DEFLECTION COMPENSATING ROLL FOR PROVIDING UNIFORM CONTACT PRESSURE

摘要

IN THE UNITED STATES PATENT AND TRADEMARK OFFICE PATENT APPLICATION OF: HARVEY F. GEORGE and ROBERT H. OPPENHEIMER FOR: DEFLECTION COMPENSATING ROLL FOR PROVIDING UNIFORM CONTACT PRESSURE A system for compensating for roll deflection to provide uniform contact pressure across the width of a web disposed between a pair of counter, rollers, comprising a first roller mounted for rotation, a second roller mounted for rotation about a deflectable shaft, pressure applying means coupled to the ends of the deflectable shaft for moving the second roller into contact with the first roller, the second roller including an outer shell mounted for rotation relative to the deflectable shaft, a pair of end bearings disposed adjacent the ends of the outer sleeve and a pair of main bearings disposed inwardly from the end bearings a predetermined distance to transmit the applied pressure uniformly over the face width of the second roller when the second roller is used with a flexible first roller, and self-adjusting deflection compensating means arranged proximate to the deflectable shaft for applying pressure to the ends of the outer shell in response to the deflection of the deflectable shaft by the pressure applying means to provide uniform pressure across the face width of the second roller when the second roller is used with a first roller having a high resistance to bending.