International Library of Technology · Scranton, International Textbook Co. · leaf 465
th a shoulder g, which clampsagainst a washer h. The stud is insulated from the rocker-arm by a heavy hard-rubber bushing / and washers b. The 2830 DESIGN OF ALTERNATING hard-rubber bushing / is let into the washers b, as shown,in order to break up the path by which the current tendsto jump from… … Fig. 1651. which is sometimes used for mounting and insulatingbrush-holder studs. A hard-rubber tube a fits tightlyover the stud b and completely covers it except at the pointswhere the brush holders and cable connections are placed.The brush-holder stud is clamped to the rocker-arm, asshown, by…
Electrical engineering
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