Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 858
insuch a manner that their summits always coincide, the curve which is generated by a point in the cir-cumference of the rolling cone is a kind of epicycloid, which will plainly lie on the surface of a spherewhose centre is the common apex of the cones, and whose radius is equal to the slant side… … To apply this definition, let there be two cones in contact along their slant sides A c, Fig. 2070; andlet c A a be any other cone, having its line of contact coinciding with A c, and having its apex at A; theaxes of these three cones will then be in the same plane A R B. The circumferences will…
Mechanical engineering
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