The electric motor and the transmission of power (1906)
Houston, Edwin J. (Edwin James), 1847-1914, Kennelly, Arthur E. (Arthur Edwin), 1861-1939, joint author · New York : McGraw Pub. Co. · leaf 354
Fig. 110.—Gatling Gux. Operated by ElectricMotor. exceedingly convenient means for drivingsuch drills, when electric power is avail-able. Their use in mining districts has 346 THE ELECTRIC MOTOR AXD come into favor, owing to the fact that thesolid core of the rock mined is broughtout by this drill.… … Fig. 111.—Electric Diamond Prospecting Drill. of this machine with a continuous-currentelectric motor applied to driv^e it. Electric motors are often applied both THE TRANSMISSION OF POWER. 347 to elevators in buildiugs, and to hoists inmines. In the latter case, the ease with
Electric motors
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