Mechanisms — hand chain block

Recent Blogs

Yale Duplex Hoist diagram
Yale Duplex Hoist Mechanism Explained: Weston Brake, Duplex Pawls, Mechanical Advantage

Posted by Robbie Dickson on

How a Yale Duplex Hoist works — the dual-pawl ratchet, lever travel, and load math behind hand chain hoists used in mills, foundries, and rigging...
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Harrington Chain Hoist diagram
Harrington Chain Hoist Mechanism: How the Weston Load Brake and Planetary Gear Reduction Work

Posted by Robbie Dickson on

How a Harrington chain hoist works — load brake, pawl-and-ratchet, planetary gearing — sized for steel shops, theatres, and HVAC rigging crews.
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