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 88
the indefi-nite line of shadow, hd, as is d, on the timber BB, for finding thereal portion only of the line of shadow, viz. the part which liesacross BB. Observe that the back upper edge of AA, which is a heavy line,as seen in the plan, is so represented only till the intersection, nearh—c^, of the… … V^/vA/ V-^ B B ■■•-■ PI ■^^ V^)d}^
Geometrical drawing · Mechanical drawing
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