Apparatus and method for thickening pulp and paper stock

Abstract From the Canadian patent

Abstract of the Disclosure Apparatus for thickening a suspension of pulp material, such particularly as paper making pulp in water employs a single pair of rolls and a single loop of wire trained around both rolls which are spaced from each other on substantially parallel axes to provide two runs of the wire therebetween. The pulp stock to be thickened is delivered into the wedge zone defined by the wire run approaching one roll and the surface of that roll so that, the pulp is trapped between the wire and roll as it travels around the roll with the wire, and the rolls are driven at sufficient speed to develop centrifugal forces which cause liquid to be expressed through the wire from the …