escape wheel

The rotating notched wheel periodically engaged and disengaged by the anchor in an escapement.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

escape wheel

(Horology) horology a toothed wheel that engages intermittently with a balance wheel or pendulum, causing the mechanism to oscillate and thereby moving the hands of a clock or watch. Also called: scapewheel

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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Noun

escape wheel - gear that engages a rocking lever

escapement - mechanical device that regulates movement

cogwheel, gear, gear wheel, geared wheel - a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion

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References in periodicals archive ?

In the verge, the escape wheel, the one at the top of the movement, sits at right angles, horizontally to the rest.

A genuine tocking point; Clocks are like old cars - if you don't know what you are doing, they'll just let you down. Always ask an expert

The cage of the tourbillon containing the escape wheel, anchor, and balance wheel rotates in 40 seconds.