American machinists' handbook and dictionary of shop terms : a reference book of machine shop and drawing room data, methods and definitions (1914)
Colvin, Fred H. (Fred Herbert), 1867-1965, Stanley, Frank A. (Frank Arthur), b. 1874 · New York : McGraw-Hill book company ; London : Hill · leaf 670
=pitch- no. threads per inchd = depth = Jp/=width of flat = Jps = width of space = J p. While theoretically depth, width ofspace and thread are each one halfthe pitch, in practice the groove is cut slightly wider and deeper. SCREW THREADS — Continued 64T U--~p—4 … Screw Thread, p= pitch = United States Standard I no. threads per inchd=dcpth==p X .6495P_8 f=flat=. This thread was devised by Wm. Sellers,and recommended by the FrankHn Institutein 1869. It is called the U. S. Standard, the Franklin Institute,and the Sellers thread. The advantages of this thread…
Machine-shop practice
Internet Archive · UMass Dartmouth, Claire T. Carney Library · Public Domain Mark 1.0. Free to use for anything.
