International Library of Technology · Scranton, International Textbook Co. · leaf 517
the regular brake shoes and in additionalso operates a pair of shoes that press on the track betweenthe truck wheels. Fig. 81 shows the general arrangementof the brake. «, a are the track shoes and /;, // the regularbrake shoes. When not in use, the brake hangs suspendedby springs d, d a short… … Fig. 81. At the same time, the drag caused by shoes a, a causes theregular brake shoes to be pressed against the wheels throughthe agency of the levers e, k, h, f, thus exerting a powerfulbraking action. In the Westinghouse electric-brake system, the connectionsare arranged so that either the…
Electrical engineering
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