International Library of Technology · Scranton, International Textbook Co. · leaf 400
e disks in one piece. Insuch cases, again, the disksare made in segments, andare held in place either bybolts passing through themor by dovetail projections fit-ting into grooves in an ex-tension of the armature spiderarm. This construction willFig. icoo. be understood by referring to Fig. 1600. In… … ARMATURE SPIDERS. 4101. Disks for revolving armatures are usually sup-ported in spiders similar to those used for direct-currentmultipolar armatures. These spiders are made of cast ironor steel, and are necessarily strongly constructed. They 2766 DESIGN OF ALTERNATING should be so made as to clamp…
Electrical engineering
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