Patent ID: 6402896
Filing Date: 2002-06-11
Classification: D21F,F26B

Abstract:
A roll for dewatering a web in a paper or board machine comprising axle journals supported by which the roll is arranged to revolve end flanges to which the axle journals are connected, a mantle having an outer surface, and countersink, the mantle being connected to the end flanges and a number of opening extending through the mantle or recesses formed into the outer surface of the mantle, which openings or recesses form a regular pattern, and solid connecting portions in the outer surface of the mantle around said openings, which are holes, or around said recesses, which are blind-drilled bores, are opened so that, from each opening or recess or from their countersink, there is a connection, provided in the form of a groove or an additional recess extending into the outer surface of the roll mantle, with at least each of the openings or recesses or their countersinks adjacent to it.