Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 451
Fig. 10.—Piston valve without packing rings. … A construction-of piston valve which avoids the use of packing ringsis. shown in Fig. 10 {W. H. Booth, Amer. Mach., May 21, 1896).After rough turning, the valve is slotted longitudinally, compressedby an encircling clip, turned at the ends and a V-piece fitted in aV-recess on the inside of the…
Machine design
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