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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 71

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 71
ing through the major and minor axis of theellipse, of which a is the axis or centre, <5^ is the majoraxis, and ae half the minor axis. Draw^ the rectanglebfgc, and then the diagonalline be; at a right angleto be draw Xm^fh, cutting B B at i. With radius a eand from ^ as a centre draw the dotted… … Fig. 8i.of the semicircle /;;;//, cutting it at ;;/, and cutting/^^at n. With th<i radius ;;/;/ mark on A A at ancf from(y as a centre the jx.int o. With radius h o and frcim LINES AND CURVES. 71 centre h draw the arc p 0 q. With radius a I and fromb and c as centres, draw arcs cutting j?^ 0 q…

Mechanical drawing

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