International Library of Technology · Scranton, International Textbook Co. · leaf 100
are fitted.It is cheaper to use through bolts, as shown in the figure,than to put in cap-screws, which would require that one ofthe holes be drilled smaller and tapped. The arms should DYNAMO-ELECTRIC MACHINE DESIGN. 2475 be faced at those parts where the head of the bolt and thenut are to bear.… … Fig. 1368. accomplished by using a square-headed bolt and so shapingthe spider arm at b as to almost touch the fiat side of thebolt-head. 3703. In order to prevent, as far as possible, the gen-eration of eddy currents in the spider rings, these may becut away on the inner side, as at <f, without…
Electrical engineering
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