Abstract: A condenser (1) for separating fibers from a fiber laden air flow is disclosed which includes a cell wheel housing (3) and a cell wheel (4). The cell wheel includes a plurality of radial vanes (6) and a perforated screen (12) extending between adjacent vanes. The perforated screen separates the space between the adjacent vanes into fiber entraining cells (14) and air exit spaces (13). Flexible sealing element (7) are carried at the ends of vanes which seal against an interior of the wheel housing. Air from the fiber laden air flow exits through screens (12) by way of a discharge opening (18). Fibers are discharged at (9) through an opening provided in the bottom of cell wheel housing (3).

Abstract: From a device (46) for opening pressed bales of fiber material set up in a row (39, 40), the opened fiber material is conveyed pneumatically (55) to a hopper feeder (1). A receiving chamber (13) and upwardly extending inclined spiked feed lattice (3) are provided in hopper feeder (1) for delivering fiber to a processing machine via outlet (8). The delivery of the fiber material, removed continuously from the row of bales, to receiving chamber (13) of hopper feeder (1) is performed transversely to the latter, and in parallel to spiked feed lattice (3). In another embodiment a filling chamber (13a) may be advantageously compartmentalized by transverse walls (57, 58) and provided with a bottom conveyor (56). Fiber is removed in a height direction from a longitudinal face of the fiber bed formed in filling chamber (13a) of fiber feeding device (19).