AT31464B - Circuit for automatic telephone exchanges. - Google Patents
Circuit for automatic telephone exchanges.Info
- Publication number
- AT31464B AT31464B AT31464DA AT31464B AT 31464 B AT31464 B AT 31464B AT 31464D A AT31464D A AT 31464DA AT 31464 B AT31464 B AT 31464B
- Authority
- AT
- Austria
- Prior art keywords
- circuit
- automatic telephone
- relay
- telephone exchanges
- lever
- Prior art date
Links
- 210000002105 tongue Anatomy 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
Landscapes
- Interface Circuits In Exchanges (AREA)
- Telephonic Communication Services (AREA)
Description
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beim Stromloswerden des Anrufrelais abfällt. Diese Sperrung und Freigabe des Hebels kann auf irgend eine bekannte Weise erfolgen und soll, da sie hier belanglos ist, nicht weiter beschrieben worden.
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relais R@ abgeschaltet, so dass dieses nicht eher wieder erregt werden kann, als bis der Hebel h1 in seine Ruhelage zurückgekehrt ist. Schliesslich wird durch Unterbrechen der Kontakte 1 und 2 am Hebel h. das Anrufrelais Ra von der Teilnehmerleitung abgeschaltet und gleichzeitig durch Schliessen der Kontakte 1 und 12 mit der Leitung m verbunden, die unmittelbar darauf am ersten Wähler tf, über die Kontakte 13 und 14 an Erde gelegt wird.
Das Anrufrelais R. bleibt erregt, bis nach Beendigung des Gesprächs der Wähler in seine Ruhelage zurückkehrt und den lokalen Relaisstromkreis an den Kontakten 13 und 14 unterbricht.
Ist der Wähler W1 besetzt, so wiederholen sich die beschriebenen Vorgänge bei dem Wähler Wound dem zu diesem gehörigen Hebel h2 der Zunge z2 usw.
Da die Zungen des Schwingungsrelais auf bestimmte Frequenzen ansprechen, ist es zweckmässig, für jeden Hebel zwei oder mehrere Zungen vorzusehen, um von etwaigen Schwankungen der Perioden zahl der betreffenden Wechselstromquelle unabhängig zu sein.
Die Einstellung der Wälder und die Verbindung mit den Teilnehmern können in einer beliebigen bekannten Weise vorgenommen werden und sind, da sie für das Wesen der vorliegenden
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drops when the call relay is de-energized. This blocking and releasing of the lever can take place in any known manner and, since it is irrelevant here, it will not be described further.
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relay R @ switched off, so that it cannot be re-energized until the lever h1 has returned to its rest position. Finally, by breaking contacts 1 and 2 on lever h. the call relay Ra disconnected from the subscriber line and at the same time connected by closing the contacts 1 and 12 with the line m, which is immediately placed on the first selector tf, via the contacts 13 and 14 to earth.
The call relay R. remains energized until after the end of the conversation the voter returns to its idle position and the local relay circuit at contacts 13 and 14 is interrupted.
If the selector W1 is occupied, the processes described are repeated for the selector Wound, the lever h2 of the tongue z2, etc.
Since the tongues of the vibration relay respond to certain frequencies, it is advisable to provide two or more tongues for each lever in order to be independent of any fluctuations in the number of periods of the AC source concerned.
The setting of the woods and the connection with the participants can be made in any known manner and are as they are for the essence of the present
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Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT31464T | 1906-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT31464B true AT31464B (en) | 1908-01-25 |
Family
ID=3546027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT31464D AT31464B (en) | 1906-12-13 | 1906-12-13 | Circuit for automatic telephone exchanges. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT31464B (en) |
-
1906
- 1906-12-13 AT AT31464D patent/AT31464B/en active
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