GB432110A - Improvements in or relating to methods of applying vulcanised insulation to cables - Google Patents

Improvements in or relating to methods of applying vulcanised insulation to cables

Info

Publication number
GB432110A
GB432110A GB2031/34A GB203134A GB432110A GB 432110 A GB432110 A GB 432110A GB 2031/34 A GB2031/34 A GB 2031/34A GB 203134 A GB203134 A GB 203134A GB 432110 A GB432110 A GB 432110A
Authority
GB
United Kingdom
Prior art keywords
rubber
extrusion
cable
parts
vulcanizing
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
GB2031/34A
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products 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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Publication of GB432110A publication Critical patent/GB432110A/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
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/06—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam for articles of indefinite length
    • B29C35/065—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam for articles of indefinite length in long tubular vessels
    • 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
    • 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
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

432,110. Extrusion - apparatus for moulding and vulcanizing coverings on cables. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Kemp, A. R.; 170, Lexington Avenue, Westwood, New Jersey, U.S.A.) Jan. 20, 1934, No. 2031. Convention date, Jan. 31, 1933. [Classes 70 and 87 (ii)] [See also Group XXXVI] Heavy cables are covered with thick layers of very soft rubber compound by extrusion, and the coating vulcanised while the cable is maintained in a vertical position to prevent decentralization. Fig. 1 shows the lay-out of the plant, the cable being drawn from a reel 2 by a winch C through a straightening-device 3, extrusion-apparatus 4, steam-vulcanizing- apparatus 6, sealing-means 7 and water-spray 26, thence passing to a similar apparatus for applying a second coating which may be arranged immediately above the first apparatus or to one side as in the illustrated form. On its way to the extrusion apparatus the cable is coated preliminarily with partly depolymerized heated rubber or the like by being drawn through a tube 16<a> charged with this material. Movement of the tube develops pressure in the material. The main coating is supplied to the die 10 from the hopper 17 by the rollers 18, 19. When applying two layers in succession, the first layer may be partly vulcanized, and the process completed during the vulcanization of the superposed layer. The sealing-means to prevent escape of steam from the vulcanizing- chamber comprises a series of washers 21 which just clear the coated cable and are spaced by rubber washers 20. A typical coating composition is stated to comprise 100 parts crÛpe rubber, 1 part sulphur, 1 part zinc oxide, ¢ part stearic acid, ¢ part diphenyl guanidine, 3 parts aldehyde amine condensation product, 2 parts petrolatum base wax of high melting point and 2 parts phenyl alpha naphthylamine. The process is stated to permit the use of compositions having a minimum amount of sulphur and a maximum of rubber.
GB2031/34A 1933-01-31 1934-01-20 Improvements in or relating to methods of applying vulcanised insulation to cables Expired GB432110A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US432110XA 1933-01-31 1933-01-31

Publications (1)

Publication Number Publication Date
GB432110A true GB432110A (en) 1935-07-22

Family

ID=21926058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2031/34A Expired GB432110A (en) 1933-01-31 1934-01-20 Improvements in or relating to methods of applying vulcanised insulation to cables

Country Status (1)

Country Link
GB (1) GB432110A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415683A (en) * 1939-08-31 1947-02-11 Folco Angelo Vincenzo Treatment of glass-covered electric conductros

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415683A (en) * 1939-08-31 1947-02-11 Folco Angelo Vincenzo Treatment of glass-covered electric conductros

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