AT81875B - Device for touching signals when working. Device for touching signals when working with medium-frequency machines. with medium frequency machines. - Google Patents

Device for touching signals when working. Device for touching signals when working with medium-frequency machines. with medium frequency machines.

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Publication number
AT81875B
AT81875B AT81875DA AT81875B AT 81875 B AT81875 B AT 81875B AT 81875D A AT81875D A AT 81875DA AT 81875 B AT81875 B AT 81875B
Authority
AT
Austria
Prior art keywords
working
medium
touching signals
frequency machines
machines
Prior art date
Application number
Other languages
German (de)
Original Assignee
Robert Bosch Ag Robert Bosch A
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 Robert Bosch Ag Robert Bosch A filed Critical Robert Bosch Ag Robert Bosch A
Application granted granted Critical
Publication of AT81875B publication Critical patent/AT81875B/en

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  • Keying Circuit Devices (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Einrichtung zum Tasten von Signalen beim Arbeiten mit Mittelfrequenzmaschinen. 
 EMI1.1 
 

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 werden, der zu dem Erregervorschaltwiderstand führt, oder es kann auch rein elektromagnetisch durch Einschalten eines Elektromagneten in die   Wechselstromteitung ein   Kontakt betätigt werden, der beim   Schiessen   des Tasters einen Widerstand abschaltet, beim Öffnen ihn zuschaltet, 
 EMI2.1 
 ein Amperemeter zur Messung des Erregerstromes,   IV   die Wechselstromwicklung mit den
Enden U und V, T der Taster und Tr der an den Enden U V angeschlossene Hoch-   spannungstransform3. tor,   In die Erregerwicklung-E der Maschine ist ein Regulierwiderstand R eingeschaltet, der ausser einem festen Anschluss zwei Schleifkontakte a und b besitzt.

   Der
Taster T ist nach der Figur mit einem zweiten Taster   zwangläufig   verbunden, der einer- seits zum festen Anschluss des Regulierwiderstandes R, andrerseits zum Schleifkontakt a führt ; der Schleifkontakt b führt zur Erregerwicklung E. 



   Mit Hilfe der Schleifkontakte a und b lässt sich nun der Erregerstrom so einstellen, das bei Strich und Punkt immer der gleiche Wert erreicht wird, wodurch in beiden Fällen ein guter Ton zu erzielen ist.



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  Device for keying signals when working with medium-frequency machines.
 EMI1.1
 

 <Desc / Clms Page number 2>

 which leads to the excitation series resistor, or a contact can also be actuated purely electromagnetically by switching on an electromagnet in the AC line, which switches off a resistor when the button is closed and switches it on when it is opened,
 EMI2.1
 an ammeter for measuring the excitation current, IV the alternating current winding with the
Ends U and V, T of the button and Tr of the high-voltage transformer connected to the ends of U V3. tor, A regulating resistor R is connected to the exciter winding E of the machine, which has two sliding contacts a and b in addition to a fixed connection.

   The
According to the figure, button T is inevitably connected to a second button which, on the one hand, leads to the fixed connection of the regulating resistor R and, on the other hand, to the sliding contact a; the sliding contact b leads to the excitation winding E.



   With the help of sliding contacts a and b, the excitation current can now be set in such a way that the same value is always achieved for the line and dot, so that a good tone can be achieved in both cases.

 

Claims (1)

PATENT-ANSPRUCH : Einrichtung zum Tasten von Signalen beim Arbeiten mit Mittelfrequenzmaschinen die ein gemeinsames Feld für Gleich-und Wechselstrom haben und bei denen die Erregung durch einen Vorschaltwiderstand im Erregerstromkreis geändert wird, dadurch gekennzeichnet, dass beim Zeichengeben ein Teil des Vorschaltwiderstandes kurz geschlossen wird, so dass bei geöffnetem Taster ein grösserer Vorschaltwiderstand in den Erregersteom eingeschaltet ist als bei niedergedrücktem Taster. EMI2.2 PATENT CLAIM: Device for keying signals when working with medium-frequency machines which have a common field for direct and alternating current and in which the excitation is changed by a series resistor in the excitation circuit, characterized in that when signals are given, part of the series resistor is short-circuited so that when the Button, a larger series resistance is switched on in the excitation stream than when the button is pressed. EMI2.2
AT81875D 1917-06-01 1918-03-29 Device for touching signals when working. Device for touching signals when working with medium-frequency machines. with medium frequency machines. AT81875B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE81875X 1917-06-01

Publications (1)

Publication Number Publication Date
AT81875B true AT81875B (en) 1920-12-10

Family

ID=5639622

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81875D AT81875B (en) 1917-06-01 1918-03-29 Device for touching signals when working. Device for touching signals when working with medium-frequency machines. with medium frequency machines.

Country Status (1)

Country Link
AT (1) AT81875B (en)

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