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 116
per-manent magnet, when the commutatoragain reverses the direction of the current.On this account the pull will not be uni-form in such a machine at all positions ofthe electromagnet. Moreover, if the ma-chine were to stop with its electromagneticpoles vertically over the permanent mag-netic poles,… … Fig. 18.—Elias Motor. in 1842 designed the motor shown inFig. 18. Here, two coaxial iron rings aresupported in the same vertical plane. The THE TPvAl^SMISSION OF POWER. 109 outer rino; is fixed and the inner rino^ ismovable about its axis. In this form ofmotor it ^vill be noticed that, instead…
Electric motors
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