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 27
make JB equal to IE, and the taperrequired on a side, draw a line cutting the points J and I, and theline BC with the radius KI, and in fig. 16, 0 and N as centres,cut the lines LB and MB, as at R and S, with R and S as centres ;describe the arcs NO and NO ; also, the arcs PQ and PQ ; set offNO and… … FOB DESCRIBING PATTERNS. 19 OVAL. To describe a Pattern for a Tapering Oval or Ob-long article^ the sides to be Straight witltQuarter Circle corners, to be in tiooSections. Describe the bottom, the length and breadth required as in fig.17; the body as in figs. 18 and 19; describe the right…
Metal-work · Workshop recipes
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
