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Chris -- 2011-03-08

#1 2006-06-03 23:13:30

From: Winchester Massachusetts
Registered: 2005-10-25
Posts: 674

'ratchet and paw' for 'ratchet and pawl'

The ratchet and pawl mechanism consists of a notched wheel (the ratchet) and an arm-like device (the pawl) that engages the notches on the ratchet, so as to permit rotation in one direction only. Some pawls look vaguely like paws. Examples:

This possibility is provided by the special ratchet-and-paw device available on the selector axle.

... a detailed perspective view, from an lower position, depicting the operation and interaction of the ratchet and paw mechanism.

ratchet and paw vs. diode. rectification of rotation vs. current. … lesung.pdf

In order to illustrate that the second law of thermodynamics cannot be violated, Feynman introduced an imaginary ratchet-and-paw…

It used a primitive ratchet and paw transmission to turn a feed conveyor screw.



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