Heated variable crown roll

Abstract From the Canadian patent

A controlled deflection roll for operating at a predetermined heated temperature including a roll shell rotatably journalled on a shaft with the roll shell supported along its length on a piston in a chamber in the shaft and support oil delivered beneath the piston and passing into pockets on the outer surface of the piston to support the roll shell heated oil, delivered to the spaced between the shaft and roll shell and an, annular chamber of insulating oil at the ends of the roll shell between the shell and the end bearings.