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
uctor 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 the bars by rivets or silver solder. Barrel… … Figs. 375 and 376.—Single layer and double layer barrel winding. Barrel winding is a methodof arranging the ends of armature coils as they pass from one pole to the next, in which,instead of using involute or butterfly connections, V-shaped end connections are used whichlie on a cylindrical…
Electrical engineering
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