&apos; Restarting Injector diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/smith-rotary-engine</loc>
    <lastmod>2026-10-06T16:38:49-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/smith-rotary-engine.png?v=1777395490</image:loc>
      <image:title>Smith Rotary Engine: Four-Arm Mechanism, Animation and Indicated Power</image:title>
      <image:caption>Smith Rotary Engine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/tandem-compound-vertical-engine</loc>
    <lastmod>2026-10-05T07:49:41-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/tandem-compound-vertical-engine.png?v=1777395510</image:loc>
      <image:title>Tandem Compound Vertical Engine: Indicated-power Calculator</image:title>
      <image:caption>Tandem Compound Vertical Engine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/vertical-water-tube-boiler</loc>
    <lastmod>2026-10-05T07:54:27-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/vertical-water-tube-boiler.png?v=1777395520</image:loc>
      <image:title>Vertical Water Tube Boiler: Flow Animation and Assumption Calculator</image:title>
      <image:caption>Vertical Water Tube Boiler diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/boiler-tube-expander</loc>
    <lastmod>2026-10-04T20:36:40-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/boiler-tube-expander.png?v=1777395527</image:loc>
      <image:title>Boiler Tube Expander Mechanism Explained: How It Works, Parts, Diagram &amp; Wall Reduction Formula</image:title>
      <image:caption>Boiler Tube Expander diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/compound-lever-shears</loc>
    <lastmod>2026-10-04T19:42:01-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/compound-lever-shears.png?v=1777395533</image:loc>
      <image:title>Compound Lever Shears Mechanism Explained: How It Works, Parts, Formula, and Uses</image:title>
      <image:caption>Compound Lever Shears diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/expansion-bit</loc>
    <lastmod>2026-10-04T23:32:06-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/expansion-bit.png?v=1777395536</image:loc>
      <image:title>Expansion Bit: Cutter Diameter and Screw-Feed Calculator | FIRGELLI</image:title>
      <image:caption>Expansion Bit diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/roller-tube-expander</loc>
    <lastmod>2026-10-04T17:42:18-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/roller-tube-expander.png?v=1777395555</image:loc>
      <image:title>Roller Tube Expander Mechanism: How It Works, Parts, Wall Reduction Formula and Uses</image:title>
      <image:caption>Roller Tube Expander diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/vibrating-lift</loc>
    <lastmod>2026-10-05T07:54:29-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/vibrating-lift.png?v=1777395572</image:loc>
      <image:title>Vibrating Lift: Spiral Elevator Animation and Reference Calculator</image:title>
      <image:caption>Vibrating Lift diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cable-robot</loc>
    <lastmod>2026-10-04T22:13:36-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cable-robot.png?v=1777395581</image:loc>
      <image:title>Cable Robot Mechanism Explained: How Cable-Driven Parallel Robots (CDPRs) Work, Parts and Uses</image:title>
      <image:caption>Cable Robot diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/ferguson-s-mechanical-paradox</loc>
    <lastmod>2026-10-03T13:57:58-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/ferguson-s-mechanical-paradox.png?v=1777395597</image:loc>
      <image:title>Ferguson&apos;s Mechanical Paradox Mechanism Explained: How It Works, Gear Diagram, Parts and Uses</image:title>
      <image:caption>Ferguson&apos;s Mechanical Paradox diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/change-gear-motion</loc>
    <lastmod>2026-10-04T20:53:50-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/change-gear-motion.png?v=1777395600</image:loc>
      <image:title>Change Gear Motion Mechanism: How It Works, Diagram, Parts, Formula and Uses Explained</image:title>
      <image:caption>Change Gear Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/quick-back-motion</loc>
    <lastmod>2026-10-04T16:02:23-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/quick-back-motion.png?v=1777502190</image:loc>
      <image:title>Quick-Return Motion: Declared Crank-Arc Timing Ledger</image:title>
      <image:caption>Quick Back Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/ancient-water-lift</loc>
    <lastmod>2026-10-05T00:22:12-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/ancient-water-lift.png?v=1777502193</image:loc>
      <image:title>Ancient Water Lift Mechanism Explained: How It Works, Parts, Diagram, and Discharge Formula</image:title>
      <image:caption>Ancient Water Lift diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/persian-wheel</loc>
    <lastmod>2026-10-04T07:11:23-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/persian-wheel.png?v=1777502197</image:loc>
      <image:title>Persian Wheel: Gear Ratio and Bucket Timing</image:title>
      <image:caption>Persian Wheel diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/reversing-movement</loc>
    <lastmod>2026-10-05T06:39:30-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/reversing-movement.png?v=1777502200</image:loc>
      <image:title>Hydraulic Reversing Movement: Cylinder Speed and Force Calculator</image:title>
      <image:caption>Reversing Movement diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/saw-mill-water-wheel</loc>
    <lastmod>2026-10-06T22:07:16-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/saw-mill-water-wheel.png?v=1777502203</image:loc>
      <image:title>Saw-mill Water Wheel Mechanism Explained: How It Works, Parts, Formula and Uses</image:title>
      <image:caption>Saw-mill Water Wheel diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/yoke-connection</loc>
    <lastmod>2026-10-05T07:56:50-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/yoke-connection.png?v=1777502207</image:loc>
      <image:title>Yoke Connection Mechanism: How Hydraulic Cylinder Clevis Pin Joints Work, Parts, and Uses Explained</image:title>
      <image:caption>Yoke Connection diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/slotted-lever-quick-return</loc>
    <lastmod>2026-10-07T17:00:44-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/slotted-lever-quick-return.png?v=1777502210</image:loc>
      <image:title>Slotted-lever Quick-return Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses</image:title>
      <image:caption>Slotted-lever Quick-return diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/belt-shifter-reversing</loc>
    <lastmod>2026-10-04T20:16:59-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/belt-shifter-reversing.png?v=1777502213</image:loc>
      <image:title>Belt-shifter Reversing Mechanism Explained: How It Works, Diagram, Parts, and Uses</image:title>
      <image:caption>Belt-shifter Reversing diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cam-lever-grip</loc>
    <lastmod>2026-10-04T22:15:34-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cam-lever-grip.png?v=1777502216</image:loc>
      <image:title>Cam-lever Grip Mechanism Explained: How It Works, Parts, Diagram, Formula, and Uses</image:title>
      <image:caption>Cam-lever Grip diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/combination-crank-motion-curves</loc>
    <lastmod>2026-10-04T20:57:54-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/combination-crank-motion-curves.png?v=1777502219</image:loc>
      <image:title>Combination Crank-motion Curves: Crank-Rocker Linkage and Interactive Pen Trace</image:title>
      <image:caption>Combination Crank-motion Curves diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/compression-helical-spring</loc>
    <lastmod>2026-10-04T20:04:39-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/compression-helical-spring.png?v=1777502226</image:loc>
      <image:title>Compression Helical Spring Mechanism: How It Works, Diagram, Formula, Parts and Uses Explained</image:title>
      <image:caption>Compression Helical Spring diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/continuous-to-alternating-crank-gears</loc>
    <lastmod>2026-10-04T20:14:55-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/continuous-to-alternating-crank-gears.png?v=1777502229</image:loc>
      <image:title>Continuous to Alternating Crank Gears: How the Mutilated Sector Gear Mechanism Works</image:title>
      <image:caption>Continuous to Alternating Crank Gears diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/continuous-to-vibrating-via-irregular-pinion</loc>
    <lastmod>2026-10-04T20:14:58-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
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      <image:title>Continuous to Vibrating via Irregular Pinion: How It Works, Parts, Formula, and Industrial Uses</image:title>
      <image:caption>Continuous to Vibrating via Irregular Pinion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/gear-disengaging-cam-lever</loc>
    <lastmod>2026-10-05T03:43:56-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
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      <image:title>Gear-Disengaging Cam Lever: Motion and Ideal Hand Force | FIRGELLI</image:title>
      <image:caption>Gear-disengaging Cam Lever diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/irregular-reciprocating-motion</loc>
    <lastmod>2026-10-05T09:18:58-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/irregular-reciprocating-motion.png?v=1777502238</image:loc>
      <image:title>Irregular Reciprocating Motion: Mass and Acceleration Calculator | FIRGELLI</image:title>
      <image:caption>Irregular Reciprocating Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/irregular-rocking-motion</loc>
    <lastmod>2026-10-06T18:42:35-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/irregular-rocking-motion.png?v=1777502241</image:loc>
      <image:title>Irregular Rocking Motion: Work and Return Allocation Calculator | FIRGELLI</image:title>
      <image:caption>Irregular Rocking Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/oscillating-column-form-1</loc>
    <lastmod>2026-10-05T09:36:34-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/oscillating-column-form-1.png?v=1777502245</image:loc>
      <image:title>D&apos;Ectol&apos;s Oscillating Column: Fixed-Part Hydraulic Cycle</image:title>
      <image:caption>Oscillating Column (form 1) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/oscillating-column-form-2</loc>
    <lastmod>2026-10-05T09:36:38-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/oscillating-column-form-2.png?v=1777502248</image:loc>
      <image:title>D&apos;Ectol&apos;s Oscillating Column Form 2: Cone-Check State</image:title>
      <image:caption>Oscillating Column (form 2) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/pawl-lift</loc>
    <lastmod>2026-10-05T10:10:29-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/pawl-lift.png?v=1777502251</image:loc>
      <image:title>Pawl Lift: Two-Pawl Rack Indexing Sequence</image:title>
      <image:caption>Pawl Lift diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/quick-reciprocating-rectilinear-motion</loc>
    <lastmod>2026-10-04T16:10:14-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/quick-reciprocating-rectilinear-motion.png?v=1777502254</image:loc>
      <image:title>Quick Reciprocating Motion: Declared Two-Arc Ledger</image:title>
      <image:caption>Quick Reciprocating Rectilinear Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/reversible-pulley</loc>
    <lastmod>2026-10-05T05:41:38-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/reversible-pulley.png?v=1777502258</image:loc>
      <image:title>Reversible Pulley Mechanism Explained: How It Works, Diagram, Parts, Formula, and Uses</image:title>
      <image:caption>Reversible Pulley diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/slotted-lever-motion</loc>
    <lastmod>2026-10-07T16:58:33-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/slotted-lever-motion.png?v=1777502261</image:loc>
      <image:title>Slotted Lever Motion Mechanism Explained: How It Works, Quick Return Geometry, Parts and Uses</image:title>
      <image:caption>Slotted Lever Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/variable-rectilinear-motion</loc>
    <lastmod>2026-10-05T07:53:51-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/variable-rectilinear-motion.png?v=1777502264</image:loc>
      <image:title>Slotted-lever Quick Return: Ideal Timing-ratio Calculator</image:title>
      <image:caption>Variable Rectilinear Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/fleming-loop</loc>
    <lastmod>2026-10-04T19:31:23-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/fleming-loop.png?v=1777502271</image:loc>
      <image:title>Fleming Loop Mechanism Explained: How Curved Road Alignments Bypass Obstacles</image:title>
      <image:caption>Fleming Loop diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/ice-bicycle</loc>
    <lastmod>2026-10-05T08:17:31-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/ice-bicycle.png?v=1777502277</image:loc>
      <image:title>Ice Bicycle: Historical Attachment and Coefficient Comparison | FIRGELLI</image:title>
      <image:caption>Ice Bicycle diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/pirogue</loc>
    <lastmod>2026-10-04T08:18:42-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/pirogue.png?v=1777502287</image:loc>
      <image:title>Pirogue: Displacement and Rectangular-Prism Comparison</image:title>
      <image:caption>Pirogue diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/pivoted-steps</loc>
    <lastmod>2026-10-04T08:49:06-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/pivoted-steps.png?v=1777502290</image:loc>
      <image:title>Pivoted Step: Declared Point-Load Moment Geometry</image:title>
      <image:caption>Pivoted Steps diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/schooner-rig</loc>
    <lastmod>2026-10-04T17:46:53-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/schooner-rig.png?v=1777502293</image:loc>
      <image:title>Schooner Rig Explained: How a Two-Masted Fore-and-Aft Sail Plan Works, Parts and Drive Force</image:title>
      <image:caption>Schooner Rig diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/screw-anchor</loc>
    <lastmod>2026-10-04T17:46:59-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/screw-anchor.png?v=1777502297</image:loc>
      <image:title>Screw Anchor Mechanism Explained: How Helical Ground Anchors Work, Parts, Uses &amp; Torque Formula</image:title>
      <image:caption>Screw Anchor diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/ship-s-steering-gear</loc>
    <lastmod>2026-10-02T08:26:14-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/ship-s-steering-gear.png?v=1777502300</image:loc>
      <image:title>Ship&apos;s Steering Gear Mechanism: How Rapson Slide Hydraulic Rudder Actuators Work</image:title>
      <image:caption>Ship&apos;s Steering Gear diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/single-eccentric-reversing-gear</loc>
    <lastmod>2026-10-04T18:32:19-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/single-eccentric-reversing-gear.png?v=1777502303</image:loc>
      <image:title>Single Eccentric Reversing Gear: How It Works, Diagram, Parts, Formula and Uses Explained</image:title>
      <image:caption>Single Eccentric Reversing Gear diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/steam-fire-engine</loc>
    <lastmod>2026-10-04T17:49:18-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/steam-fire-engine.png?v=1777502306</image:loc>
      <image:title>Steam Fire Engine Mechanism: How a Steam-Powered Pump Works, Parts, Diagram and Calculator</image:title>
      <image:caption>Steam Fire Engine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/stevedore-knot</loc>
    <lastmod>2026-10-04T18:36:03-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/stevedore-knot.png?v=1777502309</image:loc>
      <image:title>Stevedore Knot Mechanism Explained: How It Works, Parts, Uses, and Sheave Jam Calculator</image:title>
      <image:caption>Stevedore Knot diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/equalizing-lever</loc>
    <lastmod>2026-10-04T23:22:03-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/equalizing-lever.png?v=1777502316</image:loc>
      <image:title>Equalizing Lever: Load Sharing, Rocker Animation and Calculator</image:title>
      <image:caption>Equalizing Lever diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/burmester-theory-linkage</loc>
    <lastmod>2026-10-04T22:08:49-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/burmester-theory-linkage.png?v=1777502319</image:loc>
      <image:title>Burmester Theory: Four-bar Body Guidance and Pivot-Offset Calculator</image:title>
      <image:caption>Burmester Theory Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/geared-continuous-hinge</loc>
    <lastmod>2026-10-05T22:47:57-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/geared-continuous-hinge.png?v=1777502323</image:loc>
      <image:title>Geared Continuous Hinge: Door-Weight Moment Calculator | FIRGELLI</image:title>
      <image:caption>Geared Continuous Hinge diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/whitworth-quick-return-mechanism</loc>
    <lastmod>2026-10-05T07:55:54-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/whitworth-quick-return-mechanism.png?v=1777502326</image:loc>
      <image:title>Whitworth Quick Return: Ideal Crank-angle Timing Calculator</image:title>
      <image:caption>Whitworth Quick Return Mechanism diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/synchromesh</loc>
    <lastmod>2026-10-05T07:49:37-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/synchromesh.png?v=1777502329</image:loc>
      <image:title>Synchromesh: Ideal Single-cone Synchronization Calculator</image:title>
      <image:caption>Synchromesh diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/curved-cone-pulleys</loc>
    <lastmod>2026-10-04T20:47:54-07:00</lastmod>
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      <image:title>Curved Cone Pulleys Mechanism: How It Works, Parts, Formula, and Uses Explained</image:title>
      <image:caption>Curved Cone Pulleys diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/jumping-motion</loc>
    <lastmod>2026-10-05T09:43:03-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/jumping-motion.png?v=1777502336</image:loc>
      <image:title>Jumping Motion: Spring-and-Latch Average Power Calculator | FIRGELLI</image:title>
      <image:caption>Jumping Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/shifting-device-for-cone-pulleys</loc>
    <lastmod>2026-10-04T18:30:02-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/shifting-device-for-cone-pulleys.png?v=1777502339</image:loc>
      <image:title>Shifting Device for Cone Pulleys: How It Works, Parts, Diagram, and Speed Ratio Calculator</image:title>
      <image:caption>Shifting Device for Cone Pulleys diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/toothed-link-chain-and-pulley</loc>
    <lastmod>2026-10-05T07:51:11-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/toothed-link-chain-and-pulley.png?v=1777502343</image:loc>
      <image:title>Toothed Link Chain and Pulley: Ideal Speed and Pitch Geometry</image:title>
      <image:caption>Toothed Link Chain and Pulley diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/variable-speed-or-cone-gearing</loc>
    <lastmod>2026-10-05T07:54:01-07:00</lastmod>
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      <image:title>Cone-drive Ratio: One-point Pitch-diameter Comparison</image:title>
      <image:caption>Variable Speed or Cone Gearing diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/double-three-legged-gravity-escapement</loc>
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      <image:title>Double Three-legged Gravity Escapement: How Denison&apos;s Turret Clock Mechanism Works</image:title>
      <image:caption>Double Three-legged Gravity Escapement diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/pin-geared-watch-stop</loc>
    <lastmod>2026-10-04T07:45:03-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/pin-geared-watch-stop.png?v=1777502352</image:loc>
      <image:title>Pin-Geared Watch Stop: Declared Stop-Work Indexing</image:title>
      <image:caption>Pin-geared Watch Stop diagram</image:caption>
    </image:image>
  </url>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/centrifugal-speed-indicator</loc>
    <lastmod>2026-10-04T21:15:44-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/centrifugal-speed-indicator.png?v=1777502355</image:loc>
      <image:title>Centrifugal Speed Indicator Mechanism: How It Works, Parts, Diagram, Formula and Uses Explained</image:title>
      <image:caption>Centrifugal Speed Indicator diagram</image:caption>
    </image:image>
  </url>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/great-curve-delineator</loc>
    <lastmod>2026-10-05T04:31:12-07:00</lastmod>
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      <image:title>Great-Curve Delineator: Arc Radius and Rise Calculator | FIRGELLI</image:title>
      <image:caption>Great Curve Delineator diagram</image:caption>
    </image:image>
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    <lastmod>2026-10-05T09:28:22-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/omni-telemeter-odontograph.png?v=1791217702</image:loc>
      <image:title>Omni-Telemeter and Odontograph: Two Hiscox Devices</image:title>
      <image:caption>Omni-telemeter and odontograph illustration</image:caption>
    </image:image>
  </url>
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    <lastmod>2026-10-04T14:13:48-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/prony-brake.png?v=1777502365</image:loc>
      <image:title>Prony Brake: Declared Torque-and-Power Ledger</image:title>
      <image:caption>Prony Brake diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/prony-brake-rule</loc>
    <lastmod>2026-10-04T14:18:00-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/prony-brake-rule.png?v=1777502369</image:loc>
      <image:title>Prony-Brake Rule: Perpendicular Force-Arm Ledger</image:title>
      <image:caption>Prony Brake Rule diagram</image:caption>
    </image:image>
  </url>
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    <lastmod>2026-10-04T14:31:20-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/proportional-compasses.png?v=1777502375</image:loc>
      <image:title>Proportional Compasses: Exact Pivot Setting and Scale Transfer</image:title>
      <image:caption>Proportional Compasses diagram</image:caption>
    </image:image>
  </url>
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    <lastmod>2026-10-05T01:26:53-07:00</lastmod>
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      <image:title>Recording Pressure Gauge Mechanism Explained: Bourdon Tube Linkage, Chart Drive, and Diagram</image:title>
      <image:caption>Recording Pressure Gauge diagram</image:caption>
    </image:image>
  </url>
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    <lastmod>2026-10-05T03:17:42-07:00</lastmod>
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      <image:title>Reflecting Drawing Board Mechanism: How It Works, Optical Diagram, Parts and Uses Explained</image:title>
      <image:caption>Reflecting Drawing Board diagram</image:caption>
    </image:image>
  </url>
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      <image:title>Roller Parallel Ruler Mechanism Explained: How It Works, Parts, Diagram and Marine Navigation Uses</image:title>
      <image:caption>Roller Parallel Ruler diagram</image:caption>
    </image:image>
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      <image:caption>Section Liner diagram</image:caption>
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      <image:caption>Self-recording Level diagram</image:caption>
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      <image:caption>Self-registering Barometer diagram</image:caption>
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      <image:caption>Slotted Parallel Ruler diagram</image:caption>
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      <image:caption>Speed Indicator diagram</image:caption>
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      <image:caption>Spherometer diagram</image:caption>
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      <image:caption>Spirograph diagram</image:caption>
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      <image:caption>Spring Cyclograph diagram</image:caption>
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      <image:caption>Tatham&apos;s Dynamometer diagram</image:caption>
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      <image:caption>Tensile Testing Machine diagram</image:caption>
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      <image:caption>Three Horse Whiffletrees diagram</image:caption>
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      <image:caption>Tire Measure Counter diagram</image:caption>
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      <image:title>Torsion Dynamometer: Relative Twist and Ideal Shaft Calculations</image:title>
      <image:caption>Torsion Dynamometer diagram</image:caption>
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      <image:caption>Ancient Windmill diagram</image:caption>
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      <image:caption>Compressed Air Power diagram</image:caption>
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      <image:caption>Compressed Air Sheepshearing Machine diagram</image:caption>
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      <image:caption>Compressed Air Water Elevator diagram</image:caption>
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      <image:caption>Crank Equalizing Angle diagram</image:caption>
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      <image:caption>Curved Vane Windmill or Motor diagram</image:caption>
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      <image:caption>Double Cone Ventilator diagram</image:caption>
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      <image:caption>Double Organ-blowing Bellows diagram</image:caption>
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      <image:caption>Duplex Air Compressor diagram</image:caption>
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      <image:title>Duplex Pneumatic Riveter: Nested Hammer and Cylinder Mechanism</image:title>
      <image:caption>Duplex Pneumatic Riveter diagram</image:caption>
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      <image:caption>Duplex Steam-actuated Air Compressor diagram</image:caption>
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      <image:caption>Electric Windmill Plant diagram</image:caption>
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      <image:caption>Fabry Rotary Blower diagram</image:caption>
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      <image:caption>Fan Blower diagram</image:caption>
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      <image:caption>Feathering Windmill diagram</image:caption>
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      <image:caption>Foot Bellows diagram</image:caption>
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      <image:caption>Grimshaw Compressed Air Hammer — schematic of the mechanism.</image:caption>
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      <image:caption>Hemispherical Cup Windmill diagram</image:caption>
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      <image:caption>Hodges Compound Blower diagram</image:caption>
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      <image:caption>Hotchkiss Atmospheric Hammer diagram</image:caption>
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      <image:caption>Modern Windmill diagram</image:caption>
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      <image:caption>Pneumatic Hammer diagram</image:caption>
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      <image:caption>Pneumatic Paint Sprayer diagram</image:caption>
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      <image:title>Portable Air-Hydraulic Riveter: Three-Area Intensifier Ledger</image:title>
      <image:caption>Portable Riveter diagram</image:caption>
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      <image:title>Prairie Wind Mill: Ideal Pump-Displacement Ledger</image:title>
      <image:caption>Prairie Wind Mill diagram</image:caption>
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      <image:caption>Raising Sunken Vessels diagram</image:caption>
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      <image:title>Roots Rotary Blower Mechanism: How It Works, Parts, Diagram, and Industrial Uses Explained</image:title>
      <image:caption>Root Rotary Blower diagram</image:caption>
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      <image:title>Single Valve Air Pump Mechanism Explained: How It Works, Parts, Formula, and Uses</image:title>
      <image:caption>Single Valve Air Pump diagram</image:caption>
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      <image:title>Smith&apos;s Circular Bellows: Two-Chamber Animation and Airflow Calculator</image:title>
      <image:caption>Smith&apos;s Circular Bellows diagram</image:caption>
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      <image:caption>Spiral Vane or Cowl diagram</image:caption>
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      <image:title>Three-throw Bellows: Ideal Phase-staggered Flow</image:title>
      <image:caption>Three-throw Bellows diagram</image:caption>
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      <image:title>Toggle-joint Duplex Air Compressor: Historical Linkage and Ideal Ratios</image:title>
      <image:caption>Toggle-joint Duplex Air Compressor diagram</image:caption>
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      <image:caption>Torch Soldering Copper diagram</image:caption>
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      <image:title>Portable Air Compressor: Ideal Fill-time Calculator</image:title>
      <image:caption>Trunk Air Compressor diagram</image:caption>
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      <image:title>Ventilator: Educational Arithmetic Worksheet</image:title>
      <image:caption>Ventilator diagram</image:caption>
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      <image:title>Water-jet Air Compressor: Ideal Head-to-Pressure Calculator</image:title>
      <image:caption>Water-jet Air Compressor diagram</image:caption>
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      <image:caption>Wedding Rotary Blower diagram</image:caption>
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      <image:caption>Wind Gauge diagram</image:caption>
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      <image:caption>Wind Instruments diagram</image:caption>
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      <image:caption>Windmill of Our Grandfathers diagram</image:caption>
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      <image:caption>Air Blast for Moving Coal diagram</image:caption>
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      <image:caption>Arastra Ore Mill diagram</image:caption>
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      <image:caption>Arc Tappet Valve Motion diagram</image:caption>
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      <image:caption>Automatic Dumping Car diagram</image:caption>
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      <image:caption>Automatic Ore Dump diagram</image:caption>
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      <image:caption>Belt Conveyer diagram</image:caption>
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      <image:caption>Cable Conveyer diagram</image:caption>
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      <image:caption>Centrifugal Separator diagram</image:caption>
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      <image:caption>Chain Scraper Conveyer diagram</image:caption>
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      <image:caption>Clam-shell Bucket diagram</image:caption>
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      <image:caption>Coal Dust Press diagram</image:caption>
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      <image:caption>Coal-cutting Machine diagram</image:caption>
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      <image:title>Elevator Dumping Head: Animation and Rim-Acceleration Calculator</image:title>
      <image:caption>Elevator Dumping Head diagram</image:caption>
    </image:image>
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    <lastmod>2026-10-04T23:09:25-07:00</lastmod>
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      <image:title>Elevator Tower Mechanism Explained: Mine Headframe Parts, How It Works, and Hoisting Formula</image:title>
      <image:caption>Elevator Tower diagram</image:caption>
    </image:image>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/floating-dredge</loc>
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      <image:title>Floating Dredge: Cutter Motion and Slurry-Flow Comparison | FIRGELLI</image:title>
      <image:caption>Floating Dredge diagram</image:caption>
    </image:image>
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    <lastmod>2026-10-05T18:26:39-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/free-running-axle.png?v=1777502666</image:loc>
      <image:title>Free-Running Axle: Independent Wheel-Speed Calculator | FIRGELLI</image:title>
      <image:caption>Free Running Axle diagram</image:caption>
    </image:image>
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    <lastmod>2026-10-06T18:10:00-07:00</lastmod>
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      <image:title>Dry Gold Separator: Bellows Animation and Density Calculator | FIRGELLI</image:title>
      <image:caption>Gold Separator diagram</image:caption>
    </image:image>
  </url>
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    <lastmod>2026-10-03T18:13:55-07:00</lastmod>
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      <image:title>Hand Power Rock Drill Mechanism Explained: How It Works, Diagram, Parts, Uses, and Drilling Rate</image:title>
      <image:caption>Hand Power Rock Drill diagram</image:caption>
    </image:image>
  </url>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/horizontal-boom-tower</loc>
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      <image:title>Horizontal Boom Tower: Trolley Context and Coordinate Calculator | FIRGELLI</image:title>
      <image:caption>Horizontal Boom Tower diagram</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-05T06:58:45-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/horse-power-hoisting-drum.png?v=1777502680</image:loc>
      <image:title>Horse-power Hoisting Drum: Ideal Radius and Travel Calculator | FIRGELLI</image:title>
      <image:caption>Horse-power Hoisting Drum diagram</image:caption>
    </image:image>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/hydraulic-balanced-giant-nozzle</loc>
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      <image:title>Hydraulic Balanced Giant Nozzle: Ideal Jet Reaction Calculator | FIRGELLI</image:title>
      <image:caption>Hydraulic Balanced Giant Nozzle diagram</image:caption>
    </image:image>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/iron-ore-separator</loc>
    <lastmod>2026-10-05T09:12:09-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/iron-ore-separator.png?v=1777502687</image:loc>
      <image:title>Iron Ore Separator: Drum Geometry and Flow Calculator | FIRGELLI</image:title>
      <image:caption>Iron Ore Separator diagram</image:caption>
    </image:image>
  </url>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/klondike-mining-machine</loc>
    <lastmod>2026-10-05T10:03:56-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/klondike-mining-machine.png?v=1777502690</image:loc>
      <image:title>Klondike Mining Machine: Lancaster Washer and Gold Mass Balance | FIRGELLI</image:title>
      <image:caption>Klondike Mining Machine diagram</image:caption>
    </image:image>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/link-chain-cutter</loc>
    <lastmod>2026-10-04T23:48:12-07:00</lastmod>
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      <image:title>Link Chain Cutter: Hydraulic Blade Animation and Cylinder Calculator</image:title>
      <image:caption>Link Chain Cutter diagram</image:caption>
    </image:image>
  </url>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/magnetic-ore-separator</loc>
    <lastmod>2026-10-05T00:07:32-07:00</lastmod>
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      <image:title>Magnetic Ore Separator: Drum Topology and Linear Force Estimate</image:title>
      <image:caption>Magnetic Ore Separator diagram</image:caption>
    </image:image>
  </url>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/marine-dredge</loc>
    <lastmod>2026-10-05T00:19:08-07:00</lastmod>
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      <image:title>Marine Dredge: Cutter-Suction Flow and Solids Accounting</image:title>
      <image:caption>Marine Dredge diagram</image:caption>
    </image:image>
  </url>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/mast-and-gaff-hoist</loc>
    <lastmod>2026-10-05T00:21:56-07:00</lastmod>
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      <image:title>Mast-and-Gaff Hoist: Historical Arrangement and Geometry</image:title>
      <image:caption>Mast and Gaff Hoist diagram</image:caption>
    </image:image>
  </url>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/miner-s-safety-lamp</loc>
    <lastmod>2026-10-05T00:45:35-07:00</lastmod>
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      <image:title>Miner&apos;s Safety Lamp: Historical Gauze Component Map</image:title>
      <image:caption>Miner&apos;s Safety Lamp diagram</image:caption>
    </image:image>
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    <lastmod>2026-10-05T00:47:50-07:00</lastmod>
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      <image:title>Mining Skip: Ideal Shaft-Travel Time</image:title>
      <image:caption>Mining Buckets and Skip diagram</image:caption>
    </image:image>
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    <lastmod>2026-10-05T08:48:33-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/multiplex-butterfly-valve.png?v=1777502716</image:loc>
      <image:title>Declared Series Butterfly Discs: Pressure-Allocation Scenario</image:title>
      <image:caption>Multiplex Butterfly Valve diagram</image:caption>
    </image:image>
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      <image:title>Ore Crusher: Blake&apos;s Fixed-and-Movable Jaw Principle</image:title>
      <image:caption>Ore Crusher diagram</image:caption>
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      <image:title>Governor-Rope Elevator Safety Gear: Actuation Topology</image:title>
      <image:caption>Otis Stop for Elevator Cars diagram</image:caption>
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      <image:title>Bailey Ball-and-Pan Pulverizing Mill: Declared Batch Ledger</image:title>
      <image:caption>Pulverizing Ball and Pan Mill diagram</image:caption>
    </image:image>
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      <image:title>Railway Excavator: Declared Cycle-Productivity Ledger</image:title>
      <image:caption>Railway Excavator diagram</image:caption>
    </image:image>
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      <image:title>Railway Steam Shovel Mechanism: How It Works, Parts, Crowd Diagram, and Hoist Cable Calculator</image:title>
      <image:caption>Railway Steam Shovel diagram</image:caption>
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      <image:title>Revolving Hoisting Dredge and Bucket-Line Volume Calculator</image:title>
      <image:caption>Revolving Hoisting Dredge diagram</image:caption>
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      <image:caption>Revolving Pulverizing Mill diagram</image:caption>
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      <image:caption>Rock Drill diagram</image:caption>
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      <image:caption>Rock Drill with Balanced Piston Valve diagram</image:caption>
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      <image:caption>Roller Coal Crusher diagram</image:caption>
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      <image:caption>Rolling Crusher diagram</image:caption>
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      <image:caption>Rope Tramway diagram</image:caption>
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      <image:caption>Steam-driven Ventilating Fan diagram</image:caption>
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      <image:caption>Stone Crusher diagram</image:caption>
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      <image:caption>Slip Hook diagram</image:caption>
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      <image:caption>Adjustable Grip Tongs diagram</image:caption>
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      <image:caption>Arch Truss Bridge diagram</image:caption>
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      <image:caption>Arched Deck Truss Bridge diagram</image:caption>
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      <image:caption>Automatic Balance Crane diagram</image:caption>
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      <image:caption>Automatic Disengaging Grip diagram</image:caption>
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      <image:caption>Balanced Riveting Machine diagram</image:caption>
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      <image:title>Belt-driven Elevator Mechanism: How MRL Traction, Polyurethane Belts &amp; Sheave Geometry Work</image:title>
      <image:caption>Belt-driven Elevator diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cable-hoist-and-conveyer</loc>
    <lastmod>2026-10-04T22:12:35-07:00</lastmod>
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      <image:title>Cable Hoist and Conveyer Mechanism Explained: How It Works, Parts, Reeving Diagram and Uses</image:title>
      <image:caption>Cable Hoist and Conveyer diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cantilever-bridge</loc>
    <lastmod>2026-10-04T22:22:30-07:00</lastmod>
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      <image:title>Cantilever Bridge Mechanism Explained: How It Works, Parts, Moment-Balance Diagram and Uses</image:title>
      <image:caption>Cantilever Bridge diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cantilever-hoisting-and-conveying-machine</loc>
    <lastmod>2026-10-04T22:22:34-07:00</lastmod>
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      <image:title>Cantilever Hoisting and Conveying Machine Mechanism: How It Works, Parts, and Moment Diagram</image:title>
      <image:caption>Cantilever Hoisting and Conveying Machine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cement-testing-machine</loc>
    <lastmod>2026-10-04T21:16:56-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cement-testing-machine.png?v=1777502817</image:loc>
      <image:title>Cement-testing Machine Mechanism: How It Works, Parts, Diagram and Uses Explained</image:title>
      <image:caption>Cement-testing Machine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/concrete-bridge</loc>
    <lastmod>2026-10-04T20:04:43-07:00</lastmod>
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      <image:title>Concrete Girder Bridge: Pretensioning Animation and Strand Stress Calculator</image:title>
      <image:caption>Concrete Bridge diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/concrete-mixer</loc>
    <lastmod>2026-10-04T19:50:40-07:00</lastmod>
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      <image:title>Concrete Mixer Mechanism: How Drum Mixers Work, Parts, Diagram and Mixing Formula Explained</image:title>
      <image:caption>Concrete Mixer diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/conical-mixing-barrel</loc>
    <lastmod>2026-10-04T20:04:51-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/conical-mixing-barrel.png?v=1777502827</image:loc>
      <image:title>Conical Mixing Barrel: Paddle-Shaft Animation and Calculator</image:title>
      <image:caption>Conical Mixing Barrel diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/conical-pug-mill</loc>
    <lastmod>2026-10-04T19:50:57-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/conical-pug-mill.png?v=1777502830</image:loc>
      <image:title>Conical Pug Mill Mechanism Explained: How It Works, Parts, Pressure Diagram and Uses</image:title>
      <image:caption>Conical Pug Mill diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/elevator-safety-gear</loc>
    <lastmod>2026-10-04T23:08:20-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/elevator-safety-gear.png?v=1777502837</image:loc>
      <image:title>Elevator Safety Gear: Wedge Geometry and First-Contact Calculator</image:title>
      <image:caption>Elevator Safety Gear diagram</image:caption>
    </image:image>
  </url>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/expansion-or-anchor-bolts</loc>
    <lastmod>2026-10-04T23:33:30-07:00</lastmod>
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      <image:title>Expansion Anchor: Taper Displacement Calculator | FIRGELLI</image:title>
      <image:caption>Expansion or Anchor Bolts diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/four-guy-mast-derrick</loc>
    <lastmod>2026-10-05T17:43:49-07:00</lastmod>
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      <image:title>Four-Guy Mast Derrick: Gin Pole Motion and Guy-Force Calculator</image:title>
      <image:caption>Four-Guy Mast Derrick — schematic of the mechanism.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/hydraulic-pile-driver</loc>
    <lastmod>2026-10-05T07:29:08-07:00</lastmod>
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      <image:title>Hydraulic Pile Driver: Ideal Drop-Energy Calculator | FIRGELLI</image:title>
      <image:caption>Hydraulic Pile Driver diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/hydraulic-sand-ejector</loc>
    <lastmod>2026-10-06T18:19:26-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/hydraulic-sand-ejector.png?v=1777502849</image:loc>
      <image:title>Hydraulic Sand Ejector: Flow Paths and Unit Calculator | FIRGELLI</image:title>
      <image:caption>Hydraulic Sand Ejector diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lever-grip-tongs</loc>
    <lastmod>2026-10-04T23:30:35-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/lever-grip-tongs.png?v=1777502853</image:loc>
      <image:title>Lever Grip-Tongs: Hiscox Item 1461 Motion Viewer</image:title>
      <image:caption>Lever Grip Tongs diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/log-sawing-machine</loc>
    <lastmod>2026-10-04T23:58:38-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/log-sawing-machine.png?v=1777502857</image:loc>
      <image:title>Log Sawing Machine Mechanism: How a Bandsaw Mill Works, Feed Rate Formula, Diagram and Calculator</image:title>
      <image:caption>Log Sawing Machine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/melan-bridge</loc>
    <lastmod>2026-10-05T00:34:09-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/melan-bridge.png?v=1777502861</image:loc>
      <image:title>Melan Arch Bridge: Embedded Steel Ribs and Ideal Arch Reactions</image:title>
      <image:caption>Melan Bridge diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/package-elevator</loc>
    <lastmod>2026-10-05T09:49:01-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/package-elevator.png?v=1777502864</image:loc>
      <image:title>Package Elevator (VRC): Declared Two-Post Layout</image:title>
      <image:caption>Package Elevator diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/pneumatic-dumping-car</loc>
    <lastmod>2026-10-04T10:07:32-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/pneumatic-dumping-car.png?v=1777502867</image:loc>
      <image:title>Pneumatic Dumping Car: Exact Pivot-and-Cylinder Geometry</image:title>
      <image:caption>Pneumatic Dumping Car diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/portable-steam-derrick</loc>
    <lastmod>2026-10-04T11:53:56-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/portable-steam-derrick.png?v=1777502870</image:loc>
      <image:title>Portable Steam Derrick: Ideal Reeving and Boom Geometry</image:title>
      <image:caption>Portable Steam Derrick diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/post-augur</loc>
    <lastmod>2026-10-04T12:16:11-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/post-augur.png?v=1777502873</image:loc>
      <image:title>Post Auger: Exact Single-Start Helical Flight Geometry</image:title>
      <image:caption>Post Augur diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/post-crane</loc>
    <lastmod>2026-10-04T12:24:00-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/post-crane.png?v=1777502876</image:loc>
      <image:title>Post Crane: Declared Load and Boom Moment Ledger</image:title>
      <image:caption>Post Crane diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/pug-mill</loc>
    <lastmod>2026-10-04T14:41:34-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/pug-mill.png?v=1777502879</image:loc>
      <image:title>Twin-Shaft Pugmill: Hold-Up, Throughput, and Shaft-Turn Ledger</image:title>
      <image:caption>Pug Mill diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/queen-post-roof-truss</loc>
    <lastmod>2026-10-04T15:55:13-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/queen-post-roof-truss.png?v=1777502882</image:loc>
      <image:title>Queen-Post Roof Truss: Ideal Apex-Joint Screen</image:title>
      <image:caption>Queen Post Roof Truss diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/releasing-grip</loc>
    <lastmod>2026-10-05T04:06:28-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/releasing-grip.png?v=1777502885</image:loc>
      <image:title>Releasing Grip: Latch Animation and Force-Ratio Calculator</image:title>
      <image:caption>Releasing Grip diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/right-and-left-hand-turnbuckle</loc>
    <lastmod>2026-10-05T09:34:34-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/right-and-left-hand-turnbuckle.png?v=1777502889</image:loc>
      <image:title>Right and Left Hand Turnbuckle Mechanism: How It Works, Diagram, Parts and Uses Explained</image:title>
      <image:caption>Right and Left Hand Turnbuckle diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/rolling-lift-bridge</loc>
    <lastmod>2026-10-04T17:42:24-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/rolling-lift-bridge.png?v=1777502892</image:loc>
      <image:title>Rolling Lift Bridge Mechanism: How Scherzer Bascule Spans Roll Open with Diagram and Calculator</image:title>
      <image:caption>Rolling Lift Bridge diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/square-box-side-dumping-car</loc>
    <lastmod>2026-10-04T17:48:55-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/square-box-side-dumping-car.png?v=1777502898</image:loc>
      <image:title>Square Box Side-dumping Car Mechanism: How the Trunnion Pivot, Trip Latch, and Tipping Moment Work</image:title>
      <image:caption>Square Box Side-dumping Car diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/steel-arched-concrete-bridge</loc>
    <lastmod>2026-10-04T17:49:31-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/steel-arched-concrete-bridge.png?v=1777502901</image:loc>
      <image:title>Steel Arched Concrete Bridge Mechanism: How Melan Composite Arches Work, Parts, and Thrust Diagram</image:title>
      <image:caption>Steel Arched Concrete Bridge diagram</image:caption>
    </image:image>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/stone-grinding-and-polishing-machine</loc>
    <lastmod>2026-10-05T07:48:35-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/stone-grinding-and-polishing-machine.png?v=1777502904</image:loc>
      <image:title>Stone Grinding and Polishing: Guided-lap Animation and Calculator</image:title>
      <image:caption>Stone Grinding and Polishing Machine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/swing-bridge</loc>
    <lastmod>2026-10-05T07:49:18-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/swing-bridge.png?v=1777502911</image:loc>
      <image:title>Swing Bridge: Ideal Opening-motion Calculator</image:title>
      <image:caption>Swing Bridge diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/swing-derrick</loc>
    <lastmod>2026-10-05T07:49:20-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/swing-derrick.png?v=1777502914</image:loc>
      <image:title>Swing Derrick: Radius and Ideal Swing Calculator</image:title>
      <image:caption>Swing Derrick diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/swing-boom-crane</loc>
    <lastmod>2026-10-05T07:49:21-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/swing-boom-crane.png?v=1777502917</image:loc>
      <image:title>Swing-boom Crane: Ideal Load-moment Calculator</image:title>
      <image:caption>Swing-boom Crane diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/swinging-derrick-crane</loc>
    <lastmod>2026-10-05T07:49:25-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/swinging-derrick-crane.png?v=1777502921</image:loc>
      <image:title>Swinging Derrick Crane: Load-moment Comparison</image:title>
      <image:caption>Swinging Derrick Crane diagram</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-05T07:49:32-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/swivel-shackle-slip-hook.png?v=1777502924</image:loc>
      <image:title>Swivel Shackle Slip Hook: Force-vector Illustration</image:title>
      <image:caption>Swivel Shackle Slip Hook diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/swivelling-dumping-car</loc>
    <lastmod>2026-10-05T07:49:33-07:00</lastmod>
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      <image:title>Swivelling Dumping Car: Ideal Payload-moment Calculator</image:title>
      <image:caption>Swivelling Dumping Car diagram</image:caption>
    </image:image>
  </url>
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    <lastmod>2026-10-05T07:50:44-07:00</lastmod>
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      <image:title>Timber Arches: Ideal Three-hinged Tied-arch Equilibrium</image:title>
      <image:caption>Timber Cords and Arches diagram</image:caption>
    </image:image>
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  <url>
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    <lastmod>2026-10-05T07:50:47-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/timber-splicing.png?v=1777502934</image:loc>
      <image:title>Timber Splicing: Illustrative Scarf and Bolt-hole Dimensions</image:title>
      <image:caption>Timber Splicing diagram</image:caption>
    </image:image>
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    <lastmod>2026-10-05T07:51:03-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/toggle-stump-puller.png?v=1777502937</image:loc>
      <image:title>Toggle Stump Puller: Historical Arrangement and Ideal Toggle Ratios</image:title>
      <image:caption>Toggle Stump Puller diagram</image:caption>
    </image:image>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/truss-roof</loc>
    <lastmod>2026-10-05T07:52:12-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/truss-roof.png?v=1777502940</image:loc>
      <image:title>Truss Roof: Three-member Ideal Force Calculator</image:title>
      <image:caption>Truss Roof diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/wharf-crane</loc>
    <lastmod>2026-10-05T07:55:44-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/wharf-crane.png?v=1777502943</image:loc>
      <image:title>Wharf Crane: Load-radius and Counterweight Comparison</image:title>
      <image:caption>Wharf Crane diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/silent-ratchet-friction</loc>
    <lastmod>2026-10-04T18:30:09-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/silent-ratchet-friction.png?v=1777502950</image:loc>
      <image:title>Silent Ratchet (friction) Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses</image:title>
      <image:caption>Silent Ratchet (friction) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/intermittent-motion</loc>
    <lastmod>2026-10-05T08:45:06-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/intermittent-motion.png?v=1777502953</image:loc>
      <image:title>Intermittent Motion: Geneva Index and Dwell Calculator | FIRGELLI</image:title>
      <image:caption>Intermittent Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lantern-wheel-stops</loc>
    <lastmod>2026-10-06T03:38:58-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/lantern-wheel-stops-mechanism.png?v=1791283138</image:loc>
      <image:title>Lantern-wheel Stops: Roller Clearance and Motion Calculator</image:title>
      <image:caption>Lantern-wheel Stops — schematic of the mechanism.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/spur-gear-stops</loc>
    <lastmod>2026-10-04T17:44:58-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/spur-gear-stops.png?v=1777502960</image:loc>
      <image:title>Spur-gear Stops Mechanism: How It Works, Diagram, Formula, and Uses Explained</image:title>
      <image:caption>Spur-gear Stops diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bent-spring-driver-with-strong-spring-catch</loc>
    <lastmod>2026-10-04T20:27:59-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bent-spring-driver-with-strong-spring-catch.png?v=1777502963</image:loc>
      <image:title>Bent-spring Driver with Strong-spring Catch: How the Mechanism Works, Parts, Formula, and Uses</image:title>
      <image:caption>Bent-spring Driver with Strong-spring Catch diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cam-to-double-rack-frame-with-governor</loc>
    <lastmod>2026-10-04T20:00:55-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cam-to-double-rack-frame-with-governor.png?v=1777502966</image:loc>
      <image:title>Cam to Double-rack Frame with Governor: Mechanism, How It Works, Parts, Uses &amp; Formula</image:title>
      <image:caption>Cam to Double-rack Frame with Governor diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/continuous-rotary-to-intermittent-via-cam-and-disk</loc>
    <lastmod>2026-10-04T20:09:00-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/continuous-rotary-to-intermittent-via-cam-and-disk.png?v=1777502970</image:loc>
      <image:title>Continuous Rotary to Intermittent via Cam and Disk: How It Works, Parts, Formula and Uses</image:title>
      <image:caption>Continuous Rotary to Intermittent via Cam and Disk diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/crown-ratchet-rag-wheel</loc>
    <lastmod>2026-10-04T20:35:51-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/crown-ratchet-rag-wheel.png?v=1777502973</image:loc>
      <image:title>Crown-ratchet (rag-wheel) Mechanism Explained: How It Works, Parts, Diagram and Uses</image:title>
      <image:caption>Crown-ratchet (rag-wheel) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/driving-disk-with-rim-and-stops</loc>
    <lastmod>2026-10-04T22:28:45-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/driving-disk-with-rim-and-stops.png?v=1777502976</image:loc>
      <image:title>Driving Disk with Rim and Stops Mechanism Explained: How It Works, Parts, Formula &amp; Uses</image:title>
      <image:caption>Driving Disk with Rim and Stops diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/driving-wheel-with-internal-rim-guard</loc>
    <lastmod>2026-10-04T22:29:41-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/driving-wheel-with-internal-rim-guard.png?v=1777502979</image:loc>
      <image:title>Driving Wheel with Internal Rim Guard: How It Works, Parts, Formula &amp; Diagram Explained</image:title>
      <image:caption>Driving Wheel with Internal Rim Guard diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/maltese-cross-mechanism</loc>
    <lastmod>2026-10-05T00:12:37-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/maltese-cross-mechanism.png?v=1777502982</image:loc>
      <image:title>Maltese Cross Mechanism: Exact External-Geneva Timing</image:title>
      <image:caption>Maltese Cross Mechanism diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/geneva-drive-external</loc>
    <lastmod>2026-10-04T20:40:27-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/geneva-drive-external.png?v=1777502986</image:loc>
      <image:title>Geneva Drive (external) Mechanism Explained: How It Works, Diagram, Parts, Formula &amp; Uses</image:title>
      <image:caption>Geneva Drive (external) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/geneva-drive-internal</loc>
    <lastmod>2026-10-05T03:57:31-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/geneva-drive-internal.png?v=1777502989</image:loc>
      <image:title>Internal Geneva Drive: Index Angle and Dwell Calculator | FIRGELLI</image:title>
      <image:caption>Geneva Drive (internal) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/geneva-drive-spherical</loc>
    <lastmod>2026-10-06T06:19:47-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/geneva-drive-spherical-mechanism.png?v=1791292787</image:loc>
      <image:title>Spherical Geneva Drive: Right-Angle Indexing Animation and Calculator</image:title>
      <image:caption>Spherical Geneva Drive — schematic of the mechanism.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/jumping-intermittent-rotary-drop-and-pawl</loc>
    <lastmod>2026-10-05T09:41:50-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/jumping-intermittent-rotary-drop-and-pawl.png?v=1777502995</image:loc>
      <image:title>Drop-and-Pawl Intermittent Rotation: Indexing Calculator | FIRGELLI</image:title>
      <image:caption>Jumping Intermittent Rotary (drop-and-pawl) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lever-to-slotted-rack-via-two-hooked-pawls</loc>
    <lastmod>2026-10-04T23:33:30-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/lever-to-slotted-rack-via-two-hooked-pawls.png?v=1777502999</image:loc>
      <image:title>Lever to Slotted Rack via Two Hooked Pawls: How This Indexing Mechanism Works, Parts &amp; Uses</image:title>
      <image:caption>Lever to Slotted Rack via Two Hooked Pawls diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/modification-of-two-pawl-lever</loc>
    <lastmod>2026-10-05T00:58:52-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/modification-of-two-pawl-lever.png?v=1777503002</image:loc>
      <image:title>Modified Two-Pawl Lever: Ideal Indexing</image:title>
      <image:caption>Modification of Two-pawl Lever diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/mutilated-bevel-gear-for-opposing-intermittent</loc>
    <lastmod>2026-10-05T08:54:51-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/mutilated-bevel-gear-for-opposing-intermittent.png?v=1777503005</image:loc>
      <image:title>Mutilated Bevel Gear: Opposed Intermittent Outputs A and B</image:title>
      <image:caption>Mutilated Bevel Gear for Opposing Intermittent diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/mutilated-wheel-pinion-intermittent</loc>
    <lastmod>2026-10-05T08:56:58-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/mutilated-wheel-pinion-intermittent.png?v=1777503008</image:loc>
      <image:title>Mutilated Gear Intermittent Drive: Tooth Sector and Holding Pair</image:title>
      <image:caption>Mutilated Wheel-pinion Intermittent diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/otis-safety-stop-for-hoisting-platform</loc>
    <lastmod>2026-10-05T09:41:57-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/otis-safety-stop-for-hoisting-platform.png?v=1777503011</image:loc>
      <image:title>Otis 1861 Hoisting Safety Catch: Hooked Rack-and-Pawl Principle</image:title>
      <image:caption>Otis Safety-stop for Hoisting Platform diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/rack-and-pawl</loc>
    <lastmod>2026-10-04T16:23:44-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/rack-and-pawl.png?v=1777503015</image:loc>
      <image:title>Rack and Pawl: Declared Index-Pitch Ledger</image:title>
      <image:caption>Rack and Pawl diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/rack-rod-from-mutilated-spur-gear</loc>
    <lastmod>2026-10-04T16:37:12-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/rack-rod-from-mutilated-spur-gear.png?v=1777503018</image:loc>
      <image:title>Rack-Rod from a Mutilated Spur Gear: Ideal Advance/Dwell Ledger</image:title>
      <image:caption>Rack-rod From Mutilated Spur-gear diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/ratchet-wheel-stops</loc>
    <lastmod>2026-10-04T22:08:35-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/ratchet-wheel-stops.png?v=1777503022</image:loc>
      <image:title>Ratchet-wheel Stops: Tooth Pitch, Pawl Engagement and Resolution Calculator</image:title>
      <image:caption>Ratchet-wheel Stops diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/reciprocating-to-intermittent-circular-via-pawl</loc>
    <lastmod>2026-10-05T00:13:55-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/reciprocating-to-intermittent-circular-via-pawl.png?v=1777503026</image:loc>
      <image:title>Reciprocating to Intermittent Circular via Pawl Mechanism: How It Works, Parts, Diagram, and Uses</image:title>
      <image:caption>Reciprocating to Intermittent Circular via Pawl diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/reversing-ratchet</loc>
    <lastmod>2026-10-05T06:43:11-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/reversing-ratchet.png?v=1777503029</image:loc>
      <image:title>Reversing Ratchet Mechanism: How It Works, Parts, Diagram, and Tooth-Count Formula</image:title>
      <image:caption>Reversing Ratchet diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/single-tooth-driving-wheel-and-notched-wheel</loc>
    <lastmod>2026-10-04T17:44:40-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/single-tooth-driving-wheel-and-notched-wheel.png?v=1777503032</image:loc>
      <image:title>Single-tooth Driving Wheel and Notched Wheel: How This Intermittent Indexing Mechanism Works</image:title>
      <image:caption>Single-tooth Driving Wheel and Notched Wheel diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/single-tooth-small-driver-lock-by-rim</loc>
    <lastmod>2026-10-04T17:44:42-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/single-tooth-small-driver-lock-by-rim.png?v=1777503035</image:loc>
      <image:title>Single-tooth Small Driver, Lock by Rim Mechanism Explained: How It Works, Parts, and Diagram</image:title>
      <image:caption>Single-tooth Small Driver, Lock by Rim diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/single-tooth-small-wheel-to-large-intermittent</loc>
    <lastmod>2026-10-04T17:44:43-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/single-tooth-small-wheel-to-large-intermittent.png?v=1777503038</image:loc>
      <image:title>Single-tooth Small Wheel to Large Intermittent Mechanism: How It Works, Parts, Formula &amp; Uses Explained</image:title>
      <image:caption>Single-tooth Small Wheel to Large Intermittent diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/star-wheel-ratchet</loc>
    <lastmod>2026-10-04T17:49:06-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/star-wheel-ratchet.png?v=1777503042</image:loc>
      <image:title>Star-wheel Ratchet Mechanism: How It Works, Parts, Diagram, and Indexing Formula Explained</image:title>
      <image:caption>Star-wheel Ratchet diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/tappet-stud-and-ratchet-for-revolution-counter</loc>
    <lastmod>2026-10-05T07:49:48-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/tappet-stud-and-ratchet-for-revolution-counter.png?v=1777503045</image:loc>
      <image:title>Tappet-stud Revolution Counter: Entered Count Comparison</image:title>
      <image:caption>Tappet Stud and Ratchet for Revolution Counter diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/tappet-and-stud-counter-wheel</loc>
    <lastmod>2026-10-05T07:49:51-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/tappet-and-stud-counter-wheel.png?v=1777503048</image:loc>
      <image:title>Tappet-and-stud Counter Wheel: Ideal Indexing Calculator</image:title>
      <image:caption>Tappet-and-stud Counter Wheel diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/tappet-arm-to-ratchet-wheel-intermittent</loc>
    <lastmod>2026-10-05T07:49:52-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/tappet-arm-to-ratchet-wheel-intermittent.png?v=1777503051</image:loc>
      <image:title>Tappet-arm Ratchet: Ideal Intermittent Indexing Calculator</image:title>
      <image:caption>Tappet-arm to Ratchet-wheel Intermittent diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/tilt-hammer-motion-cam-wiper</loc>
    <lastmod>2026-10-05T07:50:41-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/tilt-hammer-motion-cam-wiper.png?v=1777503054</image:loc>
      <image:title>Tilt Hammer: Ideal Cam-wiper Event Timing</image:title>
      <image:caption>Tilt-hammer Motion (cam Wiper) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/treadles-and-chain-to-ratchet-wheel</loc>
    <lastmod>2026-10-05T07:51:53-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/treadles-and-chain-to-ratchet-wheel.png?v=1777503058</image:loc>
      <image:title>Treadles and Chain to Ratchet Wheel: Angular Pitch Comparison</image:title>
      <image:caption>Treadles and Chain to Ratchet Wheel diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/two-ratchet-arc-nearly-continuous-rotary</loc>
    <lastmod>2026-10-05T07:52:29-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/two-ratchet-arc-nearly-continuous-rotary.png?v=1777503061</image:loc>
      <image:title>Two Ratchet Arcs: Brown Movement 83 and Ideal Angular Advance</image:title>
      <image:caption>Two Ratchet-arc Nearly Continuous Rotary diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/two-pawl-continuous-rectilinear-ratchet-bar</loc>
    <lastmod>2026-10-05T07:52:37-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/two-pawl-continuous-rectilinear-ratchet-bar.png?v=1777503064</image:loc>
      <image:title>Two-pawl Ratchet Bar: Alternating Action and Mean-rate Calculator</image:title>
      <image:caption>Two-pawl Continuous Rectilinear Ratchet Bar diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/vibrating-arm-pawl-ratchet</loc>
    <lastmod>2026-10-05T07:54:34-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/vibrating-arm-pawl-ratchet.png?v=1777503068</image:loc>
      <image:title>Vibrating-Arm Pawl Ratchet: Animation and Indexing Calculator</image:title>
      <image:caption>Vibrating-arm Pawl Ratchet diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/watch-winding-stop-form-2</loc>
    <lastmod>2026-10-05T07:55:00-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/watch-winding-stop-form-2.png?v=1777503071</image:loc>
      <image:title>Watch-Winding Stop Form 2: Animation and Angle-Count Calculator</image:title>
      <image:caption>Watch-winding Stop (form 2) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/watch-winding-stop-form-3</loc>
    <lastmod>2026-10-05T07:55:02-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/watch-winding-stop-form-3.png?v=1777503074</image:loc>
      <image:title>Watch-Winding Stop Form 3: Animation and Turn-Count Calculator</image:title>
      <image:caption>Watch-winding Stop (form 3) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/worm-gear-jumping-motion-with-cam</loc>
    <lastmod>2026-10-05T07:56:36-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
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      <image:title>Worm-gear Jumping Motion with Cam Mechanism: How It Works, Parts, Uses &amp; Snap Energy Formula</image:title>
      <image:caption>Worm-gear Jumping Motion with Cam diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/worm-gear-jumping-motion-with-tumbler</loc>
    <lastmod>2026-10-05T07:56:37-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
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      <image:title>Worm-gear Jumping Motion with Tumbler Explained: How It Works, Parts, Uses, and Step-Rate Formula</image:title>
      <image:caption>Worm-gear Jumping Motion with Tumbler diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/worm-gear-jumping-motion-with-weight</loc>
    <lastmod>2026-10-05T07:56:39-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/worm-gear-jumping-motion-with-weight.png?v=1777503083</image:loc>
      <image:title>Worm-gear Jumping Motion with Weight Mechanism: How It Works, Diagram, Parts and Uses</image:title>
      <image:caption>Worm-gear Jumping Motion with Weight diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/gasoline-motor-car</loc>
    <lastmod>2026-10-05T03:26:08-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
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      <image:title>Gasoline Motor Car: Four-Stroke Cycle Calculator | FIRGELLI</image:title>
      <image:caption>Gasoline Motor Car diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/adjustable-link</loc>
    <lastmod>2026-10-04T23:16:56-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
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      <image:title>Adjustable Link Mechanism: Threaded Length Adjustment and Lever-Angle Calculator</image:title>
      <image:caption>Adjustable Link diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/automatic-oiler</loc>
    <lastmod>2026-10-05T09:18:34-07:00</lastmod>
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      <image:title>Automatic Oiler Mechanism: How It Works, Cross-Section Diagram, Parts and Calculator</image:title>
      <image:caption>Automatic Oiler diagram</image:caption>
    </image:image>
  </url>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/caloric-engine</loc>
    <lastmod>2026-10-04T20:45:32-07:00</lastmod>
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      <image:title>Caloric Engine Mechanism Explained: How Hot-Air Engines Work, Parts, Diagram and Uses</image:title>
      <image:caption>Caloric Engine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/carburetter</loc>
    <lastmod>2026-10-04T20:48:58-07:00</lastmod>
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      <image:title>Carburetter Mechanism Explained: How It Works, Parts, Diagram, and Jet Sizing Calculator</image:title>
      <image:caption>Carburetter diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/connecting-rod-end</loc>
    <lastmod>2026-10-04T20:05:43-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:title>Connecting Rod End Mechanism: How the Big and Small Ends Work, Parts and Diagram</image:title>
      <image:caption>Connecting Rod End diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/connecting-rod-head</loc>
    <lastmod>2026-10-04T19:50:53-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/connecting-rod-head.png?v=1777503105</image:loc>
      <image:title>Connecting Rod Head Mechanism Explained: Big-End Parts, Bolt Stretch, Bearing Crush Diagram</image:title>
      <image:caption>Connecting Rod Head diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/crank-rod-head-adjustment</loc>
    <lastmod>2026-10-04T20:26:56-07:00</lastmod>
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      <image:title>Crank-rod Head Adjustment Explained: How It Works, Diagram, Formula &amp; Calculator</image:title>
      <image:caption>Crank-rod Head Adjustment diagram</image:caption>
    </image:image>
  </url>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/diesel-motor</loc>
    <lastmod>2026-10-04T21:23:50-07:00</lastmod>
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      <image:title>Diesel Motor Mechanism: How Compression Ignition Works, Parts, Diagram, Animation and Real Uses</image:title>
      <image:caption>Diesel Motor diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/differential-cam-throw</loc>
    <lastmod>2026-10-04T21:23:54-07:00</lastmod>
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      <image:title>Differential Cam Throw: Selectable Cam Strokes and Roller-Follower Motion</image:title>
      <image:caption>Differential Cam Throw diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/double-grooved-eccentric-valve-gear-for-a-four-cycle-gas-engine</loc>
    <lastmod>2026-10-04T21:58:31-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/double-grooved-eccentric-valve-gear-for-a-four-cycle-gas-engine.png?v=1777503118</image:loc>
      <image:title>Double-grooved Eccentric Valve Gear for a Four-cycle Gas Engine: Mechanism, Parts and Diagram Explained</image:title>
      <image:caption>Double-grooved Eccentric Valve Gear for a Four-cycle Gas Engine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/forked-end-connecting-rod</loc>
    <lastmod>2026-10-05T13:58:40-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
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      <image:title>Forked End Connecting Rod Mechanism Explained: How It Works, Parts, Diagram and Uses</image:title>
      <image:caption>Forked End Connecting Rod diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/four-cylinder-motor</loc>
    <lastmod>2026-10-05T17:21:08-07:00</lastmod>
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      <image:title>Four-Cylinder Engine: Firing Interval and Frequency Calculator | FIRGELLI</image:title>
      <image:caption>Four Cylinder Motor diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/valve-gear</loc>
    <lastmod>2026-10-05T07:53:19-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/valve-gear.png?v=1777503128</image:loc>
      <image:title>Valve Gear: Ideal Gross Lift from Lobe Lift and Rocker Ratio</image:title>
      <image:caption>Valve Gear diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/gasoline-atomizers</loc>
    <lastmod>2026-10-05T22:07:20-07:00</lastmod>
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      <image:title>Gasoline Atomizers: Swirl Animation and Ideal-Flow Calculator</image:title>
      <image:caption>Gasoline Atomizers — schematic of the mechanism.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/gasoline-carriage-motor</loc>
    <lastmod>2026-10-03T15:52:46-07:00</lastmod>
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      <image:title>Gasoline Carriage Motor Mechanism: How It Works, Diagram, Parts, and Uses Explained</image:title>
      <image:caption>Gasoline Carriage Motor diagram</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-05T03:21:56-07:00</lastmod>
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      <image:title>Gasoline Engine: Four-Stroke Motion and Power-Density Calculator | FIRGELLI</image:title>
      <image:caption>Gasoline Engine diagram</image:caption>
    </image:image>
  </url>
  <url>
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      <image:title>Gasoline Vaporizer: Heated Inlet Animation and Heat-Load Calculator</image:title>
      <image:caption>Gasoline Vaporizer — schematic of the mechanism.</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-06T03:53:15-07:00</lastmod>
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      <image:title>Governor and Variable Cam: Sleeve Motion and Flyweight Calculator</image:title>
      <image:caption>Governor and Variable Cam — schematic of the mechanism.</image:caption>
    </image:image>
  </url>
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    <lastmod>2026-10-05T08:23:29-07:00</lastmod>
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      <image:title>Ignition Plug: Voltage and Entered-Threshold Comparison | FIRGELLI</image:title>
      <image:caption>Ignition Plug diagram</image:caption>
    </image:image>
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      <image:caption>Inertia Governor diagram</image:caption>
    </image:image>
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      <image:caption>Inlet Valve diagram</image:caption>
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      <image:caption>Jump Spark Coil diagram</image:caption>
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      <image:caption>Link or Connecting Rod diagram</image:caption>
    </image:image>
  </url>
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      <image:title>Watt Pendulum Governor: Ideal Height and Sleeve Geometry</image:title>
      <image:caption>Pendulum Governor diagram</image:caption>
    </image:image>
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      <image:title>Plumb-Bob Governor: Reciprocating Push-Rod Inertia Mechanism</image:title>
      <image:caption>Plumb-bob Governor diagram</image:caption>
    </image:image>
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      <image:title>Quasiturbine Patent Topology: Declared Cycle Ledger</image:title>
      <image:caption>Quasiturbine diagram</image:caption>
    </image:image>
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      <image:caption>Ross Yoke Mechanism diagram</image:caption>
    </image:image>
  </url>
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      <image:caption>Scotch Yoke Engine diagram</image:caption>
    </image:image>
  </url>
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      <image:caption>Simple Gas or Gasoline Engine diagram</image:caption>
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      <image:caption>Solid Strap End diagram</image:caption>
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      <image:caption>Stake Puller diagram</image:caption>
    </image:image>
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      <image:title>Stalk Puller Mechanism Explained: How Counter-Rotating Rolls, PTO Drive, and Pull Force Work</image:title>
      <image:caption>Stalk Puller diagram</image:caption>
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      <image:caption>Steel Ball Adjustment diagram</image:caption>
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      <image:caption>Stirling Engine Alpha diagram</image:caption>
    </image:image>
  </url>
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      <image:caption>Street Railway Gas Motor Passenger Car diagram</image:caption>
    </image:image>
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      <image:caption>Swashplate Engine diagram</image:caption>
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      <image:title>Trunk Piston and Connecting Rod: Ideal Angle and Force Comparison</image:title>
      <image:caption>Trunk Piston Rod diagram</image:caption>
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  </url>
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      <image:title>Sight-feed Oiler: Drop-rate and Volume Comparison</image:title>
      <image:caption>Uniform Automatic Oiler diagram</image:caption>
    </image:image>
  </url>
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      <image:title>Union Gas Engine: Historical Arrangement and Ideal Power Comparison</image:title>
      <image:caption>Union Model Gas Engine diagram</image:caption>
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      <image:caption>Vertical Gasoline Engine diagram</image:caption>
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      <image:caption>Vertical Kerosene Oil Engine diagram</image:caption>
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      <image:title>Wankel Rotary Engine: Rotor Motion and Fixed-ratio Timing</image:title>
      <image:caption>Wankel Rotary Engine diagram</image:caption>
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      <image:caption>Z-crank Engine diagram</image:caption>
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      <image:title>Flexible Coupling: Parallel and Angular Alignment Comparison | FIRGELLI</image:title>
      <image:caption>Flexible Coupling diagram</image:caption>
    </image:image>
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      <image:caption>Alternating Current Transformer diagram</image:caption>
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      <image:caption>Ampere Meter diagram</image:caption>
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      <image:caption>Arc Light and Regulating Gear diagram</image:caption>
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      <image:caption>Car Truck Motors diagram</image:caption>
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      <image:caption>Consequent-pole Compound Generator diagram</image:caption>
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      <image:caption>Electric Car Brake diagram</image:caption>
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      <image:caption>Electric Escapement diagram</image:caption>
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      <image:caption>Electric Fan diagram</image:caption>
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      <image:caption>Electric Fusible Cut-out diagram</image:caption>
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      <image:caption>Electric Generator Construction diagram</image:caption>
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      <image:caption>Electric Hoist diagram</image:caption>
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      <image:caption>Electric Igniter diagram</image:caption>
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      <image:caption>Electric Perforating Pen diagram</image:caption>
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      <image:caption>Electric Sad Iron diagram</image:caption>
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      <image:caption>Electric Soldering Copper diagram</image:caption>
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      <image:caption>Electro Magnetic Ratchet Driver diagram</image:caption>
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      <image:caption>Four-pole Compound Generator diagram</image:caption>
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      <image:caption>Luminous Fountain diagram</image:caption>
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      <image:caption>Magneto-electric Machine diagram</image:caption>
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      <image:caption>Non-arcing Lightning Arrester diagram</image:caption>
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      <image:caption>Pocket Electric Light diagram</image:caption>
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      <image:caption>Portable Electric Motor Drill Plant diagram</image:caption>
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      <image:caption>Rheostat or Resistance Coils diagram</image:caption>
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      <image:caption>Ring Armature diagram</image:caption>
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      <image:caption>Sectional Feeder System diagram</image:caption>
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      <image:caption>Series Wound Motor or Generator diagram</image:caption>
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      <image:caption>Shuttle Armature diagram</image:caption>
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      <image:caption>Single-pole Shunt Generator diagram</image:caption>
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      <image:caption>Solenoid Electric Fan diagram</image:caption>
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      <image:caption>Sparking Dynamo diagram</image:caption>
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      <image:title>Street Railway Single Motor: Traction Gear-ratio Calculator</image:title>
      <image:caption>Street Railway Single Motor diagram</image:caption>
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    <lastmod>2026-10-05T07:49:56-07:00</lastmod>
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      <image:caption>Telephone Receiver diagram</image:caption>
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      <image:title>Telephone Transmitter: Fixed-voltage Resistance Comparison</image:title>
      <image:caption>Telephone Transmitter diagram</image:caption>
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      <image:caption>Triple-expansion Engine and Multipolar Dynamo diagram</image:caption>
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      <image:caption>Trolley Car diagram</image:caption>
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      <image:title>Quarter-Turn V-Belt Drive: Gates Guideline Comparison</image:title>
      <image:caption>Quarter-turn Belt Drive diagram</image:caption>
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      <image:title>V-grooved Rope Pulley: Ideal Groove-reaction Geometry</image:title>
      <image:caption>V-grooved Rope Pulley diagram</image:caption>
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    <lastmod>2026-10-04T17:42:57-07:00</lastmod>
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      <image:caption>Round-rope Drive diagram</image:caption>
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      <image:caption>Anti-friction Bearing for Pulley diagram</image:caption>
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      <image:title>Open Belt Drive: Brown Movement 1</image:title>
      <image:caption>Open Belt Drive diagram</image:caption>
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      <image:caption>Belt at Right Angles via Guide Pulleys diagram</image:caption>
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      <image:caption>Belt at Right Angles Without Guide Pulleys diagram</image:caption>
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  <url>
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      <image:caption>Belt at Right Angles, Axes in Same Plane diagram</image:caption>
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      <image:caption>Belt Engage/disengage/reverse for Upright Shaft diagram</image:caption>
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      <image:caption>Belt with Movable Tightening Pulley diagram</image:caption>
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      <image:title>Galle Chain Mechanism: Plate Stacks, Cross-Pins and Load Comparison</image:title>
      <image:caption>Block Chain (galle Chain) Drive diagram</image:caption>
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      <image:title>Chain and Pulley (form 1) Mechanism Explained: How It Works, Diagram, Parts and Uses</image:title>
      <image:caption>Chain and Pulley (form 1) diagram</image:caption>
    </image:image>
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      <image:title>Chain and Pulley (form 2) Mechanism Explained: How It Works, Parts, Formula and Uses</image:title>
      <image:caption>Chain and Pulley (form 2) diagram</image:caption>
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      <image:caption>Concave-grooved Pulley for Round Band diagram</image:caption>
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      <image:caption>Crossed Belt Drive diagram</image:caption>
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      <image:title>Detachable Chain Link: Spring-Clip Roller-Chain Assembly and Load Comparison</image:title>
      <image:caption>Detachable Chain Link diagram</image:caption>
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      <image:caption>Expanding Pulley diagram</image:caption>
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      <image:caption>Flanged Pulley for Flat Belt diagram</image:caption>
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      <image:title>Friction Pulley with Eccentric Arms: One-Way Drive Animation</image:title>
      <image:caption>Friction Pulley with Eccentric Arms — schematic of the mechanism.</image:caption>
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      <image:title>Modified Cone Pulleys: Exact Open-Belt Length</image:title>
      <image:caption>Modified Cone Pulleys diagram</image:caption>
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      <image:title>Single Movable Pulley: Ideal Rope Tension and Displacement Geometry</image:title>
      <image:caption>Movable Lower Pulley (single-movable) diagram</image:caption>
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      <image:title>Movable Pulley with Counterweight: Exact Balance and Travel Ratio</image:title>
      <image:caption>Movable Pulley with Constant-tension Counterweight diagram</image:caption>
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  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/notched-v-grooved-pulley-for-round-band</loc>
    <lastmod>2026-10-05T09:07:14-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/notched-v-grooved-pulley-for-round-band.png?v=1777503464</image:loc>
      <image:title>Notched V-Grooved Pulley for a Round Band: Brown Item 259</image:title>
      <image:caption>Notched V-grooved Pulley for Round Band diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/plain-pulley-for-flat-belt</loc>
    <lastmod>2026-10-04T08:59:39-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/plain-pulley-for-flat-belt.png?v=1777503467</image:loc>
      <image:title>Plain Flat-Belt Pulley: Declared Crown Geometry</image:title>
      <image:caption>Plain Pulley for Flat Belt diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/power-from-horizontal-to-two-vertical-shafts-via-pulleys-and-band</loc>
    <lastmod>2026-10-04T12:39:03-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/power-from-horizontal-to-two-vertical-shafts-via-pulleys-and-band.png?v=1777503470</image:loc>
      <image:title>Horizontal Shaft to Two Vertical Shafts: Ideal Belt-Speed Ledger</image:title>
      <image:caption>Power From Horizontal to Two Vertical Shafts via Pulleys and Band diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/pulley-system-with-cord-and-movable-pulleys-a</loc>
    <lastmod>2026-10-04T14:50:02-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/pulley-system-with-cord-and-movable-pulleys-a.png?v=1777503473</image:loc>
      <image:title>Movable-Pulley Cord System (a): Fixed 2:1 Reeving Ledger</image:title>
      <image:caption>Pulley System with Cord and Movable Pulleys (a) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/pulley-system-with-cord-and-movable-pulleys-b</loc>
    <lastmod>2026-10-04T14:52:38-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/pulley-system-with-cord-and-movable-pulleys-b.png?v=1777503477</image:loc>
      <image:title>Movable-Pulley Cord System (b): 2:1 Lift with Right-Angle Haul</image:title>
      <image:caption>Pulley System with Cord and Movable Pulleys (b) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/pulley-system-with-cord-and-movable-pulleys-c</loc>
    <lastmod>2026-10-04T14:56:31-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/pulley-system-with-cord-and-movable-pulleys-c.png?v=1777503480</image:loc>
      <image:title>Movable-Pulley Cord System (c): Standing-End and Haul-Line Ledger</image:title>
      <image:caption>Pulley System with Cord and Movable Pulleys (c) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/pulley-system-with-cord-and-movable-pulleys-d</loc>
    <lastmod>2026-10-04T14:59:14-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/pulley-system-with-cord-and-movable-pulleys-d.png?v=1777503483</image:loc>
      <image:title>Movable-Pulley Cord System (d): Fixed-Redirect 2:1 Ledger</image:title>
      <image:caption>Pulley System with Cord and Movable Pulleys (d) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/simple-lifting-pulley</loc>
    <lastmod>2026-10-07T11:21:35-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/simple-lifting-pulley.png?v=1777503486</image:loc>
      <image:title>Simple Lifting Pulley Mechanism: How It Works, Diagram, Parts, Formula and Uses Explained</image:title>
      <image:caption>Simple Lifting Pulley diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/spanish-barton-form-1</loc>
    <lastmod>2026-10-04T17:44:50-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/spanish-barton-form-1.png?v=1777503489</image:loc>
      <image:title>Spanish Barton (form 1) Mechanism Explained: 5:1 Compound Pulley Diagram, Parts and Uses</image:title>
      <image:caption>Spanish Barton (form 1) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/spanish-barton-form-2</loc>
    <lastmod>2026-10-04T17:44:51-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/spanish-barton-form-2.png?v=1777503492</image:loc>
      <image:title>Spanish Barton (form 2) Mechanism Explained: 5:1 Compound Pulley Parts, Formula &amp; Rigging Uses</image:title>
      <image:caption>Spanish Barton (form 2) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/sprocket-and-chain-drive</loc>
    <lastmod>2026-10-04T17:48:52-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/sprocket-and-chain-drive.png?v=1777503496</image:loc>
      <image:title>Sprocket and Chain Drive Mechanism Explained: How It Works, Parts, Diagram, Formula and Uses</image:title>
      <image:caption>Sprocket and Chain Drive diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/two-fixed-and-one-movable-pulley-combination</loc>
    <lastmod>2026-10-05T07:52:27-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/two-fixed-and-one-movable-pulley-combination.png?v=1777503499</image:loc>
      <image:title>Two Fixed and One Movable Pulley: Three-part Tackle Calculator</image:title>
      <image:caption>Two Fixed and One Movable Pulley Combination diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/two-speed-transmission-with-differential-motion</loc>
    <lastmod>2026-10-05T07:52:44-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/two-speed-transmission-with-differential-motion.png?v=1777503502</image:loc>
      <image:title>Differential Transmission: Signed Side-speed Comparison</image:title>
      <image:caption>Two-speed Transmission with Differential Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/two-speed-transmission-with-three-pulleys</loc>
    <lastmod>2026-10-05T07:52:46-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/two-speed-transmission-with-three-pulleys.png?v=1777503505</image:loc>
      <image:title>Three-pulley Two-speed Drive: Ideal Speed and Torque Ratios</image:title>
      <image:caption>Two-speed Transmission with Three Pulleys diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/vibratory-belt-motion-via-segment-lever</loc>
    <lastmod>2026-10-05T07:54:36-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/vibratory-belt-motion-via-segment-lever.png?v=1777503508</image:loc>
      <image:title>Vibratory Belt Motion: Segment-Lever Illustration and Harmonic Calculator</image:title>
      <image:caption>Vibratory Belt Motion via Segment Lever diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/white-s-pulleys</loc>
    <lastmod>2026-10-05T07:55:52-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/white-s-pulleys.png?v=1777503511</image:loc>
      <image:title>White&apos;s Pulleys Mechanism Explained: How a Single-Rope Stepped-Sheave Tackle Works</image:title>
      <image:caption>White&apos;s Pulleys diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/crank-substitute</loc>
    <lastmod>2026-10-04T20:29:01-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/crank-substitute.png?v=1777503514</image:loc>
      <image:title>Crank Substitute Mechanism: How the Planetary Gear Slider-Crank Works, Parts &amp; Uses</image:title>
      <image:caption>Crank Substitute diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/crank-general</loc>
    <lastmod>2026-10-04T20:25:16-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/crank-general.png?v=1777503517</image:loc>
      <image:title>Crank (general) Mechanism: How It Works, Slider-Crank Diagram, Parts and Real-World Uses</image:title>
      <image:caption>Crank (general) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/slider-crank-linkage</loc>
    <lastmod>2026-10-04T17:51:01-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/slider-crank-linkage.png?v=1777503520</image:loc>
      <image:title>Slider-crank Linkage Mechanism: How It Works, Diagram, Formula, Parts, and Real-World Uses</image:title>
      <image:caption>Slider-crank Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/beam-driven-crank-and-fly-wheel</loc>
    <lastmod>2026-09-28T22:34:01-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/beam-driven-crank-and-fly-wheel.png?v=1777503523</image:loc>
      <image:title>Beam-driven Crank and Fly-wheel Mechanism: How It Works, Parts, Diagram, and Uses Explained</image:title>
      <image:caption>Beam-driven Crank and Fly-wheel diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bell-crank-lever-with-slotted-disk-crank</loc>
    <lastmod>2026-10-02T08:20:41-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bell-crank-lever-with-slotted-disk-crank.png?v=1777503527</image:loc>
      <image:title>Bell-crank Lever with Slotted Disk Crank Mechanism: How It Works, Diagram, Parts and Uses</image:title>
      <image:caption>Bell-crank Lever with Slotted Disk Crank diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bell-crank-with-connecting-rod</loc>
    <lastmod>2026-09-28T23:08:17-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bell-crank-with-connecting-rod.png?v=1777503530</image:loc>
      <image:title>Bell-crank with Connecting Rod Mechanism: How It Works, Parts, Uses &amp; Calculator</image:title>
      <image:caption>Bell-crank with Connecting Rod diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/continuous-rotary-via-two-paired-link-cranks</loc>
    <lastmod>2026-10-04T20:09:07-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/continuous-rotary-via-two-paired-link-cranks.png?v=1777503532</image:loc>
      <image:title>Continuous Rotary via Two Paired Link Cranks: How the Mechanism Works, Parts &amp; Uses Explained</image:title>
      <image:caption>Continuous Rotary via Two Paired Link Cranks diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/crank-to-oscillating-rod-reciprocating</loc>
    <lastmod>2026-10-04T20:30:34-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/crank-to-oscillating-rod-reciprocating.png?v=1777503536</image:loc>
      <image:title>Crank to Oscillating Rod Reciprocating Mechanism: How It Works, Diagram, Formula &amp; Uses</image:title>
      <image:caption>Crank to Oscillating Rod Reciprocating diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/crank-with-treadle</loc>
    <lastmod>2026-10-04T20:30:38-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/crank-with-treadle.png?v=1777503539</image:loc>
      <image:title>Crank with Treadle Mechanism Explained: How a Foot Pedal Drives Rotary Motion, Parts, Diagram</image:title>
      <image:caption>Crank with Treadle diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/crank-disk-with-toothed-sector-and-rack</loc>
    <lastmod>2026-10-04T20:23:52-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/crank-disk-with-toothed-sector-and-rack.png?v=1777503542</image:loc>
      <image:title>Crank-disk with Toothed Sector and Rack: How the Mechanism Works, Parts, and Uses Explained</image:title>
      <image:caption>Crank-disk with Toothed Sector and Rack diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/double-rack-crank-substitute</loc>
    <lastmod>2026-10-04T22:05:19-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/double-rack-crank-substitute.png?v=1777503545</image:loc>
      <image:title>Double-rack Crank Substitute Mechanism: How It Works, Parts, Formula, and Industrial Uses Explained</image:title>
      <image:caption>Double-rack Crank Substitute diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/drag-link-mechanism-d-class</loc>
    <lastmod>2026-10-04T22:18:54-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/drag-link-mechanism-d-class.png?v=1777503548</image:loc>
      <image:title>Drag-link Mechanism (d-class): How It Works, Parts, Formula &amp; Quick-Return Uses Explained</image:title>
      <image:caption>Drag-link Mechanism (d-class) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/endless-groove-disk-and-vibrating-arm</loc>
    <lastmod>2026-10-04T23:14:09-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/endless-groove-disk-and-vibrating-arm.png?v=1777503551</image:loc>
      <image:title>Endless-groove Disk and Vibrating Arm Mechanism: How It Works, Parts, Diagram and Uses</image:title>
      <image:caption>Endless-groove Disk and Vibrating Arm diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/endless-spiral-cylinder-crank-substitute</loc>
    <lastmod>2026-10-04T23:15:15-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/endless-spiral-cylinder-crank-substitute.png?v=1777503555</image:loc>
      <image:title>Endless-spiral Cylinder Crank Substitute Mechanism: How It Works, Diagram, Formula &amp; Uses</image:title>
      <image:caption>Endless-spiral Cylinder Crank Substitute diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/engine-uncoupling-via-slotted-ring-form-1</loc>
    <lastmod>2026-10-04T23:17:00-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/engine-uncoupling-via-slotted-ring-form-1.png?v=1777503558</image:loc>
      <image:title>Engine Uncoupling via Slotted Ring (form 1): How the Mechanism Works, Parts &amp; Uses Explained</image:title>
      <image:caption>Engine Uncoupling via Slotted Ring (form 1) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/engine-uncoupling-via-slotted-ring-form-2</loc>
    <lastmod>2026-10-04T23:17:03-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/engine-uncoupling-via-slotted-ring-form-2.png?v=1777503561</image:loc>
      <image:title>Engine Uncoupling via Slotted Ring (form 2): How the Declutch Mechanism Works, Parts and Diagram</image:title>
      <image:caption>Engine Uncoupling via Slotted Ring (form 2) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/inverted-slider-crank</loc>
    <lastmod>2026-10-05T09:06:54-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/inverted-slider-crank.png?v=1777503564</image:loc>
      <image:title>Inverted Slider-Crank: Oscillating-Axis Swing Calculator | FIRGELLI</image:title>
      <image:caption>Inverted Slider-crank diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/modified-slotted-crank-with-link</loc>
    <lastmod>2026-10-05T08:18:45-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/modified-slotted-crank-with-link.png?v=1777503567</image:loc>
      <image:title>Crank-and-Slotted-Lever Quick Return: Geometry and Timing</image:title>
      <image:caption>Modified Slotted Crank with Link diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/reciprocating-rack-crank-substitute</loc>
    <lastmod>2026-10-05T00:35:38-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/reciprocating-rack-crank-substitute.png?v=1777503570</image:loc>
      <image:title>Reciprocating-rack Crank Substitute Mechanism Explained: How It Works, Parts, Formula and Uses</image:title>
      <image:caption>Reciprocating-rack Crank Substitute diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/single-revolution-per-stroke</loc>
    <lastmod>2026-10-04T17:50:45-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/single-revolution-per-stroke.png?v=1777503574</image:loc>
      <image:title>Single Revolution Per Stroke Mechanism: How Punch Press Clutches Work, Parts, Formula, and Uses</image:title>
      <image:caption>Single Revolution Per Stroke diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/slotted-connecting-rod-with-rest-at-end</loc>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/slotted-connecting-rod-with-rest-at-end.png?v=1777503577</image:loc>
      <image:title>Slotted Connecting Rod with Rest at End: Mechanism, Diagram, Formula, and Uses Explained</image:title>
      <image:caption>Slotted Connecting Rod with Rest at End diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/slotted-cross-head-with-sliding-journal-box</loc>
    <lastmod>2026-10-07T13:46:08-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
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      <image:title>Slotted Cross-head with Sliding Journal Box: How It Works, Diagram, Parts, Formula and Uses Explained</image:title>
      <image:caption>Slotted Cross-head with Sliding Journal Box diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/slotted-main-crank-with-elliptical-pin-orbit</loc>
    <lastmod>2026-10-04T18:39:36-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
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      <image:title>Slotted Main Crank with Elliptical Pin Orbit Mechanism: How It Works, Parts, Diagram and Uses</image:title>
      <image:caption>Slotted Main Crank with Elliptical Pin Orbit diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/spring-return-treadle-to-pulley</loc>
    <lastmod>2026-10-04T17:48:50-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/spring-return-treadle-to-pulley.png?v=1777503586</image:loc>
      <image:title>Spring-return Treadle to Pulley Mechanism: How It Works, Parts, Diagram, and Uses Explained</image:title>
      <image:caption>Spring-return Treadle to Pulley diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/swinging-block-linkage</loc>
    <lastmod>2026-10-05T07:49:28-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/swinging-block-linkage.png?v=1777503590</image:loc>
      <image:title>Swinging-block Linkage: Ideal Angle-ratio Calculator</image:title>
      <image:caption>Swinging-block Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/treadle-to-disk-via-connecting-rod</loc>
    <lastmod>2026-10-05T07:51:50-07:00</lastmod>
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    <image:image>
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      <image:title>Treadle to Disk via Connecting Rod: Ideal Geometry Comparison</image:title>
      <image:caption>Treadle to Disk via Connecting Rod diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/treadle-with-cord-and-pulley</loc>
    <lastmod>2026-10-05T07:51:51-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
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      <image:title>Treadle with Cord and Pulley: Ideal Diameter Comparison</image:title>
      <image:caption>Treadle with Cord and Pulley diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/two-crank-disks-variable-alternating-traverse</loc>
    <lastmod>2026-10-05T07:52:23-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/two-crank-disks-variable-alternating-traverse.png?v=1777503600</image:loc>
      <image:title>Two Crank-disks Traverse: Brown Movement 122 and Vector Comparison</image:title>
      <image:caption>Two Crank-disks Variable Alternating Traverse diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/two-shaft-crank-with-slot-for-varying-velocity</loc>
    <lastmod>2026-10-05T07:52:39-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/two-shaft-crank-with-slot-for-varying-velocity.png?v=1777503603</image:loc>
      <image:title>Two-shaft Slotted Crank: Ideal Offset and Speed Calculator</image:title>
      <image:caption>Two-shaft Crank with Slot for Varying Velocity diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/variable-crank-spiral-and-radial-slots</loc>
    <lastmod>2026-10-05T07:53:37-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/variable-crank-spiral-and-radial-slots.png?v=1777503606</image:loc>
      <image:title>Spiral and Radial Slot Crank: Adjustable Throw and Stroke</image:title>
      <image:caption>Variable Crank (spiral and Radial Slots) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/yoke-bar-reciprocator-from-disk-crank</loc>
    <lastmod>2026-10-05T07:56:53-07:00</lastmod>
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    <image:image>
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      <image:title>Yoke-bar Reciprocator From Disk Crank: How It Works, Diagram, Formula and Uses Explained</image:title>
      <image:caption>Yoke-bar Reciprocator From Disk Crank diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/acetylene-burner</loc>
    <lastmod>2026-10-04T22:51:42-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:title>Acetylene Burner Mechanism: How It Works, Parts, Flame Diagram, and Heat Output Explained</image:title>
      <image:caption>Acetylene Burner diagram</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-04T22:54:42-07:00</lastmod>
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      <image:title>Acetylene Gas Generator Mechanism: How It Works, Parts, Diagram, and Calcium Carbide Reaction Explained</image:title>
      <image:caption>Acetylene Gas Generator diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/acetylene-generator-and-gas-holder</loc>
    <lastmod>2026-10-04T22:57:54-07:00</lastmod>
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    <image:image>
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      <image:title>Acetylene Generator and Gas Holder: How It Works, Diagram, Parts, and Industrial Uses Explained</image:title>
      <image:caption>Acetylene Generator and Gas Holder diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/automatic-gasoline-and-mantle-lamp</loc>
    <lastmod>2026-10-05T09:16:01-07:00</lastmod>
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      <image:title>Automatic Gasoline and Mantle Lamp Mechanism: How It Works, Parts, Diagram and Uses Explained</image:title>
      <image:caption>Automatic Gasoline and Mantle Lamp diagram</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-04T21:33:57-07:00</lastmod>
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      <image:title>Centre Guide Gas Holder Mechanism Explained: How It Works, Parts, Diagram and Uses</image:title>
      <image:caption>Centre Guide Gas Holder diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/centre-valve-for-a-gas-house</loc>
    <lastmod>2026-10-04T20:59:39-07:00</lastmod>
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    <image:image>
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      <image:title>Centre Valve for a Gas House: Mechanism, Diagram, Parts, Formula and Uses Explained</image:title>
      <image:caption>Centre Valve for a Gas House diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cowles-electric-furnace</loc>
    <lastmod>2026-10-04T20:21:09-07:00</lastmod>
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      <image:title>Cowles Electric Furnace Mechanism Explained: Diagram, Parts, Operation and Carbothermic Smelting Uses</image:title>
      <image:caption>Cowles Electric Furnace diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/crude-petroleum-burners</loc>
    <lastmod>2026-10-04T20:40:05-07:00</lastmod>
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      <image:title>Crude Petroleum Burners Mechanism: How Steam Atomizing Oil Burners Work, Parts and Uses</image:title>
      <image:caption>Crude Petroleum Burners diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/dry-gas-meter</loc>
    <lastmod>2026-10-04T22:30:57-07:00</lastmod>
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      <image:title>Dry Gas Meter Mechanism: How It Works, Diaphragm Parts, Tangent Linkage, and Uses Explained</image:title>
      <image:caption>Dry Gas Meter diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/electric-furnace</loc>
    <lastmod>2026-10-04T22:53:11-07:00</lastmod>
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      <image:title>Electric Furnace Mechanism Explained: How It Works, Parts, Diagram, and Power Sizing Calculator</image:title>
      <image:caption>Electric Furnace diagram</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-04T22:54:08-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/electric-gas-lighter.png?v=1777503652</image:loc>
      <image:title>Electric Gas Lighter: Piezo Striker Animation and Pulse Calculator</image:title>
      <image:caption>Electric Gas Lighter diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/electric-heater</loc>
    <lastmod>2026-10-04T22:55:22-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/electric-heater.png?v=1777503655</image:loc>
      <image:title>Electric Heater Mechanism Explained: Joule Heating, Parts, Uses, Formula and Worked Example</image:title>
      <image:caption>Electric Heater diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/electric-thermostat</loc>
    <lastmod>2026-10-04T23:04:02-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/electric-thermostat.png?v=1777503658</image:loc>
      <image:title>Electric Thermostat: Bimetal Strip Animation and Deflection Calculator</image:title>
      <image:caption>Electric Thermostat diagram</image:caption>
    </image:image>
  </url>
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    <lastmod>2026-10-06T17:36:05-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/fire-extinguisher.png?v=1777503661</image:loc>
      <image:title>Fire Extinguisher: Valve Animation and Charge-Mass Calculator</image:title>
      <image:caption>Fire Extinguisher diagram</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-05T20:23:58-07:00</lastmod>
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      <image:title>Fuel Gas Burner: Relative Orifice-flow Calculator | FIRGELLI</image:title>
      <image:caption>Fuel Gas Burner diagram</image:caption>
    </image:image>
  </url>
  <url>
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      <image:title>Garbage Furnace: Drying Hearth and Flow Calculator</image:title>
      <image:caption>Garbage Furnace — schematic of the mechanism.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/gas-crucible-furnace</loc>
    <lastmod>2026-10-05T21:35:53-07:00</lastmod>
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      <image:title>Gas Crucible Furnace: Heat-Input Calculator | FIRGELLI</image:title>
      <image:caption>Gas Crucible Furnace diagram</image:caption>
    </image:image>
  </url>
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    <lastmod>2026-10-05T21:42:08-07:00</lastmod>
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      <image:title>Gas Furnace: Air Injector and Heat-Balance Calculator</image:title>
      <image:caption>Gas Furnace — schematic of the mechanism.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/gas-pressure-regulator</loc>
    <lastmod>2026-10-05T21:49:12-07:00</lastmod>
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      <image:title>Gas Pressure Regulator: Droop Illustration | FIRGELLI</image:title>
      <image:caption>Gas Pressure Regulator diagram</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-05T21:58:17-07:00</lastmod>
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      <image:title>Flame-Heated Incubator: Enclosure Heat-Loss Calculator | FIRGELLI</image:title>
      <image:caption>Gas-heated Incubator diagram</image:caption>
    </image:image>
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    <lastmod>2026-10-06T03:15:02-07:00</lastmod>
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      <image:title>Hot-water House Boiler: Heat-Rate Arithmetic and AFUE Limits | FIRGELLI</image:title>
      <image:caption>Hot-water House Boiler diagram</image:caption>
    </image:image>
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  <url>
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      <image:title>Lantern Bellows Dry Gas Meter: Animation and Volume Calculator</image:title>
      <image:caption>Lantern Bellows Dry Gas Meter — schematic of the mechanism.</image:caption>
    </image:image>
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      <image:title>Oil-Burning Melting Furnace: Hiscox Item 701</image:title>
      <image:caption>Oil Burning Melting Furnace diagram</image:caption>
    </image:image>
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    <lastmod>2026-10-05T09:30:41-07:00</lastmod>
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      <image:title>Open-Top Electric Furnace: Ideal Aperture Radiation Calculator</image:title>
      <image:caption>Open-top Electric Furnace diagram</image:caption>
    </image:image>
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      <image:title>Ore Roasting Furnace: Multiple-Hearth Rabble Principle</image:title>
      <image:caption>Ore Roasting Furnace diagram</image:caption>
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  <url>
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    <lastmod>2026-10-04T07:16:13-07:00</lastmod>
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      <image:title>Petroleum Burner: Fuel-Rate Energy Accounting</image:title>
      <image:caption>Petroleum Burner diagram</image:caption>
    </image:image>
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      <image:title>Petroleum Furnace: Declared Air-Flow Accounting</image:title>
      <image:caption>Petroleum Furnace diagram</image:caption>
    </image:image>
  </url>
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    <loc>https://www.firgelliauto.com/blogs/mechanisms/siemens-electric-gas-furnace</loc>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/siemens-electric-gas-furnace.png?v=1777503707</image:loc>
      <image:title>Siemens Electric Gas Furnace Mechanism: How the LMV Burner Controller and SQM Servos Work</image:title>
      <image:caption>Siemens Electric Gas Furnace diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/under-feed-heating-furnace</loc>
    <lastmod>2026-10-05T07:52:54-07:00</lastmod>
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    <image:image>
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      <image:title>Underfeed Stoker: Ideal Screw-volume and Heat Comparison</image:title>
      <image:caption>Under-feed Heating Furnace diagram</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-05T07:55:43-07:00</lastmod>
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      <image:title>Wet Gas Meter Mechanism: How the Rotating Drum Measures Gas Volume, Parts, Diagram and Uses Explained</image:title>
      <image:caption>Wet Gas Meter diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cylindrical-cam</loc>
    <lastmod>2026-10-04T21:01:25-07:00</lastmod>
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      <image:title>Cylindrical Cam Mechanism Explained: How a Drum Cam Works, Parts, Formula and Uses</image:title>
      <image:caption>Cylindrical Cam diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/triangular-eccentric</loc>
    <lastmod>2026-10-05T07:51:56-07:00</lastmod>
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      <image:title>Triangular Eccentric: Threefold Form and Height Comparison</image:title>
      <image:caption>Triangular Eccentric diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/beveled-disk-cam-to-rod</loc>
    <lastmod>2026-10-04T20:24:14-07:00</lastmod>
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      <image:title>Beveled Disk Cam to Rod Mechanism: How It Works, Diagram, Formula, and Uses Explained</image:title>
      <image:caption>Beveled Disk Cam to Rod diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cam-between-yoke-friction-rollers-valve</loc>
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    <image:image>
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      <image:title>Cam Between Yoke Friction-rollers (valve) Mechanism Explained: How It Works, Parts, Diagram &amp; Uses</image:title>
      <image:caption>Cam Between Yoke Friction-rollers (valve) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cam-producing-variable-rectilinear-motion</loc>
    <lastmod>2026-10-04T20:46:29-07:00</lastmod>
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    <image:image>
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      <image:title>Cam Producing Variable Rectilinear Motion Mechanism Explained: How It Works, Diagram, Parts &amp; Uses</image:title>
      <image:caption>Cam Producing Variable Rectilinear Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cam-wheel-with-profile-rim</loc>
    <lastmod>2026-10-04T22:19:50-07:00</lastmod>
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    <image:image>
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      <image:title>Cam-wheel with Profile Rim Mechanism: How It Works, Parts, Diagram and Industrial Uses Explained</image:title>
      <image:caption>Cam-wheel with Profile Rim diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cam-wiper-alternating-rectilinear-stamper</loc>
    <lastmod>2026-10-04T22:21:13-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cam-wiper-alternating-rectilinear-stamper.png?v=1777503744</image:loc>
      <image:title>Cam-wiper Alternating Rectilinear (stamper) Mechanism: How It Works, Diagram, Parts and Uses</image:title>
      <image:caption>Cam-wiper Alternating Rectilinear (stamper) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cams-of-varying-throw-expansive-valve</loc>
    <lastmod>2026-10-04T20:47:11-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
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      <image:title>Cams of Varying Throw (expansive Valve) Mechanism Explained: Parts, Diagram, Formula &amp; Uses</image:title>
      <image:caption>Cams of Varying Throw (expansive Valve) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cams-on-shaft-to-alternating-rod-motion</loc>
    <lastmod>2026-10-04T20:47:15-07:00</lastmod>
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    <image:image>
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      <image:title>Cams on Shaft to Alternating Rod Motion: How It Works, Diagram, Parts, and Uses Explained</image:title>
      <image:caption>Cams on Shaft to Alternating Rod Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-06T01:12:31-07:00</lastmod>
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      <image:title>Uniform-Traverse Heart Cam: Ideal Motion Calculator | FIRGELLI</image:title>
      <image:caption>Heart-cam (uniform Traversing) diagram</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-04T19:54:35-07:00</lastmod>
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      <image:title>Conjugate Cam Mechanism: How It Works, Diagram, Formula and Worked Example</image:title>
      <image:caption>Conjugate Cam diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/continuous-rotary-cam-to-alternating-bar</loc>
    <lastmod>2026-10-04T20:08:53-07:00</lastmod>
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    <image:image>
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      <image:title>Continuous Rotary Cam to Alternating Bar Mechanism Explained: How It Works, Parts, Diagram, Uses</image:title>
      <image:caption>Continuous Rotary Cam to Alternating Bar diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/disk-cam-with-oscillating-follower</loc>
    <lastmod>2026-10-04T21:43:50-07:00</lastmod>
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      <image:title>Disk Cam with Oscillating Follower: How It Works, Parts, Formula, and Industrial Uses Explained</image:title>
      <image:caption>Disk Cam with Oscillating Follower diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/disk-cam-with-translating-follower</loc>
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      <image:title>Disk Cam with Translating Follower Mechanism: How It Works, Diagram, Formula and Uses</image:title>
      <image:caption>Disk Cam with Translating Follower diagram</image:caption>
    </image:image>
  </url>
  <url>
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      <image:title>Eccentric Cone Change-velocity (form 1) Mechanism: How It Works, Parts, Formula and Diagram</image:title>
      <image:caption>Eccentric Cone Change-velocity (form 1) diagram</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-10-04T22:37:02-07:00</lastmod>
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    <image:image>
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      <image:title>Eccentric Cone Change-velocity (form 2) Mechanism: How It Works, Parts, Diagram &amp; Uses Explained</image:title>
      <image:caption>Eccentric Cone Change-velocity (form 2) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/expansion-eccentric-steam-engine</loc>
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      <image:title>Meyer Expansion Valve: Cutoff Kinematics Calculator | FIRGELLI</image:title>
      <image:caption>Expansion Eccentric (steam Engine) diagram</image:caption>
    </image:image>
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      <image:title>Face Cam: Cycloidal Motion and Follower-Speed Calculator | FIRGELLI</image:title>
      <image:caption>Face Cam diagram</image:caption>
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  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/globoid-cam</loc>
    <lastmod>2026-10-06T09:16:06-07:00</lastmod>
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      <image:title>Globoid Cam: Roller-Gear Animation and Indexing Calculator</image:title>
      <image:caption>Globoid Cam — schematic of the mechanism.</image:caption>
    </image:image>
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  <url>
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      <image:title>Grooved Heart-Cam: Average Traverse Calculator | FIRGELLI</image:title>
      <image:caption>Grooved Heart-cam diagram</image:caption>
    </image:image>
  </url>
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    <lastmod>2026-10-06T18:33:32-07:00</lastmod>
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      <image:title>Inverse Cam: Illustration and Circular Arc-to-Angle Calculator | FIRGELLI</image:title>
      <image:caption>Inverse Cam diagram</image:caption>
    </image:image>
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  <url>
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      <image:title>Modified Eccentric with Elongated Yoke: Straight-Line Motion</image:title>
      <image:caption>Modified Eccentric with Elongated Yoke diagram</image:caption>
    </image:image>
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      <image:title>Triangular Eccentric: Equal-Arc Geometry</image:title>
      <image:caption>Triangular eccentric diagram</image:caption>
    </image:image>
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      <image:title>Oblique-Disk Reciprocator: Brown Item 95</image:title>
      <image:caption>Oblique-disk Reciprocating Rectilinear diagram</image:caption>
    </image:image>
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      <image:caption>Reciprocating Pump From Rotary via Cam diagram</image:caption>
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      <image:title>Self-reversing Motion Contrivance: How It Works, Diagram, Parts, and Traverse Speed Formula</image:title>
      <image:caption>Self-reversing Motion Contrivance diagram</image:caption>
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      <image:title>Spiral Guide on Disk (drilling Feed) Mechanism: How the Archimedean Face Cam Drives Quill Feed</image:title>
      <image:caption>Spiral Guide on Disk (drilling Feed) diagram</image:caption>
    </image:image>
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      <image:title>Three-wiper Frame Reciprocator: Shaft Geometry</image:title>
      <image:caption>Three-wiper Rectangular Frame Reciprocator diagram</image:caption>
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      <image:title>Waved-wheel Cam: Ideal Follower Event-rate Calculator</image:title>
      <image:caption>Waved-wheel Cam to Upright Bar diagram</image:caption>
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      <image:caption>Wedge Cam diagram</image:caption>
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      <image:caption>Block and Tackle diagram</image:caption>
    </image:image>
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      <image:title>Chinese Windlass Mechanism Explained: How It Works, Diagram, Formula, Parts and Uses</image:title>
      <image:caption>Chinese Windlass diagram</image:caption>
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      <image:title>Chinese Shaft Derrick Mechanism Explained: How It Works, Parts, Diagram and Mechanical Advantage</image:title>
      <image:caption>Chinese Shaft Derrick diagram</image:caption>
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      <image:caption>Compound Weight Motor diagram</image:caption>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/guy-rope-clip-and-thimble.png?v=1777503833</image:loc>
      <image:title>Wire Rope Clip and Thimble: Parts and Rating Limits | FIRGELLI</image:title>
      <image:caption>Guy Rope Clip and Thimble diagram</image:caption>
    </image:image>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/rope-end</loc>
    <lastmod>2026-10-04T17:42:31-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/rope-end.png?v=1777503836</image:loc>
      <image:title>Rope End Mechanism Explained: How Whipping, Splices and Heat-Seal Terminations Work</image:title>
      <image:caption>Rope End diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/inclined-plane</loc>
    <lastmod>2026-10-05T08:34:28-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/inclined-plane.png?v=1777503839</image:loc>
      <image:title>Inclined Plane: Sliding Force and Work Calculator | FIRGELLI</image:title>
      <image:caption>Inclined Plane diagram</image:caption>
    </image:image>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lever-and-ratchet</loc>
    <lastmod>2026-10-04T21:10:37-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/lever-and-ratchet.png?v=1777503842</image:loc>
      <image:title>Lever and Ratchet: Ideal Force Ratio and One-Tooth Indexing</image:title>
      <image:caption>Lever and Ratchet diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lever-paradox</loc>
    <lastmod>2026-10-04T23:32:13-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/lever-paradox.png?v=1777503845</image:loc>
      <image:title>Lever Paradox: Hiscox Item 10 Balanced-Linkage Viewer</image:title>
      <image:caption>Lever Paradox diagram</image:caption>
    </image:image>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lever-safety-trip</loc>
    <lastmod>2026-10-04T23:32:16-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/lever-safety-trip.png?v=1777503848</image:loc>
      <image:title>Lever Safety Trip: Hiscox Forms 48a and 48b Viewer</image:title>
      <image:caption>Lever Safety Trip diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lever-sector</loc>
    <lastmod>2026-10-04T23:33:27-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/lever-sector.png?v=1777503852</image:loc>
      <image:title>Lever Sector: Circular Sweep Animation and Arc-Length Calculator</image:title>
      <image:caption>Lever Sector diagram</image:caption>
    </image:image>
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  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lever-windlass</loc>
    <lastmod>2026-10-04T23:34:36-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/lever-windlass.png?v=1777503855</image:loc>
      <image:title>Lever Windlass Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses</image:title>
      <image:caption>Lever Windlass diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lifting-jack</loc>
    <lastmod>2026-10-04T23:42:24-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/lifting-jack.png?v=1777503858</image:loc>
      <image:title>Lifting Jack: Rotating-Screw Animation and Work-Ratio Calculator</image:title>
      <image:caption>Lifting Jack diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/rope-grip-hook</loc>
    <lastmod>2026-10-04T17:42:32-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/rope-grip-hook.png?v=1777503862</image:loc>
      <image:title>Rope Grip Hook Mechanism Explained: How It Works, Parts, Wedge Friction Formula and Diagram</image:title>
      <image:caption>Rope Grip Hook diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/rope-twist-lever</loc>
    <lastmod>2026-10-04T17:42:38-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/rope-twist-lever.png?v=1777503865</image:loc>
      <image:title>Rope Twist Lever (Spanish Windlass) Mechanism: How It Works, Diagram, Formula, and Uses</image:title>
      <image:caption>Rope Twist Lever diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/spanish-windlass</loc>
    <lastmod>2026-10-04T17:44:52-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/spanish-windlass.png?v=1777503868</image:loc>
      <image:title>Spanish Windlass Mechanism: How It Works, Diagram, Formula, and Rigging Uses Explained</image:title>
      <image:caption>Spanish Windlass diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/the-resolution-of-suspension</loc>
    <lastmod>2026-10-05T07:50:08-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/the-resolution-of-suspension.png?v=1777503874</image:loc>
      <image:title>Resolution of Suspension: Ideal Two-leg Tension Calculator</image:title>
      <image:caption>The Resolution of Suspension diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/the-wedge</loc>
    <lastmod>2026-10-05T07:50:10-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/the-wedge.png?v=1777503878</image:loc>
      <image:title>The Wedge: Ideal Geometry and Force-ratio Calculator</image:title>
      <image:caption>The Wedge diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bar-clamp</loc>
    <lastmod>2026-10-02T08:20:36-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bar-clamp.png?v=1777503881</image:loc>
      <image:title>Bar Clamp Mechanism Explained: How It Works, Parts, Clamping Force Formula and Uses</image:title>
      <image:caption>Bar Clamp diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bench-clamp-form</loc>
    <lastmod>2026-10-04T21:50:09-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bench-clamp-form.png?v=1777503884</image:loc>
      <image:title>Bench Clamp (form) Mechanism: How It Works, Diagram, Formula &amp; Clamping Force Calculator</image:title>
      <image:caption>Bench Clamp (form) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/c-clamp</loc>
    <lastmod>2026-10-04T22:10:00-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/c-clamp.png?v=1777503887</image:loc>
      <image:title>C-clamp Mechanism Explained: How It Works, Parts, Clamping Force Formula &amp; Uses</image:title>
      <image:caption>C-clamp diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cam-clamp</loc>
    <lastmod>2026-10-04T20:06:56-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cam-clamp.png?v=1777503891</image:loc>
      <image:title>Cam Clamp Mechanism Explained: How It Works, Diagram, Formula, and Real-World Uses</image:title>
      <image:caption>Cam Clamp diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cam-latch</loc>
    <lastmod>2026-10-04T22:15:31-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cam-latch.png?v=1777503894</image:loc>
      <image:title>Cam Latch Mechanism: How It Works, Diagram, Parts, Formula, and Uses Explained</image:title>
      <image:caption>Cam Latch diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/collet-chuck</loc>
    <lastmod>2026-10-04T21:39:45-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/collet-chuck.png?v=1777503897</image:loc>
      <image:title>Collet Chuck Mechanism Explained: How It Works, Parts, Diagram, Formula and Calculator</image:title>
      <image:caption>Collet Chuck diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/compression-latch</loc>
    <lastmod>2026-10-04T19:50:26-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/compression-latch.png?v=1777503900</image:loc>
      <image:title>Compression Latch Mechanism: How It Works, Cam Diagram, Gasket Formula &amp; Calculator</image:title>
      <image:caption>Compression Latch diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/de-sta-co-toggle-clamp</loc>
    <lastmod>2026-10-04T21:08:13-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/de-sta-co-toggle-clamp.png?v=1777503903</image:loc>
      <image:title>De-sta-co Toggle Clamp Mechanism: How the Over-Centre Linkage Works, Parts and Uses Explained</image:title>
      <image:caption>De-sta-co Toggle Clamp diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/draw-latch</loc>
    <lastmod>2026-10-04T22:22:36-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/draw-latch.png?v=1777503906</image:loc>
      <image:title>Draw Latch Mechanism Explained: How It Works, Parts, Over-Center Geometry &amp; Clamp Force Formula</image:title>
      <image:caption>Draw Latch diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/expanding-pipe-stopper</loc>
    <lastmod>2026-10-04T23:31:58-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/expanding-pipe-stopper.png?v=1777503910</image:loc>
      <image:title>Expanding Pipe Stopper: Seal Geometry and Pressure Thrust | FIRGELLI</image:title>
      <image:caption>Expanding Pipe Stopper diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/four-jaw-independent-chuck</loc>
    <lastmod>2026-10-05T17:31:17-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/four-jaw-independent-chuck.png?v=1777503913</image:loc>
      <image:title>Four-Jaw Independent Chuck: TIR and Ideal Correction | FIRGELLI</image:title>
      <image:caption>Four-jaw Independent Chuck diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/knee-action-toggle-clamp</loc>
    <lastmod>2026-10-06T04:03:03-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/knee-action-toggle-clamp-mechanism.png?v=1791284583</image:loc>
      <image:title>Knee-action Toggle Clamp: Over-centre Motion and Force Calculator</image:title>
      <image:caption>Knee-action Toggle Clamp — schematic of the mechanism.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lifting-tongs</loc>
    <lastmod>2026-10-04T23:42:27-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/lifting-tongs.png?v=1777503920</image:loc>
      <image:title>Lifting Tongs: Cross-Jaw Linkage Animation and Geometry Calculator</image:title>
      <image:caption>Lifting Tongs diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/mortise-lock</loc>
    <lastmod>2026-10-05T08:28:21-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/mortise-lock.png?v=1777503923</image:loc>
      <image:title>Mortise Lock: Mechanism and Case Fit Calculator</image:title>
      <image:caption>Mortise Lock diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/quick-release-skewer</loc>
    <lastmod>2026-10-04T16:15:11-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/quick-release-skewer.png?v=1777503929</image:loc>
      <image:title>Quick-Release Skewer: Ideal Eccentric-Cam Geometry</image:title>
      <image:caption>Quick-release Skewer diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/sash-lock</loc>
    <lastmod>2026-10-04T17:46:44-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/sash-lock.png?v=1777503932</image:loc>
      <image:title>Sash Lock Mechanism Explained: How Cam-Action Window Latches Work, Parts &amp; Diagram</image:title>
      <image:caption>Sash Lock diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/slam-latch</loc>
    <lastmod>2026-10-07T12:48:25-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/slam-latch.png?v=1777503935</image:loc>
      <image:title>Slam Latch: Mechanism, How It Works, Diagrams, Videos, Detailed Explanation</image:title>
      <image:caption>Slam Latch diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/three-jaw-chuck</loc>
    <lastmod>2026-10-05T07:50:24-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/three-jaw-chuck.png?v=1777503938</image:loc>
      <image:title>Three-jaw Scroll Chuck: Ideal Torque and Radial-load Model</image:title>
      <image:caption>Three-jaw Chuck diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/toggle-latch</loc>
    <lastmod>2026-10-05T07:51:00-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/toggle-latch.png?v=1777503941</image:loc>
      <image:title>Toggle Latch: Over-center Arrangement and Elastic Comparison</image:title>
      <image:caption>Toggle Latch diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/two-segment-jaw-gripper</loc>
    <lastmod>2026-10-05T07:52:38-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/two-segment-jaw-gripper.png?v=1777503945</image:loc>
      <image:title>Two-finger Parallel Gripper: Catalog Reference-force Comparison</image:title>
      <image:caption>Two-segment Jaw Gripper diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/vise-grip-pliers</loc>
    <lastmod>2026-10-05T07:54:42-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/vise-grip-pliers.png?v=1777503948</image:loc>
      <image:title>Vise Grip Pliers: Toggle Animation and Ideal Force Calculator</image:title>
      <image:caption>Vise Grip Pliers diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/anti-friction-roller-bearing</loc>
    <lastmod>2026-10-05T00:42:20-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/anti-friction-roller-bearing.png?v=1777503955</image:loc>
      <image:title>Anti-friction Roller Bearing: Animation, Parts and Friction Comparison</image:title>
      <image:caption>Anti-friction Roller Bearing diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bayonet-joint</loc>
    <lastmod>2026-10-02T08:20:37-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bayonet-joint.png?v=1777503958</image:loc>
      <image:title>Bayonet Joint Mechanism: How It Works, Parts, L-Slot Geometry, and Uses Explained</image:title>
      <image:caption>Bayonet Joint diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/curvic-coupling</loc>
    <lastmod>2026-10-04T20:49:29-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/curvic-coupling.png?v=1777503961</image:loc>
      <image:title>Curvic Coupling Mechanism: How Self-Centering Face Teeth Work, Parts, Formula and Uses</image:title>
      <image:caption>Curvic Coupling diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/double-hooke-joint-constant-velocity</loc>
    <lastmod>2026-10-04T21:59:46-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/double-hooke-joint-constant-velocity.png?v=1777503964</image:loc>
      <image:title>Double Hooke Joint (constant Velocity) Mechanism: How It Works, Diagram, Parts, Uses &amp; Calculator</image:title>
      <image:caption>Double Hooke Joint (constant Velocity) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/double-spherical-socket</loc>
    <lastmod>2026-10-04T22:10:06-07:00</lastmod>
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      <image:title>Double Spherical Socket Mechanism: How It Works, Diagram, Parts, Uses &amp; Formula Explained</image:title>
      <image:caption>Double Spherical Socket diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/hirth-joint</loc>
    <lastmod>2026-10-06T00:54:10-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/hirth-joint.png?v=1777503971</image:loc>
      <image:title>Hirth Joint: Facing Serrations and Ideal Force Calculator | FIRGELLI</image:title>
      <image:caption>Hirth Joint diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/linked-hinges</loc>
    <lastmod>2026-10-04T23:51:39-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/linked-hinges.png?v=1777503974</image:loc>
      <image:title>Linked Hinges Mechanism: How Coupled Hinges Work, Diagram, Parts, Formula and Uses Explained</image:title>
      <image:caption>Linked Hinges diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/magnetic-coupling</loc>
    <lastmod>2026-10-05T00:06:26-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/magnetic-coupling.png?v=1777503977</image:loc>
      <image:title>Magnetic Coupling: Containment Shell and Power–Torque Calculator</image:title>
      <image:caption>Magnetic Coupling diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/rzeppa-cv-joint</loc>
    <lastmod>2026-10-04T23:24:36-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/rzeppa-cv-joint.png?v=1777503981</image:loc>
      <image:title>Rzeppa CV Joint: Six-Ball Mechanism, Animation and Geometry Calculator</image:title>
      <image:caption>Rzeppa CV Joint diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/thompson-coupling-cv</loc>
    <lastmod>2026-10-05T07:50:15-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/thompson-coupling-cv.png?v=1777503984</image:loc>
      <image:title>Thompson Coupling: Ideal Constant-velocity Comparison</image:title>
      <image:caption>Thompson Coupling (CV) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/tripod-joint</loc>
    <lastmod>2026-10-05T07:52:01-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/tripod-joint.png?v=1777503987</image:loc>
      <image:title>Tripod CV Joint: Plunge Motion and Ideal Force Comparison</image:title>
      <image:caption>Tripod Joint diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/union-coupling</loc>
    <lastmod>2026-10-05T07:53:02-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/union-coupling.png?v=1777503990</image:loc>
      <image:title>Union Coupling: Bore-area and Wrench-force Comparison</image:title>
      <image:caption>Union Coupling diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/weiss-cv-joint</loc>
    <lastmod>2026-10-05T07:55:39-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/weiss-cv-joint.png?v=1777503993</image:loc>
      <image:title>Weiss CV Joint Mechanism Explained: How It Works, Parts, Geometry, and Uses on Steered Drive Axles</image:title>
      <image:caption>Weiss CV Joint diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/differential-screw-compound-pitch</loc>
    <lastmod>2026-10-04T21:27:31-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/differential-screw-compound-pitch.png?v=1777503997</image:loc>
      <image:title>Differential Screw (compound Pitch) Mechanism: How It Works, Diagram, Formula &amp; Uses Explained</image:title>
      <image:caption>Differential Screw (compound Pitch) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/archimedes-screw</loc>
    <lastmod>2026-10-05T08:39:15-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/archimedes-screw.png?v=1777504000</image:loc>
      <image:title>Archimedes&apos; Screw Mechanism: How It Works, Parts, Formula, Diagram and Calculator</image:title>
      <image:caption>Archimedes&apos; Screw diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/common-screw-bolt-and-nut</loc>
    <lastmod>2026-10-04T21:38:27-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/common-screw-bolt-and-nut.png?v=1777504003</image:loc>
      <image:title>Common Screw Bolt and Nut: Thread Pitch, Axial Travel and Helix Angle</image:title>
      <image:caption>Common Screw Bolt and Nut diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/evolution-of-a-wood-screw</loc>
    <lastmod>2026-10-04T23:30:02-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/evolution-of-a-wood-screw.png?v=1777504006</image:loc>
      <image:title>Wood Screw: Pitch, Advance and Ideal Work Calculator | FIRGELLI</image:title>
      <image:caption>Evolution of a Wood Screw diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/grooved-cam-reciprocating-form-1</loc>
    <lastmod>2026-10-06T00:32:46-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/grooved-cam-reciprocating-form-1.png?v=1777504009</image:loc>
      <image:title>Grooved Barrel Cam: Reciprocating Timing Calculator | FIRGELLI</image:title>
      <image:caption>Grooved Cam Reciprocating (form 1) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/grooved-cam-reciprocating-form-2</loc>
    <lastmod>2026-10-06T00:35:45-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/grooved-cam-reciprocating-form-2.png?v=1777504012</image:loc>
      <image:title>Reversing Grooved Drum: Helix Lead Calculator | FIRGELLI</image:title>
      <image:caption>Grooved Cam Reciprocating (form 2) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/micrometer-screw-compound-thread</loc>
    <lastmod>2026-10-05T00:42:47-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/micrometer-screw-compound-thread.png?v=1777504015</image:loc>
      <image:title>Differential Micrometer Screw: Same-Hand Lead-Difference</image:title>
      <image:caption>Micrometer Screw (compound Thread) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/movable-lathe-head-screw</loc>
    <lastmod>2026-10-05T08:30:16-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/movable-lathe-head-screw.png?v=1777504018</image:loc>
      <image:title>Movable Lathe Head: Handwheel, Screw, and Center-Spindle Travel</image:title>
      <image:caption>Movable Lathe Head Screw diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/persian-drill-quick-thread-reciprocating</loc>
    <lastmod>2026-10-04T07:04:28-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/persian-drill-quick-thread-reciprocating.png?v=1777504022</image:loc>
      <image:title>Spiral Push Drill: Lead and Stroke Geometry</image:title>
      <image:caption>Persian Drill (quick-thread Reciprocating) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/rectilinear-motion-of-slide-by-screw</loc>
    <lastmod>2026-10-05T02:53:46-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/rectilinear-motion-of-slide-by-screw.png?v=1777504025</image:loc>
      <image:title>Rectilinear Motion of Slide by Screw: How It Works, Diagram, Parts and Calculator Explained</image:title>
      <image:caption>Rectilinear Motion of Slide by Screw diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/reverse-thread-cylinder-reciprocator</loc>
    <lastmod>2026-10-05T05:17:13-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/reverse-thread-cylinder-reciprocator.png?v=1777504028</image:loc>
      <image:title>Reverse-thread Cylinder Reciprocator Mechanism: How It Works, Diagram, Parts and Uses</image:title>
      <image:caption>Reverse-thread Cylinder Reciprocator diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/right-and-left-hand-screw-nut-traverse</loc>
    <lastmod>2026-10-04T17:41:54-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/right-and-left-hand-screw-nut-traverse.png?v=1777504032</image:loc>
      <image:title>Right-and-left Hand Screw Nut Traverse Mechanism: How It Works, Parts, Diagram, and Uses</image:title>
      <image:caption>Right-and-left Hand Screw Nut Traverse diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/screw-stamping-press</loc>
    <lastmod>2026-10-07T09:27:03-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/screw-stamping-press.png?v=1777504035</image:loc>
      <image:title>Screw Stamping-press Mechanism: How It Works, Diagram, Parts, Formula and Uses Explained</image:title>
      <image:caption>Screw Stamping-press diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/screw-cutting-variable-pitch</loc>
    <lastmod>2026-10-04T17:47:07-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/screw-cutting-variable-pitch.png?v=1777504038</image:loc>
      <image:title>Screw-cutting Variable Pitch Mechanism Explained: How It Works, Diagram, Formula and CNC Uses</image:title>
      <image:caption>Screw-cutting Variable Pitch diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/screw-cutting-slide-lathe-motion</loc>
    <lastmod>2026-10-07T09:23:02-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/screw-cutting-slide-lathe-motion.png?v=1777504041</image:loc>
      <image:title>Screw-cutting/slide Lathe Motion: How It Works, Diagram, Parts, Formula and Uses Explained</image:title>
      <image:caption>Screw-cutting/slide Lathe Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/screw-pair</loc>
    <lastmod>2026-10-04T17:47:01-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/screw-pair.png?v=1777504044</image:loc>
      <image:title>Screw Pair Mechanism: How It Works, Diagram, Lead Formula, Parts, and Uses Explained</image:title>
      <image:caption>Screw Pair diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cam-and-follower-higher-pair</loc>
    <lastmod>2026-10-04T22:36:27-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cam-and-follower-higher-pair.png?v=1777504048</image:loc>
      <image:title>Cam-and-follower Higher Pair Mechanism: How It Works, Diagram, Parts, Formula and Uses Explained</image:title>
      <image:caption>Cam-and-follower Higher Pair diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cone-on-cone-rolling-pair</loc>
    <lastmod>2026-10-04T19:50:37-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cone-on-cone-rolling-pair.png?v=1777504051</image:loc>
      <image:title>Cone-on-cone Rolling Pair Mechanism: How It Works, Parts, Formula and Uses Explained</image:title>
      <image:caption>Cone-on-cone Rolling Pair diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cylinder-on-cylinder-lower-pair</loc>
    <lastmod>2026-10-04T20:59:35-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cylinder-on-cylinder-lower-pair.png?v=1777504054</image:loc>
      <image:title>Cylinder-on-cylinder Lower Pair Mechanism: How It Works, Diagram, Parts and Uses Explained</image:title>
      <image:caption>Cylinder-on-cylinder Lower Pair diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cylindrical-pair-revolute</loc>
    <lastmod>2026-10-04T21:04:46-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cylindrical-pair-revolute.png?v=1777504057</image:loc>
      <image:title>Cylindrical Pair (revolute) Mechanism Explained: How It Works, Diagram, and Uses</image:title>
      <image:caption>Cylindrical Pair (revolute) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/gear-tooth-higher-pair</loc>
    <lastmod>2026-10-05T03:45:07-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/gear-tooth-higher-pair.png?v=1777504060</image:loc>
      <image:title>Gear-Tooth Higher Pair: Involute Gear Geometry Calculator | FIRGELLI</image:title>
      <image:caption>Gear-tooth Higher Pair diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/helical-gear-higher-pair</loc>
    <lastmod>2026-10-05T06:06:40-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/helical-gear-higher-pair.png?v=1777504063</image:loc>
      <image:title>Helical Gear Pair: Ideal Force-Component Calculator | FIRGELLI</image:title>
      <image:caption>Helical Gear Higher Pair diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/hyperboloid-on-hyperboloid-pair</loc>
    <lastmod>2026-10-05T08:08:36-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/hyperboloid-on-hyperboloid-pair.png?v=1777504066</image:loc>
      <image:title>Hyperboloid Pair: Ideal Effective-Radius Ratio Calculator | FIRGELLI</image:title>
      <image:caption>Hyperboloid-on-hyperboloid Pair diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/planar-pair</loc>
    <lastmod>2026-10-04T09:04:37-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/planar-pair.png?v=1777504069</image:loc>
      <image:title>Planar Pair: Exact Three-Coordinate Pose Geometry</image:title>
      <image:caption>Planar Pair diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/prismatic-pair</loc>
    <lastmod>2026-10-04T13:58:16-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/prismatic-pair.png?v=1777504073</image:loc>
      <image:title>Prismatic Pair: Declared Sliding-Friction Ledger</image:title>
      <image:caption>Prismatic Pair diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/roller-on-cam-higher-pair</loc>
    <lastmod>2026-10-04T17:42:21-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/roller-on-cam-higher-pair.png?v=1777504076</image:loc>
      <image:title>Roller-on-cam Higher Pair Mechanism: How It Works, Diagram, Pressure Angle and Uses Explained</image:title>
      <image:caption>Roller-on-cam Higher Pair diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/sliding-and-rotating-prism-in-cylinder</loc>
    <lastmod>2026-10-07T13:13:10-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
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      <image:title>Sliding-and-rotating Prism in Cylinder: How This Two-DOF Kinematic Pair Works, Parts, and Uses</image:title>
      <image:caption>Sliding-and-rotating Prism in Cylinder diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/spherical-pair</loc>
    <lastmod>2026-10-04T17:48:25-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/spherical-pair.png?v=1777504082</image:loc>
      <image:title>Spherical Pair Mechanism Explained: How a Ball-and-Socket Joint Works, Diagram, Parts, and Uses</image:title>
      <image:caption>Spherical Pair diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/two-degree-cylindrical-pair</loc>
    <lastmod>2026-10-05T07:52:33-07:00</lastmod>
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    <image:image>
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      <image:title>Two-degree Cylindrical Pair: Independent Sliding and Rotation</image:title>
      <image:caption>Two-degree Cylindrical Pair diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/barker-s-mill-water-wheel</loc>
    <lastmod>2026-09-28T21:59:05-07:00</lastmod>
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      <image:title>Barker&apos;s Mill / Water Wheel: How This Reaction Turbine Works, Parts, Formula and Uses Explained</image:title>
      <image:caption>Barker&apos;s Mill / Water Wheel diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/paddle-wheel-form-1</loc>
    <lastmod>2026-10-05T09:50:34-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/paddle-wheel-form-1.png?v=1777504091</image:loc>
      <image:title>Undershot Paddle Wheel: Declared Radial-Paddle Layout</image:title>
      <image:caption>Paddle Wheel (form 1) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/paddle-wheel-form-2</loc>
    <lastmod>2026-10-05T09:50:37-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/paddle-wheel-form-2.png?v=1777504095</image:loc>
      <image:title>Breast-Shot Paddle Wheel: Declared Breast-Arc Layout</image:title>
      <image:caption>Paddle Wheel (form 2) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/tread-mill</loc>
    <lastmod>2026-10-05T07:51:47-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/tread-mill.png?v=1777504098</image:loc>
      <image:title>Tread Mill: Static Gravity Moment and Rim-force Equivalent</image:title>
      <image:caption>Tread Mill diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/water-wheel-form-1</loc>
    <lastmod>2026-10-05T07:55:10-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/water-wheel-form-1.png?v=1777504101</image:loc>
      <image:title>Water Wheel Form 1: Overshot Animation and Static-Moment Calculator</image:title>
      <image:caption>Water Wheel (form 1) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/water-wheel-form-2</loc>
    <lastmod>2026-10-05T07:55:11-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/water-wheel-form-2.png?v=1777504104</image:loc>
      <image:title>Water Wheel Form 2: Pitchback Animation and Power Calculator</image:title>
      <image:caption>Water Wheel (form 2) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/water-wheel-form-3</loc>
    <lastmod>2026-10-05T07:55:13-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/water-wheel-form-3.png?v=1777504108</image:loc>
      <image:title>Water Wheel Form 3: Overshot Animation, Power and Energy Calculator</image:title>
      <image:caption>Water Wheel (form 3) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/water-wheel-form-4</loc>
    <lastmod>2026-10-05T07:55:14-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/water-wheel-form-4.png?v=1777504111</image:loc>
      <image:title>Water Wheel Form 4: Current-Wheel Animation and Power Calculator</image:title>
      <image:caption>Water Wheel (form 4) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/water-wheel-form-5</loc>
    <lastmod>2026-10-05T07:55:16-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/water-wheel-form-5.png?v=1777504114</image:loc>
      <image:title>Water Wheel Form 5: Tub-Wheel Animation and Direct-Drive Power Calculator</image:title>
      <image:caption>Water Wheel (form 5) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/water-wheel-form-6</loc>
    <lastmod>2026-10-05T07:55:17-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/water-wheel-form-6.png?v=1777504118</image:loc>
      <image:title>Water Wheel Form 6: Equal-head-and-diameter Scenario</image:title>
      <image:caption>Water Wheel (form 6) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/water-wheel-form-7</loc>
    <lastmod>2026-10-05T07:55:19-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/water-wheel-form-7.png?v=1777504121</image:loc>
      <image:title>Water Wheel Form 7: Retained-water Static Moment</image:title>
      <image:caption>Water Wheel (form 7) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/water-wheel-form-8</loc>
    <lastmod>2026-10-05T07:55:20-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/water-wheel-form-8.png?v=1777504124</image:loc>
      <image:title>Water Wheel Form 8: Flow, Head and Power Calculator</image:title>
      <image:caption>Water Wheel (form 8) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/windmill-form-1</loc>
    <lastmod>2026-10-05T07:56:08-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/windmill-form-1.png?v=1777504129</image:loc>
      <image:title>Windmill Form 1: Ideal Gear Step-up Calculator</image:title>
      <image:caption>Windmill (form 1) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/windmill-form-2</loc>
    <lastmod>2026-10-05T07:56:09-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/windmill-form-2.png?v=1777504133</image:loc>
      <image:title>Windmill Form 2: Two-stage Gear-ratio Comparison</image:title>
      <image:caption>Windmill (form 2) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/collective-pitch-control-linkage</loc>
    <lastmod>2026-10-04T21:37:12-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/collective-pitch-control-linkage.png?v=1777504136</image:loc>
      <image:title>Collective Pitch Control Linkage Mechanism: How It Works, Parts, Diagram &amp; Formula</image:title>
      <image:caption>Collective Pitch Control Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/constant-speed-propeller-mechanism</loc>
    <lastmod>2026-10-04T19:46:46-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/constant-speed-propeller-mechanism.png?v=1777504139</image:loc>
      <image:title>Constant-speed Propeller Mechanism: How It Works, Parts, Diagram &amp; Governor Explained</image:title>
      <image:caption>Constant-speed Propeller Mechanism diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cyclic-pitch-control-linkage</loc>
    <lastmod>2026-10-04T20:53:03-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cyclic-pitch-control-linkage.png?v=1777504142</image:loc>
      <image:title>Cyclic Pitch Control Linkage Mechanism Explained: How It Works, Parts, Diagram and Uses</image:title>
      <image:caption>Cyclic Pitch Control Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/fowler-flap-mechanism</loc>
    <lastmod>2026-10-05T18:38:49-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/fowler-flap-mechanism-mechanism.png?v=1791249786</image:loc>
      <image:title>Fowler Flap Mechanism: Animation and Travel Calculator</image:title>
      <image:caption>Fowler Flap Mechanism — schematic of the mechanism.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/krueger-flap-mechanism</loc>
    <lastmod>2026-10-06T21:24:13-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/krueger-flap-mechanism.png?v=1777504148</image:loc>
      <image:title>Krueger Flap: Panel Concept and Entered-State Comparison | FIRGELLI</image:title>
      <image:caption>Krueger Flap Mechanism diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/slotted-flap-mechanism</loc>
    <lastmod>2026-10-07T16:55:56-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/slotted-flap-mechanism.png?v=1777504151</image:loc>
      <image:title>Slotted Flap Mechanism Explained: How It Works, Diagram, Parts, and High-Lift Uses</image:title>
      <image:caption>Slotted Flap Mechanism diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/variable-sweep-wing-pivot</loc>
    <lastmod>2026-10-05T07:54:10-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/variable-sweep-wing-pivot.png?v=1777504155</image:loc>
      <image:title>Variable Wing Sweep: Ideal Normal-Mach Projection</image:title>
      <image:caption>Variable-sweep Wing Pivot diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bolt-cutters</loc>
    <lastmod>2026-10-04T21:53:44-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bolt-cutters.png?v=1777504158</image:loc>
      <image:title>Bolt Cutters Mechanism Explained: Compound Leverage, Diagram, Animation, Calculator and FAQ</image:title>
      <image:caption>Bolt Cutters diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cramp-drill-form-1</loc>
    <lastmod>2026-10-04T20:22:31-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cramp-drill-form-1.png?v=1777504162</image:loc>
      <image:title>Cramp Drill (form 1) Mechanism Explained: How the Screw-Feed Hand Drill Works, Parts &amp; Uses</image:title>
      <image:caption>Cramp Drill (form 1) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cramp-drill-form-2</loc>
    <lastmod>2026-10-04T20:22:34-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cramp-drill-form-2.png?v=1777504165</image:loc>
      <image:title>Cramp Drill (form 2) Mechanism Explained: How the Screw-Feed Hand Drill Works, Parts and Uses</image:title>
      <image:caption>Cramp Drill (form 2) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/drill-general</loc>
    <lastmod>2026-10-04T22:24:51-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/drill-general.png?v=1777504168</image:loc>
      <image:title>Drill (general) Mechanism Explained: How It Works, Parts, RPM Formula and Uses</image:title>
      <image:caption>Drill (general) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/fiddle-drill</loc>
    <lastmod>2026-10-05T16:29:10-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/fiddle-drill.png?v=1777504171</image:loc>
      <image:title>Fiddle Drill: Bow Travel and Alternating Rotation Calculator | FIRGELLI</image:title>
      <image:caption>Fiddle Drill diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/horse-clipper</loc>
    <lastmod>2026-10-05T06:57:19-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/horse-clipper.png?v=1777504174</image:loc>
      <image:title>Horse Clipper: Cutter Motion and Ideal Eccentric Calculator | FIRGELLI</image:title>
      <image:caption>Horse Clipper diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/machine-sheep-shears</loc>
    <lastmod>2026-10-05T00:04:28-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/machine-sheep-shears.png?v=1777504180</image:loc>
      <image:title>Machine Sheep Shears: Crank, Reciprocating Cutter and Comb</image:title>
      <image:caption>Machine Sheep Shears diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/multiple-bladed-sheep-shears</loc>
    <lastmod>2026-10-05T08:40:18-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/multiple-bladed-sheep-shears.png?v=1777504183</image:loc>
      <image:title>Multiple-Bladed Sheep Shears: Sliding Plates and Slot-Limited Travel</image:title>
      <image:caption>Multiple Bladed Sheep Shears diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/slip-joint-pliers</loc>
    <lastmod>2026-10-04T17:51:10-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/slip-joint-pliers.png?v=1777504186</image:loc>
      <image:title>Slip-joint Pliers Mechanism Explained: How the Slot-and-Pin Pivot, Lever Ratio, and Jaw Geometry Work</image:title>
      <image:caption>Slip-joint Pliers diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/toggle-bolt</loc>
    <lastmod>2026-10-05T07:50:57-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/toggle-bolt.png?v=1777504189</image:loc>
      <image:title>Toggle Bolt: Wing Movement and Product-table Comparison</image:title>
      <image:caption>Toggle Bolt diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/tongue-and-groove-pliers</loc>
    <lastmod>2026-10-05T07:51:10-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/tongue-and-groove-pliers.png?v=1777504192</image:loc>
      <image:title>Tongue-and-groove Pliers: Adjustable Pivot and Assumed Force Ratio</image:title>
      <image:caption>Tongue-and-groove Pliers diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/caliper-brake</loc>
    <lastmod>2026-10-04T22:14:42-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/caliper-brake.png?v=1777504196</image:loc>
      <image:title>Caliper Brake Mechanism: How It Works, Parts, Diagram, and Brake Torque Formula Explained</image:title>
      <image:caption>Caliper Brake diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cone-brake</loc>
    <lastmod>2026-10-04T19:50:28-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cone-brake.png?v=1777504199</image:loc>
      <image:title>Cone Brake Mechanism Explained: How It Works, Parts, Diagram, Formula and Industrial Uses</image:title>
      <image:caption>Cone Brake diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/eddy-current-brake</loc>
    <lastmod>2026-10-04T22:44:15-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/eddy-current-brake.png?v=1777504209</image:loc>
      <image:title>Eddy Current Brake Mechanism Explained: How It Works, Parts, Formula, Diagram and Uses</image:title>
      <image:caption>Eddy Current Brake diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/friction-brake-cranes</loc>
    <lastmod>2026-10-05T18:48:36-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/friction-brake-cranes.png?v=1777504212</image:loc>
      <image:title>Crane Friction Brake: Torque and Coefficient Comparison | FIRGELLI</image:title>
      <image:caption>Friction Brake (cranes) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/friction-brake-for-street-railway-cars</loc>
    <lastmod>2026-10-05T18:56:33-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/friction-brake-for-street-railway-cars.png?v=1777504216</image:loc>
      <image:title>Street-Railway Tread Brake: Per-Shoe Force Calculator | FIRGELLI</image:title>
      <image:caption>Friction Brake for Street Railway Cars diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/novel-car-brake</loc>
    <lastmod>2026-10-05T09:09:45-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/novel-car-brake.png?v=1777504219</image:loc>
      <image:title>Novel Car Brake: Hiscox Adjustable Connecting-Bar Mechanism</image:title>
      <image:caption>Novel Car Brake diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/prouty-nooje-automatic-brake</loc>
    <lastmod>2026-10-04T14:37:08-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/prouty-nooje-automatic-brake.png?v=1777504222</image:loc>
      <image:title>Prouty-Noble Self-Winding Brake: Cone-Clutch Chain Spool</image:title>
      <image:caption>Prouty-nooje Automatic Brake diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/servo-brake</loc>
    <lastmod>2026-10-04T17:47:40-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/servo-brake.png?v=1777504225</image:loc>
      <image:title>Servo Brake Mechanism Explained: How It Works, Parts, Diagram, Formula and Holding Torque Sizing</image:title>
      <image:caption>Servo Brake diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/de-dion-tube-suspension</loc>
    <lastmod>2026-10-04T21:07:04-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/de-dion-tube-suspension.png?v=1777504229</image:loc>
      <image:title>De Dion Tube Suspension Mechanism Explained: Parts, Diagram, and Unsprung Mass Calculator</image:title>
      <image:caption>De Dion Tube Suspension diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/double-wishbone-suspension</loc>
    <lastmod>2026-10-04T22:12:46-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/double-wishbone-suspension.png?v=1777504232</image:loc>
      <image:title>Double Wishbone Suspension Mechanism: How It Works, Parts, Geometry &amp; Camber Gain Explained</image:title>
      <image:caption>Double Wishbone Suspension diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/live-axle-hotchkiss-drive</loc>
    <lastmod>2026-10-04T23:55:02-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/live-axle-hotchkiss-drive.png?v=1777504235</image:loc>
      <image:title>Hotchkiss Live Axle: Layout and Ideal Shaft Torque</image:title>
      <image:caption>Live Axle (hotchkiss Drive) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/macpherson-strut</loc>
    <lastmod>2026-10-05T00:06:20-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/macpherson-strut.png?v=1777504238</image:loc>
      <image:title>MacPherson Strut: Components and Local Wheel-Rate Calculator</image:title>
      <image:caption>Macpherson Strut diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/multi-link-suspension</loc>
    <lastmod>2026-10-05T08:38:29-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/multi-link-suspension.png?v=1777504241</image:loc>
      <image:title>Multi-Link Suspension: Five-Link Connection Map and Constraint Rank</image:title>
      <image:caption>Multi-link Suspension diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/semi-trailing-arm-suspension</loc>
    <lastmod>2026-10-04T17:47:31-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/semi-trailing-arm-suspension.png?v=1777504244</image:loc>
      <image:title>Semi-trailing Arm Suspension Mechanism: How It Works, Geometry, Parts &amp; Uses Explained</image:title>
      <image:caption>Semi-trailing Arm Suspension diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/trailing-arm-suspension</loc>
    <lastmod>2026-10-05T07:51:24-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/trailing-arm-suspension.png?v=1777504248</image:loc>
      <image:title>Trailing Arm Suspension: Ideal Wheel-centre Path Calculator</image:title>
      <image:caption>Trailing Arm Suspension diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/watt-s-link-rear-suspension</loc>
    <lastmod>2026-10-05T07:55:29-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/watt-s-link-rear-suspension.png?v=1777504251</image:loc>
      <image:title>Watt&apos;s Link Rear Suspension: Single-link Geometry Reference</image:title>
      <image:caption>Watt&apos;s Link Rear Suspension diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/governor-form</loc>
    <lastmod>2026-10-06T01:24:06-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/governor-form.png?v=1777504254</image:loc>
      <image:title>Centrifugal Governor: Flyweight Force Calculator | FIRGELLI</image:title>
      <image:caption>Governor (form) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/parabolic-governor</loc>
    <lastmod>2026-10-05T09:57:25-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/parabolic-governor.png?v=1777504257</image:loc>
      <image:title>Parabolic Governor: Declared Curved-Guide Geometry</image:title>
      <image:caption>Parabolic Governor diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/pickering-governor</loc>
    <lastmod>2026-10-04T07:32:07-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/pickering-governor.png?v=1777504260</image:loc>
      <image:title>Pickering Governor: Centrifugal Force and Spring-Ball Motion</image:title>
      <image:caption>Pickering Governor diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/water-wheel-governor</loc>
    <lastmod>2026-10-05T07:55:22-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/water-wheel-governor.png?v=1777504263</image:loc>
      <image:title>Water-wheel Governor: Belt Speed and Illustrative Gate Command</image:title>
      <image:caption>Water Wheel Governor diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/crossed-arm-steam-engine-governor</loc>
    <lastmod>2026-10-04T20:34:31-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/crossed-arm-steam-engine-governor.png?v=1777504266</image:loc>
      <image:title>Crossed-arm Steam Engine Governor Mechanism Explained: How It Works, Parts, Diagram and Uses</image:title>
      <image:caption>Crossed-arm Steam Engine Governor diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/steam-engine-governor-centrifugal-w-inclined-planes</loc>
    <lastmod>2026-10-04T17:49:11-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/steam-engine-governor-centrifugal-w-inclined-planes.png?v=1777504269</image:loc>
      <image:title>Steam Engine Governor (centrifugal W/ Inclined Planes): How It Works, Parts, Diagram &amp; Formula</image:title>
      <image:caption>Steam Engine Governor (centrifugal W/ Inclined Planes) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bennett-s-linkage</loc>
    <lastmod>2026-10-04T20:24:11-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bennett-s-linkage.png?v=1777504272</image:loc>
      <image:title>Bennett&apos;s Linkage Mechanism Explained: How It Works, Geometry, Formula, Uses &amp; Animation</image:title>
      <image:caption>Bennett&apos;s Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bricard-6r-linkage</loc>
    <lastmod>2026-10-04T22:01:25-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bricard-6r-linkage.png?v=1777504277</image:loc>
      <image:title>Bricard 6R Linkage Mechanism Explained: How the Overconstrained 6R Loop Works, Parts, and Uses</image:title>
      <image:caption>Bricard 6R Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/spatial-rssr-linkage</loc>
    <lastmod>2026-10-04T17:48:22-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/spatial-rssr-linkage.png?v=1777504280</image:loc>
      <image:title>Spatial RSSR Linkage Mechanism: How It Works, Parts, Diagram and Uses Explained</image:title>
      <image:caption>Spatial RSSR Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/sarrus-linkage</loc>
    <lastmod>2026-10-04T17:44:34-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/sarrus-linkage.png?v=1777504283</image:loc>
      <image:title>Sarrus Linkage Mechanism: How It Works, Parts, Formula, Diagram and Uses Explained</image:title>
      <image:caption>Sarrus Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/goldberg-5r-linkage</loc>
    <lastmod>2026-10-06T08:57:34-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/goldberg-5r-linkage-mechanism.png?v=1791302254</image:loc>
      <image:title>Goldberg 5R Linkage: Spatial Animation and Geometry Calculator</image:title>
      <image:caption>Goldberg 5R Linkage — schematic of the mechanism.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/schatz-linkage</loc>
    <lastmod>2026-10-07T09:17:39-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/schatz-linkage.png?v=1777504289</image:loc>
      <image:title>Schatz Linkage Mechanism: How the Six-Bar Spatial Inversion Works, Parts, Diagram and Uses</image:title>
      <image:caption>Schatz Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/spherical-four-bar-linkage</loc>
    <lastmod>2026-10-04T17:44:54-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/spherical-four-bar-linkage.png?v=1777504293</image:loc>
      <image:title>Spherical Four-bar Linkage Mechanism Explained: How It Works, Parts, Diagram and Uses</image:title>
      <image:caption>Spherical Four-bar Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cartesian-robot-mechanism</loc>
    <lastmod>2026-10-04T20:48:17-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cartesian-robot-mechanism.png?v=1777504296</image:loc>
      <image:title>Cartesian Robot Mechanism: How XYZ Gantry Robots Work, Parts, Uses and Motion Formula Explained</image:title>
      <image:caption>Cartesian Robot Mechanism diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/delta-robot</loc>
    <lastmod>2026-10-04T21:12:28-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/delta-robot.png?v=1777504299</image:loc>
      <image:title>Delta Robot Mechanism: How Parallel Kinematic Pick-and-Place Works, Parts, Diagram, and Uses</image:title>
      <image:caption>Delta Robot diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/scara-arm</loc>
    <lastmod>2026-10-04T17:46:48-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/scara-arm.png?v=1777504305</image:loc>
      <image:title>SCARA Arm Mechanism Explained: How a 4-Axis Selectively Compliant Robot Works</image:title>
      <image:caption>SCARA Arm diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/spherical-wrist</loc>
    <lastmod>2026-10-04T17:48:27-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/spherical-wrist.png?v=1777504309</image:loc>
      <image:title>Spherical Wrist Mechanism Explained: How It Works, Diagram, Parts, Formula and Industrial Uses</image:title>
      <image:caption>Spherical Wrist diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/stewart-platform-hexapod</loc>
    <lastmod>2026-10-04T17:49:44-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/stewart-platform-hexapod.png?v=1777504312</image:loc>
      <image:title>Stewart Platform (hexapod) Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses</image:title>
      <image:caption>Stewart Platform (hexapod) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/steering-gear</loc>
    <lastmod>2026-10-04T17:49:34-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/steering-gear.png?v=1777504315</image:loc>
      <image:title>Steering Gear Mechanism Explained: How It Works, Parts, Diagram and Steering Ratio Formula</image:title>
      <image:caption>Steering Gear diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/ackermann-steering-linkage</loc>
    <lastmod>2026-10-04T23:00:08-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/ackermann-steering-linkage.png?v=1777504318</image:loc>
      <image:title>Ackermann Steering Linkage Mechanism: How It Works, Diagram, Geometry, Formula and Uses Explained</image:title>
      <image:caption>Ackermann Steering Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bell-crank-steering</loc>
    <lastmod>2026-09-28T23:02:30-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bell-crank-steering.png?v=1777504321</image:loc>
      <image:title>Bell Crank Steering Mechanism: How It Works, Diagram, Formula and Real-World Uses</image:title>
      <image:caption>Bell Crank Steering diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/pitman-arm</loc>
    <lastmod>2026-10-04T08:38:44-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/pitman-arm.png?v=1777504324</image:loc>
      <image:title>Pitman Arm and Drag Link: Exact Declared Planar Geometry</image:title>
      <image:caption>Pitman Arm diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/recirculating-ball-steering</loc>
    <lastmod>2026-10-05T01:02:24-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/recirculating-ball-steering.png?v=1777504327</image:loc>
      <image:title>Recirculating Ball Steering Mechanism Explained: How It Works, Parts, Diagram, Uses &amp; Formula</image:title>
      <image:caption>Recirculating Ball Steering diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/worm-and-roller-steering</loc>
    <lastmod>2026-10-05T07:56:34-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/worm-and-roller-steering.png?v=1777504330</image:loc>
      <image:title>Worm-and-roller Steering Mechanism: How It Works, Diagram, Parts, Formula and Uses Explained</image:title>
      <image:caption>Worm-and-roller Steering diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bistable-buckled-beam-mechanism</loc>
    <lastmod>2026-10-04T19:45:40-07:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bistable-buckled-beam-mechanism.png?v=1777504333</image:loc>
      <image:title>Bistable Buckled-beam Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses</image:title>
      <image:caption>Bistable Buckled-beam Mechanism diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/cross-axis-flexure-pivot</loc>
    <lastmod>2026-10-04T20:31:48-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/cross-axis-flexure-pivot.png?v=1777504336</image:loc>
      <image:title>Cross-axis Flexure Pivot Mechanism: How It Works, Parts, Formula, Diagram and Uses Explained</image:title>
      <image:caption>Cross-axis Flexure Pivot diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/living-hinge</loc>
    <lastmod>2026-10-04T23:55:06-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/living-hinge.png?v=1777504339</image:loc>
      <image:title>Living Hinge Mechanism Explained: How It Works, Diagram, Formula, and Design Parts</image:title>
      <image:caption>Living Hinge diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/miura-fold-deployable-mechanism</loc>
    <lastmod>2026-10-05T00:51:34-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/miura-fold-deployable-mechanism.png?v=1777504342</image:loc>
      <image:title>Miura-ori: Exact Flat-Pattern Geometry and Qualitative Fold View</image:title>
      <image:caption>Miura Fold Deployable Mechanism diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/origami-waterbomb-base-mechanism</loc>
    <lastmod>2026-10-06T21:56:13-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/origami-waterbomb-base-mechanism.png?v=1777504345</image:loc>
      <image:title>Origami Waterbomb Base: Crease-Pattern Geometry</image:title>
      <image:caption>Origami Waterbomb Base Mechanism diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/tape-spring-hinge</loc>
    <lastmod>2026-10-05T07:49:43-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/tape-spring-hinge.png?v=1777504349</image:loc>
      <image:title>Tape-spring Hinge: Cross-section Geometry Calculator</image:title>
      <image:caption>Tape-spring Hinge diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/theo-jansen-strandbeest-leg</loc>
    <lastmod>2026-10-05T07:50:11-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/theo-jansen-strandbeest-leg.png?v=1777504351</image:loc>
      <image:title>Theo Jansen Strandbeest: Reference-dimension Scaling</image:title>
      <image:caption>Theo Jansen Strandbeest Leg diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/chebyshev-plantigrade-machine</loc>
    <lastmod>2026-10-04T21:15:47-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/chebyshev-plantigrade-machine.png?v=1777504354</image:loc>
      <image:title>Chebyshev Plantigrade Machine: How This Walking Linkage Works, Parts, Formula, and Uses Explained</image:title>
      <image:caption>Chebyshev Plantigrade Machine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/ghassaei-walking-linkage</loc>
    <lastmod>2026-10-05T23:40:50-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/ghassaei-walking-linkage-mechanism.png?v=1791268849</image:loc>
      <image:title>Ghassaei Walking Linkage: Foot-Path Animation and Calculator</image:title>
      <image:caption>Ghassaei Walking Linkage — schematic of the mechanism.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/trotbot-leg-linkage</loc>
    <lastmod>2026-10-05T07:52:04-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/trotbot-leg-linkage.png?v=1777504361</image:loc>
      <image:title>TrotBot Leg Linkage: Walking Animation and Clearance Comparison</image:title>
      <image:caption>Trotbot Leg Linkage diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/clutch-form</loc>
    <lastmod>2026-10-04T21:39:48-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/clutch-form.png?v=1777504364</image:loc>
      <image:title>Clutch (form) Mechanism Explained: How Dog and Jaw Clutches Transmit Torque</image:title>
      <image:caption>Clutch (form) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/frictional-clutch-box</loc>
    <lastmod>2026-10-05T02:51:24-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/frictional-clutch-box.png?v=1777504367</image:loc>
      <image:title>Frictional Clutch-box: Plate-stack Torque Calculator | FIRGELLI</image:title>
      <image:caption>Frictional Clutch-box diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/sliding-clutch-box</loc>
    <lastmod>2026-08-24T10:16:17-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/sliding-clutch-box.png?v=1777504370</image:loc>
      <image:title>Sliding Clutch-box Mechanism Explained: How It Works, Parts, Diagram, Formula and Uses</image:title>
      <image:caption>Sliding Clutch-box diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/stud-and-hole-clutch-box</loc>
    <lastmod>2026-10-05T07:48:59-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/stud-and-hole-clutch-box.png?v=1777504373</image:loc>
      <image:title>Stud-and-Hole Clutch: Animation and Index Calculator | FIRGELLI</image:title>
      <image:caption>Stud-and-hole Clutch-box diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/curvic-coupling-indexing</loc>
    <lastmod>2026-10-04T20:51:10-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/curvic-coupling-indexing.png?v=1777504376</image:loc>
      <image:title>Curvic Coupling Indexing Mechanism Explained: How It Works, Parts, Formula and Uses</image:title>
      <image:caption>Curvic Coupling Indexing diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/hirth-coupling-indexing</loc>
    <lastmod>2026-10-05T06:28:27-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/hirth-coupling-indexing.png?v=1777504380</image:loc>
      <image:title>Hirth Coupling Indexing: Ideal Pitch and Angle Calculator | FIRGELLI</image:title>
      <image:caption>Hirth Coupling Indexing diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/miscellaneous-form</loc>
    <lastmod>2026-10-05T00:49:41-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/miscellaneous-form.png?v=1777504386</image:loc>
      <image:title>External Geneva Drive: Index and Dwell</image:title>
      <image:caption>Miscellaneous (form) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/miscellaneous-motion</loc>
    <lastmod>2026-10-05T00:49:45-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/miscellaneous-motion.png?v=1777504389</image:loc>
      <image:title>Barrel Cam: Rise–Dwell–Return Timing</image:title>
      <image:caption>Miscellaneous Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/travelling-crane</loc>
    <lastmod>2026-10-05T07:51:40-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/travelling-crane.png?v=1777502187</image:loc>
      <image:title>Travelling Crane: Plan-view Geometry Calculator</image:title>
      <image:caption>Travelling Crane diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/whitworth-quick-return</loc>
    <lastmod>2026-10-05T07:55:55-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/whitworth-quick-return.png?v=1777502267</image:loc>
      <image:title>Whitworth Quick-return: Angular Timing and Clearance Comparison</image:title>
      <image:caption>Whitworth Quick-return diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/floating-dry-dock</loc>
    <lastmod>2026-10-05T16:58:19-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/floating-dry-dock.png?v=1777502274</image:loc>
      <image:title>Floating Dry-dock: Ballast, Buoyancy and Ship Support | FIRGELLI</image:title>
      <image:caption>Floating Dry-dock diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lateen-rigged-felucca</loc>
    <lastmod>2026-10-06T21:41:41-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/lateen-rigged-felucca.png?v=1777502281</image:loc>
      <image:title>Lateen-rigged Felucca Mechanism Explained: Sail Diagram, Parts, Rig Geometry &amp; Uses</image:title>
      <image:caption>Lateen-rigged Felucca diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/leg-of-mutton-sail</loc>
    <lastmod>2026-10-04T20:56:57-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/leg-of-mutton-sail.png?v=1777502284</image:loc>
      <image:title>Leg-of-mutton Sail Mechanism Explained: How It Works, Parts, Uses, and Aerodynamic Force Diagram</image:title>
      <image:caption>Leg-of-mutton Sail diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/watt-parallel-motion</loc>
    <lastmod>2026-10-05T07:55:25-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/watt-parallel-motion.png?v=1777502313</image:loc>
      <image:title>Watt Parallel Motion: Linkage Illustration and Coupler Division</image:title>
      <image:caption>Watt Parallel Motion diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/proportion-compasses-hyperbola-drawing</loc>
    <lastmod>2026-10-04T14:25:24-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/proportion-compasses-hyperbola-drawing.png?v=1777502372</image:loc>
      <image:title>Proportional Dividers: Exact Similar-Triangle Scaling</image:title>
      <image:caption>Proportion Compasses / Hyperbola Drawing diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/direct-air-pressure-pump</loc>
    <lastmod>2026-10-04T21:31:11-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/direct-air-pressure-pump.png?v=1777502449</image:loc>
      <image:title>Direct Air Pressure Pump Mechanism: How It Works, Parts, Formula and Uses Explained</image:title>
      <image:caption>Direct Air Pressure Pump diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/hydraulic-air-compressor</loc>
    <lastmod>2026-10-05T07:21:46-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/hydraulic-air-compressor.png?v=1777502498</image:loc>
      <image:title>Hydraulic Air Compressor: Static Head and Pressure Calculator | FIRGELLI</image:title>
      <image:caption>Hydraulic Air Compressor diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/windmill-and-steel-tower</loc>
    <lastmod>2026-10-05T07:56:11-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/windmill-and-steel-tower.png?v=1777502578</image:loc>
      <image:title>Windmill and Steel Tower: Hypothetical Pumping Sensitivity</image:title>
      <image:caption>Windmill and Steel Tower diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/driving-mechanism</loc>
    <lastmod>2026-10-04T22:28:49-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/driving-mechanism.png?v=1777502650</image:loc>
      <image:title>Hunt Conveyor Driving Mechanism: Fixed Cam, Pawls and Chain Calculator</image:title>
      <image:caption>Driving Mechanism diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/log-conveyer</loc>
    <lastmod>2026-10-04T23:58:35-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/log-conveyer.png?v=1777502697</image:loc>
      <image:title>Log Conveyor: Discrete Log Spacing and Rate</image:title>
      <image:caption>Log Conveyer diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/portable-diamond-drill</loc>
    <lastmod>2026-10-04T11:25:36-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/portable-diamond-drill.png?v=1777502726</image:loc>
      <image:title>Portable Diamond Core Drill: Declared Annular Geometry and Kinematics</image:title>
      <image:caption>Portable Diamond Drill diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/steam-hoisting-engine</loc>
    <lastmod>2026-10-04T17:49:19-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/steam-hoisting-engine.png?v=1777502762</image:loc>
      <image:title>Steam Hoisting Engine Mechanism: How Mine Winders Work, Parts, Diagram, and Rope Speed Formula</image:title>
      <image:caption>Steam Hoisting Engine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/tappet-valve-for-a-rock-drill</loc>
    <lastmod>2026-10-05T07:49:49-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/tappet-valve-for-a-rock-drill.png?v=1777502772</image:loc>
      <image:title>Rock-drill Tappet Valve: Concept and Rate Interpolation</image:title>
      <image:caption>Tappet Valve for a Rock Drill diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/lewis-stone-lifting-wedge</loc>
    <lastmod>2026-10-04T23:37:55-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/lewis-stone-lifting-wedge.png?v=1777502778</image:loc>
      <image:title>Lewis Stone Lifter: Patent Component Map</image:title>
      <image:caption>Lewis (stone Lifting Wedge) diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bridge-truss</loc>
    <lastmod>2026-10-04T22:02:55-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bridge-truss.png?v=1777502804</image:loc>
      <image:title>Bridge Truss Mechanism Explained: How It Works, Parts, Forces and Span Uses</image:title>
      <image:caption>Bridge Truss diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/deck-bridge-trusses</loc>
    <lastmod>2026-10-04T21:09:28-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/deck-bridge-trusses.png?v=1777502833</image:loc>
      <image:title>Deck Bridge Trusses Explained: How They Work, Load Path Diagram, Parts, Uses, and Top-Chord Formula</image:title>
      <image:caption>Deck Bridge Trusses diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/shears-with-winch-or-tackle-block</loc>
    <lastmod>2026-10-07T10:10:33-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/shears-with-winch-or-tackle-block.png?v=1777502895</image:loc>
      <image:title>Shears with Winch or Tackle Block: How It Works, Diagram, Formula &amp; Rigging Uses Explained</image:title>
      <image:caption>Shears with Winch or Tackle Block diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/suspension-bridges</loc>
    <lastmod>2026-10-05T07:49:09-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/suspension-bridges.png?v=1777502907</image:loc>
      <image:title>Suspension Bridges Mechanism: How Cable Tension, Towers, and Anchorages Work — Diagram &amp; Calculator</image:title>
      <image:caption>Suspension Bridges diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/wooden-road-bridge-truss</loc>
    <lastmod>2026-10-05T07:56:26-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/wooden-road-bridge-truss.png?v=1777502947</image:loc>
      <image:title>Wooden Road Bridge Truss: Ideal Support-reaction Calculator</image:title>
      <image:caption>Wooden Road Bridge Truss diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/solid-end-connecting-rod</loc>
    <lastmod>2026-10-04T17:48:18-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/solid-end-connecting-rod.png?v=1777503181</image:loc>
      <image:title>Solid End Connecting Rod Mechanism Explained: How It Works, Diagram, Parts, Uses, and Calculator</image:title>
      <image:caption>Solid End Connecting Rod diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/stirling-engine-beta</loc>
    <lastmod>2026-10-05T07:48:27-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/stirling-engine-beta.png?v=1777503201</image:loc>
      <image:title>Beta Stirling Engine: Animation and Geometry Calculator | FIRGELLI</image:title>
      <image:caption>Stirling Engine Beta diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/stirling-engine-gamma</loc>
    <lastmod>2026-10-05T07:48:28-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/stirling-engine-gamma.png?v=1777503204</image:loc>
      <image:title>Gamma Stirling Engine: Animation, Geometry and Timing Calculator</image:title>
      <image:caption>Stirling Engine Gamma diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/bipolar-shunt-generator</loc>
    <lastmod>2026-10-04T20:35:22-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/bipolar-shunt-generator.png?v=1777503248</image:loc>
      <image:title>Bipolar Shunt Generator Mechanism: How Self-Excitation Works, Diagram, Parts and Uses Explained</image:title>
      <image:caption>Bipolar Shunt Generator diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/direct-connected-vertical-compound-engine</loc>
    <lastmod>2026-10-04T21:34:23-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/direct-connected-vertical-compound-engine.png?v=1777503257</image:loc>
      <image:title>Direct-connected Vertical Compound Engine: How It Works, Parts, Diagram &amp; Uses in Power Stations</image:title>
      <image:caption>Direct-connected Vertical Compound Engine diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/electric-brake</loc>
    <lastmod>2026-10-04T22:50:57-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/electric-brake.png?v=1777503261</image:loc>
      <image:title>Electric Brake Mechanism: How It Works, Diagram, Parts, Holding Torque Formula and Uses</image:title>
      <image:caption>Electric Brake diagram</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/mechanisms/recording-watt-hour-meter</loc>
    <lastmod>2026-10-05T01:48:18-07:00</lastmod>
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      <image:caption>Recording Watt-hour Meter diagram</image:caption>
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      <image:caption>Chain and Pulley (form 3) diagram</image:caption>
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      <image:caption>Counter-weighted Gas Holder diagram</image:caption>
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      <image:caption>Disc Valve for Large Gas Pipes diagram</image:caption>
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      <image:caption>Pipe Wrench (stillson) diagram</image:caption>
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      <image:caption>Linear actuator potentiometer feedback voltage position diagram</image:caption>
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      <image:title>Corrosion-Resistant Actuators: What Salt Spray Testing Means for Real Applications</image:title>
      <image:caption>Corrosion-Resistant Actuators: What Salt Spray Testing Means for Real Applications technical hero image</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/robotics/linear-actuator-speed-explained-load-voltage-gear-ratio-and-real-world</loc>
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      <image:title>Linear Actuator Speed Explained: Load, Voltage, Gear Ratio, and Real-World Tradeoffs</image:title>
      <image:caption>Linear Actuator Speed Explained: Load, Voltage, Gear Ratio, and Real-World Tradeoffs technical hero image</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/automotive/safety-factors-when-choosing-an-actuator-for-vehicle-automation</loc>
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    <image:image>
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      <image:title>Safety Factors When Choosing an Actuator for Vehicle Automation</image:title>
      <image:caption>Safety Factors When Choosing an Actuator for Vehicle Automation technical hero image</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/industrial-farming/washdown-actuators-for-food-and-beverage-equipment-ip-ratings-material</loc>
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      <image:title>Washdown Actuators for Food and Beverage Equipment: IP Ratings, Materials, and Cleaning</image:title>
      <image:caption>Washdown Actuators for Food and Beverage Equipment: IP Ratings, Materials, and Cleaning technical hero image</image:caption>
    </image:image>
  </url>
  <url>
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      <image:title>Electric Actuator vs Hydraulic Actuator Guide: How to Choose</image:title>
      <image:caption>electric actuator vs hydraulic actuator engineering illustration for FIRGELLI actuator selection</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://www.firgelliauto.com/blogs/news/synchronized-linear-actuators</loc>
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    <image:image>
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      <image:title>Synchronized Linear Actuators Guide: How to Lift Level Loads</image:title>
      <image:caption>synchronized linear actuators engineering illustration for FIRGELLI actuator selection</image:caption>
    </image:image>
  </url>
  <url>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0615/2193/articles/8aa2de51ddbc6c3fde808c341214d068_1eb9a49b-2ce8-4b0f-b277-4c774d9f72a2.png?v=1781654780</image:loc>
      <image:title>Waterproof Linear Actuator for Boats Guide: How to Size</image:title>
      <image:caption>waterproof linear actuator for boats engineering illustration for FIRGELLI actuator selection</image:caption>
    </image:image>
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    <image:image>
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      <image:title>Hall Effect Linear Actuator Guide: How to Pick Feedback</image:title>
      <image:caption>hall effect linear actuator guide engineering illustration for FIRGELLI actuator selection</image:caption>
    </image:image>
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  <url>
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    <image:image>
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      <image:title>Potentiometer Feedback Actuator Guide: How to Read Position</image:title>
      <image:caption>potentiometer feedback actuator guide engineering illustration for FIRGELLI actuator selection</image:caption>
    </image:image>
  </url>
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    <image:image>
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      <image:title>Optical Feedback Actuator Guide: How to Read Position Accurately</image:title>
      <image:caption>optical feedback actuator guide engineering illustration for FIRGELLI actuator selection</image:caption>
    </image:image>
  </url>
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    <image:image>
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      <image:title>How to Synchronize Two Linear Actuators Guide: Sync Setup</image:title>
      <image:caption>FIRGELLI two actuator synchronization with FCB-2 controller and real actuator reference images</image:caption>
    </image:image>
  </url>
  <url>
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      <image:title>How to Synchronize Four Linear Actuators Guide: Wiring Setup</image:title>
      <image:caption>FIRGELLI four actuator synchronization with FCB-2 controller and real actuator reference images</image:caption>
    </image:image>
  </url>
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      <image:title>Feedback actuator vs standard actuator Guide: How to Choose</image:title>
      <image:caption>FIRGELLI feedback actuator versus standard actuator guide with real actuator reference images</image:caption>
    </image:image>
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      <image:title>Linear Actuator Controller Buying Guide: How to Choose Yours</image:title>
      <image:caption>FIRGELLI linear actuator controller buying guide with real actuator and FCB-2 controller reference images</image:caption>
    </image:image>
  </url>
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      <image:title>2 Actuator Control Box Guide: How to Wire and Sync Lifts</image:title>
      <image:caption>FIRGELLI 2 actuator control box guide with FCB-2 controller and real actuator reference images</image:caption>
    </image:image>
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      <image:title>EV Motor Sizing Calculator</image:title>
      <image:caption>EV Motor Sizing Calculator engineering visual</image:caption>
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      <image:title>EV Battery Pack Sizing Calculator</image:title>
      <image:caption>EV Battery Pack Sizing Calculator engineering visual</image:caption>
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      <image:title>EV Gear Ratio Calculator</image:title>
      <image:caption>EV Gear Ratio Calculator engineering visual</image:caption>
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      <image:title>EV Motor Kv and Kt Calculator</image:title>
      <image:caption>EV Motor Kv and Kt Calculator engineering visual</image:caption>
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      <image:title>4 Actuator Control Box Guide: How to Wire and Sync Lifts</image:title>
      <image:caption>4 actuator control box guide with FIRGELLI product reference images</image:caption>
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      <image:caption>12V Linear Actuator Wiring Guide: How to Wire DC Power Safely - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>24V Linear Actuator Wiring Guide: How to Wire DC Safely - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Greenhouse Vent Actuator Guide: How to Automate Airflow - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Actuator for Automated Testing Equipment Guide: How to Spec - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Actuator for Conveyor Systems Guide: How to Size Your Drive - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Actuator for Packaging Machines Guide: How to Size Motion - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Actuator for Bar Feeder Guide: How to Size Stock Motion - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Actuator for Filtration Machinery Guide: How to Size Motion - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Actuator for commercial kitchen equipment Guide: How to Size - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Actuator for Grain Handling Guide: How to Size Gates and Chutes - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Actuator for Feeding Automation Guide: How to Size Feeds - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Actuator for Irrigation Systems Guide: How to Size Valves - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Actuator for Mobile Machinery Guide: How to Spec Motion - application-specific linear actuator engineering guide</image:caption>
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      <image:title>Actuator for Construction Equipment Guide: How to Spec Loads</image:title>
      <image:caption>Actuator for Construction Equipment Guide: How to Spec Loads - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Actuator for Skid Steer Attachment Guide: How to Size Motion - application-specific linear actuator engineering guide</image:caption>
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      <image:caption>Actuator for Lawn Mower Deck Lift Guide: How to Size It - application-specific linear actuator engineering guide</image:caption>
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