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 128
et it will, perhaps, bepreferable to base it upon a more moderntype of motor, such 5tS the machine sho^vnin Fig. 21. This machine is of the hipolartype. It has bwo field poles N and aS^,produced by the magnetizing coils J/, M.Between these poles the a: mature A^ isfree to revolve. The comimitator… … Fig. 21.—Bipolar Electric Motor. in such a manner as to produce in it t\Y0poles, n and s^ midway between the polesN and S^ of the field magnet. The arma-ture is, therefore, pulled around in the THE TRAlSrSMISSION OF POWER. 121 direction of the arrow, and, as it revolves,the current entering the…
Electric motors
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