Atkinson, Philip. [from old catalog] · New York, The Century co. · leaf 178
f the same construction werejoined together, end to end, in such a manner that thefield poles in one come opposite the spaces between fieldpoles in the other, so that the action of each alternately ELECTRIC MOTORS. 155 supplements that of the other, as the coils in each sepa-rate field are… … Fig. 67 under the cars, an iron or steel armor, water-tight up tothe axle, has been found necessary, and is easily providedby employing, for this purpose, the connecting yoke towhich the core projections of a bipolar or multipolarfield-magnet are attached, as shown in Fig. 67. Thisarmor is about…
Electricity
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