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)
all of like travel and dimensions,which are the same as those given for the full strokecam in Figure 272. PLOTTING MECHANICAL MOTIONS. 241 In drawing cut-off cams, the stroke of the engineplays a part in determining their conformation, and inthe examples shown this is assumed to be 4 feet.Figure… … Scale 1^1 foot Fig. 275. revolution. This circle has a diameter of 4 feet, equalto the stroke of the engine. Draw the horizontalline B, passing through the centre of circle E 1.Within the limits of circle E 1, subdivide line B intoeight equal parts, as at 1, 2, 3, 4, etc. Draw the ver-tical lines,…
Mechanical drawing
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