Water closet tank and outlet valve

Claim 1

IN COMBINATION WITH A WATER CLOSET TANK ADAPTED TO BE PARTIALLY FILLED WITH WATER TO A PREDETERMINED LEVEL AND HAVING A FLAT BOTTOM AND SIDE WALLS WITH THE UPPER INLET END OF THE CENTRALLY DISPOSED DISCHARGE PIPE SEALINGLY SECURED THROUGH SAID BOTTOM, AN IMPROVED OUTLET VALVE ASSEMBLY AND ACTUATOR THEREFO COMPRISING A REMOVABLE FALSE BOTTOM SNUGLY RECEIVED IN SAID TANK AND SUPPORTED FROM SAID BOTTOM, SAID FALSE BOTTOM DEFINING A CENTRALLY DISPOSED APERTURE OF A LARGE DIAMETER THAN, VERTICALLY SPACED ABOVE AND ALINED WITH THE INLET END OF SAID DISCHARGE PIPE, THE UPPER SURFACES OF SAID FALSE BOTTOM BEING INCLINED DOWNWARDLY TOWARD SAID APERTURE, AN UPSTANDING GENERALLY CYLINDRICAL VALVE SEAT SEALINGLY SECURED AT ITS LOWER END TO THE UPPER END OF SAID DISCHARGE PIPE AND EXTEDDING UPWARDLY FROM SAID PIPE TO A POINT AT LEAST CLOSELY ADJACENT A GENERALLY HORIZONTAL PLANE CONTAINING THE SURFACES OF SAID FALSE BOTTOM DEFINING THE UPPERMOST EXTREMITY OF SAID APERTURE, A FREELY FLOATABLE BALL FLOAT VALVE IN SAID TANK ABOVE SAID FALSE BOTTOM SEALINGLY SEATABLE IN THE UPPER END OF SAID VALVE SEAT WITH APPRECIABLY LESS THAN THE LOWER HALF OF SAID BALL FLOAT VALVE DISPOSED IN THE UPPER END OF SAID VALVE, AN APERTURE FORMED THROUGH ONE OF SAID SIDE WALLS ABOVE SAID LEVEL, PIVOTABLE LEVER MEANS EXTENDING THROUGH SAID APERTURE AND INCLUDING A FIRST END DISPOSED IN SAID TANK AND ENGAGEABLE ONLY WITH THE PORTION OF SAID FLOAT VALVE DISPOSED ABOVE SAID SEAT FOR UNSEATING SAID FLOAT VALVE FROM SAID SEAT UPON PIVOTAL MOVEMENT OF SAID LEVER TO CAUSE SAID BALL FLOAT VALVE TO FLOAT IN SAID WATER AND OPEN SAID VALVE SEAT, SAID BALL FLOAT VALVE BEING RESEATABLE IN SAID VALVE SEAT BY THE ROLLING OF SAID BALL VALVE BY GRAVITY DOWN SAID FALSE BOTTOM TO SAID VALVE SEAT IN SAID APERTURE WHEN SAID WATER IS DRAINED FROM SAID TANK.