Hood, Grant · Kansas City, Mo. : Kansas City Jeweler and Optician · leaf 43
ission of power. If the last wheelhad 20 teeth, and the first one had 40 teeth, then the last onewould make two revolutions to one of the first. Figure 1 illus-trates such a sample train. While A makes one revolution, B would make two, but the 39 MODERN METHODS IN HOROLOGY. speed of the… … Figure i. B less that wasted by friction, a force ever present and one thewatchmaker tries in so many ways to overcome. In a Compound train, the kind used in watches and clocks,the first wheel transmits its power to a pinion following it;upon this pinion is staked a wheel, which in turn…
Clocks and watches
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