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)
t of the dividers at the intersection of the arcE, with the vertical line A i at S, draw the arc P oppositeto S, and let it merge or lose itself in the curved lineK 2. Draw the other curved line P from the otherpoint S, and we have a full stroke cam of the dimen- 240 MECHANICAL DRAWING SELF-TAUGHT.… … 1 lo 5 \A Scalp l=l footFig. 274. limits of cut-off, but 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…
Mechanical drawing
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