scape wheel

American  

noun

Horology.

1. escape wheel.

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Etymology

Origin of scape wheel

First recorded in 1815–25

Example Sentences

Scape′-wheel, the wheel which drives the pendulum of a clock.

From Project Gutenberg

The Balance Arbor Pivots and Bearings, as well as those of the lever and scape wheel where their pivots run in capped jewels, deserve particular attention.

From Project Gutenberg

Placing our dividers on A B the center distance of ’scape wheel and  pallets, we plant them on A and construct c c; thus we will have the acting length of fork and its path.

From Project Gutenberg

The acting length of fork is to be equal to the distance of centers of scape wheel and pallets; the impulse angle is to be 28°; freedom from dart and safety, roller is to be 1¼°, and for dart and corner of crescent 5°; freedom for ruby pin and acting edge of fork is to be 1¼°; width of slot is to be ½ the total motion, or 10¼ ÷ 2 = 5⅛°; shake of ruby pin in slot = ¼°, leaving 5⅛ − ¼ = 4⅞° for width of ruby pin.

From Project Gutenberg