DE268551C - - Google Patents

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Publication number
DE268551C
DE268551C DENDAT268551D DE268551DA DE268551C DE 268551 C DE268551 C DE 268551C DE NDAT268551 D DENDAT268551 D DE NDAT268551D DE 268551D A DE268551D A DE 268551DA DE 268551 C DE268551 C DE 268551C
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DE
Germany
Prior art keywords
coils
cores
circuit
double
transformers
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.)
Active
Application number
DENDAT268551D
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German (de)
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.)
Publication of DE268551C publication Critical patent/DE268551C/de
Active legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/08Arrangements for interconnection between switching centres for phantom working

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Insulated Conductors (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Es ist bereits bekannt, zum Zwecke des Doppel- und Mehrfachfernsprechens zwei und mehr Doppelleitungen über Doppelsprechspulen oder Übertrager, die zu Doppelsprechspulen ausgebaut sind, zu einem dritten Sprechstromkreise usw. zu verbinden. Auch hat man schon drei Drähte zu zwei Sprechstromkreisen verbunden. Dies ist jedoch bisher nur bei Freileitungen geschehen. Eine AnwendungIt is already known for the purpose of dual and multiple telephony two and more double lines via double intercom coils or transformers leading to double intercom coils are expanded to connect to a third voice circuit, etc. You also have three wires to two speech circuits tied together. So far, however, this has only happened with overhead lines. An application

ίο des Dreileitersystems auf Fernsprechkabel hat bisher nicht stattgefunden.ίο the three-wire system on telephone cables has not yet taken place.

Die Grundlage der Erfindung bildet nun die durch Berechnungen und vielfache Versuche erwiesene Tatsache, daß das Dreileitersystem sich auf Fernsprechkabel dann allgemein anwenden läßt, wenn die Adern zu dreien sorgfältig verseilt, wenn also durch Verseilung aus den Adern Drillingsgruppen gebildet werden, wie in Fig. 2 angedeutet ist. Solche Kabel sind frei von Induktionsstörungen.The basis of the invention is now based on calculations and multiple experiments proven fact that the three-wire system will then generally apply to telephone cables leaves out if the cores are carefully stranded in threes, i.e. if by stranding triplet groups are formed on the veins, as indicated in FIG. 2. Such cables are free from induction disorders.

Die drei Adern jeder Gruppe werden in an sich bekannter Weise über Doppelsprechspulen zu zwei Sprechstromkreisen verbunden (Fig. 1 und 2). Zu der Schaltung können auch Übertrager verwandt werden, die zu Doppelsprechspulen ausgebaut sind (Fig. 3).The three cores of each group are in a known manner via double voice coils connected to two speech circuits (Fig. 1 and 2). Transformers can also be added to the circuit are used, which are expanded to double voice coils (Fig. 3).

In den Figuren bedeuten 1 und 2 die Sprechapparate des Stromkreises a, b, 3 und 4 diejenigen des Stromkreises c, a, b. I und II sind Doppelsprechspulen.In the figures, 1 and 2 denote the speech sets of the circuit a, b, 3 and 4 those of the circuit c, a, b. I and II are dual coils.

Neu ist demnach die Anwendung des Dreileitersystems auf Fernsprechkabel und . der Nachweis, daß in Drillingskabeln sowohl die Stromkreise der einzelnen Gruppen unter sich als auch gegenüber denjenigen der anderen Gruppen ohne Induktionsstörungen sind.The application of the three-wire system to telephone cables and. the Proof that in triplet cables both the circuits of the individual groups are among themselves as well as those of the other groups without induction disorders.

Dieser Zustand wird nicht beeinträchtigt, wenn den c-Leitern ein anderer Querschnitt als den a- undx6-Leitern gegeben wird. Ist es also wegen Raum- oder Materialersparnis erwünscht, so steht nichts im Wege, den c-Leitern einen geringeren Querschnitt zu geben. This condition is not affected if the c-conductors are given a different cross-section than the a- and x- 6-conductors. If it is desired to save space or material, nothing stands in the way of giving the c-conductors a smaller cross-section.

Claims (1)

Patent-Anspruch :Patent claim: Fernsprechanlage für Doppelsprechen auf drei Drähten unter Benutzung von Doppelsprechspulen oder zu solchen ausgebauten Übertragern, dadurch gekennzeichnet, 5« daß zwei Fernleitungen von je drei Adern eines Kabels gebildet werden,, die zur Vermeidung gegenseitiger Induktionsstörungen miteinander verseilt sind.Telephone system for two-way communication on three wires using two-way coils or to such dismantled transformers, marked, 5 « that two long-distance lines of three cores of a cable each are formed, to avoid mutual induction disturbances are stranded together. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT268551D 1913-09-15 Active DE268551C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191320822T 1913-09-15

Publications (1)

Publication Number Publication Date
DE268551C true DE268551C (en)

Family

ID=32372429

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT268551D Active DE268551C (en) 1913-09-15

Country Status (2)

Country Link
DE (1) DE268551C (en)
GB (1) GB191320822A (en)

Also Published As

Publication number Publication date
GB191320822A (en) 1913-11-20

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