Filtered water lubricating system for propeller shaft bearing

Claim 1

IN COMBINATION WITH A BOAT HULL INCLUDING BOTTOM MEANS DEFINING A PROPELLER SHAFT STERN TUBE BEARING RECEIVING BORE EXTENDING THERETHROUGH, A CYLINDRICAL SHAFT BEARING SNUGLY RECEIVED IN SAID BORE, SAID BEARING HAVING INNER LONGITUDINAL GROOVES FORMED IN ITS INNER SURFACES, A PLURALITY OF COMMUNICATED GROOVES FORMED IN ITS OUTER SURFACES SPACED FROM ITS OPPOSITE ENDS, AND INCLUDING MEANS COMMUNICATING SAID OUTER GROOVES WITH SAID INNER GROOVES, SAID BOTTOM MEANS INCLUDING FLUID INLET MEANS OPENING INTO SAID BEARING RECEIVING BORE AT ITS OUTLET END AND COMMUNICATED WITH AT LEAST ONE OF SAID OUTER GROOVES, THE INNER END OF SAID BEARING BEING SPACED OUTWARDLY OF THE INNER END OF SAID BORE, SHAFT STUFFING MEANS SECURED IN THE INNER END OF SAID BORE, MEANS IN SAID HULL FOR DRAWING WATER INTO SAID HULL FROM THE EXTERIOR THEREOF AND INDEPENDENTLY OF SAID LONGITUDINAL GROOVES, FILTERING SAID WATER, AND THEN DELIVERING THE FILTERED WATER TO SAID FLUID INLET MEANS UNDER PRESSURE, AND SAID BOTTOM MEANS INCLUDING FLUID OUTLET MEANS COMMUNICATING THE INNER END OF SAID BORE BETWEEN SAID BEARING AND SAID STUFFING MEANS WITH THE EXTERIOR OF SAID HULL.