Recent Blogs
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 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.
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.
Quadrant Catch Hand-gear (form B) Mechanism Explained: How It Works, Parts, and Uses
Quadrant catch hand-gear form B explained — how the spring-loaded pawl locks elevation arcs on field guns and survey theodolites, with formulas and a worked...
Diagonal Catch Hand-gear (raising Piston): Mechanism, Parts, Diagram and Formula Explained
How a diagonal catch hand-gear raises a piston: lever ratios, pawl engagement, real numbers, and a worked example for foundry and press-shop lifting rigs.
Click-driven Cog-wheel Feed Mechanism: How It Works, Parts, Formula and Indexing Uses Explained
Click-driven cog-wheel feed explained — how the pawl indexes the gear one tooth per stroke, where it's used in printing and feeders, plus a worked...
Crab Winch Mechanism Explained: How a Double-Reduction Hand Winch Works, Parts and Uses
Crab winch explained — how the double-gear hand winch multiplies pulling force, where riggers and theatres still use them, and how to size one for...
Colt Revolving Fire-arm Cylinder Mechanism: How It Works, Parts, Timing Diagram & Uses
How the Colt Revolving Fire-arm Cylinder indexes, locks and fires — with timing math, tolerances, and real examples from firearms and indexing-machine design.
Combined Ratchet and Hand-feed Gear: How This Shaper and Planer Feed Mechanism Works
Combined ratchet and hand-feed gear explained — how the dual-mode feed shaft drives planers and shapers, with formulas, tolerances, and a worked machine-shop example.