Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 366
ork, it often ha])pens that tapering mould-ed panels are used, a plan and elevation of which are shown in Fig. 285. 296 SHEET METAL WORK 211 By referring to the plan, it will be seen that the four parts b a, a &, 6 a,and a b are symmetrical; therefore, in practice, it is necessary only todraw… … Fig. 285. by a 1 5 6 9. Divide the curves from 1 5 and 6 9 into equa-spaces, indicated respectively by 1, 2, 3, 4, and 5, and 6, 7, 8, and 9.From these points, draw lines to the apex a. As the pattern will be de-veloped by triangulation, a set of triangles will be required, as shown in SL- CENTER…
Architecture · Building · Carpentry
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