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)
ng through the major and minor axis of theellipse, of which a is the axis or centre, b c\s the majoraxis, and ae half the minor axis. Draw the rectanglebfgc, and then the diagonal line be; at a right angleto ^ ^ draw \inQ//i, cutting B B at z. With radius a eand from ^ as a centre draw the dotted… … A Fig. 81. of the semicircle binj, cutting it at ;;^, and cutting^^at n. With the radius vi n mark on A A at and from.7 as a centre the point o. With radius h o and from LIXES AXD CURVES. 71 centre k draw the arc p 0 q. With radius a I and fromb and c as centres, draw arcs cutting^ 0 q 2X the…
Mechanical drawing
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