Abstract: To provide a sheet former capable of suitably regulating the thickness of a sheet forming body in a width direction in response to factors changing with time. A sheet former includes at least one vessel which stores slurry as a raw material, a wire cylinder immersed in the slurry inside the vessel and making sheets from solid components in the slurry while being rotated, and a sheet-forming amount regulator which regulates an amount of the solid components for making sheets by the wire cylinder in a width direction in accordance with a thickness of a sheet forming body in the approximately width direction formed for making sheets by the wire cylinder.

Abstract: A conventional Oliver board forming machine is provided with a second trough which places a second slurry of fibrous material on the Oliver roll to form a board structure of two separate distinct layers.The second trough has an inclined chute forming the side of the trough adjacent the Oliver roll. The chute is pivoted at one end to the second trough and its opposite end rests against the top surface of the fiber deposition on the circumference of the Oliver roll.

Abstract: Pulp vat apparatus for applying pulp to a plurality of conductors in which a pulp vat has a cylinder mould with axially spaced annular perforate regions, one for each conductor, and the vat is divided by partitions into compartments, one for each perforate region. There is a flow inlet for pulp into each compartment and means to vary the pulp flow rate through each inlet independently of the flow rate through the other inlets whereby the level of pulp in each compartment is variable independently of the other compartments.