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 50
gle to AB; set off onon the line AB, fig. 87, the same number of equal distances as .qthe semicircle from the points; draw lines parallel to BD, as 1, 2, 3,&c., make BD equal in length to AF, fig. 36 ; and AC equal inlength to BE; also, each of the parallel lines bearing the samefigure as 1, 2,… … Pig. 39, -> Let ABC, fig. S8, be the breadth and depth of the gutter;draw the line AC ; draw the lines EG and DH ; the angle requireddraw the line ED cutting the points E and D ; divide the semi-circle into any number of equal parts, from the points draw linesparallel to AE, as 1, 2, 3, &c.…
Metal-work · Workshop recipes
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
