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 69
and MAN; set off BO and AN equal in length to EH,and draw the lines OR and NP at right angles to NB andNA ; also, the lines RD and PC at right angles to RO andPN. Edges to be allowed. 46 TIN, SHEET-IRON AND COPPEE-PLATL nORKER. … Fig. 56.OCTAGON. To describe a Pattern for Tapering Octagon Top or Cover.—Erect the perpendicular line GE (Fig. 57); draw theline AB at right angle to GE ; make FE equal to the slantheigi-t of the article, and draw the line CD parallel to AB;make AB equal in length to one of the longest sides ofthe…
Metal-work
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