GB1438742A - Apparatus for and method of producing optical fibres - Google Patents

Apparatus for and method of producing optical fibres

Info

Publication number
GB1438742A
GB1438742A GB4275674A GB4275674A GB1438742A GB 1438742 A GB1438742 A GB 1438742A GB 4275674 A GB4275674 A GB 4275674A GB 4275674 A GB4275674 A GB 4275674A GB 1438742 A GB1438742 A GB 1438742A
Authority
GB
United Kingdom
Prior art keywords
crucible
glass
optical fibres
molten glass
producing optical
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
GB4275674A
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of GB1438742A publication Critical patent/GB1438742A/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
    • C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
    • C03B37/023—Fibres composed of different sorts of glass, e.g. glass optical fibres, made by the double crucible technique
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/26—Outlets, e.g. drains, siphons; Overflows, e.g. for supplying the float tank, tweels

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

1438742 Producing optical fibres CANON KK 2 Oct 1974 [4 Oct 1973] 42756/74 Heading C1M In the drawing of an optical fibre from a number of separate sources of molten glass, a constant head of glass is maintained in each of the rested crucibles 1, 2, 3 containing molten glass by providing them with an overflow 7, 8, 9 and introducing molten glass into each crucible at a faster rate than the glass is abstracted from a spinneret 4, 5, 6 at the base of the crucible. As shown in Fig. 4 a crucible may be provided with a plurality of overflows 8<SP>1</SP>, 8<SP>2</SP>, 8<SP>3</SP>. This enables selection of the required head by blocking off all but one of the overflows with plugs 12. The crucibles are formed of platinum, aluminium, clay or quartz.
GB4275674A 1973-10-04 1974-10-02 Apparatus for and method of producing optical fibres Expired GB1438742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11101773A JPS5638536B2 (en) 1973-10-04 1973-10-04

Publications (1)

Publication Number Publication Date
GB1438742A true GB1438742A (en) 1976-06-09

Family

ID=14550274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4275674A Expired GB1438742A (en) 1973-10-04 1974-10-02 Apparatus for and method of producing optical fibres

Country Status (3)

Country Link
JP (1) JPS5638536B2 (en)
DE (1) DE2447534A1 (en)
GB (1) GB1438742A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1541442A (en) * 1975-06-26 1979-02-28 Standard Telephones Cables Ltd Glass optical fibre manufacture
JP5901808B2 (en) 2014-08-05 2016-04-13 古河電気工業株式会社 Curable hygroscopic resin composition for sealing electronic device, sealing resin and electronic device
KR101952056B1 (en) 2015-01-30 2019-02-25 후루카와 덴키 고교 가부시키가이샤 Electronic-device-sealing resin composition and electronic device
JP6770684B2 (en) * 2016-12-16 2020-10-21 日本電気硝子株式会社 Molding equipment for glass articles

Also Published As

Publication number Publication date
DE2447534A1 (en) 1975-04-17
JPS5638536B2 (en) 1981-09-07
JPS5062648A (en) 1975-05-28

Similar Documents

Publication Publication Date Title
AU515354B2 (en) Method of producing glass optical filaments
BE838389A (en) PROCESS FOR MELTING A VITRIFIABLE MIXTURE, AND GLASS OVEN ALLOWING THE IMPLEMENTATION OF THIS PROCESS
GB1474684A (en) Optical fibres
FR2445971B1 (en) METHOD AND DEVICE FOR MAKING A CABLE OF OPTICAL FIBERS RESISTANT TO HIGH TEMPERATURES AND PERFECTLY WATERPROOF, AND CABLE OBTAINED BY THE IMPLEMENTATION OF THIS PROCESS
JPS5356209A (en) Method of controlling temperature of glass in pretreatment furnace
GB1438742A (en) Apparatus for and method of producing optical fibres
JPS52152244A (en) Method of manufacturing optical fiber preform
NL7511500A (en) PROCESS FOR PREPARING GLASS AND PROCESS FOR MANUFACTURING REINFORCEMENT FIBERS FROM THIS.
FR2313327A1 (en) VERY HIGH PURITY GLASS PREPARATION PROCESS USED IN PARTICULAR FOR THE MANUFACTURE OF OPTICAL FIBERS
JPS54151631A (en) Double crucible and method for producing graded index optical fiber
GB1549493A (en) Method of detecting breakage of glass fibre filament
ES361651A1 (en) Method and apparatus for injecting a layer of a different glass into a stream of molten glass
JPS5314834A (en) Orifice plate in glass fiber spinning furnace
GB1541798A (en) Production of preforms for optical fibres
IT8048621A0 (en) SPINNING FROM THE MELT MASS IMPROVEMENT IN THE SPEECHES FOR THE PRODUCTION OF SYNTHETIC POLYMER FIBERS WITH THE PROCEDURE OF
ES440056A1 (en) Method for making oxide glasses
DK0758305T3 (en) Process for making double glass fibers
JPS52120841A (en) Optical fiber producing apparatus
JPS5369644A (en) Method of drawing optical fibre by way of crucible process
JPS5346742A (en) Production of optical fiber
JPS52120300A (en) Gap single crystal gap making apparatus
PT66770B (en) Bushing for apparatus for spinning glass fibers
GB940333A (en) Improved method of and apparatus for caramelising sugar
JPS52431A (en) Process for producing optical fiber
FR2375221A1 (en) METHOD FOR PREPARING A DIHYDROOXADIAZINONE

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19941001