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 263
, at orifice c, is a connection to a smallhand valve, which controls the action of the piston d, which formsthe head of and actuates the main valve. The water is dischargedfrom the main cylinder through the valve and the opening e, the valve,as shown, being in position for discharging the main… … Fig. 24.- Leather Rings in Valve Seat
Machine design
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