Practical engineering drawing and third angle projection, for students in scientific, technical and manual training schools and for ... draughtsmen .. (1897)
Willson, Frederick Newton, 1855-1939 · Princeton, N.J., The author · leaf 171
each (extended) one-half its own (projected) length; thus cc and cc each equal oc; bb equalsob, etc. Then draw in light lines the traces of the various faces on the planes of the axes. Thus,ab and ab each represent the trace of a plane cutting the c-axis at infinity, and the other axesat either one…
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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