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 40
as centres,with a radii equal to one-half the difference of the two ends, asfrom B to G ; describe the arcs I and 11; draw the right anglelines lAJ and HBK; set off JA and KB equal to FB, and drawthe lines JL and KM at right angles to JA and KB; also, thelines LC and MD at right angles to LJ and… … Erect the perpendicular line NF ; draw the line AB at rightangle to NF ; make EF equal to the Slant height, and draw theline CD parallel to AB; make a AB equal in length to one sideof the base; make CD equal in length to one-fourth the circum-ference of the top, and draw the lines AC and BD, C and…
Metal-work · Workshop recipes
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
