Mechanical movements, powers, devices and appliances (1901)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley & company · leaf 59
147. FRICTION MACHINE, for testingthe friction of wheels at various speeds andloads. The adjustable circular balance holdsthe wheels or vehicle in place. The poundstension on the scale multiplied by the periph-eral velocity in feet per minute gives the foot-pound draft or friction. so MEASUREMENT… … 148. TORSION DYNAMOMETER.—To a driving shaft E is attachedat C a helical spring. To the otherend of the spring is attached a trans-mission pulley A and a small pulleyK^ Q^, moving freely on the shaft E. AtQo another small pulley is fixed to shaft E. The tension of trans-mission displaces the…
Mechanical movements
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