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 122
c; then join «, b, c, whichwill complete the required triangle. To find the centre of a circle.—Drawthe chord a b (Fig. 124). From theterminal points of this chord describe,with any convenient radius, an arc in-tersecting in c and d; through the in-tersection draw a straight line meetingthe circle…
Metal-work
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