Mechanical drawing; a treatise on the drawing of mechanical and machine details (1920)
Jones, Franklin Day, 1879-1967 · New York, The Industrial press; [etc., etc.] · leaf 336
Circle SKETCHING 323 sketches require circular as well as straight lines. It is ratherdifficult to draw, free-hand, what, even in the spirit ofcharity, might be called a circle; but circles can be drawnquite satisfactorily by the method illustrated in Figs. 8, 9,and 10. The circle is drawn by… … Fig. 11. Drawing Arc of Large Radius by using Elbow as Pivot for the pad. The end of the finger may bear against the pad,as shown in Fig. 8, but for the larger circles some prefer toform a pivot by bending the finger so that the first joint restsupon the pad as in Fig. 9. It is necessary to apply…
Mechanical drawing
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