Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 141
mployed as in pre- I \ / X vious problems, care being taken when developing thepatterns for Fig. 49 thatthe section be placed as inFig. 51 at A; and whendeveloping the patterns forFig. 50, that the section beplaced as shown at A inFig. 52. Fig. 53 shows a taper-ing two-pieced elbow, round in… … 110 SHEET-METAL WORK 51 sides of a cone is a true ellipse. Bearing tliis in mind it isevident that if the frastnm of the cone H I O N, Fig. 54, werea solid and cut oblicinely*by the plane J K and the several partsplaced side by side, both would i^resent true ellipses of exactly thesame size, and if…
Architecture · Building · Carpentry
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