Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments. Elementary instruction in practical mechanical drawing. Together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers (1889)
crank is assumed in the ficrures to be on itsdead centre nearest to the engine cylinder, and to re-volve in the direction of the arrows. The cams are PLOTTING MECHANICAL MOTIONS. m SO arranged that their plain unflanged surfaces boltagainst the collar. The method of drawing or marking out a full… … Scale 1^ = ] TojtFig. 270. 2^ The circumference of the cam is composed of fourn\rved lines, P, F, K i, and K 2. The position of thecentre of the crank shaft in this irregularly curvedbody is at X. The arcs K i and K 2 differ in radius,but are drawn from the same point, X, and hence areconcentric…
Mechanical drawing
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