Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)
Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 58
wheel indicate the number of revolutions of the rolling disc. 156. LIPPINCOTT PLAN.IMETER.-R is the fixed point?.T the tracer; ^ is a smooth roundarm on which a scale is laid offfrom the axis; D is a disc with afree motion on the scaled arm. … 52 MEASUREMENT OF POWER.
Mechanical movements
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