Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 376
FiG. 812, … Fig. 813. valves in section and outside view showing their connection with the wrist-plateand its motion, also the piston-rod and stuffing-box with a scale of reference.The thickness of shell Mr. Henthorne finds, by many examples in Corlisss largepractice, to conform to the formula t = 268 Vd., t…
Mechanical drawing
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