Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 227
igh asc d and in length equal to the quarter circumference c d in planin Fig. 117 which is the section on c in elevation. These rulesare applicable to any form of mould as shown in Fig. 119, byc^f^ //, and ;. The bead / in / would be made in two pieces witha seam at i as shown by the dotted line,… … 184 SHEET METAL WOEK 113 in pieces, the coppersmiths work must form a curve as shown inFig, 120 which represents a curved elbow of 45, In Fig. 121 is shown how an elbow is laid out having 90,similar principles being required for any degree of elbow. Firstdraw the side elevation of the elbow as…
Architecture · Building · Carpentry
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