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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 223

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 223
Fig. 245. cone surface on which the teeth lie being left blank,save at the edcres where a tooth is in each case drawnin. Wheel D is shown in section so as to show themeans by which it may be moved out of gear with Cand E. Small bevil gears may also be represented bysimple line shading; thus in… … 249- Page 209.) DRAWING GEAR WHEELS. 209 may be represented by simple circles in a side viewand by line shading in an edge view; thus it wouldanswer every practical purpose if such small wheels K

Mechanical drawing

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