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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)

Rose, Joshua · Philadelphia, H.C. Baird & Co.; London, S. Low, Marston, Searle & Rivington · leaf 62

An illustration from 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, leaf 62
Fig. 71 <?. Fig. 72. drawn to that dim.ension circumscribes the polygon,because the circle is without or outside of the polygonand touches it at its corners only. When the dimen-sion across the fiats of the polygon is given, or whenth6 dimension given is that of a circle that can beinscribed or…

Mechanical drawing

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