Guide bearing and rod seal

Claim 1

IN A CYLINDER CONSTRUCTION FOR PRESSURE FLUID OPERATION HAVING PISTON AND ROD MEANS, THE IMPROVEMENT IN MEANS FOR MOUNTING, GUIDING AND SEALING SAID ROD WITH RESPECT TO THAT END OF THE CYLINDER THROUGH WHICH SAID ROD PASSES, COMPRISING IN COMBINATION: AN END FITTING HAVING AN OPENING THERETHROUGH FOR THE PASSAGE OF SAID ROD, THE OUTER END OF SAID OPENING BEING ENLARGED TO PROVID A RECESS AND A SHOULDER BETWEEN SAID RECESS AND THE REMAINDER OF SAID OPENING; A SUPPORT MEMBER HAVING A THREADED OPENING THERETHROUGH AND ARRANGED AXIALLY OUTWARDLY OF SAID END FITTING AND HELD IN FIXED AXIAL RELATIONSHIP WITH RESPECT THERETO; A CARTRIDGE CASING HAVING AN AXIAL INNNER END PORTION WHOSE EXTERNAL WALL SLIDABLY ENGAGES THE RADIAL WALLS OF SAID RECESS AND HAVING EXTERNAL THREADING ENGAGING THE THREADED OPENING IN SAID SUPPORT MEMBER, RETAINING MEANS EXTENDING RADIALLY INWARDLY FROM THE AXIALLY OUTER END OF SAID CARTRIDGE CASING, AN OUTER BUSHING SNUGLY RECEIVED WITHIN THE OUTER END OF SAID CASING AND SEATED SOLIDDLY AGAINST SAID RETAINING MEANS, RESILIENT PACKING MEANS LOCATED ADJACENT SAID OUTER BUSHING AND HAVING ONE OF ITS ENDS SEATED ENDWISE THEREAGAINST AND AN INNER BUSHING BEARING AXIALLY AGAINST SAID PACKING MEANS AND RADIALLY AGAINST THE OTHER END OF SADI CARTRIDGE CASING, THE AXIALLY INNER END OF SAID INNER BUSHING EXTENDING INWARDLY BEYOND THE INNER END OF SAID CASING FOR BEARING AGAINST SAID SHOULDER RECESS; WHEREBY UPON SCREWING OF SAID CARTRIDGE CASING INWARDLY WITH RESPECT TO SAID SUPPORT MEMBER, THE INNER BUSHING WILL ENGAGE SAID SHOULDER AND BE URGED AXIALLY OUTWARDLY WITH RESPECT TO SAID CASING FOR COMPRESSING SAID PACKING.