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 20
FOR DESCRIBING PATTERNS. 11 … 12 rnAcncAL eules OVAL. To describe a Pattern for a Taperinrj Oval artidf,^to he in two Sections. Describe the bottom, the length and breadth required as in fig,8, then describe the body as in fig. 9 and 10. Describe the right angle ABO, fig. 9; make BE the altitude,draw the line DE at right angle…
Metal-work · Workshop recipes
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
