Encyclopedia of architecture : a dictionary of the science and practice of architecture, building, carpentry, etc., from the earliest ages to the present time, forming a comprehensive work of reference for the use of architects, builders, carpenters, masons, engineers, students, professional men, and amateurs (1852)
Nicholson, Peter, 1765-1844, Lomax, Edward, Gunyon, Thomas · New York : Johnson, Fry & Co. · leaf 358
rojection of thepoint of contact. If from the point of contact, and from the axis, a vertical]>lane be conceived, whose projection would be the ind.■finitehorizontal line a g, such plane must cut the revolving surfacein a curve, which will become the generator, passing throughthe point of… … DrtiHn by PNichoUott. En^-by.P^ Uf-lr- DES 245 DES man\ points of contact, of which o will be the commonhorizontal projection. All these imaginary points of contactwill be found in the plane of the generator, by carrying a gupon L M, from a to e, and drawing through the point e aline parallel to a…
Architecture · Architects
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