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 82
)arallel lines, bearing the same figures as i i, 2 2, 3 3, etc.Make GI and HJ equal to GD (Fig. 73) ; also, each of thelines bearing the same figures as i i, i i, 2 2, 2 2, etc. ;then a line traced through the points will form the requiredpattern. Edges to be allowed. … \ AI2 3 4- 5 6 7 8 9I0B Pg- 75- To describe a Pattern Jor a TPipe, the Collar to be Smallerthan the Main Pipe.—Let the circle GH (Fig. 75) equalthe large pipe, AB, CD, the branch or collar; describe th^ 60 TIX, SHEET-IROX AND COPPER-PLATE WORKER. semicircle AEB; divide the semicircle into any…
Metal-work
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