Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 197
cut at rightangles to each other. As the centers ofboth pipes are in one line when viewed in plan, making bothhalves of the transition piece equal, the problem then consists ofdeveloping a transition piece, frdm a round base to a round topplaced vertically. Therefore in Fig. 88 draw 1 5 ecpial to… … Fig. 82. 158 SHEET METAL WORK 87 Divide both of these into equal spaces as shown, from which drawlines perpendicular to their respective base lines. Connect oppositepoints as shown by the dotted lines, and construct a diagram of
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