Notes on technical sketching and free hand lettering for engineering students (1912)
Smith, Alton Lincoln, 1867- [from old catalog] · Worcester, Mass., The author · leaf 45
-Pipe. —C/ross … # \ tZ/VfON -Y BfiA/</cH r-r^S ELBoyV 43 PIPE CONNECTIONS FIG. 11 129. Ordinary Standard wi-ought iron pipe is designated by its nominal inside diameter. Thus a12 pipe is just 12 in internal diameter, while a J pipe is .269 in internal diameter. See Table 11 forproperties. Extra and Double Extra…
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
