Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 208
Fig. 195. Forms of Armature Core-Disks Fig. 196. Fig. 197 shows the disks held together and to a skeleton pulley, orspider, by bolts passing through them, the spider being keyed to theshaft. The objection to this construction is the fact that the bolt-holes reduce the effective area of the core,…
Electrical engineering
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