AT92063B - Electrically operated signal instrument. - Google Patents
Electrically operated signal instrument.Info
- Publication number
- AT92063B AT92063B AT92063DA AT92063B AT 92063 B AT92063 B AT 92063B AT 92063D A AT92063D A AT 92063DA AT 92063 B AT92063 B AT 92063B
- Authority
- AT
- Austria
- Prior art keywords
- electrically operated
- signal instrument
- operated signal
- resistor
- choke coil
- Prior art date
Links
Landscapes
- Reciprocating Pumps (AREA)
Description
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Elektlisch betriebenes Signalinstrlmlent.
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eine, 6, die Einschaltung des ungeschwächten Stromes bewirkt, während die andere, 7, den Stromkreis mit-Widerstand 8 schliesst.
Der Widerstand 8 besteht erfindungsgemäss aus einer Drosselspule, die die oben beschriebene Eigenschaft hat, dass sie im Augenblick des Schliessens des Schalters 7 den Strom der Stromquelle 5 ungeschwächt zu dem Magneten 3 treten lässt, wodurch dieser seinen Anker 2 mit voller Kraft einzieht. Da aber sofort die Unterbrecherkontakte 4 geöffnet werden und von nun an periodisch unterbrochener
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strom ab, so dass das Signal nur gedämpft ertönt.
Die Erfindung lässt sich auch bei solchen Signalinstrumenten verwenden, bei denen die tonerzeugende Membran oder Platte nicht unmittelbar von dem Elektromagneten angetrieben wird, sondern beispielsweise durch Vermittlung einer als Membranpumpe ausgebildeten Luftpumpe, die von dem Elektromagneten in Tätigkeit gesetzt wird.
Es ist ferner gleichgültig, in welcher Weise die Einschaltung der Drosselspule geschieht. Anstatt zweier paralleler Stromkreise, wie bei dem gezeichneten Ausführungsbeispiel, kann man auch nur einen einzigen Stromkreis vorsehen, in dem die Drosselspule nach Belieben ein-und ausgeschaltet werden kann. Die Schaltung kann von Hand oder selbsttätig, z. B. in Abhängigkeit von der Geschwindigkeit des Fahrzeuges, der Drehzahl des Antriebsmotors usw., erfolgen.
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Electrically operated signal instrument.
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one, 6, causes the non-weakened current to be switched on, while the other, 7, closes the circuit with resistor 8.
According to the invention, the resistor 8 consists of a choke coil which has the property described above that at the moment the switch 7 closes, the current from the current source 5 passes to the magnet 3 without being weakened, whereby the latter pulls in its armature 2 with full force. But since the breaker contacts 4 are opened immediately and from now on periodically interrupted
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current, so that the signal is only muted.
The invention can also be used in signal instruments in which the sound-generating membrane or plate is not driven directly by the electromagnet, but, for example, by means of an air pump designed as a membrane pump, which is activated by the electromagnet.
It is also immaterial in which way the switching on of the choke coil is done. Instead of two parallel circuits, as in the illustrated embodiment, only a single circuit can be provided in which the choke coil can be switched on and off at will. The circuit can be done manually or automatically, e.g. B. depending on the speed of the vehicle, the speed of the drive motor, etc., take place.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE92063X | 1921-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT92063B true AT92063B (en) | 1923-04-10 |
Family
ID=5643993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT92063D AT92063B (en) | 1921-10-17 | 1922-02-14 | Electrically operated signal instrument. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT92063B (en) |
-
1922
- 1922-02-14 AT AT92063D patent/AT92063B/en active
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