Henry and Hora's modern electricity; a practical working encyclopedia (1915)
Henry, James. [from old catalog], Hora, Karel Jan, 1881- [from old catalog] joint author · Chicago, Laird & Lee, inc. · leaf 176
ELECTRICAL ENGINEERING 173 … Fig. 58. The Siemens alternating current dynamo (see fig. 58) hastwo opposing crowns of cylindrical electro-magnets, the facepole-pieces being of oppositepolarity. The armature coilsin fig. 58 are only indicated.The lines of force pass frompole to pole, straight acrossthe armature space. The…
Electrical engineering
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