Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 393
3Y6 MACHINE DESIGN AND MECHANICAL CONSTRUCTIONS. and the rivets connecting the plates pass through these thimbles, so that therubber may be held but not tightly fastened—a rule applicable to all such valves.Check-valves (Figs. 861 and 862) are placed outside of large pumps to pre-vent the return of… … SPACE OCCUPIED BY THEVALVES. Fig. 860. Measure- Measure- SIZE. ment from ment from face to face end to end of flange. of hub. Inches. 4 llf 13f 5 14i 16 6 IH 16 8 17f 19 10 21i 24 12 24i 26i 16 29 31 18 33 35 20 35i 38 24 39f 39 their examination. Valves of this kind open from the pressure of water…
Mechanical drawing
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