Recent Blogs
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.
Differential Pulley Mechanism: How It Works, Diagram, Formula and Uses Explained
Trace the endless chain in a Weston differential pulley. Compare upper-wheel diameters and calculate signed hook travel and the ideal force ratio.
Yale-weston Differential Gear Hoist Mechanism Explained: How It Works, Diagram, Formula, and Uses
Explore the differential chain-hoist principle. Compare ideal lift per turn, radius difference and hand pull using an assumed efficiency.
Yale Duplex Hoist Mechanism Explained: Weston Brake, Duplex Pawls, Mechanical Advantage
Explore an ideal hand-chain-hoist model. Compare mechanical advantage, assumed hand pull and chain-fall load; results do not establish a lifting rating.