| abstract |
The present application describes a system (1) consisting of a fixed axis (11) on which are welded two fixed half-jaws (5,6) and which have a diameter equal to that of the tubes to be joined. On each of these half jaws (5,6) are welded two pieces (12,13) consisting of two walls (12 ', 12 ", 13', 13") carrying between each of them an axis (14,15) around which the clamping systems (9, 10) can pivot. The two ends (16, 17) of the axis (11) have a smaller diameter over a short distance, making it possible to place two sleeves (18, 19) which can pivot around this axis (11) and on which are the two mobile half-jaws (7, 8), movable jaws on which are welded two U-shaped pieces (20, 21) intended to receive the threaded clamping systems (9, 10), clamped by the intermediate nuts (22,23). |