Mechanical laboratory methods; the testing of instruments and machines in the mechanical engineering laboratory and in practice (1922)
Smallwood, Julian Chase · New York, D. Van Nostrand company · leaf 53
of rope on eachside of the pulley are equal. The friction, and therefore the horse-power, may be varied by increasingthe weight on the left or by takingmore turns of the rope about thewheel; either procedure greatly in-creases the friction. Fig. 22 gives two other arrangements of rope; brake and… … Fia. 21.—Rope Brake.
Mechanical engineering
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