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Claim 1

A SEPARATOR FOR REMOVING A DISPERSED HEAVY LIQUID FROM A SUSPENDING LIGHTER LIQUID, COMPRISING, IN COMBINATION, AN UPRIGHT CASING, A COALESCER IN SAID CASING, A LIQUID COLLECTING SUMP CHAMBER THEREBELOW, AND AT THE BOTTOM OF THE CASING A FLOAT-OPERATED VALVE COMPRISING, A FLOAT FOR LIQUID-BUOYED MOTION ABOVE A DISCHARGE OUTLET IN THE SUMP CHAMBER, A VALVE SEAT ABOUT THE DISCHARGE OUTLET, A VALVE BELOW SAID FLOAT CLOSING SAID SEAT AND MOVABLE AXIALLY AWAY THEREFROM, AND LINKAGE MEANS CONNECTING SAID FLOAT TO SAID VALVE INCLUDING PULL LINK MEANS PIVOTALLY SUPPORTED AT ONE END TO SAID FLOAT AND AT ANOTHER END TO ONE END OF A LEVER POSITIONED BETWEEN SAID FLOAT AND VALVE, THE LEVERS BEING PIVOTALLY SUPPORTED AT AN INTERMEDIATE FULCRUM POINT SEPARATE FROM AND FIXED WITH RESPECT TO SAID MOVABLE VALVE, SAID PULL LINK MEANS BEING PIVOTALLY ATTACHED TO AN UPSTANDING PORTION OF SAID LEVER IN A MANNER SUCH THAT THE PULL LINK MEANS IS SUBSTANTIALLY HORIZONTAL WHEN SAID VALVE IS IN A CLOSED POSITION, SAID LEVER HAVING ON THE OPPOSITE SIDE OF THE FULCRUM POINT A THRUST-APPLYING END, SAID THRUST--APPLYING END BEING TURNED INWARDLY TO DEFINE A HOOK WITH ITS TIP SWUNG UPWARDLY BY LIFT OF SAID FORCE- RECEIVING END, MEANS CONNECTING SAID VALVE TO SAID HOOK TO CAUSE SAID HOOK IN UPWARD SWING TO THRUST SAID VALVE AWAY FROM THE SAID SEAT, AND THE PULL LINK MEANS DUE TO THEIR HORIZONTAL POSITION WITH RESPECT TO THE LEVER AND FLOAT GIVING TO THE LEVER AND THUS TO SAID VALVE INITIALLY A RELATIVELY GREAT OPENING FORCE WITH MOVEMENT OF SAID FLOAT IN A DIRECTION TO OPEN THE VALVE, AND THEREAFTER A GRADUALLY DIMINISHING AMOUNT OF FORCE AS SAID FLOAT CONTINUES TO MOVE IN SAID DIRECTION.