DE169160C

DE169160C -

Info

Publication number: DE169160C
Application number: DE1905169160D
Authority: DE
Filing date: 1905-03-21
Anticipated expiration: 1925-03-22

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die vorliegende Erfindung hat den Zweck, die zeitweilige Hervorrufung eines Wechselstromes in einem Stromkreise von beliebigen Stellen des letzteren aus zu ermöglichen. Diese Aufgabe ist der Erfindung gemäß dadurch gelöst, daß an den Stellen, von denen aus die Hervorrufung des Wechselstromes bewirkt werden soll, Kondensatoren in die Leitung eingeschaltet sind und parallel zuThe present invention has the purpose of temporarily inducing an alternating current in a circuit from any point in the latter. According to the invention, this object is thereby achieved solved that at the points from which the induction of the alternating current is to be effected, capacitors in the Line are switched on and in parallel too

ίο jedem Kondensator ein für gewöhnlich geschlossener Schalter angeordnet ist, so daß aus einer mit der Leitung verbundenen Gleichstromquelle ein Strom über die Leitung fließen kann. Wird einer der parallel zu den Kondensatoren liegenden Schalter geöffnet, so wird der im Ruhezustand fließende Gleichstrom unterbrochen und hierdurch auf elektromagnetischem Wege der Wechselstromerzeuger zur Wirkung gebracht, während beim Schließen des Schalters der Gleichstrom wieder hergestellt und durch denselben der Wechselstromerzeuger außer Wirkung gesetzt wird.ίο a usually closed capacitor for each capacitor Switch is arranged so that a current via the line from a direct current source connected to the line can flow. If one of the switches parallel to the capacitors is opened, so the direct current flowing in the idle state is interrupted and thereby the alternating current generator is electromagnetic brought into effect, while when the switch is closed, the direct current is restored and through the same the alternator is disabled.

Die praktische Ausführung der vorliegenden Erfindung kann sich z. B. in der Weise gestalten, daß der im Ruhezustande angezogene Anker eines Relais, welches durch den über die Leitung fließenden Gleichstrom erregt wird, bei Unterbrechung dieses Stromes abfällt und hierbei zwei Schalter schließt, von denen der eine die Leitung mit den Klemmen einer Wechselstrommaschine in Verbindung bringt und der andere den Stromkreis eines mit der Wechselstrommaschine gekuppelten Gleichstrommotors schließt. Beim Wiederschließen des mit dem Kondensator verbundenen Schalters wird dann ein dem Wechselstrom übergelagerter Gleichstrom hergestellt und durch diesen vermittels des Relais, welches so eingerichtet ist, daß es durch den Wechselstrom allein nicht beeinflußt wird, die Wechselstrommaschine und ihr Antriebsmotor ausgeschaltet. The practice of the present invention can e.g. B. in the way shape that the in the rest state attracted armature of a relay, which by the direct current flowing through the line is excited when this current is interrupted drops and this closes two switches, one of which connects the line with the Brings terminals of an alternator in connection and the other the circuit of one with the alternator coupled DC motor closes. When the switch connected to the capacitor is closed again then a direct current superimposed on the alternating current is produced and mediated by this of the relay, which is arranged so that it is not affected by the alternating current alone, the alternating current machine and their drive motor switched off.

Eine andere Ausführungsform der Erfindung, bei welcher als Wechselstromerzeuger die den im Ruhezustande fließenden Gleichstrom liefernde Batterie in Verbindung mit einem Kommutator dient, ist in der beiliegenden Zeichnung dargestellt. Mit c sind die erfindungsgemäß an entsprechenden Stellen in die Leitung α eingeschalteten Kondensatoren bezeichnet. Parallel zu jedem Kondensator liegt ein Schalter s. k stellt einen Kommutator dar, der aus dem drehbaren Schalthebel e und den abwechselnd mit dem positiven und negativen Pole der Batterie b verbundenen Kontaktstücken / besteht. Die Drehachse des Schalthebels e ist mit dem einen und die Mitte der Batterie b mit dem anderen Zweige der Leitung α verbunden. Der Hebel e wird mittels des Schaltrades d Another embodiment of the invention, in which the battery supplying the direct current flowing in the idle state, in conjunction with a commutator, is used as the alternator, is shown in the accompanying drawing. The capacitors connected according to the invention at corresponding points in the line α are denoted by c. A switch s is located parallel to each capacitor . K represents a commutator which consists of the rotatable switching lever e and the contact pieces / connected alternately to the positive and negative poles of the battery b. The axis of rotation of the shift lever e is connected to the one and the center of the battery b to the other branches of the line α . The lever e is by means of the ratchet wheel d

Claims

moved by the armature ρ of the electromagnet m . The latter is connected to the secondary winding of the transformer t , the primary winding of which is in the line α . The electromagnet m is polarized and its armature is attracted to opposite sides by currents flowing in different directions.

The mode of operation of the entire arrangement is as follows: In the idle state, a direct current flows from that pole of the battery b to which the lever e is currently connected, via this lever and the line a closed by the switch s.

If one of the switches s is opened, the current in line a disappears and the capacitor lying parallel to the switch in question is charged. As a result, a current is generated in the secondary winding of the transformer, which excites the electromagnet m and causes the armature ρ to be attracted. As a result, the lever e is switched to the next contact of the commutator k , so that it is connected to the other pole of the battery b . As a result of the switchover of the battery, the capacitor is charged in the opposite sense, with a current being induced in the secondary winding of the transformer t , which is directed in the opposite direction to the first secondary current and folds the armature ρ of the electromagnet m again. As a result, the lever e is moved again to the next contact, causing the battery to switch, which again results in a charge of the capacitor in the opposite direction, etc. of the commutator for the next charge is effected.

With the help of the circuit arrangement described above, type printing telegraph systems with several apparatuses connected one behind the other in a line, advantageously by means of a single one common battery and operate at the same time, while so far with such Switching the Apparatus A special power source was required for each apparatus.

To enable this mode of operation,

a capacitor is switched into the line of every telegraph apparatus, which is short-circuited when the system is idle. Should one of the devices be used as a transmitter are used, the short-circuit branch is opened by pressing one of its keys interrupted and the capacitor switched directly into the line, creating a series of in the manner described Current pulses are generated in alternating directions. Through these current pulses are the type wheels of all the devices in the loop are set in motion. With the type wheel of the transmitter, a circuit breaker rotates at the same time, which are determined by the position of the character to be transferred on the type wheel Points in time comes into effect. The capacitor connected in front of the transmitting apparatus is activated by this current-closing device short-circuited again, so that the sending of alternating currents into the line is interrupted and the type wheels in the position required for printing stop. The direct current flowing through the line again has an effect the pressure magnets of all the devices connected in series, so that the imprint of the character to be transmitted takes place on all devices.

Godfather ν τ-Α ν Proverbs:

¹ I. Circuit arrangement for the temporary production of an alternating current in a circuit from one or more arbitrary points of the latter, characterized in that capacitors are switched on at the relevant points in the line and a usually closed switch is arranged parallel to each capacitor, the interrupts a direct current flowing through the line when it is opened, as a result of which the alternating current generator is brought into effect by electromagnetic means, while when the switch is closed the direct current is restored and the alternating current generator is put out of action by the same.

2. Embodiment according to claim 1, characterized in that the alternating current is generated by the DC source supplying the quiescent current in conjunction with a commutator, by means of which Switching the capacitor is alternately charged in different ways, the switching of the commutator for the next charge is effected by the charging current each time.

3. The circuit arrangement according to claim ι and 2 in use for operations of type printing telegraphs - devices that are arranged in several rows in a line, with common, battery connected to a commutator, characterized in that a

in the idle state short-circuited capacitor is switched on in the line and through the organs serving for signaling of the in the state of rest the line flowing direct current is interrupted and the sending of alternating current into the line is initiated, while by a current connection device connected to the type wheel of the transmitter 'the direct current is closed again and the alternating current supply is interrupted.

For this purpose ι sheet of drawings.