Patent ID: 6475345
Filing Date: 2002-11-05
Classification: D21F

Abstract:
Device for feeding a pulp suspension to a tissue machine having a pair of rolls, the device comprising:a headbox having a machine width and including top and bottom lips adapted for facing the pair of rolls, the top and bottom lips each comprising a unitary member having a first end and an oppositely disposed second end portion, the first ends of the top and bottom lips defining a slice gap forming a free flow jet of the pulp suspension, the second end portion of at least one of the top and bottom lips defining an opening extending over the machine width; at least one eccentric shaft for setting the slice gap between a minimum and a maximum height, the eccentric shaft being disposed within the opening of the at least one of the top and bottom lips and supported at several points over the machine width; and a gear motor connected to and directly driving the eccentric shaft.