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US2576163A - Concentric conductor electric cable with magnetic screen - Google Patents

Concentric conductor electric cable with magnetic screen Download PDF

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Publication number
US2576163A
US2576163A US25886A US2588648A US2576163A US 2576163 A US2576163 A US 2576163A US 25886 A US25886 A US 25886A US 2588648 A US2588648 A US 2588648A US 2576163 A US2576163 A US 2576163A
Authority
US
United States
Prior art keywords
conductor
tape
concentric
magnetic screen
cable
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 - Lifetime
Application number
US25886A
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English (en)
Inventor
Weston William Kirby
Baguley Eric
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of US2576163A publication Critical patent/US2576163A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01B11/20—Cables having a multiplicity of coaxial lines
    • 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

Definitions

  • This invention relates to concentric conductor cables of the kind in which there is a central conductor, an intermediate tubular conductor concentric with the central conductor and an outer tubular conductor concentric with the central and intermediate conductors.
  • a concentric conductor cable comprising a central conductor, an intermediate conductor and an outer conductor, all coaxial, in which the intermediate conductor is divided into inner and outer conductors separated by a thin magnetic screen, thus allording electromagnetic screening between the currents transmitted over the inner concentric conductor cable constituted by the central conductor and the inner portion of the intermediate conductor and those transmitted over the outer concentric conductor cable constituted by the outer portion of the intermediate conductor and the outer conductor.
  • This screen consists of an inner copper layer i, which may be formed of a multi-copper tape spiral having a long lay or of a tube formed of a single tape folded into a tube with the edges abutting and having projections thereon. In the present case the projections on the tape would be formed so as to overlie the edges. Outside this are two layers 2 and 3 of steel tape spirals laid with a short lay and having opposite directions of lay. Or there may be one layer only of such steel tape spiral.
  • the inner conductor 4 of the outer concentric conductor line formed in either of the ways above described for the layer i, except that if the conductor 4 is formed of the tape with projections along its edges, these projections are caused to underlie the opposite edge.
  • the construction above described forms an electromagnetic screen between the inner and outer concentric-conductor lines and prevents any mutual disturbances between the transmission currents along the respective lines.
  • the conductor thus described forms the intermediate conductor of a double concentric conductor cable for land use having mainly air spacing between the several conductors.
  • This intermediate conductor is held in spaced relation from the innermost conductor by means of spacing washers slotted for application to the innermost conductor by a sideways movement.
  • a thin covering I3 of insulating material for example, a solid polymer of ethylene which serves to hold the copper tapes in position.
  • insulating material for example, a solid polymer of ethylene which serves to hold the copper tapes in position.
  • Over this insulating covering are applied at intervals slotted washers of the same insulating material. These washers are enclosed within an extruded tube of insulating material Ih over which is formed the outer conductor which consists of copper tapes l2 laid up side by side with a long lay to form a tube.
  • a flexible triple coaxial conductor of the type including concentrically arranged inner, intermediate and outer conductors with the inner and intermediate conductors comprising a first transmission circuit and the intermediate and outer conductors comprising a second and independent transmission circuit, the said intermediate conductor being a composite stratified structure of which each of the outer layers is a longitudinally folded copper tape constituting one conductor each of each circuit, and at least one layer is of longitudinally folded steel tape between the outer layers of said stratified structure, whereby electromagnetic interference of one circuit with the other is minimized.
  • a exible triple coaxial conductor system of the type dened in claim 1 further characterized in that the intermediate conductor comprises overlaying layers of longitudinally folded steel tapes helically wound in long lay and laid in opposite directions, disposed between the outer layers of longitudinally folded copper tape.
  • a iiexible triple coaxial conductor cable of the type including concentrically arrangc'l inner, intermediate and outer conductors arranged so that the inner and intermediate conductors can comprise a first transmission circuit and the intermediate and outer conductors can comprise a second and intermediate transmission circuit, the said intermediate conductor being a composite stratified structure of which each of the outer layers is a longitudinally folded copper tape constituting one conductor each of each circuit, and atleast one layer is of longitudinally folded steel tape between the outer layers of said stratified structure. whereby electromagnetic interference of one circuit with the other is mini mized.

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  • Communication Cables (AREA)
US25886A 1945-05-10 1948-05-08 Concentric conductor electric cable with magnetic screen Expired - Lifetime US2576163A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11723/45A GB650425A (en) 1945-05-10 1945-05-10 Improvements in or relating to concentric conductor electric cables

Publications (1)

Publication Number Publication Date
US2576163A true US2576163A (en) 1951-11-27

Family

ID=9991491

Family Applications (1)

Application Number Title Priority Date Filing Date
US25886A Expired - Lifetime US2576163A (en) 1945-05-10 1948-05-08 Concentric conductor electric cable with magnetic screen

Country Status (5)

Country Link
US (1) US2576163A (it)
BE (1) BE472664A (it)
ES (1) ES175003A1 (it)
FR (1) FR1101252A (it)
GB (1) GB650425A (it)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769149A (en) * 1956-10-30 Spirally wound composite electrical conductor
US2825759A (en) * 1951-06-29 1958-03-04 Bell Telephone Labor Inc Magnetically loaded anisotropic transmitting medium
US2879318A (en) * 1953-07-09 1959-03-24 Bell Telephone Labor Inc Shield for electric current apparatus
US2890263A (en) * 1952-11-18 1959-06-09 Hackethal Draht & Kabelwerk Ag Coaxial cables
US3056710A (en) * 1958-12-12 1962-10-02 Bell Telephone Labor Inc Method for constructing a wave guide
US3405228A (en) * 1965-08-11 1968-10-08 Gen Cable Corp Folded, laminated electrical cable sheath having abutting edges of one lamination unwelded
US3895176A (en) * 1971-03-09 1975-07-15 Westinghouse Electric Corp Coaxial conductor with trap for removing particles from fluid insulation
US4376920A (en) * 1981-04-01 1983-03-15 Smith Kenneth L Shielded radio frequency transmission cable
US4641110A (en) * 1984-06-13 1987-02-03 Adams-Russell Company, Inc. Shielded radio frequency transmission cable having propagation constant enhancing means
US5349133A (en) * 1992-10-19 1994-09-20 Electronic Development, Inc. Magnetic and electric field shield
US5374778A (en) * 1992-11-02 1994-12-20 Sumitomo Wiring Systems, Ltd. Wire harness
US6417454B1 (en) 2000-06-21 2002-07-09 Commscope, Inc. Coaxial cable having bimetallic outer conductor
US20080189940A1 (en) * 2007-02-14 2008-08-14 Superior Essex Communications Lp Communication cable with an asymmetrically clad steel shield
US20100025071A1 (en) * 2006-12-15 2010-02-04 Abb Technology An electric power cable, an off-shore installation provided therewith, and use thereof
EP2333791A3 (en) * 2009-12-10 2013-01-23 Armour Home Electronics Limited Cable and apparatus connected thereto
US20150083459A1 (en) * 2012-08-10 2015-03-26 Yazaki Corporation Multi-layer coaxial cable
EP3217499A1 (de) 2016-03-09 2017-09-13 nkt cables GmbH & Co. KG Bereitstellung einer gleichstrom-kabelanlage mit metallischem rückleiter und entsprechende gleichstrom-kabelanlage
WO2019047929A1 (en) 2017-09-08 2019-03-14 Nokia Shanghai Bell Co., Ltd. FIRE RESISTANT RADIO FREQUENCY CABLE
US20200234844A1 (en) * 2019-01-17 2020-07-23 Yazaki Corporation Cable conductor
RU2815923C1 (ru) * 2023-04-25 2024-03-25 федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВО "НИУ "МЭИ") Высоковольтный трехфазный коаксиальный кабель

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1255999A (fr) * 1960-02-01 1961-03-17 Comp Generale Electricite Câble électrique à paires coaxiales pour installation de télécommunication
DE1640701B1 (de) * 1967-06-03 1971-03-11 Kabel Metallwerke Ghh Abstandshalter fuer koaxiale hochfrequenzkabel
US3671662A (en) * 1970-12-16 1972-06-20 Bell Telephone Labor Inc Coaxial cable with flat profile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1037522A (en) * 1909-01-27 1912-09-03 Victor Pindter Von Pindtershofen Electric cable.
US1854255A (en) * 1930-01-30 1932-04-19 American Telephone & Telegraph Triple concentric conductor system
US2092023A (en) * 1932-07-26 1937-09-07 Rost Helge Concentric conductor for communication systems
US2319744A (en) * 1941-10-30 1943-05-18 Bell Telephone Labor Inc Shielding for communication circuits

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1037522A (en) * 1909-01-27 1912-09-03 Victor Pindter Von Pindtershofen Electric cable.
US1854255A (en) * 1930-01-30 1932-04-19 American Telephone & Telegraph Triple concentric conductor system
US2092023A (en) * 1932-07-26 1937-09-07 Rost Helge Concentric conductor for communication systems
US2319744A (en) * 1941-10-30 1943-05-18 Bell Telephone Labor Inc Shielding for communication circuits

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769149A (en) * 1956-10-30 Spirally wound composite electrical conductor
US2825759A (en) * 1951-06-29 1958-03-04 Bell Telephone Labor Inc Magnetically loaded anisotropic transmitting medium
US2890263A (en) * 1952-11-18 1959-06-09 Hackethal Draht & Kabelwerk Ag Coaxial cables
US2879318A (en) * 1953-07-09 1959-03-24 Bell Telephone Labor Inc Shield for electric current apparatus
US3056710A (en) * 1958-12-12 1962-10-02 Bell Telephone Labor Inc Method for constructing a wave guide
US3405228A (en) * 1965-08-11 1968-10-08 Gen Cable Corp Folded, laminated electrical cable sheath having abutting edges of one lamination unwelded
US3895176A (en) * 1971-03-09 1975-07-15 Westinghouse Electric Corp Coaxial conductor with trap for removing particles from fluid insulation
US4376920A (en) * 1981-04-01 1983-03-15 Smith Kenneth L Shielded radio frequency transmission cable
US4641110A (en) * 1984-06-13 1987-02-03 Adams-Russell Company, Inc. Shielded radio frequency transmission cable having propagation constant enhancing means
US5349133A (en) * 1992-10-19 1994-09-20 Electronic Development, Inc. Magnetic and electric field shield
US5374778A (en) * 1992-11-02 1994-12-20 Sumitomo Wiring Systems, Ltd. Wire harness
US6417454B1 (en) 2000-06-21 2002-07-09 Commscope, Inc. Coaxial cable having bimetallic outer conductor
US8816206B2 (en) * 2006-12-15 2014-08-26 Abb Technology Ltd. Electric power cable, an off-shore installation provided therewith, and use thereof
US20100025071A1 (en) * 2006-12-15 2010-02-04 Abb Technology An electric power cable, an off-shore installation provided therewith, and use thereof
US20080189940A1 (en) * 2007-02-14 2008-08-14 Superior Essex Communications Lp Communication cable with an asymmetrically clad steel shield
EP2333791A3 (en) * 2009-12-10 2013-01-23 Armour Home Electronics Limited Cable and apparatus connected thereto
US20150083459A1 (en) * 2012-08-10 2015-03-26 Yazaki Corporation Multi-layer coaxial cable
US9870845B2 (en) * 2012-08-10 2018-01-16 Yazaki Corporation Multi-layer coaxial cable
EP3217499A1 (de) 2016-03-09 2017-09-13 nkt cables GmbH & Co. KG Bereitstellung einer gleichstrom-kabelanlage mit metallischem rückleiter und entsprechende gleichstrom-kabelanlage
DE102016002881A1 (de) * 2016-03-09 2017-09-14 nkt cables GmbH & Co.KG Gleichstrom-Kabelanlage mit metallischem Rückleiter
WO2019047929A1 (en) 2017-09-08 2019-03-14 Nokia Shanghai Bell Co., Ltd. FIRE RESISTANT RADIO FREQUENCY CABLE
EP3679590A4 (en) * 2017-09-08 2021-05-12 Nokia Shanghai Bell Co., Ltd. Fire rated radio frequency cable
US11152138B2 (en) 2017-09-08 2021-10-19 Nokia Shanghai Bell Co., Ltd. Fire rated radio frequency cable
US20200234844A1 (en) * 2019-01-17 2020-07-23 Yazaki Corporation Cable conductor
US11211182B2 (en) * 2019-01-17 2021-12-28 Yazaki Corporation Cable conductor
RU2815923C1 (ru) * 2023-04-25 2024-03-25 федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВО "НИУ "МЭИ") Высоковольтный трехфазный коаксиальный кабель

Also Published As

Publication number Publication date
GB650425A (en) 1951-02-21
BE472664A (it)
ES175003A1 (es) 1946-11-01
FR1101252A (fr) 1955-10-04

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