eatest 94 Watch and Clock Escapements. resistance from the hairspring. We find by analysis of our draw-ing that parallelism takes place about the time when the tooth hasthree degrees of angular motion to make, and the pallet lacks abouttwo degrees of angular movement for the tooth to escape. It… … h \ \ Fig. 92 the escape wheel in its entire effort passes through eleven degrees ofangular motion, while the pallets and fork move through ten degrees.The student will thus see we have arranged to give the train-poweran advantage where it is most needed to overcome the opposinginfluence of the…
Clocks and watches
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