Johnston, Philip Devereux, 1855- · New York, D. Williams Company · leaf 100
cutting circle in i, 2, 3. With O forcentre transfer these lines to O L and on to the vertexM. Cutting the semi-circle C J D in points i, 2, 3,4 and i, 2, 3,4, project these points upon the baseC D, and from them draw lines to vertex A. Nowproject points i, 2, 3 and i, 2, 3 upon base F G, andcarry… … 95 96 A MANUAL OF MECHANICAL DRAWING. Plate 29. Intersection of Cone and Sphere. With O at intersection of the centre Hnes, draw planof the sphere. Draw O F at any required angle withcentre line, and at some point as centre draw circlerepresenting plan of cone. Project O and F indefinitely to A and…
Mechanical drawing
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