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- · New York, T. Audel · leaf 217
PlG. 1,478.-—A style of disc largely used for armature cores. The teeth are provided withdovetail grooves near the circumference. After the coil is inserted in a groove, a woodenwedge is driven in the groove which encloses the coil and secures it firmly in positionThis obviates the necessity of… … SEGMENTAL CORE DISCS(STAGGERED) Fig. 1,480.—Construction of large stationary armature; view showing section of core andframe. The core discs are in segments and are attached to the frame by dovetail jointsas shown. The joints are staggered in building up the core, that is, they are overlappedso as…
Electrical engineering
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