GB1526777A - Method and apparatus for sheathing fibres - Google Patents

Method and apparatus for sheathing fibres

Info

Publication number
GB1526777A
GB1526777A GB46726/75A GB4672675A GB1526777A GB 1526777 A GB1526777 A GB 1526777A GB 46726/75 A GB46726/75 A GB 46726/75A GB 4672675 A GB4672675 A GB 4672675A GB 1526777 A GB1526777 A GB 1526777A
Authority
GB
United Kingdom
Prior art keywords
fibre
sheath
guide tube
fluid
capstan
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.)
Expired
Application number
GB46726/75A
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
Priority to SE7511976A priority Critical patent/SE403536B/en
Application filed by Pilkington Brothers Ltd filed Critical Pilkington Brothers Ltd
Priority to GB46726/75A priority patent/GB1526777A/en
Publication of GB1526777A publication Critical patent/GB1526777A/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
    • 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
    • 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
    • B29C48/06—Rod-shaped
    • 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
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated

Landscapes

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

Abstract

1526777 Optic fibres PILKINGTON BROS Ltd 1 Dec 1976 [12 Nov 1975] 46726/75 Heading G2J [Also in Division B5] A fibre, e.g. a glass optical fibre, or bundle of glass optical fibres, 11a, Fig. 1 is provided with an extruded enveloping plastics sheath 6, which preferably envelopes the fibre(s) at a clearance by feeding the fibre into the sheath 11 issuing from an annular extruder die head outlet 6 and drawing the sheath with the fibre through a fluid cooling bath, the feeding of the fibre being effected through a guide tube 12 of the die head, through which air or silicone fluid is continuously fed from a location or locations 18 along its length, so that at least part of the fluid flows in the direction opposite to fibre movement to remove dust and particles adhering to the fibre at the entry 24 to the guide tube, and part of the fluid may also flow in the direction of fibre movement to act as a barrier preventing abrasion of the fibre against the guide tube, and preventing ingress of the extruding plastics to the guide tube or the base of the mandril 1 in which it is located. The process may provide a sheathed single fibre with a clearance from the sheath of 0.1 to 2 times the fibre diameter, and the sheath may comprise polyvinylchloride, polyimides, polycarbonates, polyethersulphones, silicone rubbers, or other synthetic rubbers. Various constructions of guide tube are described (see Division B4-5). The sheathing may be effected, Fig. 7, on a fibre 11a supplied continuously by drawing from a rod 42 in a heated furnace 43, by means of a capstan 44 and accumulator 45. Alternatively the fibre may be supplied from a drum driven at an adjustable speed, Fig. 6 (not shown) and a guide, and the sheathed fibre may be drawn from the die under freely rotatable rollers in a cooling bath, by a constant tractive force exerted by a capstan from which the fibre passes to a spool at a tension controlled by a unit located between the capstan and spool.
GB46726/75A 1974-10-29 1976-12-01 Method and apparatus for sheathing fibres Expired GB1526777A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE7511976A SE403536B (en) 1974-10-29 1975-10-27 WAY TO MANUFACTURE A SEMICONDUCTOR DEVICE
GB46726/75A GB1526777A (en) 1976-12-01 1976-12-01 Method and apparatus for sheathing fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB46726/75A GB1526777A (en) 1976-12-01 1976-12-01 Method and apparatus for sheathing fibres

Publications (1)

Publication Number Publication Date
GB1526777A true GB1526777A (en) 1978-09-27

Family

ID=10442363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46726/75A Expired GB1526777A (en) 1974-10-29 1976-12-01 Method and apparatus for sheathing fibres

Country Status (1)

Country Link
GB (1) GB1526777A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049156A2 (en) * 1980-10-01 1982-04-07 BICC Public Limited Company Method of and arrangement for manufacturing an optical cable element
FR2497142A1 (en) * 1980-12-29 1982-07-02 Cany Leon MACHINE FOR THE CONTINUOUS PRODUCTION OF A RING TUBE CONTAINING AN INTERIOR THREAD
GB2123978A (en) * 1982-07-12 1984-02-08 Telephone Cables Ltd Optical fibre cable
EP0119490A1 (en) * 1983-02-22 1984-09-26 Siemens Aktiengesellschaft Device for manufacturing a light guide element
US4474638A (en) * 1982-02-26 1984-10-02 Siemens Aktiengesellschaft Device for manufacturing electrical and optical cables
EP0160632A1 (en) * 1984-03-20 1985-11-06 Kabelwerk Eupen AG Cablerie d'Eupen SA Kabelfabriek Eupen NV Method and apparatus for the production of a flexible protection tube into which is drawn a wire
EP0171127A1 (en) * 1984-03-15 1986-02-12 Celanese Corporation Extrusion coating apparatus
GB2169722A (en) * 1985-01-11 1986-07-16 Telephone Cables Ltd Manufacture of optical fibre cables using gas feed
EP0211976A1 (en) * 1985-08-13 1987-03-04 Sumitomo Electric Industries Limited Method for producing an optical sensor
GB2190457A (en) * 1986-05-17 1987-11-18 Stc Plc Hydraulic cable installation system
GB2212940A (en) * 1987-11-25 1989-08-02 Bicc Plc Method and apparatus for blowing an optical fibre member
EP1916088A2 (en) * 2006-10-26 2008-04-30 Delphi Technologies, Inc. Automatic ramping method and system for extrusion coating wire
US8192663B2 (en) 2002-02-05 2012-06-05 Pirelli Pneumaticai S.P.A. Method for manufacturing a tyre and extruder for producing a semi-finished elastomeric product

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049156A3 (en) * 1980-10-01 1982-06-09 Bicc Public Limited Company Improvements in or relating to optical cable elements
US4554116A (en) * 1980-10-01 1985-11-19 Bicc Public Limited Company Optical cable element manufacture
EP0049156A2 (en) * 1980-10-01 1982-04-07 BICC Public Limited Company Method of and arrangement for manufacturing an optical cable element
FR2497142A1 (en) * 1980-12-29 1982-07-02 Cany Leon MACHINE FOR THE CONTINUOUS PRODUCTION OF A RING TUBE CONTAINING AN INTERIOR THREAD
EP0055494A1 (en) * 1980-12-29 1982-07-07 Léon CANY Apparatus for the continuous manufacture of a corrugated tube containing an internal wire
US4474638A (en) * 1982-02-26 1984-10-02 Siemens Aktiengesellschaft Device for manufacturing electrical and optical cables
GB2123978A (en) * 1982-07-12 1984-02-08 Telephone Cables Ltd Optical fibre cable
EP0119490A1 (en) * 1983-02-22 1984-09-26 Siemens Aktiengesellschaft Device for manufacturing a light guide element
EP0171127A1 (en) * 1984-03-15 1986-02-12 Celanese Corporation Extrusion coating apparatus
EP0274018A2 (en) * 1984-03-20 1988-07-13 Kabelwerk Eupen AG Cablerie d'Eupen SA Kabelfabriek Eupen NV Method and apparatus for the production of a flexible protection tube into which is drawn a wire
EP0160632A1 (en) * 1984-03-20 1985-11-06 Kabelwerk Eupen AG Cablerie d'Eupen SA Kabelfabriek Eupen NV Method and apparatus for the production of a flexible protection tube into which is drawn a wire
EP0274018A3 (en) * 1984-03-20 1988-08-31 Kabelwerk Eupen Ag Cablerie D'eupen Sa Kabelfabriek Eupen Nv Method and apparatus for the production of a flexible protection tube into which is drawn a wire
GB2169722A (en) * 1985-01-11 1986-07-16 Telephone Cables Ltd Manufacture of optical fibre cables using gas feed
EP0211976A1 (en) * 1985-08-13 1987-03-04 Sumitomo Electric Industries Limited Method for producing an optical sensor
GB2190457A (en) * 1986-05-17 1987-11-18 Stc Plc Hydraulic cable installation system
GB2190457B (en) * 1986-05-17 1990-12-19 Stc Plc Hydraulic cable installation system
GB2212940A (en) * 1987-11-25 1989-08-02 Bicc Plc Method and apparatus for blowing an optical fibre member
US5065928A (en) * 1987-11-25 1991-11-19 Bicc Plc. Method and apparatus for blowing an optical fibre member
GB2212940B (en) * 1987-11-25 1992-01-29 Bicc Plc Method and apparatus for blowing an optical fibre member
US8192663B2 (en) 2002-02-05 2012-06-05 Pirelli Pneumaticai S.P.A. Method for manufacturing a tyre and extruder for producing a semi-finished elastomeric product
EP1916088A2 (en) * 2006-10-26 2008-04-30 Delphi Technologies, Inc. Automatic ramping method and system for extrusion coating wire
EP1916088A3 (en) * 2006-10-26 2009-02-18 Delphi Technologies, Inc. Automatic ramping method and system for extrusion coating wire

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee