Mechanisms — ratchet pawl

Recent Blogs

Lever and Ratchet diagram
Lever and Ratchet Mechanism: How It Works, Parts, Diagram, and Real-World Uses Explained
Lever and ratchet mechanism explained — how it amplifies force, holds load between strokes, and powers winches, jacks, and tensioners in the field.
Watch-winding Stop (form 3) diagram
Watch-winding Stop (form 3) Mechanism: How It Works, Parts, Diagram, and Turn-Count Formula
Watch-winding stop form 3 explained — how this ratchet-and-pawl limit prevents mainspring overwinding in horology, with formulas, tolerances, and a worked example.
Bent-spring Driver with Strong-spring Catch diagram
Bent-spring Driver with Strong-spring Catch: How the Mechanism Works, Parts, Formula, and Uses
How a bent-spring driver with strong-spring catch produces single-step intermittent motion in counters, ratchets, and tally mechanisms — design rules and worked example.
Intermittent Motion diagram
Intermittent Motion Mechanism Explained: Geneva, Ratchet & Cam Indexer Parts, Uses & Diagram
Intermittent motion converts continuous rotation into stop-start steps for indexing, counting, and assembly. See formulas, real machine examples, and design rules.
Quadrant Catch Hand-gear (form A) diagram
Quadrant Catch Hand-gear (form A) Mechanism: How It Works, Parts, Diagram and Uses Explained
Quadrant Catch Hand-gear Form A explained — how the toothed quadrant lever locks naval gun elevation, with diagrams, formulas and restoration examples.
Windlass Grip Pawl diagram
Windlass Grip Pawl Mechanism: How It Works, Self-Locking Geometry, Parts, Uses and Calculator
How a Windlass Grip Pawl locks anchor chain under load, why the geometry matters, and where it shows up in marine winches, capstans and offshore...
Intermittent Reciprocating Motion diagram
Intermittent Reciprocating Motion Mechanism: How It Works, Diagram, Parts, Formula and Uses
Intermittent reciprocating motion explained — how it works, formulas, real machine examples from packaging to automotive, plus a worked sizing example.
Intermittent Rotary Motion diagram
Intermittent Rotary Motion Mechanism: How Geneva Drive Indexing Works, Parts, Formula and Uses
Intermittent Rotary Motion converts continuous input into stop-start output. Learn the mechanics, formulas, and real applications in packaging and indexing.
Windlass diagram
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...