Abstract: In apparatus for stripping a fibrous web from the doffer of a carding machine, provision is made for pneumatically assisting the dragging rollers to remove web from the stripping roller. This is achieved by directing air impulses towards a dragging roller from within the stripping roller. An air chamber within the stripping roller is arranged such that the impulses are directed in a predetermined direction, as apertures in the stripping roller register therewith. Carding cloth covering the stripping roller has appropriately, toothed, stepped windings.

Abstract: A pneumatic dust collecting system for a fiber processing machine which includes a tank having a chamber therein within which separate streams of dust and reusable fibrous material are received and collected. The tank contains an air expansion compartment adjacent the receiving and collecting chamber and shares a common wall which functions as a filter. A blower assembly is positioned within the tank and is adapted to apply suction to the air expansion compartment so as to draw air from the chamber via the compartment and to force a stream of pressurized air from the tank to an air pressure stabilizing chamber located adjacent one end of the fiber processing machine. An air manifold having a plurality of spaced discharge nozzles is connected to the air pressure stabilizing chamber and is adapted to discharge a blanket of air beneath the machine.