1. TUBE AND BAR BENDING APPARATUS COMPRISING MEANS FOR CONTINUOUSLY MOVING A TUBE AND THE LIKE LONGITUDINALLY THERETHROUGH, A PAIR OF DIES SPACED LONGITUDINALLY IN THE PATH OF THE MOVING TUBE, TUBE-CLAMPING MEANS ASSOCIATED WITH EACH OF SAID DIES, A THIRD DIE LOCATED BETWEEN SAID PAIR OF DIES AND MOVABLE TRANSVERSELY ACROSS THE PATH OF SAID TUBE, EACH OF SAID PAIR OF DIES AND SAID THIRD DIE BEING MOVABLE TOWARD AND FROM EACH OTHER LONGITUDINALLY OF THE PATH OF THE MOVING TUBE, AND MEANS ACTUATED BY THE MOVEMENT OF THE TUBE FOR OPERATING SAID CLAMPING MEANS AND MOVING SAID THIRD DIE PERPENDICULAR TO THE PATH OF THE TUBE TO CONTINUOUSLY FORM SUCCESSIVE V-SHAPED BENDS IN THE CONTINUOUSLY MOVING TUBE.