A manual of elementary geometrical drawing, involving three dimensions. Designed for use in high schools, academies, engineering schools, etc. : and for the self-instruction of inventors,artizans, etc. ... In five divisions .. (1867)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York : J. Wiley and son · leaf 98
SHADOWS. 65 171. Prob. 3. To find the shadow of a fragment of a horizon-tal timber, upon the horizontal top of an abutment on which thetimber rests. PI. VIII., Fig. 83. Let AA be the timber, and BBthe abutment. The vertical edge, a—aV, casts a shadow, ab, inthe direction of the horizontal…
Geometrical drawing · Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
