AT67283B - Circuit for telephone exchanges. - Google Patents

Circuit for telephone exchanges.

Info

Publication number
AT67283B
AT67283B AT67283DA AT67283B AT 67283 B AT67283 B AT 67283B AT 67283D A AT67283D A AT 67283DA AT 67283 B AT67283 B AT 67283B
Authority
AT
Austria
Prior art keywords
relay
circuit
telephone exchanges
plug
armature
Prior art date
Application number
Other languages
German (de)
Inventor
Elmer Reed Corwin
Original Assignee
Elmer Reed Corwin
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 Elmer Reed Corwin filed Critical Elmer Reed Corwin
Application granted granted Critical
Publication of AT67283B publication Critical patent/AT67283B/en

Links

Landscapes

  • Mobile Radio Communication Systems (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 
 
 EMI1.3 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 
 EMI2.2 
 

 <Desc/Clms Page number 3> 

 
 EMI3.1 
 



   Nach Einsetzen des Abfragestöpsels 7 in die Klinke des   anrufenden   Teilnehmers 120 vollendet die Beamtin die Verbindung, indem sie den Stöpsel 81 in die Klinke 6 des angerufenen 
 EMI3.2 
 



   Die Erregung des Abschaltrelais 23   3 bringt. dell Anker   dieses Relais gegen den Arbeitskontakt 37, so dass ein Stromkreis durch die Spule 36 am   Wällerschalter   des anrufenden Teilnehmers geschlossen wird. Dieser Strom verläuft von der   Batterie 79,   durch den Kontakt 25, 
 EMI3.3 
 



   Die Einfiihrung des Verbindungsstöpsels 81 in die Klinke 6 des aufgerufenen Teilnehmers 190 schliesst den Stromkreis durch das Relais 343, das mit dem Körper 341 des Stöpsels 81 verbunden ist in folgender Weise : Batterie 19, Relais   J-P,     Körper J des   Stöpsels 81, Buchse der Klinke des   aufgerufenen Teilnehmers 190   und durch dessen Ahschaltrelais zur Erde. 



   Das zuletzt genannte Relais   3.   zieht seinen Anker an und unterbricht dadurch den Strom- kreis des Relais 29. Der angezogene Anker dieses Relais geht   nunmehr   wieder gegen seinen Ruhe- kontakt und die Erdung 27 wird wieder wirksam.   Die Hignalvorric1ltung   ist demnach wieder   auswahlfähig,   sobald die Verbindung der beiden   Teilnehmer 720   und 190 hergestellt ist. 



   Die Rückkehr des Wählerschalters, verursacht durch Erregung der Magnetspule 36, unter bricht natürlich auch den   Kontakt J ? J,   und dadurch wird das Relais 27 stromlos. Die Abschaltung dieses Relais unterbricht jedoch den Stromkreis des Relais   jazz   das   1111t   dem Stöpsel 7 in Ver- bindung steht, nicht ; da jedoch die beiden Relais, 343 nun erregt sind, so ist der Stromkreis des   Relais. 29   und 35 unterbrochen und die Erdung 27 bleibt wirksam. Will sich die Beamtin mit einem der Teilnehmer in Verbindung setzen, so kann sie durch Entfernung eines der Stöpsel 7 oder 81 das Relais 35 erregen, wodurch dieses seinen   Doppelanker     51   anzieht und dadurch den
Beamtenabfrageapparat 32 in Brücke zwischen die Leiter der Schnurverbindung schaltet. 



   Statt dessen kann auch ein Schalter angeordnet sein, der in bekannter Weise den Beamten-   I abfrageapparat einschaltet.   Die Signallampen, welche bei Beendigung des Gespräches aufleuchten und die anderen Hilfsapparate bekannter Schnurleitungssysteme sowie die Wecker 4 und
Kondensatoren 5 auf den Teilnchmerstellen sind in bekannter Weise ausgebildet und bedürfen keiner näheren Beschreibung. 
 EMI3.4 




   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2
 
 EMI1.3
 

 <Desc / Clms Page number 2>

 
 EMI2.1
 
 EMI2.2
 

 <Desc / Clms Page number 3>

 
 EMI3.1
 



   After inserting the interrogation plug 7 into the jack of the calling subscriber 120, the officer completes the connection by inserting the plug 81 into the jack 6 of the called party
 EMI3.2
 



   The excitation of the cut-off relay 23 3 brings. dell armature of this relay against the normally open contact 37, so that a circuit is closed by the coil 36 on the Wällerschalter of the calling subscriber. This current runs from the battery 79, through the contact 25,
 EMI3.3
 



   The introduction of the connecting plug 81 into the pawl 6 of the called subscriber 190 closes the circuit through the relay 343, which is connected to the body 341 of the plug 81 in the following way: battery 19, relay JP, body J of the plug 81, socket of the pawl of the called subscriber 190 and through his switching relay to earth.



   The last-mentioned relay 3. attracts its armature and thereby interrupts the circuit of the relay 29. The armature of this relay that has been attracted now goes against its normally closed contact again and the grounding 27 becomes effective again. The audio device can therefore be selected again as soon as the connection between the two subscribers 720 and 190 is established.



   The return of the selector switch, caused by the excitation of the magnetic coil 36, of course also breaks the contact J? J, and thereby the relay 27 is de-energized. Switching off this relay, however, does not interrupt the circuit of the relay jazz that is connected to plug 7; but since the two relays, 343 are now energized, the circuit of the relay is. 29 and 35 interrupted and the grounding 27 remains effective. If the officer wants to get in touch with one of the participants, she can excite the relay 35 by removing one of the plugs 7 or 81, which attracts its double armature 51 and thereby the
Official query apparatus 32 switches in bridge between the conductors of the cord connection.



   Instead of this, a switch can also be arranged which switches on the official interrogator in a known manner. The signal lamps, which light up when the call is ended, and the other auxiliary devices of known cord systems and alarm clocks 4 and
Capacitors 5 on the subscriber positions are designed in a known manner and do not require any further description.
 EMI3.4


 
AT67283D 1912-05-27 1912-05-27 Circuit for telephone exchanges. AT67283B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT67283T 1912-05-27

Publications (1)

Publication Number Publication Date
AT67283B true AT67283B (en) 1914-12-28

Family

ID=3589176

Family Applications (1)

Application Number Title Priority Date Filing Date
AT67283D AT67283B (en) 1912-05-27 1912-05-27 Circuit for telephone exchanges.

Country Status (1)

Country Link
AT (1) AT67283B (en)

Similar Documents

Publication Publication Date Title
AT67283B (en) Circuit for telephone exchanges.
DE1564174A1 (en) Electromagnetic relay
AT59138B (en) Burglar alarm system connected to a telephone line.
AT69603B (en) Telephone system.
AT16928B (en) Call switching for telephone exchanges.
AT52696B (en) Test circuit for offices with common speech lines for several participants.
DE282465C (en)
AT28787B (en) Circuit arrangement for telephone main stations.
DE554283C (en) Theft protection for motor vehicles
AT85951B (en) Telephone system in which the connection lines are indicated by lamps as occupied or free.
AT98010B (en) Electric alarm device.
AT69593B (en) Telephone system.
AT59139B (en) Circuit for three-wire telephone exchanges with central battery operation.
AT70689B (en) Alarm device.
AT90381B (en) Telephone exchange with inquiry switch for exchange line and extension traffic.
AT48830B (en) Establishment at subscriber stations for the use of portable microphones.
AT52493B (en) Circuit breaker for electric incandescent lamp power lines for producing an auxiliary induction current for short-circuiting an incandescent lamp fuse.
AT44410B (en) Circuit arrangement for electrical switching elements, such as relays and the like.
AT121202B (en) Circuit arrangement for telephone subscriber stations for controlling long-distance calls.
DE970130C (en) Electrothermally controlled electromagnetic flasher unit, especially for the flashing direction indicator on motor vehicles
AT128732B (en) Circuit arrangement for telephone systems.
AT91075B (en) Telephone system with several subscriber stations to be optionally called from an exchange.
AT16420B (en) Circuit arrangement for telephone exchanges.
AT78341B (en) Circuit arrangement for several extensions located on a common line with optional calls through step-by-step switching devices.
DE350057C (en) Electrical relay for interrupting circuits in the event of insulation faults