DE143513C

DE143513C -

Info

Publication number: DE143513C
Application number: DENDAT143513D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Vorliegende Bogenlampe weist eine Vorrichtung auf, welche die Lampe, sobald diese betriebsunfähig wird, aus dem Stromkreis ausschaltet, so daß die übrigen in demselben Stromkreis in Hintereinanderschaltung liegenden Lampen in ihrer Wirkungsweise nicht gestört werden. An den Anker eines in dem Elektrodenstromkreis liegenden Elektromagneten ist ein Stromschlußhebel angelenkt, welcher beim Brennen der Lampe infolge der Anziehung des erwähnten Ankers und auf Grund seines Eigengewichts einen Nebenschluß offenhält. Sobald aber der Widerstand des Elektrodenstromkreises übermäßig zunimmt, wird durch die Anziehung des den Kohlenvorschub bewirkenden Ankers seitens des zugehörigen Elektromagneten der Stromschlußhebel gegen ein Stromschlußstück gepreßt, wodurch der Nebenschluß geschlossen wird.The present arc lamp has a device which the lamp as soon as it is inoperative is switched off from the circuit, so that the others in the same circuit are connected in series Lamps are not disturbed in their mode of operation. To the armature one in the electrode circuit lying electromagnet is hinged to a current release lever, which when the lamp is burning due to the attraction of the mentioned anchor and keeps a shunt open due to its own weight. As soon but the resistance of the electrode circuit increases excessively, is caused by the Attraction of the armature causing the coal feed on the part of the associated electromagnet the short-circuit lever is pressed against a short-circuit, whereby the shunt is closed.

Auf der Zeichnung ist die Anwendung der Vorrichtung bei einer Lampe gezeigt, bei welcher der Kohlenvorschub mittels eines in bekannter Weise im Nebenschluß geschalteten Elektromagneten bewirkt wird.In the drawing, the application of the device to a lamp is shown, in which the coal feed is effected by means of an electromagnet connected in a known manner in the bypass.

Fig. ι ist ein senkrechter Schnitt einer solchen Bogenlampe im stromlosen Zustand und Fig. 2 eine schematische Ansicht der Lampe im Betriebe.Fig. Ι is a vertical section of such Arc lamp in the currentless state and FIG. 2 is a schematic view of the lamp in operation.

Fig. 3 zeigt die einzelnen Teile des Stromschlußhebels. Fig. 3 shows the individual parts of the circuit breaker.

Fig. 4 ist eine Oberansicht des zusammengesetzten Hebels.Figure 4 is a top view of the assembled lever.

Fig. 5 stellt eine andere Ausführungsform der Erfindung dar.Fig. 5 illustrates another embodiment of the invention.

Bei der vorliegenden Lampe wird die untere Kohle 11 von einem Arm 12 getragen, der sich von dem Lampengestell 1 abzweigt. Die obere Kohle 13 dagegen ist in üblicher Weise in einem röhrenförmigen Fortsatz 14 des Gestelles angeordnet und kann mittels einer beliebigen Kohlenvorschubvorrichtung auf- und niederbewegt werden. Die Kohlenvorschubvorrichtung kann beispielsweise nach Art einer Zange angeordnet sein, wie aus der Zeichnung ersichtlich ist, oder es kann der Kohlenvorschub vermittels einer Räderübersetzung be wirkt werden. Der Vorschubhebel 15 wird von einem schwingenden Lagerarm 16 getragen, der sich der Länge nach bezw. horizontal hin- und herbewegen kann, wodurch die günstigsten Ergebnisse erzielt werden, wenn die Kohle vorgeschoben wird bezw. die Lampe sich in Tätigkeit befindet. Eine Gelenkstange 17 verbindet den Vorschubhebel 15 mit dem drehbaren Kohlenvorschubanker 18, der an seinen Enden mit den Tauchkernen 19 und 20 versehen ist, welche zu dem Nebenschlußmagneten 21 bezw. dem Vorschubmagneten 22 gehören. Die Magnete 21, 22 können entweder auf entgegengesetzten Seiten oder auf derselben Seite des Vorschubankers 18 — je nach der Art der Lampe — angeordnet werden. Die Klemme 23 stellt den positiven Pol der Lampe dar; sie steht mit dem Lampengestell in Verbindung. Die als negativer Pol dienende Klemme 24 dagegen ist vom Lampengestell isoliert. Die Enden der Wicklung des Vorschubmagneten 22 sind an die Klemmen 23 und 24 angeschlossen; der zu dem Ausschalter gehörende Magnet 25 dagegen ist einerseits mit der Klemme 24, andererseits mit der unteren Kohle 11 verbunden. Wird der Ausschaltmagnet 25 erregt, soIn the present lamp, the lower carbon 11 is carried by an arm 12, which branches off from the lamp frame 1. The upper coal 13, however, is more common Way arranged in a tubular extension 14 of the frame and can by means of any Coal feed device are moved up and down. The coal feeding device can for example be arranged in the manner of tongs, as can be seen from the drawing, or it can be the coal feed be effected by means of a gear ratio. The feed lever 15 is carried by a swinging bearing arm 16, the length BEZW. horizontal can move back and forth, which will give the best results when the coal is advanced respectively. the lamp is in operation. A link rod 17 connects the feed lever 15 with the rotatable coal feed armature 18, which is attached to his Ends with the plunger cores 19 and 20, which to the shunt magnet 21 respectively the feed magnet 22 belong. The magnets 21, 22 can either be on opposite sides Sides or on the same side of the shank anchor 18 - depending on the type of Lamp - to be arranged. Terminal 23 represents the positive pole of the lamp; she is in connection with the lamp frame. Terminal 24 serving as the negative pole however, is isolated from the lamp frame. The ends of the winding of the feed magnet 22 are connected to terminals 23 and 24; the magnet 25 belonging to the circuit breaker on the other hand, it is connected to the terminal 24 on the one hand and to the lower carbon 11 on the other hand. If the switch-off magnet 25 is energized, so

Claims

the anchor shoe 26 is tightened, whereupon the switch-off lever 28 due to its own weight falls and comes out of contact with a current connector 27, which of the lamp frame is insulated and which forms one end of the wire of the shunt magnet 21, the other end of the wire is electrically connected to the terminal 24. In the circuit of the shunt magnet 21 is a strong resistance BEZW. a choke coil 29 connected, which serves to prevent a short circuit in the lamp if the coals are still in each other when the lamp is switched on Are touch. The choke coil 29 offers greater resistance to the electric current than the resistances of the winding of the switch-off magnet 25 and the coals 11 and 13 together, so that as soon as the coals come into contact, the current flows through the Switch-off magnet 25 flows through it. This makes the shoe 26 of the anchor lever 31 attracted and the shunt magnet 21 switched off, so that the feed magnet 22 is now can cause the coal feed in the usual way.

The advancing armature 18 also carries a current connection piece 27 opposite Pin or arm 30, and it is thus the shut-off lever 28 is able to move between the Parts 27 and 30 to move. The switch-off lever is either with the armature lever 3 1 or directly hinged to the frame of the lamp. The anchor lever 31 carries also a projection 32 (Fig. 3), which is in the vicinity of the pivot point and against which the inner end 33 of the switch-off lever 28 pushes. Thus becomes the shut-off lever 28 by the weight of the anchor lever 31 provided with the shoe 26 with the insulated contact 27 brought into contact when the lamp is allowed to pass the current ready. The switch-off lever 28 can thus be moved under the influence of the advancing armature 18 move freely, with the mediation of the electromagnet 22, as soon as the arc becomes excessively long or any other abnormal condition occurs.

In the case of the arc lamp shown in FIG. 1, the electrical current comes from the terminal 23 through the lamp frame 1, the switch-off lever 28, the contact 27, the resistor respectively the choke coil 29, the electromagnet 21 and from there to the terminal 24. In the process, the shunt magnet 21 is excited and the plunger 19 together with the feed armature 18 lifted, whereby the feed device disengaged and the coal 13 as a result is lowered until it hits the lower carbon 11. Now there is a short circuit through the clamp 23, the frame 1, the brushes 13 and 11, the magnet 25 and the clamp 24. The switch-off magnet 25 is thus excited and the anchor shoe 26 together with the anchor lever 31 attracted so that the switch-off lever 28 can separate from the contact 27 and the Shunt magnet 21 loses its power, so the plunger 19 falls down. As a result the upper carbon 13 is lifted and the arc is brought about, which now is obtained by the electromagnet 22 in a suitable size. Receives the arc is excessive, the plunger 20 is attracted by the electromagnet 22, so that the upper carbon sinks down. If the arc is extended excessively, the plunger 20 is raised so far that the feed armature 18 and thus the switch-off lever 28 in full contact with the current connector 27 is brought so that now the current through the shunt magnet 21 passes and the lamp is off.

The arc lamp illustrated in FIG. 5 acts like that shown in FIGS. 1 and 2. It but the embodiment of the former lamp is in this respect a simpler one than the two Electromagnets 21 and 22 are respectively arranged in one and the same axis. their windings are wound around the same bobbin.

Patent-A ν claim:

Switch-off device for arc lamps, characterized by one on the armature (26) of a switch-off magnet (25) contained in the electrode circuit Current release lever (28), which when the lamp is burning due to the attraction of the armature (26) and keeps the shunt open due to its own weight, on the other hand when the resistance is increased excessively in the electrode circuit by the attraction of the coal feed Armature (18) on the part of this armature associated electromagnet (22) 1.05 respectively an electromagnet (21) contained in the shunt against a StromschlussstUck (27) is pressed, whereby the shunt closed safely will.

1 sheet of drawings.