Anthony, Gardner Chace, 1856- [from old catalog], Ashley, George Francis, [from old catalog] joint author · Boston, D. C. Heath & co. · leaf 132
be changed, and itwould become an hyperboloid of one nappe. An interesting application of this surface topractice is found in the pilot, or cow catcher,of a locomotive, which consists of two hyper-bolic paraboloids symmetrically placed withrespect to a vertical plane through the centerof the…
Geometry, Descriptive
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