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 (1883)
Fig. 216. Before going into projections It may be as well togive some examples for practice. … -10 —Section tliroiKjh A. B. Fii;. 219. Hole for Set-Screw yl^ Tapped U Threads Front Elevation ofRod, without Brass. P / r j^AC.O. will be cast from the same patterns. SCALE OF INCHES. 3 3 4 S . S
Mechanical drawing
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