Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1189
f current^ it is evident that thoseconductors which lie on the inner side of the iron ring serveno useful purpose so far as the generation of current is con-cerned. Numerous attempts have been made to utilize thispart of the winding by making the pole pieces extend aroundthe ring in such a manner… … Fig. 513 The dead wire on the inside of the armature constitutesone of the greatest disadvantages of this class of windingsand this is especially the case where the armature carriesheavy currents. In arc lighting machines^ where a compara-tively small current is used^ this loss is not of so great…