Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 150
Fig. 33. Main and Interpole Field Coils are pressed firmly between these washers by flat steel springsplaced between them and the case; thus they are not permitted … Fig. 34. Main Pole and Interpole Complete to vibrate and injure their insulation. A field coil is shown in Fig.33 and a coil mounted on a pole piece with the flat steel spring inplace is shown in Fig. 34.
Electrical engineering
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