GB369304A - Improvements relating to electrical circuits - Google Patents

Improvements relating to electrical circuits

Info

Publication number
GB369304A
GB369304A GB29031A GB29031A GB369304A GB 369304 A GB369304 A GB 369304A GB 29031 A GB29031 A GB 29031A GB 29031 A GB29031 A GB 29031A GB 369304 A GB369304 A GB 369304A
Authority
GB
United Kingdom
Prior art keywords
circuits
turn
signal
control circuits
kolster
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
GB29031A
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.)
KOLSTER RADIO CORP
Original Assignee
KOLSTER RADIO 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 KOLSTER RADIO CORP filed Critical KOLSTER RADIO CORP
Priority to GB29031A priority Critical patent/GB369304A/en
Publication of GB369304A publication Critical patent/GB369304A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/04—Distributors combined with modulators or demodulators
    • H04J3/042—Distributors with electron or gas discharge tubes

Abstract

369,304. Multiplex telegraphy and telephony ; thermionic distributors. KOLSTER-BRANDES, Ltd., Cray Works, Sidcup, Kent.-(Kolster Radio Corporation; 200, Mt. Pleasant Avenue, Newark, New Jersey, U.S.A.) Jan. 3, 1931, No. 290. [Classes 40 (iii) and 40 (v).] A plurality of signal or control circuits 16 .. 19 are activated in turn from a single A.C. source 11 by coupling to the source at 12 a pair of circuits in one of which the current is given a leading phase by means of the condenser C, and in the other a lagging phase bymeans of the inductance L. The two circuits each include a pair of transformer primary coils, and the secondary coils are star connected at 9 and are each connected to the grid of a valve 1 .. 4. The valves are thus activated in turn and energize the signal or control circuits 16 .. 19 which are coupled to their plate circuits. In a modification, Fig. 4 (not shown), the starconnected secondaries are connected to electromagnetic relays which close their contacts in turn in the signal or control circuits. Multiplex telephony or telegraphy may be effected by inserting signalling instruments in each controlled circuit, the several circuits being joined together to form a single transmission line.
GB29031A 1931-01-03 1931-01-03 Improvements relating to electrical circuits Expired GB369304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB29031A GB369304A (en) 1931-01-03 1931-01-03 Improvements relating to electrical circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29031A GB369304A (en) 1931-01-03 1931-01-03 Improvements relating to electrical circuits

Publications (1)

Publication Number Publication Date
GB369304A true GB369304A (en) 1932-03-24

Family

ID=9701749

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29031A Expired GB369304A (en) 1931-01-03 1931-01-03 Improvements relating to electrical circuits

Country Status (1)

Country Link
GB (1) GB369304A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420374A (en) * 1944-07-01 1947-05-13 Rca Corp Pulse multiplex transmission system
US2429613A (en) * 1943-10-19 1947-10-28 Standard Telephones Cables Ltd Pulse multiplex communication system
US2471253A (en) * 1937-06-15 1949-05-24 Toulon Pierre Marie Gabriel Signal distributing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471253A (en) * 1937-06-15 1949-05-24 Toulon Pierre Marie Gabriel Signal distributing system
US2429613A (en) * 1943-10-19 1947-10-28 Standard Telephones Cables Ltd Pulse multiplex communication system
US2420374A (en) * 1944-07-01 1947-05-13 Rca Corp Pulse multiplex transmission system

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