Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1198
aces of thepole pieces, together with the armature conductors, willshow in a plainer manner the relations existing between thecoils and their connections. The development of the arma-ture in Fig. 514 is shown in Fig. 515, and is that view whichwould be obtained were a person to take a position… … Fig. 515 In the figure the full lines denote the active conductors,and the dotted lines the inactive conductors on the insideof the armature ring. The small squares at the top repre-sent the commutator segments, and the shaded cross sectionsthe pole pieces. The arrows indicate the direction of…
