GB318647A - Improvements in impregnating paper for insulation of electric cables and apparatus therefor - Google Patents

Improvements in impregnating paper for insulation of electric cables and apparatus therefor

Info

Publication number
GB318647A
GB318647A GB7111/28A GB711128A GB318647A GB 318647 A GB318647 A GB 318647A GB 7111/28 A GB7111/28 A GB 7111/28A GB 711128 A GB711128 A GB 711128A GB 318647 A GB318647 A GB 318647A
Authority
GB
United Kingdom
Prior art keywords
chamber
liquid
web
impregnating
impregnation
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
GB7111/28A
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.)
WT Glover and Co Ltd
Original Assignee
WT Glover and Co 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 WT Glover and Co Ltd filed Critical WT Glover and Co Ltd
Priority to DE1929G0075772 priority Critical patent/DE534059C/en
Publication of GB318647A publication Critical patent/GB318647A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/0005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/30—Drying; Impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • H01B3/485—Other fibrous materials fabric

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coating Apparatus (AREA)
  • Reinforced Plastic Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

318,647. Beaver. C. J., and Glover & Co., Ltd.. W. T. March 7. 1928 Coating materials in long lengths.- In the impregnation of webs of paper or other fibrous material for use in the manufacture of electric cables, the chamber in which the impregnation is effected is evacuated together with a supplementary chamber containing the feed roll. Prior to impregnation, the web passes over steam heated rollers and afterwards passes out at a slit. between two pieces of rubber and through a supplementary tank containing impregnating liquid which seals the exit. A chamber a<1> containing the feed roll i is closed by an air-tight cover a<2> and the impregnating chamber a is provided with airtight doors a<6> and a cover a'. A partition a' divides the chamber a, the impregnating liquid being contained in the right hand portion and heated by steam pipes g. Prior to entering the liquid, the web passes over steam heated rollers a<8> and in the liquid over rollers a<5> carried by a removable frame a<4>. The orifice a<9>, Fig. 4, through which the web leaves the chamber a, is closed by rubber blocks b<1> mounted in adjustable blocks b<2>. To seal the aperture, a supplementary tank b is placed above it and is filled with impregnating liquid by a pump h, the liquid being kept at a constant, level therein by an overflow pipe h<4> controlled by an adjustable valve. Steam heated scrapers f are provided to remove excess liquid before the web passes over a roller c<2> revolving in a tank c whereby a non-adhesive coating is applied to one side of the web, which is then wound on a take-up roll d driven by friction gearing to allow slip. The winding appara.tus is enclosed in a casing l in an atmosphere and at a temperature which prevents absorption of moisture.
GB7111/28A 1928-03-07 1928-03-07 Improvements in impregnating paper for insulation of electric cables and apparatus therefor Expired GB318647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1929G0075772 DE534059C (en) 1928-03-07 1929-03-07 Device for drawing fibrous material, in particular paper webs, with insulating compound in a vacuum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8325/31A GB373697A (en) 1931-03-18 1931-03-18 Improvements in means for impregnating and coating sheet material

Publications (1)

Publication Number Publication Date
GB318647A true GB318647A (en) 1929-09-09

Family

ID=9850364

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7111/28A Expired GB318647A (en) 1928-03-07 1928-03-07 Improvements in impregnating paper for insulation of electric cables and apparatus therefor
GB8325/31A Expired GB373697A (en) 1928-03-07 1931-03-18 Improvements in means for impregnating and coating sheet material

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB8325/31A Expired GB373697A (en) 1928-03-07 1931-03-18 Improvements in means for impregnating and coating sheet material

Country Status (5)

Country Link
US (1) US1958984A (en)
BE (1) BE358734A (en)
DE (1) DE597290C (en)
FR (1) FR671001A (en)
GB (2) GB318647A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE554461A (en) * 1956-02-06
FR75710E (en) * 1958-10-22 1961-08-04 Improvement in high pressure heat treatments
DE1183775B (en) * 1960-09-21 1964-12-17 Zum Bruderhaus Ges Mit Beschra Method and system for treating paper webs or the like with liquid or steam
US3613634A (en) * 1969-10-30 1971-10-19 United Aircraft Corp Strand impregnation apparatus

Also Published As

Publication number Publication date
BE358734A (en)
US1958984A (en) 1934-05-15
DE597290C (en) 1934-05-19
FR671001A (en) 1929-12-07
GB373697A (en) 1932-06-02

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