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)
ithin the limits of circle E 1, subdivide line B intoeight equal parts, as at 1, 2, 3, 4, etc. Draw the ver-tical lines, 1, 2, 3, 4, etc., until they each intersect thecircle E 1. With X as a centre, draw the circle E, having a16 :4- MECHAXICAL DRAWJXG SELF-TAUGHT. diameter of iS inches, equal to… … Fig. 276. X. We will now proceed to utilize the scale affordedby Figure 274, in laying off the cut-off cam shown inFigure 276. of half stroke limit. With X as a centre, draw the circle E, Figure 275,having a diameter of iS inches. Bisect this circlewith the straight lines A and B, which bear the…
Mechanical drawing
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