AT39745B - Safety circuit for electrical monitoring devices of railways or the like. - Google Patents
Safety circuit for electrical monitoring devices of railways or the like.Info
- Publication number
- AT39745B AT39745B AT39745DA AT39745B AT 39745 B AT39745 B AT 39745B AT 39745D A AT39745D A AT 39745DA AT 39745 B AT39745 B AT 39745B
- Authority
- AT
- Austria
- Prior art keywords
- safety circuit
- railways
- monitoring devices
- electrical monitoring
- moved
- Prior art date
Links
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Locating Faults (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Description
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Sicherheitsschaltung für elektrische Überwachungseinrichtungen von Eisenbahnwelchen oder dgl.
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Eine noch grössere Sicherheit gewährt eine Anordnung, bei der die Fläche der Erdunga- kontakte unter Druck aufeinander reiben müssen, um den Schluss der Überwachungskontakte und damit auch denÜberwachungaatrom zustande zu bringen. Sie gibt die unbedingte Gewissheit, dass
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zweiarmigen Hebel 33 befestigt, den eine Mittelstellvorrichtung 35 in die wagerechte Mittellage zurückzuziehen sucht. Dieser Hebel ist durch den Kontakthebel 22 unter Überwindung der Rückstellkraft in eine schräge Lage gedreht, in der die Feder 13 den Überwachungsstrom schliesst, indem sie gegen das Kontaktstück 15 gedrückt und in dieser Lage festgehalten wird.
Es ist also die Reibung der den Erdschluss herstellenden Flächen von 22 und 14 und ihr dauernder Druck
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stromkreis geschlossen ist.
Die beschriebenen Einrichtungen sind natürlich nicht nur für elektrische Stellwerke, sondern überall dort anzuwenden, wo die Erdung einer Leitung oder überhaupt ein Kontaktschluss überwacht werden muss, dessen Fehlen sich im gewöhnlichen Betriebe nicht bemerkbar macht.
PATENT-ANSPRÜCHE :
1. Sicherheitsschaltung für elektrische Überwachungseinrichtungen nach Patent Nr. 28340, bei der die zu überwachende Vorrichtung durch Erdung betriebsunfähig gemacht wird, dadurch gekennzeichnet, dass durch die von dieser Vorrichtung bewegten Schalter zugleich die Erdkontakte überprüft werden.
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Safety circuit for electrical monitoring devices of railways or the like.
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An arrangement in which the surface of the grounding contacts must rub against one another under pressure in order to bring about the closure of the monitoring contacts and thus also the monitoring of the circuit provides even greater security. It gives you the absolute certainty that
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two-armed lever 33 attached, which seeks to retract a center adjusting device 35 into the horizontal central position. This lever is rotated by the contact lever 22, overcoming the restoring force, into an inclined position in which the spring 13 closes the monitoring current by being pressed against the contact piece 15 and held in this position.
So it is the friction of the earth faulting surfaces of 22 and 14 and their constant pressure
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circuit is closed.
The devices described are of course not only applicable for electrical interlockings, but wherever the earthing of a line or a contact closure at all has to be monitored, the absence of which is not noticeable in normal operations.
PATENT CLAIMS:
1. Safety circuit for electrical monitoring devices according to Patent No. 28340, in which the device to be monitored is rendered inoperable by grounding, characterized in that the earth contacts are checked at the same time by the switches moved by this device.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT39745D AT39745B (en) | 1906-05-18 | 1908-07-07 | Safety circuit for electrical monitoring devices of railways or the like. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT28340T | 1906-05-18 | ||
AT39745D AT39745B (en) | 1906-05-18 | 1908-07-07 | Safety circuit for electrical monitoring devices of railways or the like. |
Publications (1)
Publication Number | Publication Date |
---|---|
AT39745B true AT39745B (en) | 1909-11-25 |
Family
ID=25599145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT39745D AT39745B (en) | 1906-05-18 | 1908-07-07 | Safety circuit for electrical monitoring devices of railways or the like. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT39745B (en) |
-
1908
- 1908-07-07 AT AT39745D patent/AT39745B/en active
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