Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 127
After insulating the slots, the winder begins at any convenient slot, and insertsthe coils as shown. Before he can fill all the slots, some of the first coils must be raised andthe last ones inserted underneath. There is not much difference between barrel andevolute winding and one style may be… … FlG. 374.—Siemens bar armature; end view. Each inductor in the form of a bar is connectedto the next by means of two evolute spiral copper strips, one bending inwardly, the otheroutwardly, their junction being in some cases secured to a block of wood upon the shaft.Their outer ends are attached to…
Electrical engineering
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