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 126
rc required. To obtain by measurejnent the length of any direct line,though iiitercepted by some matetialobject.—Suppose the dis-tance between A and B (Fig. 134) is required, but the PRACTICAL GEOMETRY. 103 right line is intercepted by the object C. On the point d,with any convenient radius,… … ?• 34- describe the arc / /, in length twice the radius; continuethe line through rj, which will be a right line, and maked Cy or e r, equal to the distance between d r, by which thedistance between A and B is obtained as required To insaibe any regular polygon in agiven circle.—Divide any…
Metal-work
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