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Ratchet   Listen
noun
Ratchet  n.  
1.
A pawl, click, or detent, for holding or propelling a ratchet wheel, or ratch, etc.
2.
A mechanism composed of a ratchet wheel, or ratch, and pawl. See Ratchet wheel, below, and 2d Ratch.
Ratchet brace (Mech.), a boring brace, having a ratchet wheel and pawl for rotating the tool by back and forth movements of the brace handle.
Ratchet drill, a portable machine for working a drill by hand, consisting of a hand lever carrying at one end a drill holder which is revolved by means of a ratchet wheel and pawl, by swinging the lever back and forth.
Ratchet wheel (Mach.), a circular wheel having teeth, usually angular, with which a reciprocating pawl engages to turn the wheel forward, or a stationary pawl to hold it from turning backward. Note: In the cut, the moving pawl c slides over the teeth in one direction, but in returning, draws the wheel with it, while the pawl d prevents it from turning in the contrary direction.






Collaborative International Dictionary of English 0.48








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"Ratchet" Quotes from Famous Books



... wheels off and put them on wrong, Rad," he said. "The ratchet and pawl are reversed. This mower would work backwards, if ...
— Tom Swift and his Motor-cycle • Victor Appleton

... the days when men swooned over the ratchet-drill and the hand-forge, and where they fell they had leave to lie unless their bodies were in the way of their fellows' feet. And so, patch upon patch, and a patch over all, the starboard supporting-column was clouted; but when they thought all was secure, ...
— The Day's Work, Volume 1 • Rudyard Kipling

... him out of a machine. By the side of a machine of one sort or another, whether it be of steel rods and wheels or of human beings' souls, he must find his place in the great whirling system of the order of mortal lives, and somewhere in the system—that is, the Machine—be the ratchet, drive-wheel, belt, or spindle under infinite space, ordained for him to be from the beginning ...
— The Voice of the Machines - An Introduction to the Twentieth Century • Gerald Stanley Lee

... ordinary way of conductivity of current, which means stretching the wire from one to the other. An armature is arranged so that when a thread is broken or a sliver or a strand of roving, the armature drops into a ratchet wheel; this ratchet wheel is made to revolve by the belt, and whenever it is impeded or stopped in its course it acts upon mechanism which throws the driving belt of the machine upon the loose pulley. Electrical contact ...
— Scientific American Suppl. No. 299 • Various

... closely, that spring and early summer, she was conscious of a change, a sort of loosening, something in him had given way—as when, in winding a watch, the key turns on and on, the ratchet being broken. Yet he was certainly working hard—perhaps harder than ever. She would hear him, across the garden, going over and over a passage, as if he never would be satisfied. But his playing seemed ...
— Forsyte Saga • John Galsworthy

... come from the body of the automaton, and was unmistakably a whirring of wheels. It gave me the impression of a disordered mechanism which had escaped the repressive and regulating action of some controlling part—an effect such as might be expected if a pawl should be jostled from the teeth of a ratchet-wheel. But before I had time for much conjecture as to its nature my attention was taken by the strange motions of the automaton itself. A slight but continuous convulsion appeared to have possession of it. In body and head it shook like a man with palsy or an ague chill, and the motion ...
— Can Such Things Be? • Ambrose Bierce

... sufficient to adjust them. The vertical arms, B 1 and B 2, are cast each with a round foot by which the arms are attached to the square boxes E 1 and E 2, which are fitted to the $V$ slides on the horizontal beds A 1 and A 2, and are adjustable thereon by means of screw and ratchet motion F 1 and F 2. Each of the square boxes has cast on it a small arm G 1 and G 2, carrying studs upon which run pinions gearing into the circular racks at the foot of the vertical arms. The square boxes have each a circular groove turned in the top to receive the bolts ...
— Mechanical Drawing Self-Taught • Joshua Rose



Words linked to "Ratchet" :   spiral ratchet screwdriver, progress, click, march on, mechanical device, ratchet wheel, move on, ratchet down, pawl, rachet, go on, dog, ratch, ratchet screwdriver, rachet up, pass on, advance



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