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)
-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 … ge 169.) ( Bax:k Elevation of Brass i li. CHAPTER IX. EXAMPLES EOR PRACTICE. Figure 217 represents a simple example for prac-tice, which the student may draw the size of the en-graving, or he may draw it twice the size. It is a
Mechanical drawing
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