Coupling

Claim 1

A HOSE AND COUPLING ASSEMBLY CONNECTABLE TO A FITTING HAVING A BORE, WHICH FITTING HAS A THREADED PORTION ADJACENT ITS END AND THE BORE INCLUDING AN ENLARGED CONICAL SECTION TERMINATING IN AN ANNULAR FACE AT RIGHT ANGLES TO THE LONGITUDINAL AXIS OF THE BORE, THE HOSE AND COUPLING ASSEMBLY COMPRISING A TUBE OF RESILIENT MATERIAL, A COVERING MOVABLY MOUNTED ON THE TUBE HAVING A LENGTH LESS THAN THE TUBE AND POSITIONED RELATIVE TO THE TUBE TO ALLOW AT LEAST ONE END OF THE TUBE TO PROJECT BEYOND THE COVER, A MOVABLE PRESSURE SLEEVE CONNECTED TO THE COVER AT THE END FROM WHICH THE TUBE PROJECTS SLIDABLY MOUNTED ON THE TUBE, A TAKE-UP NUT CARRIED BY THE PRESSURE SLEEVE AND THREADEDLY ENGAGEABLE WITH THE THREADED PORTION OF THE FITTING, AN ANNULUS RIGIDLY FIXED ABOUT THE PROJECTING END OF THE TUBE SPACED FROM THE OUTER END OF THE TUBE AT A DISTANCE SUFFICIENT TO ENABLE THE END OF THE TUBE TO ENGAGE THE ANNULAR FACE OF THE BORE IN THE FITTING AT LEAST SIMULTANEOUSLY WITH THE ENGAGEMENT OF THE ANNULUS WITH THE CONICAL SECTION OF THE TUBE WHEN THE TUBE IS INSERTED INTO THE BORE IN THE FITTING, A SHAPE RETAINING SLEEVE INSERTED WITHIN THE PROJECTING END OF THE TUBE AND SPACED FROM THE OUTER END OF THE TUBE SO THAT THE OUTER END OF THE TUBE IS UNSUPPORTED AND MEANS ON THE PRESSURE SLEEVE TO BEAR AGAINST THE ANNULUS WHEN THE TAKE-UP NUT IS THREADED INTO THE THREADED PORTION OF THE FITTING TO MOVE THE OUTER END OF THE TUBE INTO COMPRESSIVE ENGAGEMENT WITH THE ANNULAR FACE OF THE FITTING AND TO MOVE THE ANNULUS INTO ENGAGEMENT WITH THE ENLARGED CONICAL SECTION OF THE BORE IN THE FITTING.