Recent Blogs
Lever Windlass Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses
Compare the ideal lever-to-drum radius ratio and reciprocal hand-to-rope travel. The animation shows rope take-up and the holding pawl during handle reset.
Chain and Pulley (form 1) Mechanism Explained: How It Works, Diagram, Parts and Uses
See alternating-plane chain links engage a toothed wheel. Separately compare a load with hand pull to calculate the overall force ratio a complete system would...
Pawl Lift: Two-Pawl Rack Indexing Sequence
Explore a two-pawl rack lift. Calculate ideal indexed travel and elapsed time from rack pitch, completed raising strokes and stroke cadence.
Windlass Mechanism Explained: How It Works, Parts, Formula, Diagram, and Calculator
Explore the ideal force balance between a windlass crank and drum. Adjust fixed radii and load mass; the results do not establish a lifting capacity.
Crab Winch Mechanism Explained: How a Double-Reduction Hand Winch Works, Parts and Uses
Explore a double-reduction hand winch. Calculate both gear-stage ratios and drum speed, and see why hand-force advantage also depends on handle and drum radii.