Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 68
pipe, or to twice the numberof divisions in the small semicircle. Divide one-half of GG into six equal parts, as Fm, mn, no, op,pq, and qG. Draw perpendicular lines from F, m,n, 0, p, q, and G. Take the length of the lines in THE INTERSECTION OF SURFACES 65 Fig. 145, as FH, mr, ns, ot, pu, qv, and… … Fig. 148. smaller pipe. To obtain the curve for the hole inthe large pipe. Draw DB and HJ, Fig. 147, atright angles, take the distances in Fig. 145, fromA to f, g and h, and mark off like distances on each side of A in Fig. 147 on the line DB, as f, g, and h,and draw lines from these points…
Mechanical drawing · Machine design
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