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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 (1889)

Rose, Joshua · Philaelphia, H.C. Baird & co.; [etc., etc.] · leaf 210

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, 1889, leaf 210
Fig. 240 … (Page 203.) DRAWING GEAR WHEELS. 203 If it is desired to draw an edee view of a wheel(which the student will find excellent practice), thelines for the teeth may be projected from the teeth inthe side view, as in Figure 240 a. Thus tooth E isprojected by drawing lines from the corners A, B, C,in…

Mechanical drawing

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