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Watch and clock escapements; (1904)

Philadelphia, The Keystone · leaf 116

An illustration from Watch and clock escapements;, 1904, leaf 116 — f 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… … JFig. 136 Fig. 137 said cylinder must turn or revolve a little in the direction of thearrow j, and also that the next succeeding tooth of the escape wheelwill engage the cylinder on the outside of the half shell, falling onthe dead or neutral portion of said cylinder, to rest until the hair-spring…

Clocks and watches

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