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Watch and clock escapements; (1904)

Philadelphia, The Keystone · leaf 116

An illustration from Watch and clock escapements;, 1904, leaf 116 — the half shell until the action of the balance springhas brought the lip of the cylinder so that the impulse face of thetooth commences to impart motion or power to the balance. Most writers on horological matters term this act the lift,which name was no doubt acquired when escapements were… … i7t crj in M K A SI G Fig. 134 Fig. 123

Clocks and watches

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