Improved method of and means for obviating water hammer in service pipes

摘要

453,785. Water-supply. JESSOP, G., Ingle Nook, Gomersal, near Leeds. March 22, 1935, No. 8995. [Class 68 (i)] [See also Group XXIX] Means for preventing water hammer in water supply pipes controlled by a ball cock, comprises a disc 8 of aluminium or other light material suspended from the ball or its lever by a chain or other flexible connection so as to be constantly submerged, the disc being dished or domed or provided with a central boss 11 to form an air chamber on its underside.