US2054010A - Communication cable - Google Patents

Communication cable Download PDF

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Publication number
US2054010A
US2054010A US620088A US62008832A US2054010A US 2054010 A US2054010 A US 2054010A US 620088 A US620088 A US 620088A US 62008832 A US62008832 A US 62008832A US 2054010 A US2054010 A US 2054010A
Authority
US
United States
Prior art keywords
conductor
conductors
paper
insulating
envelope
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
US620088A
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English (en)
Inventor
Fischer Ernst
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 and Halske AG
Siemens Corp
Original Assignee
Siemens 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 Siemens Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of US2054010A publication Critical patent/US2054010A/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
    • H01B11/1834—Construction of the insulation between the conductors
    • 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

Definitions

  • the conductors of cables for communication purposes as paper-insulated air-space conductors.
  • the construction of such conductors has been carried out in most cases by spirally winding around each metallic conductor a single or multiple cord made of fibrous material and placing over this cord an envelope consisting of the same material, especially of paper.
  • the cables made up of such paper-insulated air-space conductors must as is well known be subjected, owing to the water contained in the fibrous materials, to a thorough and careful drying at high temperatures (above 100 C.) so as to attain favorable electrical values.
  • Such materials are, for instance, cellulose ester, cellulose ether, tjipetir and rubbers having small dielectric losses, particularly rubber treated with suitable swelling media.
  • the outer en velope may consist of one or more layers of ribbon, wrapped spirally upon each conductor. It may, however, also be applied in such a manner that one or more ribbons consisting of the above said practically non-hygroscopic materials are plaited around the entire length of the conductor and held together by binders. The overlapping joints of the ribbons, if desired, may be glued together so as to result in a closed tube as outer envelope.
  • Fig. 1 represents an individual cable conductor constructed according to the invention
  • Fig. 2 represents a portion of a cable containing a number of such conductors.
  • I denotes the cable containing a plurality of conductors
  • 2 denotes an individual copper conductor
  • 3 the spacer which in this case consists of a rubber mixture having small dielectric losses
  • 3a a thread material of greater tensile strength than the spacer, for instance rayon
  • 4 the outer envelope of ribbons wrapped spirally upon the conductor 2 and consisting of the same rubber mixture.
  • a communication cable composed of a plurality of individually air spaced conductors, each conductor having an individual insulating envelope wound about said conductor and an insulating spacer wound directly onto said conductor for supporting said envelope throughout on said conductor in spaced relation thereto, at least one of said insulating elements consisting at least partly of substantially nn-hygroscopic materials selected from the group consisting of cellulose derivatives and rubbery substances, having smaller dielectric losses than paper at high frequencies.
  • a communication cable composed of a plurality of individually air spaced conductors, each conductor, having an individual insulating envelope wound about said conductor and an insulating spacer wound directly onto said conductor for supporting said envelope throughout on said conductor in spaced relation thereto, at least one of said insulating elements consisting of substantially non-hygroscopic materials selected from the group consisting of cellulose derivatives and rubbery substances, having smaller dielectric losses than paper at high frequencies.
  • a communication cable composed of a plurality of individually air spaced conductors, each conductor having an individual insulating envelope wound about said conductor and an insulating spacer would directly onto said conductor for supporting said envelope throughout on said conductor in spaced relation thereto, at least one of said insulating elements consisting of substantially non-hygroscopic cellulose derivatives having smaller dielectric losses than paper at high frequencies.
  • a communication cable composed of a plurality of individually air spaced conductors, each conductor having an individual insulating envelope and insulating spacers for supporting said envelope in spaced relation on said conductor, at least one of said insulating elements consisting at least partly of a practically non-hygroscopic rubbery substance, having smaller dielectric losses than paper at high frequencies.
  • a communication cable composed of a plurality of individually air spaced conductors, each conductor having an individual insulating envelope and insulating spacers for supporting said envelope in spaced relation on said conductor, at least one of said insulating elements consisting of a practically non-hygroscopic rubbery substance, having smaller dielectric losses than paper at high frequencies.
  • a communication cable composed of a plurality of individually air spaced conductors, each conductor having an individual insulating envelope and insulating spacers for supporting said envelope in spaced relation on said conductor, at least one of said insulating elements consisting of practically non-hygroscopic rubber having smaller dielectric losses than paper at high frequencies.
  • a communication cable composed of a plurality of individual air spaced conductors, each conductor having an individual insulating en velope and insulating spacers for supporting said envelope in spaced relation upon said conductor, at least one of said insulating elements consisting at least partly of practically non-hygroscopic rubber swelled with suitable swelling means, said rubber having smaller dielectric losses than paper at high frequencies.
  • a communication cable composed of a plurality of individual air spaced conductors, each conductor having an individual insulating envelope and insulating spacers for supporting said envelope in spaced relation upon said conductor, at least one of said insulating elements consisting of a practically non-hygroscopic insulating ma terial having smaller dielectric losses than paper at high frequencies and containing inserts made of a material of greater tensile strength than the insulating material itself.
  • a communicationcable composed of a plurality of individual air spaced conductors, each conductor having an individual insulating envelope and insulating spacers for supporting said envelope in spaced relation upon said conductor, at least one of said insulating elements consisting of a practically non-hygroscopic insulating material having smaller dielectric losses than paper at high frequencies and containing inserts made of rayon.
  • a communication cable with air-space conductors consisting of practically non-hygroscopic tjipetir,- said tjipetlr having smaller dielectric losses than paper at high frequencies.
  • a communication cable with air-space conductors, the insulation of said air-space conductors and the spacers provided for the insulation consisting of practically non-hygroscopic tjipetir, said tjipetir having smaller dielectric losses than paper at high frequencies.
  • a communication cable with air-space conductors, the spacers provided for the insulation consisting of practically non-hygroscopic tjipetir, said tjipetir having smaller dielectric losses than paper at high frequencies.

Landscapes

  • Insulating Bodies (AREA)
  • Building Environments (AREA)
  • Organic Insulating Materials (AREA)
  • Insulated Conductors (AREA)
  • Communication Cables (AREA)
US620088A 1931-05-30 1932-06-30 Communication cable Expired - Lifetime US2054010A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE385523X 1931-05-30
DE1932S0106428 DE702254C (de) 1931-05-30 1932-09-28 Fuer die UEbertragung hoher Frequenzen geeignetes Fernmeldekabel mit Luftraumadern

Publications (1)

Publication Number Publication Date
US2054010A true US2054010A (en) 1936-09-08

Family

ID=33553299

Family Applications (1)

Application Number Title Priority Date Filing Date
US620088A Expired - Lifetime US2054010A (en) 1931-05-30 1932-06-30 Communication cable

Country Status (5)

Country Link
US (1) US2054010A (de)
AT (2) AT135946B (de)
DE (1) DE702254C (de)
FR (2) FR737815A (de)
GB (1) GB385523A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE745131C (de) * 1935-10-04 1944-02-26 Rheinische Draht Und Kabelwerk Fernmeldefeldkabel mit normaler Gesamtdicke der Leiterumhuellung
DE1056217B (de) * 1952-04-15 1959-04-30 Siemens Ag Wellenfuehrung zur leitungsgebundenen Fortfuehrung elektromagnetischer Wellen
DE1194021B (de) * 1962-02-20 1965-06-03 Geraetebau Wendelfoermiger Abstandhalter fuer elektrische Leitungen

Also Published As

Publication number Publication date
FR737815A (fr) 1932-12-16
AT138562B (de) 1934-08-25
AT135946B (de) 1933-12-27
DE702254C (de) 1941-02-13
GB385523A (en) 1932-12-29
FR43829E (fr) 1934-09-07

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