f the linkage. Aspring balance placed between the upper and lower mem-bers serves to measure the total pressure exerted on thetwo brake shoes. It will be seen that the apparatus issimply a prony brake, by means of which the power in-put to the brake facing is readily measured. The fac-ings are each… … [pparatua red for texts of brake lining maintained by applying to the brake shoes the necessarypressure by turning the hand wheel. The linings are run until worn away to one-half theiroriginal thickness, the power absorbed and the time re-quired for wear being measured. These tests are beingtried…
Automobiles · Aeronautics
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