GB750040A - Improvements in or relating to apparatus for transmitting and receiving telephonic and high frequency currents through concentric cables - Google Patents

Improvements in or relating to apparatus for transmitting and receiving telephonic and high frequency currents through concentric cables

Info

Publication number
GB750040A
GB750040A GB521054A GB521054A GB750040A GB 750040 A GB750040 A GB 750040A GB 521054 A GB521054 A GB 521054A GB 521054 A GB521054 A GB 521054A GB 750040 A GB750040 A GB 750040A
Authority
GB
United Kingdom
Prior art keywords
transmitting
relating
high frequency
frequency currents
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
GB521054A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB521054A priority Critical patent/GB750040A/en
Publication of GB750040A publication Critical patent/GB750040A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current

Abstract

750,040. Telephone transmission systems. ESTAUGH, W. Jan. 20, 1955 [Feb. 23, 1954], No. 5210/54. Class 40 (4). The system for transmission over a concentric cable comprising a central signalling conductor a, an outer conductor e and an intermediate shielding conductor b described in Specification 479,911, which employs a charging battery f at the receiving end and a signalling battery i of lower voltage at the transmitting end connected as shown, is modified by the earthing of the outer conductor e at both ends. The resistances k, I at the transmitting end are adjusted independently to reduce the potentials at O, P to approximately one half the values at the receiving end of the cable, thus giving a similar fall of potential along conductors a, b.
GB521054A 1954-02-23 1954-02-23 Improvements in or relating to apparatus for transmitting and receiving telephonic and high frequency currents through concentric cables Expired GB750040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB521054A GB750040A (en) 1954-02-23 1954-02-23 Improvements in or relating to apparatus for transmitting and receiving telephonic and high frequency currents through concentric cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB521054A GB750040A (en) 1954-02-23 1954-02-23 Improvements in or relating to apparatus for transmitting and receiving telephonic and high frequency currents through concentric cables

Publications (1)

Publication Number Publication Date
GB750040A true GB750040A (en) 1956-06-06

Family

ID=9791774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB521054A Expired GB750040A (en) 1954-02-23 1954-02-23 Improvements in or relating to apparatus for transmitting and receiving telephonic and high frequency currents through concentric cables

Country Status (1)

Country Link
GB (1) GB750040A (en)

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