AT69909B - Secret voice circuit for line dialer telephone systems. - Google Patents

Secret voice circuit for line dialer telephone systems.

Info

Publication number
AT69909B
AT69909B AT69909DA AT69909B AT 69909 B AT69909 B AT 69909B AT 69909D A AT69909D A AT 69909DA AT 69909 B AT69909 B AT 69909B
Authority
AT
Austria
Prior art keywords
telephone systems
voice circuit
secret voice
line
relay
Prior art date
Application number
Other languages
German (de)
Inventor
Viktor Richter
Original Assignee
Viktor Richter
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 Viktor Richter filed Critical Viktor Richter
Application granted granted Critical
Publication of AT69909B publication Critical patent/AT69909B/en

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  • Telephonic Communication Services (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 lagert, kann nun von einer anderen Stelle, z. B. Stelle III, nicht abgehorcht werden, da die Leitung   k, 1, welche über   den Wähler b bei Stelle   Ill   an den Federn 5, 8 des Relais   e liegt,   nicht an das Mikrophon gelegt werden kann, weil Relais e, wie schon beschrieben, nicht anspricht, 
 EMI2.2 
 der Batterie B vom Relais e abhebt. 



   PATENT-ANSPRÜCHE :
1.   Geheimsprechschaltung   für Linienwähler-Telephonanlagen, dadurch gekennzeichnet, dass durch die beim Anschliessen einer Sprechstelle (I) an eine andere (II) über den einen Ast (l) 
 EMI2.3 




   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2
 

 <Desc / Clms Page number 2>

 
 EMI2.1
 stores, can now from another place, z. B. Point III, not listened to, since the line k, 1, which is located on the selector b at point III on the springs 5, 8 of the relay e, cannot be placed on the microphone because relay e, as already described , does not respond,
 EMI2.2
 of battery B lifts off relay e.



   PATENT CLAIMS:
1. Secret speech circuit for line dialer telephone systems, characterized in that when connecting a call station (I) to another (II) via one branch (l)
 EMI2.3

Claims (1)

2. Geheimsprechschaltung nach Anspruch 1, dadurch gekennzeichnet, dass beim Hinzuschalten einer anderen anrufenden Stelle (III) bei dieser beim Drücken der Anruftaste (a) ein Trennrelais (d) über die an die Sprechleitung (k) gelegte Batteriespannung zum Ansprechen kommt und dabei die Batteriezuführung vom Umschalterelais (e) abhebt, so dass dieses Relais (e) nicht EMI2.4 2. Secret speech circuit according to claim 1, characterized in that when switching on another calling station (III) at this when pressing the call button (a) an isolating relay (d) via the battery voltage applied to the speech line (k) comes to respond and thereby the Battery feed from changeover relay (e) lifts off, so that relay (e) does not EMI2.4
AT69909D 1914-07-20 1914-07-20 Secret voice circuit for line dialer telephone systems. AT69909B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT69909T 1914-07-20

Publications (1)

Publication Number Publication Date
AT69909B true AT69909B (en) 1915-09-25

Family

ID=3591700

Family Applications (1)

Application Number Title Priority Date Filing Date
AT69909D AT69909B (en) 1914-07-20 1914-07-20 Secret voice circuit for line dialer telephone systems.

Country Status (1)

Country Link
AT (1) AT69909B (en)

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