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 29
cones, V P being the common element, which and the axes arc in the plane of the paper. Drawthrough Pa perpendicular to VP, cutting A B at /and CD at G. Then, if Pi*revolve aroundA B,lt will generate a cone P FE, whose elements are normal to those of VPE. So also P G byrevolvin around CD generates a…
Mechanical engineering -- Dictionaries
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