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 55
N 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, with the radii IG and IF,describe the curves GM, FN; then set off that portion ofthe circumference of the base FL required for a… … ^•|g• 43- of covering is obtained as follows: The length of thecourse BF is equal to the curve AB, and EG the breadthof it; join ED, and the lines i, 2, 3 and 4, intersectedthereby, will be the half breadth (for the vertical BD) oftne course at the corresponding lines on BF, through v/hichpoints a…
Metal-work
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