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 75
ect the perpendicular lines AF, BE andCD ; set off on each side of BE the same number of equal dis-tances, as in the semicircle AGB; from the points draw linesparallel to BE, as 1, 1, 2, 2, 3, 3, &c.; make BE equal to BF;make AF and CD equal to AE; also, each of the parallel linesbearing the… … 3 218 Let ABED, fig. 66, be the given elbow; draw the line FC; makeFK equal to one-half the diameter of the elbow, with F as a cen-tro ; describe the arcs GL ; divide the arc GL into four equal parts ;draw the lines FH and FJ ; also, the line JH ; draw the line ABat right angles to BO; describe the…
Metal-work · Workshop recipes
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
