9, is made with a pair ofmagnets and a vibrating armature. The main spring iswound by the forward and backward motion of the arma-ture, one end of the connecting rod, 8, being attachedto a lug of the armature, 2, and the other to the windinglever, 10. This lever has spring ends, to avoid shock… … Fig. 139 THE MODERN CI>OCK, 407 The contact for operating the motor is made by the brassspiral spring, 3, which is attached to the insulated stud, 4,and the platinum pin, 5, which is carried on a spring at-tached to the clock plate. As the armature moves forwardthe break pin, A, in the end of…
Clocks and watches
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