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Watch and clock escapements; (1904)

Philadelphia, The Keystone · leaf 159

An illustration from Watch and clock escapements;, 1904, leaf 159
Figs. 145 and 146 Fig. 147 tooth e is just about to impinge upon the advancing pallet P.This it does, and will at first, through the impulse received from thetooth d be forced back by the momentum of the pallet, that is,surfer a recoil ; but on the return journey of the pallet P, thetooth e will…

Clocks and watches

Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.

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