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)
view), half-circles /-, /, ;;^,n, 0, are drawn to meet the circle of B in the top view,and from their points of intersection with B, lines /,q, r, s, /, are drawn, and where these meet lines a, b, c,d and e, which is at ?/, v, w, x, y, are points in the curve. It will be observed, on referrinof… … Top View Fig. 230. of finding the elHpse for any given degree of an.o-le is i88 MECHANICAL DRAWING SELF-TAUGHT. as In Figure 231, in which B represents a cyHndricalbody whose top face would, if viewed from point I, ap-pear as a straight line, while if viewed from point J itwould appear in outline a…
Mechanical drawing
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