Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 26
and 0 ; from 0 and 0 cut the arcs in either direction by equal divisions,0 1, 0 2, 0 3, and 0 1, 0 2; draw lines A 1, A 2; A 1, A 2; B 1, B 2; B 1,B 2. The successive intersections of A 1 by B 1, A 2 by B 2, A 1 by B 1 arepoints in the required arc by the connection of which the problem will… … Fig. 22. along these lines. Insert pins at the points A and B on the drawing, aridplacing the cardboard templet against these pins, and the angle against thepoint C, slide the templet each way, dotting in the drawing the angle C in itsdifferent positions. These dots will be points in the curve,…
Mechanical drawing
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