A practical work-shop companion for tin, sheet-iron, and copper-plate workers ... with numerous valuable receipts and manipulations for every-day use in the work-shop (1904)
Blinn, Leroy J. [from old catalog] · Philadelphia, H. C. Baird & co. · leaf 54
a Dojne by the First Method.—Let ABC (Fig.41) be the section of a dome. Draw the axis DB; pro-duce to J; divide the curve of one-half the figure into … equal i)arts, as EFG and H, the>width of these divisionsbeing the width required by that of the metal with which S2 TIN, SHEET-IRON AND COPPER-PLATE WORKER. the dome is to be covered; produce AE, EF, FG, GHand HB severally, until they intersect the axis BD; then[for example] from the point I,…
Metal-work
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