Apparatus for controlling lightguide fiber tension during drawin

Details Apparatus for controlling lightguide fiber tension during drawin Apparatus for controlling lightguide fiber tension during drawin

1984-06-15

1986-03-25

Bashore, S. Leon

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 12, 65356, C03B 2304

Patent

active

045780986

ABSTRACT:
A lightguide furnace (10) includes a tube (32) at its base. The tube (32) has at least one opening (34) therethrough, in communication with, but substantially misaligned relative to, a corresponding opening (40) through a sleeve (36) coaxially aligned with, and rotatable about the tube (32). The substantial misalignment between each sleeve opening (40) and each tube opening (34) causes the cooling gas entering the furnace to be directed at least partially around the lightguide fiber (14). The cooling gas passes upwardly along the walls of the furnace away from the lightguide fiber (14) to reduce the likelihood of contamination thereof by particulates in the cooling gas. By rotating the sleeve (36) relative to the tube (32), the degree of misalignment of the sleeve openings (40) relative to the tube openings (34) can be adjusted to control the lightguide fiber cooling to regulate the tension.

REFERENCES:
patent: 35269 (1862-05-01), Tainter
patent: 3045278 (1962-07-01), Potter
patent: 4030901 (1977-06-01), Kaiser
patent: 4101300 (1978-07-01), Imoto et al.
patent: 4383843 (1983-05-01), Iyengar
patent: 4400190 (1983-08-01), Briere
patent: 4407666 (1983-10-01), Briere
patent: 4437870 (1984-03-01), Miller

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