The tinman's manual and builder's and mechanic's handbook : designed for tinmen, japanners, coppersmiths, engineers ... with compositions and receipts for other useful and important purposes in the practical arts (1861)
Butts, I. R. (Isaac Ridler), 1795-1882 · Boston : I.R. Butts & Co. · leaf 27
pposite side from c? to eand e to/,- for the top sweep set the dividers on /ouriA line fromtop and sweep two of the spaces ; the same at the corner ; onspace for the remaining sweeps set the dividers so to intersect inthe three corners of the spaces marked X. The seams must beadded to drawing. 22… … 1 \ >i: TO DESCRIBE A CURVED ELBOW. 23 Describe two circles TJX and VS, the curves desired for the elbow,having the distance from U to V equal to the diameter ; then dividethe circle V, W, R and S, into as many sections as desired ; thenconstruct a rectangle, Fig. 8, ADEB, the width equal to the…
