ratchet wheel

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ratch′et wheel`

art at ratchet

a wheel, with teeth on the edge, into which a pawl drops or catches, as to prevent reversal of motion or convert reciprocating motion into rotatory motion.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ratchet wheel - toothed wheel held in place by a pawl or detent and turned by a leverratchet wheel - toothed wheel held in place by a pawl or detent and turned by a lever
rachet, ratch, ratchet - mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
wheel - a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)

ratchet wheel

nruota dentata
References in periodicals archive ?
Tenders are invited for Adjusting Screws And Ratchet Wheel For Brake Cylinder Type Jsl To Wsf Part No B79489/1 Or Equivalent Of M/S Recon Engg Or M/S Escorts Ltd.
com)-- An innovative new tool designed to greatly facilitate a common automotive repair task, the Ratchet Wheel, has been developed by Bradley Hamilton of Cincinnati, Ohio.
subcompact, those characteristics have to be considered for every little part, all the way down to things like the ratchet wheel in its seatbelt retractor system.
A ratchet is a simple mechanical concept: To allow motion in one direction but not the other, a ratchet wheel contains teeth, between which a small lever, called a pawl, fits.