The sheet-metal worker's guide : a practical handbook for tinsmiths, coppersmiths, zincworkers, etc., comprising numerous geometrical diagrams and working patterns, with descriptive text (1888)
Crane, W. J. E. (W. J. Eden) · London : Lockwood and Son · leaf 86
74 THE SHEET-METAL WORKER's GUIDE, the taper required on a side ; draw a line cutting the points a and d and the line b c. On any right line, as a b, in Fig. 67, with the radii c b and e b, describe the arcs c d and E r ; set off E F equal to e b d in Fig. 64 ; draw the lines E c and e d. … Fig. 68. Fig. 69. Fig. 70 (Fig. 65) make e f equal to c e in Fig. 64 ; make g b equal to e f and the taper required on a side ; draw a line cutting the points g and e and the line b c ; with the radius h e, and (in Fig. 67), E and f as centres, cut the lines c b and D b as at L and m ; with l and m…
Sheet-metal work
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