Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 142
e gear-wheel onthe crank shaft, meshing with a pinion on the armature sfiaft, theratio of speed in rotation between the two shafts being about as 120 AMERICAN TELEPHONE PRACTICE. one to five. The Holtzer-Cabot Company introduced, and onceused to a large extent, a chain-drive, by means of which a… … FIG. 91.-CHAIN-DRIVEN MAGNETO GENERATOR. but this has been almost entirely superseded by the direct meshingspur gears, a detail of which is shown in Fig. 92. In this, both thelarge gear and pinion are of brass, having vvide faces cut to securesmooth running. In order to prevent the jerk occasioned…
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