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A ratchet featuring a gear (1) and pawl (2) mounted on a base (3) Animation of ratchet gear rack (green) and pawl (pink). Red arrows indicate which way force is applied to the gear rack. The rack and pawl are both restricted to only linear movement (not shown).
A pawl is used in an anchor windlass to prevent a free-spooling chain by grabbing and snubbing an individual link. Similar mechanisms include a Devil's claw, or a claw and dog. Ratchet A pawl is used in combination with a ratchet gear in socket wrenches, bicycle freehubs, winches, ratchet reels for diving, fishing, and many other applications ...
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Some manufacturers utilize a holding pawl design to keep the wrench locked in position prior to each power stroke, while others use varying designs, which have different faults and advantages. Hydraulic torque wrenches typically offer accuracy of ±1-3% and have a high degree of repeatability making them well suited to applications where large ...
Since the 1870s, in an improved version the pendulum drove a ratchet wheel via a pawl on the pendulum rod, and the ratchet wheel drove the rest of the clock train to indicate the time. The pendulum was not impelled on every swing or even at a set interval of time—it was only impelled when its arc of swing had decayed below a certain level.
Socket set with ratchet (above), four hex sockets and a universal joint. A socket wrench (or socket spanner) is a type of spanner (or wrench [1] in North American English) that uses a closed socket format, rather than a typical open wrench/spanner to turn a fastener, typically in the form of a nut or bolt.
The ratchet mechanism on the head of a cable tie Cable ties used to attach shade cloth to scaffolding at a construction site in Singapore. The most common cable tie consists of a flexible nylon tape with an integrated linear ratchet gear rack, and on one end a pawl within a small open case. Once the pointed tip of the cable tie has been pulled ...
A Shimano Dura-Ace freehub. A freehub is a type of bicycle hub that incorporates a ratcheting mechanism.. A set of sprockets (called a "cassette") is mounted onto a splined shaft of the freehub to engage the chain.