13,789. Mollien, J. Ravaisson-. June 17, 1911, [Convention date]. Valve-discharge water-waste preventers.- When the chain attached to the lever 18 is pulled, a case 11 turns on pivots 12, a ball 19 rolls to the right, and the flush-valve is opened. At the end of the flush, the weight of the water in the container 7 carrying the valve closes the valve, and restores the ball 19 to its original position.
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