Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 762
er. Threads. Diameter. Threads. Diameter. Threads. Diameter. Threads. Inches. No. Inches. No. Inches. No. Indies. No. Inches. No. i 20 1 9 n 5 gx 3i 4f 2f 18 1 8 H -■i • J 3* 5 21 f 10 n 7 2 H :j 3 5i 2f 14 H 7 Oi 4 4 3 5J 2f 12 if 6 2* 4 h H 51 2* f 11 u 6 2* 3* 4* 21 6 2* i 10 i* 5 3 H V- Tliread… … The Whitworth Thread.—The proportions of the Whitworth (English) standard screw-thread areshown in Fig. 3S13, and the pitches for the various diameters are given in the following table : Table showing Number of Threads to an Inch in Whitworth Screws. Diameter in No. of Threads Diameter in No. of…
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