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 209
eson the spider arms, as in Fig. 199. The sectional view shows themethod of holding the lamina together by means of bolts and end-plates, also the extension R R for supporting the end-connectionsof a barrel-winding. 180 DESIGN 171 The hubs of armature spiders, in order to facilitate fitting… … Fig. 199. Mounting of Large Armature Core Figs. 201 and 202 show a spider and other features of construc-tion of a large machine. The rim is cut into six pieces, each of whichhas four dovetail notches. If cast in one piece, trouble might arisefrom unequal strains in themetal, due to contraction.…
Electrical engineering
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