Method for optical fibre manufacture

Details Method for optical fibre manufacture Method for optical fibre manufacture

1988-02-19

1989-01-31

Lindsay, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 13, 65 29, C03B 37027

Patent

active

048013242

ABSTRACT:
In the manufacture of high quality optical fibre for telecommunications, a preform (1) is advanced towards a furnace (9) until a tip detector (5) automatically stops the preform (1) at a predetermined position (11) in front of the furnace to provide a reference datum for a second mode of operation in which the computer (12) can be initiated manually (12B) to advance (4) the preform (1) by a predetermined amount into the furnace to commence drawing the optical fibre. Preferably the tip detector is a paddle (6) pivotally mounted (7) and operates an optical sensor (8).

REFERENCES:
patent: 3791172 (1974-02-01), Manfre et al.
patent: 4410344 (1983-10-01), Lyengar

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