Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 837
me ; 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 must therefore revolve 12 times as fast, or once in every five minutes.… … by a pin!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 loss than half a second. Clock-escapements.—The construction of the anchor-pallet escapement,bo called from…
Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
