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 362
Fig. 118.—No. 1 Fan Outfit for Arc Circuits(Constant Currents). The motor described in Fig^. 114 is ex-posed to view. Frequently, however, themotor is inclosed in a cast-iron case, asshown in Fig. 115. In such cases specialattention has to be paid to the brushes and 354 THE ELECTRIC MOTOR AISTD… … Fig. 119.—Ceiling Fan and Motor. brusli employed in tlie motor of Fig. 115.Here, it will be seen that carbon cylindri-cal brushes are employed which are main- THE TKA]SrSMISSIO:N OF POWEE. 355 tained in pressure upon the commutator bythe action of a spiral spring. Fig. 117, shows an…
Electric motors
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