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GB2017335A - Manufacture of optic fibre cable - Google Patents

Manufacture of optic fibre cable

Info

Publication number
GB2017335A
GB2017335A GB7909050A GB7909050A GB2017335A GB 2017335 A GB2017335 A GB 2017335A GB 7909050 A GB7909050 A GB 7909050A GB 7909050 A GB7909050 A GB 7909050A GB 2017335 A GB2017335 A GB 2017335A
Authority
GB
United Kingdom
Prior art keywords
tube
optical
manufacture
fibre
optic fibre
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
GB7909050A
Other versions
GB2017335B (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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Priority to GB7909050A priority Critical patent/GB2017335B/en
Publication of GB2017335A publication Critical patent/GB2017335A/en
Application granted granted Critical
Publication of GB2017335B publication Critical patent/GB2017335B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479—Manufacturing methods of optical cables
    • G02B6/4484—Manufacturing methods of optical cables with desired surplus length between fibres and protection features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479—Manufacturing methods of optical cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

In a method of manufacturing an optical cable element comprising a plastics tube in which an optical fibre and/or optical bundle is loosely housed, the tube is extruded about the optical fibre as it travels under a controlled tension in such a way that the internal diameter of the tube is greater than the diameter of the fibre. On emerging from the extruder the tube is drawn successively through preliminary cooling means which sets the tube material, heating means which causes the tube to shrink, and final cooling means which resets the material of the tube after lengthwise shrinkage has occurred. Shrinkage of the tube whilst the cable is in store is limited to an acceptable value.
GB7909050A 1978-03-15 1979-03-14 Manufacture of optical fibre cable Expired GB2017335B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7909050A GB2017335B (en) 1978-03-15 1979-03-14 Manufacture of optical fibre cable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1025778 1978-03-15
GB7909050A GB2017335B (en) 1978-03-15 1979-03-14 Manufacture of optical fibre cable

Publications (2)

Publication Number Publication Date
GB2017335A true GB2017335A (en) 1979-10-03
GB2017335B GB2017335B (en) 1982-06-23

Family

ID=26247401

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7909050A Expired GB2017335B (en) 1978-03-15 1979-03-14 Manufacture of optical fibre cable

Country Status (1)

Country Link
GB (1) GB2017335B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234392A1 (en) * 1981-09-21 1983-04-28 Western Electric Co., Inc., 10038 New York, N.Y. METHOD FOR PRODUCING AN OPTICAL FIBER CABLE, AND DEVICE FOR CARRYING OUT THE METHOD
US4414165A (en) * 1981-03-26 1983-11-08 Siemens Aktiengesellschaft Method and device for producing an optical transmission element
GB2128358A (en) * 1982-10-15 1984-04-26 Standard Telephones Cables Ltd Telecommunications cable manufacture
EP0092009A3 (en) * 1981-12-22 1984-12-05 BICC Public Limited Company Improvements in or relating to optical cable elements
US4491386A (en) * 1980-08-29 1985-01-01 Nippon Telegraph & Telephone Public Corporation Optical fiber cable and process for production thereof
EP0117594A3 (en) * 1983-02-25 1986-11-20 Philips Patentverwaltung Gmbh Method of producing a tubular wave guide and device for carrying out the method
EP0135224A3 (en) * 1983-08-11 1987-01-07 Philips Patentverwaltung Gmbh Production method for cables and cables, in particular optical cables, manufactured by this method
EP0185615A3 (en) * 1984-12-14 1987-09-09 Maillefer S.A. Process for making a fibre optic cable, cable obtained by the process and apparatus for carrying out the process
EP0785451A1 (en) * 1996-01-19 1997-07-23 Alcatel Optical cable with peripher extruded reinforcing elements
FR3093039A1 (en) * 2019-02-22 2020-08-28 Sealynx International Illuminated functional element for motor vehicle
CN118380207A (en) * 2024-02-04 2024-07-23 江苏亨通电力智网科技有限公司 High-strength weather-resistant insulating optical unit preparation process, device, optical unit and composite cable

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491386A (en) * 1980-08-29 1985-01-01 Nippon Telegraph & Telephone Public Corporation Optical fiber cable and process for production thereof
US4414165A (en) * 1981-03-26 1983-11-08 Siemens Aktiengesellschaft Method and device for producing an optical transmission element
US4859023A (en) * 1981-09-21 1989-08-22 American Telephone And Telegraph Company, At&T Bell Laboratories Sheathed optical fiber cable
DE3234392A1 (en) * 1981-09-21 1983-04-28 Western Electric Co., Inc., 10038 New York, N.Y. METHOD FOR PRODUCING AN OPTICAL FIBER CABLE, AND DEVICE FOR CARRYING OUT THE METHOD
EP0092009A3 (en) * 1981-12-22 1984-12-05 BICC Public Limited Company Improvements in or relating to optical cable elements
GB2128358A (en) * 1982-10-15 1984-04-26 Standard Telephones Cables Ltd Telecommunications cable manufacture
EP0117594A3 (en) * 1983-02-25 1986-11-20 Philips Patentverwaltung Gmbh Method of producing a tubular wave guide and device for carrying out the method
EP0135224A3 (en) * 1983-08-11 1987-01-07 Philips Patentverwaltung Gmbh Production method for cables and cables, in particular optical cables, manufactured by this method
EP0185615A3 (en) * 1984-12-14 1987-09-09 Maillefer S.A. Process for making a fibre optic cable, cable obtained by the process and apparatus for carrying out the process
US4893998A (en) * 1984-12-14 1990-01-16 Maillefer S.A. Installation for producing a fiber optic cable component
EP0785451A1 (en) * 1996-01-19 1997-07-23 Alcatel Optical cable with peripher extruded reinforcing elements
FR3093039A1 (en) * 2019-02-22 2020-08-28 Sealynx International Illuminated functional element for motor vehicle
CN118380207A (en) * 2024-02-04 2024-07-23 江苏亨通电力智网科技有限公司 High-strength weather-resistant insulating optical unit preparation process, device, optical unit and composite cable

Also Published As

Publication number Publication date
GB2017335B (en) 1982-06-23

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Legal Events

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