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, artisans, etc. ... In five divisions .. (1868)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York : J. Wiley & son · leaf 91
4 i. A- : > —? T— jvmAv\_.^ 1 I :—1_ f=a. ■«*. ■A 9tm K -1 ^^ K^ B A lo … ^ ■bv □ U^_) v-^,A1 > / ■A/--/-^ - I ■«<:*■■ SHADOWS. 65 171. Pkob. 3. To find the shadoxo of a fragment of a horizon-tal timber^ upon the horizontal top of an abutment on which thetimber rests. PL VIII., Fig. 83. Let AA be the timber, and BBthe abutment. The vertical edge, a—aa\ casts a…
Geometrical drawing · Mechanical drawing
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