Means of assembling tubular elements

Claim 1

MEANS FOR ASSEMBLING TUBULAR ELEMENTS, WHICH COMPRISES THE COMBINATION OF FIRST AND SECOND TUBULAR ELEMENTS TO BE ASSEMBLED AND AN ASSEMBLY TIP FOR JOINING SAID FIRST AND SECOND TUBULAR ELEMENTS, SAID FIRST TUBULAR ELEMENT HAVING A LONGITUDINALLY PROJECTING RIM ON ITS INSIDE WALL, SAID SECOND TUBULAR ELEMENT HAVING A PROJECTING PIN ON ITS INSIDE WALL, SAID ASSEMBLY TIP HAVING A REAR PORTION AND A FORWARD PORTION, A PROJECTING ANNULAR COLLAR SEPARATING ITS REAR PORTION FROM ITS FORWARD PORTION, A LONGITUDINAL CHANNEL EXTENDING BACKWARDS FROM SAID ANNULAR COLLAR ALONG THE OUTSIDE WALL OF SAID REAR PORTION TO THE FREE END THEREOF, SAID LONGITUDINAL CHANNEL BEING ADAPTED TO RECEIVE THE LONGITUDINAL PROJECTING RIM ON THE INSIDE WALL OF SAID FIRST TUBULAR ELEMENT, AND SAID ANNULAR COLLAR FORMING A STOP WHEN SAID REAR PORTION IS FIXED IN THE EXTREMITY OF SAID FIRST TUBULAR ELEMENT, THE FORWARD PORTION OF SAID ASSEMBLY TOP HAVING A LONGITUDINAL GROOVE ON ITS OUTSIDE SURFACE EXTENDING BACKWARD FROM ITS FREE EXTREMITY AND TERMINATING IN A TRANSVERSE DEPRESSION, SAID TRANSVERSE DEPRESSION EXTENDING ON BOTH SIDES OF SAID LONGITUDINAL GROOVE, SAID LONGITUDINAL GROOVE BEING ADAPTED TO FORM A PASSAGEWAY FOR THE PROJECTING PIN ON SAID SECOND TUBULAR ELEMENT WHEN THE ASSEMBLY TIP IS INSERTED IN SAID SECOND TUBULAR ELEMENT, SAID TRANSVERSE DEPRESSION ON SAID ASSEMBLY TIP HAVING A BOTTOM PORTION OF ECCENTRIC SEMICYLINDRICAL SECTION WITH RESPECT TO SAID ASSEMBLY TIP AND FORWARD FACES ORIENTED OBLIQUELY, SAID TRANSVERSE DEPRESSION BEING ADAPTED TO RECEIVE SAID PROJECTING PIN ON EITHER SIDE OF SAID LONGITUDINAL GROOVE UPON ROTATION OF SAID ASSEMBLY TIP AND SAID SECOND TUBULAR ELEMENT WITH RESPECT TO EACH OTHER, THEREBY CAUSING DISPLACEMENT OF SAID PROJECTING PIN RADIALLY AND AXIALLY.