AT93370B - Device for the prevention of disturbances in telegraph lines with alternating current operation. - Google Patents
Device for the prevention of disturbances in telegraph lines with alternating current operation.Info
- Publication number
- AT93370B AT93370B AT93370DA AT93370B AT 93370 B AT93370 B AT 93370B AT 93370D A AT93370D A AT 93370DA AT 93370 B AT93370 B AT 93370B
- Authority
- AT
- Austria
- Prior art keywords
- disturbances
- prevention
- alternating current
- telegraph
- current operation
- Prior art date
Links
- 230000002265 prevention Effects 0.000 title description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 230000010355 oscillation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Landscapes
- Near-Field Transmission Systems (AREA)
- Interface Circuits In Exchanges (AREA)
Description
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Einrichtung zur Verhütung von Störungen in Telegraphenleitungen mit Wechsel. strombetrieb.
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Wie bei den gewöhnlichen telegraphischen Stromkreisen können ausser den Endämtern auch Zwischenämter auf derselben Linie eingeschaltet sein. Diese Zwischenämter, die alle von der Sendestation ausgeschickten Zeichen empfangen, können in Nebenschluss zwischen Leitungsdraht und Erde (Fig. 1) oder in Serie mit dem Leitungsdraht (Fig. 3) eingeschaltet sein. Im letzteren Falle kann in den Leitungsdraht der Primärstromkreis eines Transformators eingeschaltet sein, in dessen Sekundärstromkreis dann die Apparate des Amtes (Fig. 4) eingeschaltet sind.
Der von einem Amt ausgeschickte Übermittlungsstrom versetzt den Anker des polarisierten Relais der andern Ämter in Schwingungen und diese Schwingungen werden dazu benutzt, um den Stromkreis einer Ortsbatterie, die mit oder ohne Hilfe eines zweiten Relais den Betrieb des Telegraphenapparates regelt, intermittierend zu schliessen oder zu öffnen.
Die Fig.'5 zeigt das vollständige Schema der Verbindungen eines Telegraphenamtes, in dem der im Lokalstromkreise der Batterie P2 liegende Schreibapparat A durch das polarisierte Relais jssi unter
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schlüssels M. Der Empfangsapparat kann schliesslich noch dadurch wesentlich vereinfacht werden, dass man nur das als Klopfer wirkende Relais verwendet.
PATENT-ANSPRÜCHE :
1. Einrichtung zur Verhütung von Störungen in Telegraphenleitungen mit Erdrückleitung durch benachbarte Wechseltrom-Starkstromleitungen bei Verwendung hochfrequenter Wechselstrom als Telegraphierströme, dadurch gekennzeichnet, dass in die Telegraphenleitung eine grosse Selbstinduktion und eine kleine Kapazität eingeschaltet sind, die für den Telegraphierstrom hoher Frequenz in Resonanz stehen.
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Device for the prevention of disturbances in telegraph lines with change. electricity operation.
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As with the usual telegraphic circuits, in addition to the end offices, intermediate offices can also be switched on on the same line. These intermediate exchanges, which receive all the characters sent out by the transmitting station, can be switched on in a shunt between the line wire and earth (FIG. 1) or in series with the line wire (FIG. 3). In the latter case, the primary circuit of a transformer can be connected in the line wire, in whose secondary circuit the apparatus of the office (Fig. 4) are then connected.
The transmission current sent by an office sets the armature of the polarized relay of the other offices in oscillation and these oscillations are used to intermittently close or open the circuit of a local battery, which controls the operation of the telegraph apparatus with or without the help of a second relay .
Fig. 5 shows the complete diagram of the connections of a telegraph office in which the writing apparatus A located in the local circuit of the battery P2 is subordinated by the polarized relay jssi
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key M. Finally, the receiver can be simplified considerably by only using the relay that acts as a knocker.
PATENT CLAIMS:
1. Device for preventing interference in telegraph lines with earth return lines through neighboring AC power lines when using high-frequency alternating current as telegraph currents, characterized in that a large self-induction and a small capacitance are switched on in the telegraph line, which are in resonance for the telegraph current of high frequency.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT93370T | 1918-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT93370B true AT93370B (en) | 1923-06-25 |
Family
ID=3613283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT93370D AT93370B (en) | 1918-12-20 | 1918-12-20 | Device for the prevention of disturbances in telegraph lines with alternating current operation. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT93370B (en) |
-
1918
- 1918-12-20 AT AT93370D patent/AT93370B/en active
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