Patent ID: 7422662
Filing Date: 2008-09-09
Classification: D21F

Abstract:
1. A sealing arrangement against a moving fabric in a paper machine, the fabric supporting a paper sheet, which sealing arrangement comprises a stiff sealing element placed on a side of the fabric that faces away from the paper sheet, the sealing element covering the entire width of the fabric and comprising at least one labyrinth seal; a bellows configured for moving the sealing element relative to the fabric; wherein the sealing element is arranged on a support so that a location of the sealing element with respect to the fabric can be adjusted nearer to or further away from the fabric when the bellows expands or contracts; and wherein upon depressurization of the bellows such that the bellows contracts, the sealing element is adjusted away from the fabric by gravitational forces, and upon pressurization such that the bellows expands, the sealing element becomes adjusted nearer to the fabric by the bellows.