Apparatus for producing oxidized filaments

Details Apparatus for producing oxidized filaments Apparatus for producing oxidized filaments

1983-10-26

1985-10-08

Yuen, Henry C.

Heating

Advancing structure flexing, looping or coiling sheet, web...

432 8, 432 77, F27B 928

Patent

active

045457620

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.

REFERENCES:
patent: 2534973 (1950-12-01), Ipsen et al.
patent: 3306594 (1967-02-01), Bauer
patent: 3385946 (1968-05-01), Hatchard
patent: 3837790 (1974-09-01), Pierson
patent: 4165964 (1979-08-01), Yonezawa et al.
patent: 4210097 (1980-07-01), Byrd et al.

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