Pipe connection

Claim 1

A PIPE HAVING AN ANNULAR UNION BOX AT ONE END AND AN ANNULAR UNION PIN AT THE OTHER END, SAID BOX HAVING AN INTURNED RADIAL FLANGE AND SAID PIPE HAVING AT SAID ONE END A PAIR OF EXTERNAL UPSET BUCKLED FLANGES BETWEN WHICH SAID RADIAL FLANGE OF THE BOX IS HELD FIXEDLY AGAINST BOTH AXIAL MOTION AND ROTATION, SAID BUCKLED FLANGES BEING SPACED AXIALLY FROM THE END FACE OF SAID ONE END OF THE PIPE LEAVING A TIP THEREBETWEEN, SAID BOX HAVING AN UNTHREADED PORTION ADJACENT SAID INTURNED FLANGE, SAID UNTHREADED PORTION INCLUDING A TAPERED BOTTOM CONVERGING TOWARD SASID INTURNED FLANGE, THERE BEING A RUBBER SEAL RING DISPOSED IN THE ANNULUS BETWEEN SAID UNTHREADED PORTION AND SAID TIP, SAID BOX HAVING A THREADED PORTION ADJACENT SAID UNTHREADED PORTION, SAID THREADED PORTION HAVING A FLAT CRESTED THREAD WITH STEEP FLANKS AND THE THREAD RUNOUT ADJACENT SAID UNTHREADED PORTION PROVIDINGA RIGHT ANGLE SHOULDER SPACED AXIALLY BEYOND SAID END FACE OF THE PIPE, SAID OTHER END OF THE PIPE HAVING A PAIR OF AXIALLY SPACED AN NULAR OUTWARDLY PROJECTING PORTIONS BETWEEN WHICH SAID PIN IS ROTATABLY AND AXIALLY SLIDABLY DISPOSED, THE ONE OF SAID PROJECTING PORTIONS NEAREST THE END FACE OF SAID OTEHR PIPE END BEING DISPOSED AT THE EXTREME OUTER END THEREOF AND COMPRISING AN EXTERNALLY UPSET BUCKLED FLANGE, ONE END OF SAID PIN BEING ADPATED TO BEAR AGAINST SAID FLANGE, A PORTION OF SAID PIN ADJACENT SAID ONE END OF THE PIN BEING THREADED CORRELATIVE TO THE BOX THREAD, THE CREST DIAMETER OF THE PIN THREAD EXCEEDING THE DIAMETER OF SAID FLANGE ON SAID OTHER END OF THE PIPE, SAID PN HAVING A LARGER DIAMETER PORTION ADJACENT SAID THREADED PORTION, THERE BEING A SHOULDER FORMED THEREBETWEEN ADAPTED TO ENAGE THE END FACE OF A BOX LIKE SAID BOX BUT ON ANOTHER PIECE OF PIPE IN WHICH POSITION SAID ONE OF SAID OUTWARDLY PROJECTING PORTIONS IS ADAPTED TO ENGAGE THE RUBBER SEAL RING LIKE SAID SEAL RING BUT ON SAID OTHER PIECE OF PIPE AND COMPRESS SAME AXIALLY TO FORM A SEAL THEREWITH AND TO FORCE SAME INTO THE ANNULUS INSIDE A BOX LIKE SAID BOX BUT ON SAID OTHER PIECE OF PIPE TO COMPRESS THE SEAL RING TO SEAL WITH THE TIP OF SAID OTHER PIPE, SAID ANNULAR OUTWARDLY PROJECTING FLANGE AT SAID OTHER END OF THE PIPE BEING SPACED AXIALLY FROM SAID EXTREMITY OF THE OTHER END OF THE PIPE LEAVING A TIP THEREBETWEEN, SAID PIPE INCLUDING A METAL BODY PORTION WITH A RUBBER LINING EXTENDING TO THE END FACES AT THE ENDS OF THE PIPE AND TURNED BACK OVER SAID TIP AST SAID ONE END AND SAID TIP AT THE OTHER END FORMING CUFFS, AND SAID PIPE FURTHER INCLUDING A STEEL COLLAR OVER THE CUFF OKN THE FIRST SAID TIP, AND A SECOND COLLAR AROUND THE CUFF ON THE SECOND SAID TIP, SAID SECOND COLLAR INCLUDING A RUBBER BODY IN SEALING ENGAGEMENT WDITH SAID CUFF AND A METAL HOOP THEREAROUND, SAID SECOND COLLAR BEING DISPOSED AT THE EXTREME END OF SAID OTHER END OF SAID PIPE.