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 264
he spring were notthere, hut shovild a particle of foreign substance lodge under the valve,and so prevent its seating, or should the valve be set wrong, duringthe trial adjustments, the spring would give way and prevent damage.Without the provision of the spring, disaster might follow on… … Cup LeatherOup Leather \ Ground Joint 45 Fig. 27. Rapid Coupler for HydraulicL.<^))Connection
Machine design
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