Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 405
add j to finished diameter for turning Pins over 6 in diameter, add | to finished diameter and order themrough turned unless specially instructed to the contrary Pins up to and including 6 in diameter shall be ordered in multiplelength of about 12 ft. Add j^ for each tool cut and 1 to mul-tiple… … Fig. 7. Illustration Showing Angle Bends Shop Bills. In order to facilitate the getting out of certainarticles which are of the same general form but of different dimen-sions, and for convenience in tabulating information relative tocertain material either before or after it has been assembled…
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
