GB862006A - Improvements relating to insulated electric wire conductors - Google Patents

Improvements relating to insulated electric wire conductors

Info

Publication number
GB862006A
GB862006A GB6931/57A GB693157A GB862006A GB 862006 A GB862006 A GB 862006A GB 6931/57 A GB6931/57 A GB 6931/57A GB 693157 A GB693157 A GB 693157A GB 862006 A GB862006 A GB 862006A
Authority
GB
United Kingdom
Prior art keywords
wire
mandrel
diameter
tubing
insulated electric
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
GB6931/57A
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.)
UNIDARE Ltd
Original Assignee
UNIDARE 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 UNIDARE Ltd filed Critical UNIDARE Ltd
Publication of GB862006A publication Critical patent/GB862006A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

862,006. Moulding insulated electric conductors. GREEN, P. H., and UNIDARE Ltd March 1, 1957 [Dec. 8, 1956], No. 6931/57. Class 87(2). [Also in Group XI] An insulated wire conductor especially for heating up to 100‹C. consists of a resistance wire loosely enveloped in tubing of flexible insulating material e.g. a synthetic resin such as polyvinyl chloride, the interior diameter of the tubing being at least twice the diameter of the wire and the thickness of the tubing at least equalling the diameter of the wire, and is made by extruding the plastic through a hollow cylindrical mouthpiece 5<SP>1</SP> of a die 4 having a central mandrel 6 with a hollow cylindrical part 8 through which the wire is fed as the tube is formed. The die has a conical entrance part 5 and the mandrel has a conical part 7 with a central bore 10. An extension 10 on the part 8 of the mandrel prevents the wire from contacting the extruded tube until the latter has hardened, the length of the extension being 12 times its diameter, which is less than that of the part 8 of the mandrel forming the tube.
GB6931/57A 1956-12-08 1957-03-01 Improvements relating to insulated electric wire conductors Expired GB862006A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE862006X 1956-12-08

Publications (1)

Publication Number Publication Date
GB862006A true GB862006A (en) 1961-03-01

Family

ID=11042460

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6931/57A Expired GB862006A (en) 1956-12-08 1957-03-01 Improvements relating to insulated electric wire conductors

Country Status (1)

Country Link
GB (1) GB862006A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134842A (en) * 1982-12-22 1984-08-22 Telephone Cables Ltd Manufacturing optical cable with an optical fibre disposed loosely within a helical protective package
GB2184055B (en) * 1985-03-12 1989-08-02 Uponor Ab Method in manufacturing a heat insulated tube and a device in extruders for manufacturing the tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134842A (en) * 1982-12-22 1984-08-22 Telephone Cables Ltd Manufacturing optical cable with an optical fibre disposed loosely within a helical protective package
GB2184055B (en) * 1985-03-12 1989-08-02 Uponor Ab Method in manufacturing a heat insulated tube and a device in extruders for manufacturing the tube
US4929409A (en) * 1985-03-12 1990-05-29 Oy Uponor Ab Method in manufacturing a heat insulated tube and a device in extruders for manufacturing the tube

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