A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 278
n H P and from F Xo E oxi\ P. The uprightportion of the drawing V P is now imagined to be bent back-wards until laid flat on the drawing board, and it is evidentthat E F B is represented on the flat surface of the two 15 PRACTICAL PROJECTION 19 planes of projection by the strai^lit line Jl F P>.… … Fig. 4 of the line. These points (or dots, for points, being entirelyimaginary, could not, of course, be actually represented) *B and £ are the projections of the point A—the linedrawn between them(/>7^^) is called 2, projector. When * Attention has been called to the fact that jioints, lines,…
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