Abstract: A winding apparatus for multifilament fiber bundles wherein a plurality of fiber bundles are wound on a plurality of winders corresponding to each fiber bundle. A common waste yarn winder is provided independently from the winders, and the fiber bundles to be wound first are wound concurrently as waste yarn. Next, the fiber bundles being wound on the waste yarn winder are detached one by one sequentially from the waste yarn winder and then wound on the winders corresponding to each fiber bundle.

Abstract: An apparatus for continuously producing continuous oxidized filaments (1) including a series of lower guide rollers (3a, 3b, 3c . . . ) for guiding filaments provided at the outside of the furnace (2) and a series of gas suction seal chambers (8a, 8b, 8c . . . ) provided at the lower portion in the furnace. The gas suction seal chambers have a series of sub-partition plates (23a, 23b, 23c . . . ) which are arranged along the path of the filaments and are provided with gas passing means. The external air which tends to go into the furnace through the slits (10) formed in the bottom wall (20) of the furnace will be drawn into the gas suction seal chambers and prevented from entering the heated oxidizing atmosphere in the furnace. According to the sealing effect, the temperature variance in the furnace will be reduced and the quality of produced filaments will be improved.