Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 24
ts, by assuming an opening of the dividers as nearly aspossible to that required by the division, and, after spacing the line, dividingthe deficit or excess by the required number of parts, contracting or expandingthe dividers by one of these parts, and spacing the line again, and so on till itis… … FiG. 16. Fig. 17. scribe intersecting arcs. Draw a line through A and the point of intersectionD, and this line will bisect the angle. To lisect an angle luhen the vertex is not on tlie paper (Fig. 17). - 8 CONSTRUCTION OF GEOMETRICAL PROBLEMS.. Let A B and E C be two lines inclined to each other;…
Mechanical drawing
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