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 79
nes, bearing the same number as1, 1, 2, 2, 3, 3, &c.; then a line traced through the points willform the first section ; make FG and EJ equal to HI; reverse sec-tion No. 1 ; place E at G and F at J ; trace a line from G to J ;make GH and JI equal to PO, fig. 6Y, or to DK, fig, 68 ; take Sec.No.… … b 5 4 3 2 19 Let ABED, fig. 69, be the given elbow; draw the line FO;make FL equal in length to one-half the diameter of the elbow,with F as a centre ; describe the arc GM ; divide the arc GM intofour equal parts, and draw the lines FJ and FH ; also, the line IH ;divide the section GH into two…
Metal-work · Workshop recipes
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
