Recent Blogs
Chain and Pulley (form 3) Mechanism: How Pocketed Sheave Hoists Work, Parts, Diagram and Uses
Chain and Pulley form 3 drive explained — how the hybrid chain-over-sheave system handles slip-free torque transfer in conveyors, hoists, and stage rigging.
Lever Windlass Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses
Learn how a lever windlass multiplies force to lift heavy loads. Engineering breakdown, formulas, and real applications in marine, mining, and rigging trades.
Chain and Pulley (form 2) Mechanism Explained: How It Works, Parts, Formula and Uses
Chain and pulley drives combine a roller chain with a pulley wheel to lift loads in elevators, theatre rigging and material handling. See the formulas...
Chain and Pulley (form 1) Mechanism Explained: How It Works, Diagram, Parts and Uses
Chain and Pulley drives transmit torque between shafts using a chain riding on a pulley or sprocket. Learn how to size, spec and diagnose them...
Pawl Lift Mechanism Explained: How It Works, Parts, Formula, Diagram and Uses
Pawl Lift mechanisms convert reciprocating motion into stepped lifting in jacks, hoists and stamping presses. See the formula, worked example and design rules.
Windlass Mechanism Explained: How It Works, Parts, Formula, Diagram, and Calculator
How a Windlass works — drum, axle, pawl and crank geometry that lifts heavy loads with low input force. Used in wells, ships, and recovery...
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...