Elementary mechanical drawing, for school and shop (1886)
Aborn, Frank, 1845- [from old catalog] · Cincinnati, New York, Van Antwerp, Bragg & co · leaf 17
t of which isequally distant from a point within it called its center. A Diameter of a circle is a straight line joiningtwo points in the circumference, and passing throughthe center. Every circle may have an infinite num-ber of diameters. A Radius is a line extending from the center tothe… … Fig. 9. Fig. 10. 16 MECHANICAL DRAWING. point in the position of the center C, and holdingthe needle-point leg as nearly upright as possible,revolve the pencil leg about it, so that the pencilshall describe a continuous line ABD, every part ofwhich is equally distant from its center C. Prob.…
Mechanical drawing
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