Patent ID: 7597200

Claim:
An apparatus for dry-distributing fibre materials in the formation of a course of fibre material on a moving forming wire mesh, comprising: a suction box disposed under said wire mesh, a forming head disposed above the wire mesh in the form of an elongated box extending transversely to the wire mesh, and which has an air inlet at the top and is open down towards the wire mesh, and which contains a pair of rotating, perforated drums from which at least one of their ends a stream of air-fluidised fibre is supplied, and cover plate parts ( 18 ) disposed in an upper space of the forming head, in an area at a level between a horizontal diametrical plane of the perforated drums and an upper horizontal tangential plane of the perforated drums, for substantial shielding-off of the down-flow of inlet air to the slot areas respectively between the drums and between the drums and the adjacent walls of the box, thereby increasing the concentration of the air supply directly down through the drums.