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 347
100 and 25, 50, 75 and then add thenumbers shown on the thimble 3, making .178 in all. If it showed4 and one mark, with the thimble showing 8 marks, the readingwould be 400 + 25 + 8 = 433 thousandths or .433. THE TEN-THOUSANDTH MICROMETER This adds a vernier to the micrometer sleeve or barrel as… … Thimble II II Inn II J 43210 Sleeve Thimble M I III I Mil 098654 32: Sleeve B Fig. 7. — Micrometer Graduations the thimble. If the two zero lines match two lines on the thimble,the measurement is in even thousandths as at B which reads .250.At C the seventh line matches a line on the thimble so the…
Machine-shop practice
Internet Archive · UMass Dartmouth, Claire T. Carney Library · Public Domain Mark 1.0. Free to use for anything.