Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 833
e ; the number of teeth in the wheels and pinions which connect it with the centre-wheel being ad-justed accordingly. In a clock now before the author, the centre-wheel has 84 teeth. This turns apinion of 7 leaves, which nmst therefore revolve 12 times as fast, or once in every five minutes.… … therefore, 11 times in five minutes, or once in somewhat less than half aminute. It has 32 teeth ; and the pendulum, being not quite eight inchesong, allows each to escape in rather less tlian half a second. Clock-escapanents.—The construction of the anchor-pallet escapement,bo called from its…
Mechanical engineering · Mechanics · Engineering
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