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 1215
an seC;, by referring to thefigure^ that the last turn of the second layer comes in veryclose contact with the first turn of the first layer. The samecondition will exist with every other layer in the same coil.The result of this is a great liability to abrasion in the firstplace^ further a great… … Fig. 531 armature wires is very thin^ economy of space being a greatconsideration in all cases. By the above method of winding another great disadvan-tage is introduced. The lowest coil of wire being so tightlyhemmed in^ and at the same time there being considerablenecessity for handling the wire,…