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 138
he foundation timbers, w^hichbeing laid transversely, and being one foot wide and one foot apart,are represented by parallels one foot apart, and perpendicular toBB. Let the planking project 4 inches beyond the left hand tiraber. Observe that two timbers touch each other under the archfront. j. The…
Geometrical drawing · Mechanical drawing
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
