GB2001050A - Method of and apparatus for producing a glass fibre bundle for use in optical communications systems - Google Patents

Method of and apparatus for producing a glass fibre bundle for use in optical communications systems

Info

Publication number
GB2001050A
GB2001050A GB7828353A GB7828353A GB2001050A GB 2001050 A GB2001050 A GB 2001050A GB 7828353 A GB7828353 A GB 7828353A GB 7828353 A GB7828353 A GB 7828353A GB 2001050 A GB2001050 A GB 2001050A
Authority
GB
United Kingdom
Prior art keywords
rods
fibres
bundle
furnace
fibre bundle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7828353A
Other versions
GB2001050B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pilkington Group Ltd
Original Assignee
Pilkington Brothers Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pilkington Brothers Ltd filed Critical Pilkington Brothers Ltd
Priority to GB7828353A priority Critical patent/GB2001050B/en
Publication of GB2001050A publication Critical patent/GB2001050A/en
Application granted granted Critical
Publication of GB2001050B publication Critical patent/GB2001050B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/028—Drawing fibre bundles, e.g. for making fibre bundles of multifibres, image fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/02—External structure or shape details
    • C03B2203/06—Axial perturbations, e.g. twist, by torsion, undulating, crimped

Abstract

To reduce breakage of fibres in optical glass fibre bundles during manufacture caused by formation of loops in the fibre during sheathing, a twist is imparted to the fibre bundle during its formation. The apparatus of the invention includes a furnace (1), a retaining member (4) for holding clad glass rods (2) in a predetermined spaced relationship one to the other, a guide member (5) adjacent the furnace for maintaining the rods in said spaced relationship, member (4) being movable with respect to member (5) and connected to a drive means for passing the rods into the furnace, means (12) for drawing the rods into fibres (3) and forming the drawn fibres into a fibre bundle (3'), and means for causing relative rotation of the members (4) and (5) with respect to means (12), so as to impart a twist to the bundle (3') as the fibres are drawn from the rods and formed into the bundle. <IMAGE>
GB7828353A 1977-07-13 1978-06-29 Method of and apparatus fo producing a glass fibre bundle for use in optical communications systems Expired GB2001050B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7828353A GB2001050B (en) 1977-07-13 1978-06-29 Method of and apparatus fo producing a glass fibre bundle for use in optical communications systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2947077 1977-07-13
GB7828353A GB2001050B (en) 1977-07-13 1978-06-29 Method of and apparatus fo producing a glass fibre bundle for use in optical communications systems

Publications (2)

Publication Number Publication Date
GB2001050A true GB2001050A (en) 1979-01-24
GB2001050B GB2001050B (en) 1982-01-27

Family

ID=26259932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7828353A Expired GB2001050B (en) 1977-07-13 1978-06-29 Method of and apparatus fo producing a glass fibre bundle for use in optical communications systems

Country Status (1)

Country Link
GB (1) GB2001050B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980002139A1 (en) * 1979-03-29 1980-10-16 A Regreny Apparatus for the multiple drawing of fibers allowing the simultaneous drawing of a plurality of optical fibers,then the multifiber cabling on line
EP0030542A1 (en) * 1979-06-11 1981-06-24 Western Electric Company, Incorporated Method for monitoring optical fiber processing
US4473273A (en) * 1981-09-04 1984-09-25 Trw Inc. High bandwidth fiber and method of forming the same by preform rotation during drawing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980002139A1 (en) * 1979-03-29 1980-10-16 A Regreny Apparatus for the multiple drawing of fibers allowing the simultaneous drawing of a plurality of optical fibers,then the multifiber cabling on line
JPS56500294A (en) * 1979-03-29 1981-03-12
DE3041446C2 (en) * 1979-03-29 1989-03-02 Alain Lannion Fr Gouronnec
EP0030542A1 (en) * 1979-06-11 1981-06-24 Western Electric Company, Incorporated Method for monitoring optical fiber processing
EP0030542A4 (en) * 1979-06-11 1981-10-13 Western Electric Co Method for monitoring optical fiber processing.
US4473273A (en) * 1981-09-04 1984-09-25 Trw Inc. High bandwidth fiber and method of forming the same by preform rotation during drawing

Also Published As

Publication number Publication date
GB2001050B (en) 1982-01-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee