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 72
; draw the linesEG and DH, the angle required ; draw the line ED, cuttingthe points E and D ; divide the semicircle into any num-ber of equal parts; from the points draw lines parallel toAE, as I, 2, 3, etc. Then set off tlie line AB (Fig. 61)equal in length to the semicircle ABC ; erect the lines… … Fig. 60. Fig. 61. Make BD equal to EA, and AC equal to DC; also, eachof the parallel lines bearing the same figures as i, 2, 3, etc. ;then a line traced through the points will form thepattern. To describe a Fat tern for a Miter Joint for an O G Gutterat Right Angles.—Let ABCD (Fig. 62) be the…
Metal-work
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