A practical workshop companion for tin, sheet iron and copper plate workers : containing rules for describing various kinds of patterns used by tin, sheet iron and copper plate workers : practical geometry, mensuration of surfaces and solids, tables of the weights of metals, lead pipe, etc., tables of areas and circumferences of circles : japans, varnishes, lackers, cements, compositions, etc., etc., etc. (1876)
Blinn, Leroy J · Philadelphia : Henry Carey Baird & Co. · leaf 35
oughthe points of division parallel to the base; and then consider theportions of the figure as so many frustrums of a cone ; the surfaceof each frustrum can then be determined as by fig. 26, page 26. Second Method. Divide the circumference of the base into a number of equalparts, and assume… … Let ABC, fig. 26, be the section of a dome. Draw the axisDB ; produce to J ; divide the curve of one-half the figure intoequal parts, as EFG and H, the width of these divisions being th«width required by that of the metal with which the dome is to becovered ; produce AE, EF, FG, GH, and HB,…
Metal-work · Workshop recipes
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
