inclination that it will have by theforward movement of the lever, M, will on the 3Qth bringthe pin, i, in contact with the bottom of the notch, just asthe lever, M, has accomplished two-thirds of its forwardmovement, so the last third will be employed to make thewheel 31 advance one tooth, and the… … Fig. 119. Change Mechanism behind the Four Year Wheel in Fig. 118 lowest of the four deep notches, that one for February ofleap year, the upper end of the arm, N, will take a positionlower still, and on the 29th the pin, i, will be met by thebottom of the notch, just as the lever has made one-third…
Clocks and watches
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