Patent ID: 7300018
Filing Date: 2007-11-27
Classification: B21B,B21C,B65H

Abstract:
1. A method for stabilising high speed running of a metal band along a longitudinal running direction, the band ( 4 ) being applied from a line of contact ( 30 ), over at least one angular sector of rotary revolution surface ( 3 ) around an axis ( 20 ) crosswise to the running direction, and connecting tangentially to the rotary surface ( 3 ) while forming, on the upstream side in the running direction, a dihedron (G) delineated, on one side by an outer face ( 31 ) of the rotary surface ( 3 ) and on the other side, by an inner face ( 41 ) of the band ( 4 ) along which a portion of the surrounding air forms a boundary layer ( 43 ) trapped with the band ( 4 ) toward the line of contact ( 30 ), a the method comprising positioning a device upstream of a spool ( providing the device as a hollow deflecting member ( modifying the conditions of circulation of the air in the upstream dihedron (G) the hollow deflecting member ( tilting the first face ( installing the deflecting member ( maintaining the deflecting member (