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 89
fter the edge is h;id off; lay the hoop on the pkte, allowing anedge each side, as shown by the diitance between the two circlesand tbe dot on the line AG, the circle DE representing the hoop :take the distance from A to the dot on the lino AO, and set offthree times the distance on the outer… … On the intersection of the two diameters as a centre, with aradius equal to one-half the difference of the two diameters, de-scribe the arc AB, and from B as a centre, with half the chordACB, describe the arc CD ; from E as a centre with the distanceED cut the diameters at FF and DD ; draw the…
Metal-work · Workshop recipes
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