Anthony, Gardner Chace, 1856- [from old catalog], Ashley, George Francis, [from old catalog] joint author · Boston, D. C. Heath & co. · leaf 113
a Fig. 169. Having determined the radius of curvatureof the helix, draw the circle and its involuteto obtain the development of the convolute.Fig. 170 is the development of the helical con-volute shown by its projections in Fig. 167. … 132. To determine the curve of intersectionbetween a plane and a surface of revolution. In the following cases the axes of revolutionare considered to be perpendicular to one ofthe coordinate planes. INTERSECTION OF PLANE WITH SURFACE OF REVOLUTION 97
Geometry, Descriptive
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