GB453481A - Improvements in and relating to water-tight jackets and sheaths of electric cables - Google Patents

Improvements in and relating to water-tight jackets and sheaths of electric cables

Info

Publication number
GB453481A
GB453481A GB4120/35A GB412035A GB453481A GB 453481 A GB453481 A GB 453481A GB 4120/35 A GB4120/35 A GB 4120/35A GB 412035 A GB412035 A GB 412035A GB 453481 A GB453481 A GB 453481A
Authority
GB
United Kingdom
Prior art keywords
tube
jacket
corrugated
screw
core
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
GB4120/35A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB453481A publication Critical patent/GB453481A/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
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/20—Metal tubes, e.g. lead sheaths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/189—Radial force absorbing layers providing a cushioning effect

Landscapes

  • Insulated Conductors (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

453,481. Cables. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Feb. 8, 1935, No. 4120. Convention date, Feb. 8, 1934. [Class 36] [See also Group V] A cable or conductor has a water-tight jacket or sheath consisting of a self-supporting seamless tube which is unreinforced by any metal wire inserts and is corrugated annularly or helically with corrugations of a pitch not greater than the smaller external diameter of the corrugations, the jacket or sheath being formed of polystyrol or of other solid organic synthetic substances of a like nature thereto from a mechanical and electrical point of view and which contain the vinyl group. The jacket or sheath, which is formed by a pressing or extruding operation, may be first produced as a smooth tube and then corrugated, whilst still in the thermoplastic condition, by rolls, wire helices or other pressure bodies which may be heated and which are applied against the tube and rotated about the axis thereof. To reduce brittleness, the tube may be stretched before or after corrugation. The Figure shows apparatus for applying a jacket to a cable core. The core 1, provided with a metal band wrapping 2, passes through a press 11 out of the extrusion nozzle 12 of which the cable jacket 3 is extruded on to a short tube 13 extending from the nozzle 12 and surrounding the core 1. The extruded jacket is corrugated whilst traversing the tube 13 by a helical wire press screw 14 which is rotated around the tube 13 by a motor 15 and which tapers in diameter with increasing distance from the nozzle 12. The screw 14 has a short portion which extends beyond the tube 13 so as to press the jacket firmly on the core. The jacketed cable is wound on a take-up drum 16 which is driven synchronously with the screw 14. The tube 13 may be corrugated and driven in synchronism with the screw 14. Specifications 356,706 and 430,581 are referred to.
GB4120/35A 1929-06-19 1935-02-08 Improvements in and relating to water-tight jackets and sheaths of electric cables Expired GB453481A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES92320D DE614315C (en) 1929-06-19 1929-06-19 Cable sheath made from a flexible, waterproof, seamless tube
DE146998X 1934-02-08

Publications (1)

Publication Number Publication Date
GB453481A true GB453481A (en) 1936-09-08

Family

ID=34105265

Family Applications (2)

Application Number Title Priority Date Filing Date
GB17034/30A Expired GB356706A (en) 1929-06-19 1930-06-02 Cable jacket consisting of a flexible, waterproof, seamless piping, in particular for long-distance sea cables and oil-filled high tension cables
GB4120/35A Expired GB453481A (en) 1929-06-19 1935-02-08 Improvements in and relating to water-tight jackets and sheaths of electric cables

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB17034/30A Expired GB356706A (en) 1929-06-19 1930-06-02 Cable jacket consisting of a flexible, waterproof, seamless piping, in particular for long-distance sea cables and oil-filled high tension cables

Country Status (4)

Country Link
AT (2) AT128714B (en)
DE (1) DE614315C (en)
FR (1) FR697140A (en)
GB (2) GB356706A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995616A (en) * 1961-08-08 Nicolas
DE973120C (en) * 1937-12-25 1959-12-03 Hackethal Draht Und Kabel Werk Process for the manufacture of cables with jackets made of metals of high strength
DE955331C (en) * 1938-03-29 1957-01-03 Siemens Ag Waterproof, tubular hollow body, especially a jacket for electrical cables
DE975705C (en) * 1943-11-19 1962-07-19 Hackethal Draht Und Kabel Werk Method of manufacturing a cable jacket from a metal of high strength
DE917723C (en) * 1948-12-01 1954-09-09 Anton Auer Method and device for the continuous production of endless, seamless, flexible tubes
DE931180C (en) * 1951-09-27 1955-08-01 Pirelli General Cable Works Electric cable filled with oil, gas or the like
US3173990A (en) * 1962-08-27 1965-03-16 Andrew Corp Foam-dielectric coaxial cable with temperature-independent relative conductor length

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
DE614315C (en) 1935-06-06
AT146998B (en) 1936-09-10
AT128714B (en) 1932-06-10
FR697140A (en) 1931-01-12
GB356706A (en) 1931-09-02

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