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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 184

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 184
% * \ i I I / / / / / /// 7 * I I ./ / 7 / / // / / / // / / / V / / R Fig. 225 a.portion of the spiral or thread is hidden, namely from lSo MECHANICAL DRAIVIXG SELF-TAUGHT. lines i to 13 inclusive, being an equal proportion tothat hidden in the left-hand view. The top of the cylinder is shown in…

Mechanical drawing

Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.

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