Pressure loaded gear pump

Claim 1

IN A PRESSURE LOADABLE GEAR PUMP, THE COMBINATION COMPRISING: A HOUSING, MEANS DEFINING A PUMPING CHAMBER IN SAID HOUSING, AN INLET LEADING TO AND AN OUTLET LEADING FROM SAID PUMPING CHAMBER; ROTATABLE PUMPING MEANS DISPOSED IN SAID PUMPING CHAMBER FOR DRAWING FLUID FROM SAID INLET, PRESSURIZING THE FLUID AND FORCING IT OUT SAID OUTLET UNDER PRESSURE, SAID PUMPING MEANS PROVIDED WITH AXIALLY EXTENDING JOURNALS; BEARING MEANS SITUATED IN SAID HOUSING AND ADAPTED FOR ROTATABLY MOUNTING SAID JOURNALS, AT LEAST ONE OF SAID BEARING MEANS BEING AXIALLY MOVABLE PRESSURE LOADABLE BEARING MEANS SAID PRESSURE LOADABLE BEARING MEANS HAVING MEANS ASSOCIATED THEREWITH DEFINING PRESSURE LOADING CHAMBERS AT THE REAR THEREOF, WHICH LOADING CHAMBER MEANS ARE ADAPTED TO BE SUBJECTED TO OUTLET PRESSURE, EACH OF SAID PRESSURE LOADABLE BEARING MEANS ALSO HAVING AN INNER PERIPHERAL BORE AT THE REAR THEREOF; FIRST FLUID COMMUNICATION MEANS BETWEEN SAID OUTLET AND SAID PRESURE LOADING CHAMBER MEANS AT THE REAR OF SAID PRESSURE LOADABLE BEARING MEANS FOR DIRECTING OUTLET FLUID PRESSURE TO SAID CHAMBER MEANS; SECOND FLUID COMMUNICATION MEANS BETWEEN SAID JOURNALS AND SAID INLET FOR DIRECTING JOURNAL LEAKAGE TO SAID INLET; FLUID PRESSURE CONFINING MEANS CARRIED BY SAID HOUSING, SAID PRESSURE CONFINING MEANS COMPRISING TUBULAR MEANS WHICH EXTEND CIRCUMFERENTIALLY AROUND SAID JOURNALS CARRYING SAID PRESSURE LOADABLE BEARING MEANS AND THROUGH SAID LOADING CHAMBER MEANS AT THE REAR OF SAID PRESSURE LOADABLE BEARINGS AND INTO SAID INNER PERIPHERAL BORE AT THE REAR OF SAID PRESSURE LOADABLE BEARING, SAID PRESURE CONFINING MEANS HAVING SEALING MEANS ASSOCIATED THEREWITH AND ADAPTED TO SEAL SAID CHAMBER MEANS FOR SAID JOURNALS, SAID TUBULAR MEANS ADAPTED TO OVERLAY SAID AXIALLY MOVABLE PRESSURE LOADABLE BEARINGS WHEREBY OUTLET PRESSURE WILL BE COMMUNICATED TO SAID LOADING CHAMBER AND IN TURN TO THE REAR OF SAID AXIALLY MOVABLE BEARINGS TO URGE SAID BEARINGS ALONG SAID JOURNALS INTO SEALING ENGAGEMENT WITH SAID ROTATABLE PUMPING MEANS