Abstract: A filtration apparatus for thermoplastic synthetic plastics material comprises a housing (1) in which a carrier body (4) formed by a piston, for two screen nests (8,9) is bearingly supported for displacement in direction of its axis. In the filtration position the melt streams from a supply channel (2) via inflow channels (10 to 13) into distribution spaces (14,15) located in front of the screen nests (8,9), then through the screens and via outflow channels (18,19) into a discharge channel (3). Each distribution space (14,15) is subdivided by at least one wall (21) and into each of the so formed compartments terminates an inflow channel (10 to 13).

Abstract: An apparatus for processing thermoplastic synthetic plastic material includes a receptacle in which a rotating tool circulates around an axis. The axis of rotation may be offset with respect to the axis of the receptacle by a predetermined amount. From the receptacle, the comminuted material is conveyed by the rotating tool into the inlet opening of a screw-type extruder which has an axis that is offset relative to a parallel radius of the receptacle. The offset arrangement allows the rotating tool improves the flow of the processed material into the screw-type extruder.

Abstract: Apparatus for processing synthetic thermoplastic material comprises a receiver having a vertical axis, a disintegrating and mixing tool which is disposed in the receiver near the bottom thereof and rotatable about the axis of the receiver, and at least one screw extruder, which extends through an opening in the shell of the receiver into the latter adjacent to the disintegrating and mixing tool. To ensure that the screw extruder can be filled uniformly and that such filling will be independent in a high degree from the level to which the receiver is filled, the screw extruder extends at least approximately radially of the axis of the receiver and that end of the screw extruder which extends into the receiver is axially spaced above the disintegrating and mixing tool.

Abstract: Apparatus for processing synthetic thermoplastic material, such as sheeting, hollow bodies, and splinters, comprises an upright receiving container, which is adapted to be charged from above, and at least one disintegrating and blending member, which is set with knives and is mounted on the container near its bottom and rotates about the axis of the container. The receiving container has in its side wall an opening which is disposed on the level of the disintegrating and blending member and leads to a screw extruder, which is tangential to the receiving container and directly connected thereto.