A practical work-shop companion for tin, sheet-iron, and copper-plate workers ... with numerous valuable receipts and manipulations for every-day use in the work-shop (1904)
Blinn, Leroy J. [from old catalog] · Philadelphia, H. C. Baird & co. · leaf 25
hen the figure CDI will be that of therequired surface of the cone. Edges for folding or lapping to be allowed, drawing thelines parallel to CI and DI, as shown by the dotted lines. To describe a Frustum of a Cone.—Let AB (Fig. 2) equaldiameter of large end ; FH diameter of small end; GKaltitude.… … cumference of AB required for a pattern; draw the linesCI and DJ, cutting the centre at E. Edges for folding or lapping to be allowed, drawing thelines parallel to CI and DJ, as shown by the dotted lines. Obs.—The term altitude denotes perpendicular height;as from G to K in Fig. 2. CAN TOP OR DECK…
Metal-work
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