Patent ID: 6865918
Filing Date: 2005-03-15
Classification: B21C,B21D

Abstract:
1. A tube reduction apparatus comprising: a pair of abutting plates, each of the plates providing an X-shaped aperture therein, the X-shaped aperture comprising two pairs of opposing slots, each said slot providing a pair of opposing grooves oriented at right angles to the slot; the pair of plates in face to face contact with the X-shaped apertures and the grooves and slots aligned; a set of four wheels, each of the wheels mounted on a transverse axle and providing a V-shaped concave annular face with the apex of the V-shaped face formed as a circular portion annular notch, the circular portion annular notch radially displaced inwardly so that ends of the notch do not smoothly join the V-shaped face; the transverse axles of each one of the four wheels rotationally engaged within one of the opposing grooves of one of the slots thereby placing outer edges of the four wheels in mutual adjacency forming an approximately square passage.