GB424920A - Improvements relating to trunk communication cables, in particular for the transmission of high frequency currents - Google Patents
Improvements relating to trunk communication cables, in particular for the transmission of high frequency currentsInfo
- Publication number
- GB424920A GB424920A GB5880/34A GB588034A GB424920A GB 424920 A GB424920 A GB 424920A GB 5880/34 A GB5880/34 A GB 5880/34A GB 588034 A GB588034 A GB 588034A GB 424920 A GB424920 A GB 424920A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductors
- sheath
- double
- magnetic
- feb
- 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
Links
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
Landscapes
- Coils Or Transformers For Communication (AREA)
- Communication Cables (AREA)
Abstract
424,920. Electric cables. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Feb. 22, 1934, No. 5880. Convention date, Feb. 22, 1933. [Class 36] In order to prevent mutual interference between different " double conductors " i.e. conductors comprising out and return elements, the two elements are so arranged that their " electric axes ", i.e. the loci of the centroids of their cross-sections, are coincident and the pair are enclosed in a sheath of magnetic material. Fig. 1 shows an arrangement of four such double conductors, each consisting of two concentric conductors 31 .. 34, separated by an air space and a spiral cord 35 and enclosed in insulation 36 and a magnetic sheath 37. The sheaths 37 are in electric contact with each other and an enclosing sheath 38, but may be insulated. The air space and cord 35 may also be replaced by solid insulation. Fig. 3 shows an arrangement where each element of each double conductor consists of two conductors in parallel, the conductors 53, 54 of one element being situated at opposite angles of a square and the conductors 55, 56 of the other element at the other two angles. The magnetic sheath should be of material of high resistance and high permeability, it may be divided transversely, or may be made of powdered material applied to a strip of paper &c. wound helically about the conductor.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE424920X | 1933-02-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB424920A true GB424920A (en) | 1935-03-04 |
Family
ID=6476975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5880/34A Expired GB424920A (en) | 1933-02-22 | 1934-02-22 | Improvements relating to trunk communication cables, in particular for the transmission of high frequency currents |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR768955A (en) |
GB (1) | GB424920A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3082387A (en) * | 1959-07-23 | 1963-03-19 | Pirelli | Multi-conductor telecommunication cables for audio and carrier frequencies |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE757665C (en) * | 1935-04-13 | 1953-01-26 | Helge Rost | Electric telecommunication cable with one or more concentric airspace-insulated high-frequency lines |
-
1934
- 1934-02-22 GB GB5880/34A patent/GB424920A/en not_active Expired
- 1934-02-22 FR FR768955D patent/FR768955A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3082387A (en) * | 1959-07-23 | 1963-03-19 | Pirelli | Multi-conductor telecommunication cables for audio and carrier frequencies |
Also Published As
Publication number | Publication date |
---|---|
FR768955A (en) | 1934-08-17 |
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