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 85
iameter than the breadth ofthe bottom; let FG be three-eights of an inch; then apply thecorner of the square on the line AB, allowing the blade to cut thecircle at I and the tongue at the point G; draw the lines GB, BH,also the lines GA, AH; allow one-eight of an inch for an edge,as shown by the… … Let ABC, fig. 74, be the pitch of the roof; make DE equal totne diameter of the pipe ; describe the circle FG ; make FG thesame in diameter as the pipe ; draw the line FG ; set off on theline FG any number of equal parts; from the points draw lines atright angle to FG as 1, 2, &c. FOR…
Metal-work · Workshop recipes
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
