A practical work-shop companion for tin, sheet-iron, and copper-plate workers ... with numerous valuable receipts and manipulations for every-day use in the work-shop (1904)
Blinn, Leroy J. [from old catalog] · Philadelphia, H. C. Baird & co. · leaf 101
arcs cutting the radii, in Fig. 91, in C, q\ p, n\ nt\ / and A \ A98 7 6 5 4 3 21 B Fig. 92. B. etc., and the curve being drawn through these pointswill give the bottom of the tapering piece. 78 TIN, SHEET-IRON AND COPPER-PLATE WORKER. The upper piece is to be drawn in the same manner, andwill be… … Fg:- 93- divide the semicircle into any number of equal parts; fromthe points draw lines parallel to BC, as i, 2, 3, etc. Set off the line ABC (Fig. 93) equal in length to thecircumference of the elbow AB ; erect the perpendicularlines AD, BE and CF; set off on each side of BE the ELBOWS. 79 same…
Metal-work
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