GB629207A - Improvements in coaxial cable and method of making same - Google Patents

Improvements in coaxial cable and method of making same

Info

Publication number
GB629207A
GB629207A GB28954/47A GB2895447A GB629207A GB 629207 A GB629207 A GB 629207A GB 28954/47 A GB28954/47 A GB 28954/47A GB 2895447 A GB2895447 A GB 2895447A GB 629207 A GB629207 A GB 629207A
Authority
GB
United Kingdom
Prior art keywords
die
web
head
sleeve
conductor
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
GB28954/47A
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.)
Uniroyal Inc
Original Assignee
United States Rubber Co
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 United States Rubber Co filed Critical United States Rubber Co
Publication of GB629207A publication Critical patent/GB629207A/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
    • H01B13/18—Applying discontinuous insulation, e.g. discs, beads
    • H01B13/20—Applying discontinuous insulation, e.g. discs, beads for concentric or coaxial cables
    • H01B13/206—Applying discontinuous insulation, e.g. discs, beads for concentric or coaxial cables by forming a helical web
    • 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
    • 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
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/301—Extrusion nozzles or dies having reciprocating, oscillating or rotating parts
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1834—Construction of the insulation between the conductors
    • H01B11/1847—Construction of the insulation between the conductors of helical wrapped structure
    • 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
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb

Landscapes

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

Abstract

629,207. Coating wires by extrusion. UNITED STATES RUBBER CO. Oct. 30, 1947, No. 28954. Convention date, Jan. 2. [Class 87 (ii)] [Also in Group XXXVI] An electric cable core 6 is made by extruding an insulating sleeve 2 around and spaced from a conductor 1, and simultaneously extruding a helicoidal web 3 of insulating material integral with the leeve and extending between the sleeve and the conductor. The conductor 1 is drawn continuously through a rotating guide die 14 centred in the orifice 13 of an extrusion machine 7. The die 14 has an enlarged head 15, the walls of which co-operate with the nozzle 12 to form the annular orifice 13 through which the insulating sleeve 2 is extruded. The head 15 of the die is provided with an angularly disposed slot 16, Fig. 2, through which the web 3 is extruded. During the extrusion process the die 14 is rotated, causing the web 3 to be formed as a helicoid. To prevent distortion of the sleeve 2 air may be supplied to the interior of the cable core from a supply pipe 21. It passes through the hollow die 14 and through an opening 23 in the head thereof (Fig. 2). More than one helicoidal web may be formed by providing additional slots in the head 15 of the die 14. The insulating material used is preferably polyethylene or polystyrene.
GB28954/47A 1947-01-02 1947-10-30 Improvements in coaxial cable and method of making same Expired GB629207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US629207XA 1947-01-02 1947-01-02

Publications (1)

Publication Number Publication Date
GB629207A true GB629207A (en) 1949-09-14

Family

ID=22045718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28954/47A Expired GB629207A (en) 1947-01-02 1947-10-30 Improvements in coaxial cable and method of making same

Country Status (1)

Country Link
GB (1) GB629207A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019728B (en) * 1952-12-12 1957-11-21 Siemens Ag Coaxial cable with spiral tape insulation
DE2820987A1 (en) * 1977-05-17 1978-11-23 Sumitomo Electric Industries DEVICE FOR THE PRODUCTION OF A COILED RIB FROM INSULATING MATERIAL IN A COAXIAL CABLE
GB2160147A (en) * 1984-06-15 1985-12-18 Delta Enfield Ltd Manufacture of electric cables
GB2186836A (en) * 1986-02-06 1987-08-26 Cadbury Ltd Extruding an internally supported hollow article
GB2296367A (en) * 1994-12-22 1996-06-26 Baker Hughes Inc Fluid line with integral electrical conductor
US5920032A (en) * 1994-12-22 1999-07-06 Baker Hughes Incorporated Continuous power/signal conductor and cover for downhole use

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019728B (en) * 1952-12-12 1957-11-21 Siemens Ag Coaxial cable with spiral tape insulation
DE2820987A1 (en) * 1977-05-17 1978-11-23 Sumitomo Electric Industries DEVICE FOR THE PRODUCTION OF A COILED RIB FROM INSULATING MATERIAL IN A COAXIAL CABLE
GB2160147A (en) * 1984-06-15 1985-12-18 Delta Enfield Ltd Manufacture of electric cables
GB2186836A (en) * 1986-02-06 1987-08-26 Cadbury Ltd Extruding an internally supported hollow article
US4834635A (en) * 1986-02-06 1989-05-30 Cadbury Limited Extrusion die for extruded product
GB2186836B (en) * 1986-02-06 1989-11-01 Cadbury Ltd Extrusion die
GB2296367A (en) * 1994-12-22 1996-06-26 Baker Hughes Inc Fluid line with integral electrical conductor
US5920032A (en) * 1994-12-22 1999-07-06 Baker Hughes Incorporated Continuous power/signal conductor and cover for downhole use
US6103031A (en) * 1994-12-22 2000-08-15 Baker Hughes Incorporated Continous power/signal conductor and cover for downhole use

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