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 46
the lines AC and BD ; makeGH equal in length to the shortest side of the base; make JI equalin length to the shortest side of the top; draw the line HI, also,erect the line KI parallel to FE, C and D as centres, with the radiiHK; desciibe the arcs M and L; draw the right angle lines LBO,and MAN;… … 38 PKACTICAL EULES OCTAGON. To describe a Pattern for Tapering Octagon 2op orCover. Erect the perpendicular line GE, fig. 35 ; draw the line AB atright angle to GE ; make FE equal to the Slant height of the ar-ticle, and draw the line CD parallel to AB; make AB equal Lalength to one of the longest…
Metal-work · Workshop recipes
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
