Hood, Grant · Kansas City, Mo. : Kansas City Jeweler and Optician · leaf 56
number of vibrations the watch should have bydividing the number of teeth in the fourth wheel by thenumber of leaves in the escape pinion, and multiplying this 52 WHEELS AND PINIONS. result by twice the number of teeth in the escape wheel, forexample: The fourth wheel has 80 teeth. The escape wheel… … Figurs II. start from some point that makes a definite number of revo-lutions in a given time, as the center wheel, which makesone revolution each hour. In the article on Hair Springsand Springing, this will be more fully explaineS. The train of a watch is so sensitive, and the motivepower so very…
Clocks and watches
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