Mechanical laboratory methods; a testing of instruments and machines in the mechanical engineering laboratory and in practice (1918)
Smallwood, Julian Chase · New York, D. Van Nostrand company · leaf 179
coefficientand temperature. 36. Belt Testers Transmissioji Front/ BrakeDynamomefer | —-^..Z—<—-- ^ Principles. When power is transmitted from one shaft to another by means of a belt run-ning on puUeySj friction is the use-ful force. Friction sets up ten-sions in the belt; on one side,a greater… … tlllTy^^olloyrer^ Fig. 74.—Belt Tester. ^ = 10*T2 and T=Ti-T2 = Ti(l 107 in which A= .0076/^; / being coefficient of friction and ^ theangle of contact of the belt in degrees. The formulas are derivedon the assumption that / varies only with the normal force ofcontact and that centrifugal force on…
Mechanical engineering laboratories
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