Mechanisms — Intermittent Motion & Counters

Recent Blogs

Worm-gear Jumping Motion with Weight diagram
Worm-gear Jumping Motion with Weight Mechanism: How It Works, Diagram, Parts and Uses
Worm-gear jumping motion with weight gives slow wind-up plus instant release for impact counters, escapements, and reset mechanisms in industrial machines.
Worm-gear Jumping Motion with Tumbler diagram
Worm-gear Jumping Motion with Tumbler Explained: How It Works, Parts, Uses, and Step-Rate Formula
Worm-gear jumping motion with tumbler explained — how the slip-and-snap action drives intermittent counters in textile, packaging, and metering machines.
Worm-gear Jumping Motion with Cam diagram
Worm-gear Jumping Motion with Cam Mechanism: How It Works, Parts, Uses & Snap Energy Formula
Worm-gear jumping motion with cam explained — how the cam loads, releases, and snaps the follower for indexing in counters, calendars, and meter dials.
Watch-winding Stop (form 3) diagram
Watch-winding Stop (form 3) Mechanism: How It Works, Parts, Diagram, and Turn-Count Formula
Watch-winding stop form 3 explained — how this ratchet-and-pawl limit prevents mainspring overwinding in horology, with formulas, tolerances, and a worked example.
Watch-winding Stop (form 2) diagram
Watch-winding Stop (form 2): Mechanism, Parts & How the Geared Stop-Work Limits Winding Turns
Watch-winding stop form 2 explained: how the geared stop-finger limits mainspring winding turns, design rules, and worked example for horology builds.
Vibrating-arm Pawl Ratchet diagram
Vibrating-arm Pawl Ratchet Mechanism: How It Works, Parts, Diagram and Indexing Uses
How a Vibrating-arm Pawl Ratchet converts oscillating motion into one-way indexed rotation, with formulas, worked examples, and packaging-line applications.
Two-pawl Continuous Rectilinear Ratchet Bar diagram
Two-pawl Continuous Rectilinear Ratchet Bar Mechanism Explained: How It Works, Parts, Uses & Formula
How a two-pawl continuous rectilinear ratchet bar works, with formulas, worked example, and real applications in lifting jacks, presses, and stage rigging.
Two Ratchet-arc Nearly Continuous Rotary diagram
Two Ratchet-arc Nearly Continuous Rotary Mechanism: How It Works, Parts, Diagram & Uses Explained
How a two ratchet-arc nearly continuous rotary mechanism delivers near-uniform output from oscillating input — sizing, formulas, and worked examples for industrial use.
Treadles and Chain to Ratchet Wheel diagram
Treadles and Chain to Ratchet Wheel Mechanism: How It Works, Parts, Diagram and Uses
How a foot treadle and chain drive a ratchet wheel for intermittent indexing — geometry, formulas, and a worked example for a small workshop hoist.
Tilt-hammer Motion (cam Wiper) diagram
Tilt-hammer Motion (cam Wiper) Mechanism: How It Works, Parts, Diagram, Formula and Calculator
Tilt-hammer motion uses a rotating cam wiper to lift and drop a pivoted hammer for stamping, forging, and ore crushing. See formulas, specs, and worked...
Tappet-arm to Ratchet-wheel Intermittent diagram
Tappet-arm to Ratchet-wheel Intermittent Mechanism: How It Works, Parts, Diagram, and Uses
How a tappet-arm to ratchet-wheel intermittent mechanism converts continuous rotation into precise step indexing on counters, presses, and packaging machines.
Tappet-and-stud Counter Wheel diagram
Tappet-and-stud Counter Wheel Mechanism Explained: How It Works, Parts, Diagram and Uses
Tappet-and-stud counter wheels track revolutions on industrial machines using a cam-driven stud advancing a notched wheel — sizing, tolerances, and worked example.
Tappet Stud and Ratchet for Revolution Counter diagram
Tappet Stud and Ratchet for Revolution Counter Mechanism Explained: How It Works, Parts, Diagram, Uses
How a tappet stud and ratchet revolution counter works — the once-per-rev pin advances a count wheel one tooth, used on machine tools, meters, and...
Star-wheel Ratchet diagram
Star-wheel Ratchet Mechanism: How It Works, Parts, Diagram, and Indexing Formula Explained
Star-wheel Ratchet mechanism explained — how the spring-loaded detent indexes a pointed rotor one step per stroke, with formulas, real machine-shop examples, and design rules.
Single-tooth Small Wheel to Large Intermittent diagram
Single-tooth Small Wheel to Large Intermittent Mechanism: How It Works, Parts, Formula & Uses Explained
How a single-tooth driver indexes a large count wheel one notch per revolution — geometry, sizing math, and a worked sawmill tally counter example.
Single-tooth Small Driver, Lock by Rim diagram
Single-tooth Small Driver, Lock by Rim Mechanism Explained: How It Works, Parts, and Diagram
Single-tooth small driver with rim lock: how this intermittent counter wheel indexes one notch per input revolution, with formulas, examples, and trade-offs.
Single-tooth Driving Wheel and Notched Wheel diagram
Single-tooth Driving Wheel and Notched Wheel: How This Intermittent Indexing Mechanism Works
How a single-tooth driving wheel and notched wheel produce 1-step-per-revolution intermittent motion for counters, score reels, and dispensers — with formulas and worked examples.
Reversing Ratchet diagram
Reversing Ratchet Mechanism: How It Works, Parts, Diagram, and Tooth-Count Formula
How a Reversing Ratchet flips drive direction without rotating the input shaft. Pawl geometry, lockup angles, and real uses in winches, drills and wrenches.
Reciprocating to Intermittent Circular via Pawl diagram
Reciprocating to Intermittent Circular via Pawl Mechanism: How It Works, Parts, Diagram, and Uses
How a reciprocating pawl converts back-and-forth motion into one-way intermittent rotation — design rules, formulas, and worked examples for counters and indexers.
Ratchet-wheel Stops diagram
Ratchet-wheel Stops Mechanism Explained: Parts, Tooth Geometry, Holding Torque Formula and Uses
Ratchet-wheel stops lock rotation in one direction for hoists, winches, and indexers. See how the pawl geometry, tooth pitch, and holding load all interact.
Rack-rod From Mutilated Spur-gear diagram
Rack-rod From Mutilated Spur-gear Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses
How a mutilated spur-gear drives a rack-rod for intermittent linear motion — geometry, formulas, worked example, and packaging-line applications.
Rack and Pawl diagram
Rack and Pawl Mechanism: How It Works, Diagram, Parts, Formula, and Real-World Uses
How a Rack and Pawl mechanism converts reciprocating motion into one-way linear indexing — design rules, formulas, and real applications in lift jacks and presses.
Otis Safety-stop for Hoisting Platform diagram
Otis Safety-stop for Hoisting Platform: How the Ratchet-and-Pawl Mechanism Works
How the Otis safety-stop works on hoisting platforms — pawl-and-ratchet geometry, rope-tension trigger, and named elevator applications from 1853 to today.
Mutilated Wheel-pinion Intermittent diagram
Mutilated Wheel-pinion Intermittent Mechanism: How It Works, Parts, Formula & Uses Explained
How a mutilated wheel-pinion intermittent mechanism converts continuous rotation into timed dwell-and-step motion in counters, registers, and indexing drives.
Mutilated Bevel Gear for Opposing Intermittent diagram
Mutilated Bevel Gear for Opposing Intermittent Motion: Mechanism, Diagram & Calculator
Mutilated bevel gear for opposing intermittent motion drives two output shafts in alternating dwell-and-rotate cycles. See math, tolerances, and real builds.