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 100
14 PLANIMETERS 79 See Fig. 50. The record wheel moves from 2 to 2 when thetracing point passes from 4 to 5. The rectangular componentof the motion, 2-2, causing rotation of the wheel, is representedby the line m, perpendicular to the wheel axis, m is therefore … Fig. 50. the distance moved through by any point on the record wheelcircumference relative to its axis. From 1-2-3,From 1-2-4, Subtracting,From which. From (1), m = XdK sin (A-90°)= —X cos AdK a2 = 62 +X^-2bXcosA.r2 = (6+c)2+Z2-2(6+c)XcosA.q2_j,2 =,_25c —c^ +2cXcosA. XcosA= y(a2+c2+26c-r2). 1 =…
Mechanical engineering laboratories
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