AT67907B - Arrangement for telephone systems with a common line for several participants. - Google Patents

Arrangement for telephone systems with a common line for several participants.

Info

Publication number
AT67907B
AT67907B AT67907DA AT67907B AT 67907 B AT67907 B AT 67907B AT 67907D A AT67907D A AT 67907DA AT 67907 B AT67907 B AT 67907B
Authority
AT
Austria
Prior art keywords
arrangement
common line
telephone systems
line
several participants
Prior art date
Application number
Other languages
German (de)
Inventor
Richard Dr Friedmann
Original Assignee
Richard Dr Friedmann
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 Richard Dr Friedmann filed Critical Richard Dr Friedmann
Application granted granted Critical
Publication of AT67907B publication Critical patent/AT67907B/en

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  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Description

  

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  Anordnung für Fernsprechanlagen mit gemeinsamer Leitung für mehrere Teilnehmer. 



    Die Erfindung bezieht sich auf eine Signalanordnung für Telephonanlagen, bei welchen einer Anzahl von Telephonapparaten eine gemeinsame Leitung zur Verfügung steht, wobei im Falle des Besetztseins der Leitung in sämtlichen Telephonapparaten ein Besetztzeichen erscheint. 



  Derartige Telepbonsysteme sind insbesondere dort üblich, wo eine Anzahl Nebenstellen an eine Amtsleitung angeschlossen sind. Bei derartigen Anlagen ergibt sich jedoch der Nachteil. dass   
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 einer Leitung, beispielsweise einer Postleitung, an sämtlichen   Telephonapparaten mit Ausnahme   der die Postleitung besetzt   hütenden   die   Amtstaste oder der mtshebt'l   in den   Apparatkasten   hineinversenkt wird.

   Bei dieser   Anordnung   ist ein besonderes Schauzeichen nicht erforderlich, weil die Amtstaste oder der Hebel im Falle des Besetztseins (lern handbereich des Teilnehmers voll- 
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 des Hebels ausgeschlossen ist, im Gegensatz zu den Systemen bekannter Art. welche im Falle des   Besetztseins   der Postleitung eine Sperrung des Amtshebels vorsehen, nicht aber ein Verschwinden desselben. 
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 wobei wie bisher die Anschaltung, beispielsweise an die   Postleitung, durch Niederdrücken des  
Knopfes erfolgt. Hiebei nimmt der Knopf a eine Scheibe c nach unten mit. Die Scheibe c drückt ihrerseits auf einen Stift   d,   der in bekannter Weise den Umschalter bewegt. Der Umschalter ist   @ nicht dargestellt,   da derselbe mit vorliegender Erfindung in keinem Zusammenhang steht. 



   Für den Fall, dass die Postleitung besetzt ist, ist der in der sogenannten   Signalleitung   liegende Elektromagnet e   erect uns   zieht den   Anker f an.   Die Art und Weise, wie die Signal- 
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  Arrangement for telephone systems with a common line for several participants.



    The invention relates to a signal arrangement for telephone systems in which a number of telephone sets are available on a common line, with a busy signal appearing in all of the telephone sets when the line is busy.



  Such telephony systems are particularly common where a number of extensions are connected to an exchange line. In such systems, however, there is the disadvantage. that
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 a line, for example a post line, on all telephones with the exception of those who keep the post line occupied, the office key or the mtsoben'l is sunk into the box.

   With this arrangement, a special indicator is not required because the exchange key or the lever in the event of occupancy (learning of the subscriber's hand area is full
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 of the lever is excluded, in contrast to the systems of the known type. In the event of the post office line being busy, the official lever is blocked, but not its disappearance.
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 where as before the connection, for example to the post office line, by pressing the
Button. The button a takes a disk c down with it. The disc c in turn presses on a pin d which moves the switch in a known manner. The changeover switch @ is not shown since it has no connection with the present invention.



   In the event that the post line is occupied, the electromagnet in the so-called signal line is erect and the armature f is attracted. The way the signal
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AT67907D 1912-11-19 1913-09-27 Arrangement for telephone systems with a common line for several participants. AT67907B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE67907X 1912-11-19

Publications (1)

Publication Number Publication Date
AT67907B true AT67907B (en) 1915-02-10

Family

ID=5634148

Family Applications (1)

Application Number Title Priority Date Filing Date
AT67907D AT67907B (en) 1912-11-19 1913-09-27 Arrangement for telephone systems with a common line for several participants.

Country Status (1)

Country Link
AT (1) AT67907B (en)

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