Industrial drawing and geometry; an introduction to various branches of technical drawing (1911)
Spooner, Henry John, 1856- · London, New York [etc.] Longmans, Green, and co. · leaf 168
0/234-5 65432 / 0DEVELOPMENT 22 D j£. GIRTH LINE Figs. 505, 506.—Development of square elbovr. Fig. 507.—Development of square elbow.Direct method. 264. Direct Method.—Fig. 507 shows a direct method of setting out the curve, which should speak for itself when comparedwith the other figures. 265.… … Fig. 508 shows the end view of such a piece. To draw the development, Fig. 510, first draw the semicircle in Fig. 508, and divide it, as shown; through the three divisions erect perpendiculais cutting the upper circle in 1, 2, 3, 0; horizontals through these points cut the ordinates from the base…
Mechanical drawing · Geometrical drawing
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