Method of and an apparatus for cooling an optical fibre

Details Method of and an apparatus for cooling an optical fibre Method of and an apparatus for cooling an optical fibre

C - Chemistry, Metallurgy

03

B

26/197, 49/40

C03B 37/01 (2006.01) C03B 37/027 (2006.01)

Patent

CA 1315534

Abstract A method of and an apparatus for cooling an optical fibre drawn from a heated glass blank by passing the fibre (3) through a cooling pipe (9) in which a cool- ing gas (A) flows in the axial direction of the fibre around it. In order to reduce the consumption of cool- ing gas, the cooling gas is caused to flow turbu- lently (B) around the fibre by means of a throttle point (20) formed by a partition wall (19) in the cooling pipe, so that a laminar flow of cooling gas around the fibre is prevented and the transfer of heat between the cooling gas and the fibre is improved.

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