Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 33
t from similar triangles E GII, E G R. and from similar triangles E G F, E G S.EG G S G S EM EN I A K M F G = — x , or,EN GH EHEF FG■ GH EII FG ~ GH X EF EH EG GH GR /•• G G 8 E F EG whence -, = GR EG GR which demonstrates the correctness of the process of constructing the surfaces, as previously…
Mechanical engineering -- Dictionaries
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