GB1139577A - Method and apparatus for feeding homogenised thermoplastic material with a uniform flow front - Google Patents

Method and apparatus for feeding homogenised thermoplastic material with a uniform flow front

Info

Publication number
GB1139577A
GB1139577A GB1625266A GB1625266A GB1139577A GB 1139577 A GB1139577 A GB 1139577A GB 1625266 A GB1625266 A GB 1625266A GB 1625266 A GB1625266 A GB 1625266A GB 1139577 A GB1139577 A GB 1139577A
Authority
GB
United Kingdom
Prior art keywords
glass
forehearth
pump
path
confined
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
GB1625266A
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.)
Corning Glass Works
Original Assignee
Corning Glass Works
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 Corning Glass Works filed Critical Corning Glass Works
Publication of GB1139577A publication Critical patent/GB1139577A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • 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
    • C03B5/173—Apparatus for changing the composition of the molten glass in glass furnaces, e.g. for colouring the molten glass
    • 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
    • C03B5/18—Stirring devices; Homogenisation
    • C03B5/187—Stirring devices; Homogenisation with moving elements

Abstract

1,139,577. Glass manufacture. CORNING GLASS WORKS. 13 April, 1966 [19 April, 1965], No. 16252/66. Heading C1M. [Also in Division F4] Molten glass is homogenized whilst being flowed along a horizontal forehearth by being subjected to the action of a pump 16 which forces the glass downwards through a cylindrical path 18 into a confined horizontal passage 20 below the forehearth and a pump 26 which forces the glass upwards in a confined oval path 22 from the confined passage 20 to the horizontal path of the forehearth, the glass then having a uniform flow front. The pump 16 is centrally situated in the cylindrical well 18 communicating with the passage 20. The pump 26 comprises two counter-rotating stirrers having their axes along the major axis of the oval well 22. The counter-rotating stirrers send the glass through two helical paths such that high spots form along the forehearth sidewalls and such that the two paths merge to give a uniform parabolic flow path. The method is particularly useful where coloured or other additions are to be added to the glass within the forehearth.
GB1625266A 1965-04-19 1966-04-13 Method and apparatus for feeding homogenised thermoplastic material with a uniform flow front Expired GB1139577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44905165A 1965-04-19 1965-04-19

Publications (1)

Publication Number Publication Date
GB1139577A true GB1139577A (en) 1969-01-08

Family

ID=23782677

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1625266A Expired GB1139577A (en) 1965-04-19 1966-04-13 Method and apparatus for feeding homogenised thermoplastic material with a uniform flow front

Country Status (4)

Country Link
JP (1) JPS5120202B1 (en)
DE (1) DE1596362B2 (en)
GB (1) GB1139577A (en)
NL (2) NL6604926A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230815A (en) * 1974-11-25 1977-03-08 Owens Corning Fiberglass Corp Method of manufacturing glass
EP0108566A1 (en) * 1982-11-01 1984-05-16 Corning Glass Works Apparatus for mixing viscous material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102173560A (en) * 2006-01-05 2011-09-07 日本电气硝子株式会社 Molten glass supply apparatus and process for producing glass formed article
JP4811791B2 (en) * 2006-01-05 2011-11-09 日本電気硝子株式会社 Molten glass supply apparatus and method for producing glass molded product

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707621A (en) * 1952-12-11 1955-05-03 Emhart Mfg Co Front blender

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230815A (en) * 1974-11-25 1977-03-08 Owens Corning Fiberglass Corp Method of manufacturing glass
EP0108566A1 (en) * 1982-11-01 1984-05-16 Corning Glass Works Apparatus for mixing viscous material

Also Published As

Publication number Publication date
NL6604926A (en) 1966-10-20
NL132721C (en)
DE1596362A1 (en) 1970-04-02
DE1596362B2 (en) 1971-06-09
JPS5120202B1 (en) 1976-06-23

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