First principles of mechanical and engineering drawing (1897)
Holt-Butterfill, H · London : Chapman & Hall · leaf 121
e so fully explained, the plan of a point on the surface of a conemay be found from its given elevation. We now proceed to theprojection of the conic sections, and as a first problem we take— Problem 52 (Fig. 152).—Given the plan and elevation of a cone,to find its sectional projections when cut by… … MECHANICAL AND ENGINEERING DRAWING 109 produce it into the HP. Choose any convenient points, as, 1, ^,5, in LS, No. 1, and through them, parallel to the IL, draw lines tocut the sides Aa, B&, of the cone. These, being parallel to its base,will each be the edge-view of a circle or base of a…
Mechanical drawing
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