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 1208
ntingthe rear connections, and the lines on the inside of the circlethe front connections. Armature Winding 1179 Fig. 526 shows this scheme worked out for the armatureshown in Pig. 524. That the armature must, have an evennumber of conductors can be seen by figures similar to thatshown in Fig. 527.… … Fig. 527 With a bi-polar fields and a one-layer winding, it will be!remembered that adjacent commutator segments were con-inected to every other conductor, the even numbered con-ductors being taken as returns for the odd numbered con-ductors. Similarly in a multi-polar armature, our spacingmust be…