Abstract: A filter (1) with several rotating filter discs (3) mounted on a shaft (2) and which are provided with a porous filter medium. In one aspect it is characterised by elastomer elements (8, 8?) being mounted on the shaft (2) as spacers between the individual filter discs (3). In another aspect, the invention refers to a filter disc (3) for a filter (1) of this kind, wherein the disc (3) has a rigid support body with distinct drainage channels (21) leading to a central opening for receiving the shaft (2) and an attached surrounding filter medium or membrane (23).

Abstract: The invention refers to a filter 1 with several rotating filter discs 3 mounted on a shaft 2 and which are provided with a porous filter medium. It is characterized by elastomer elements (8, 8?) being mounted on the shaft (2) as spacers between the individual filter discs (3). In addition, the invention refers to a filter disc 3 for a filter 1 of this kind.

Abstract: The invention refers to a filter 1 with several rotating filter discs 3 mounted on a shaft 2 and which are provided with a porous filter medium. It is characterised by elastomer elements (8, 8′) being mounted on the shaft (2) as spacers between the individual filter discs (3). In addition, the invention refers to a filter disc 3 for a filter 1 of this kind.

Abstract: Apparatus for the crushing or grinding of fibrous material, wet or mixed with water, preferably chips, with an engine-driven horizontally supported rotor having at least two crushing or grinding elements or grinding plates whose surfaces are inclined to the rotor axis of extend approximately normally thereto, and have diameters increasing away from at least one material feed which is directed approximately radially to the rotor axis or approximately tangentially to the rotor or stator, and a housing receiving the rotor having corresponding inner wall and opposing crushing or grinding surface or grinding plates forming grinding gaps inclined to the rotor axis or extending approximately normally thereto and being adjustable between crushing or grinding elements or grinding plates of the rotor as well as corresponding opposing crushing or grinding elements or grinding plates or the like of the interior housing walls.