Wallis, Rolland S. [from old catalog], Iowa state college of agriculture and mechanic arts, Ames. Dept. of engineering extension. [from old catalog] · Ames, Iowa, Engineering extension department, Iowa state college · leaf 67
<- Point ofTangency OE=OF= MajorAxis - Minor Axis (c) 06=0H=J0E … Fig. 87.—Construction of the ellipse and the parabola. minor axes, respectively, the point E will locate points on a true ellipse.A light line should be sketched through the series of points thus found,and the curve drawn in accurately with the assistance of a French curve. Frequently it is…
Mechanical drawing
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