International Library of Technology · Scranton, International Textbook Co. · leaf 502
ed to normalposition by the release springs on the brake rigging. The object of having P and13 independent of eachother is so that when thehand-brake is used andpush rod P must be pulledout, it will not be neces-sary to pull out 4 and13 against the action ofspring 8. The travel ofthe brake piston… … LEVER SYSTEM. 85, Fig. 76 shows asystem of air-brake leversrecommended by theChristensen Company,The diameter of the brakepiston is in this case6 inches and its area, inround numbers, is 28square inches. Supposingthat the reservoir has apressure of 60 pounds persquare inch and that fullpressure is…
Electrical engineering
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