Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 141
upon each face of it build theblocks with the square holes in them, exactly as shown inFig. 170. Prob. 40.—To project an isometrical circle. The circle is enclosed in a square, as shown by Fig. 171. 126 MECHANICAL DRAWING. Draw the circle with a radius = 2 and describe the squareI, 2, 3, 4 about… … Fig. 170. through the center 0 draw CD and EF at right angles to theisometrical square. The points CD, EF, and GH will be points in the curveof the projected isometrical circle, which will be an ellipse.The ellipse may be drawn sufficiently accurate as follows:With center B and radius BC describe…
