First principles of mechanical and engineering drawing (1897)
Holt-Butterfill, H · London : Chapman & Hall · leaf 193
und.One of them, so far as its position is concerned, will coincide with theaxis of the frustum; and the other, which will be at right angles to it,must be drawn through the point which is the actual centre of thecircular section of the sphere, made by a plane coinciding with anyone of the sides of… … MECHANICAL AND ENGINEERING DRAWING 181 c draw a line perpendicular to the axis of the frustum, and on it set on;from d—where the axes intersect—on either side, a distance equalto c, a or c, b, which is half the major axis of the elliptic section.For the minor axis, project over to that of the…
Mechanical drawing
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