AT76669B - Selector for making connections in telephone systems. - Google Patents
Selector for making connections in telephone systems.Info
- Publication number
- AT76669B AT76669B AT76669DA AT76669B AT 76669 B AT76669 B AT 76669B AT 76669D A AT76669D A AT 76669DA AT 76669 B AT76669 B AT 76669B
- Authority
- AT
- Austria
- Prior art keywords
- selector
- telephone systems
- making connections
- test
- locking member
- Prior art date
Links
Landscapes
- Structure Of Telephone Exchanges (AREA)
Description
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Wähler zur Herstellung von Verbindungen In Fernsprechanlagen.
Im Stammpatente Nr. 68536 ist ein Wähler beschrieben, bei welchem ein mechanisch betriebenes Einstellorgan auf dem Kontakt einer gewünschten Leitung mitl) ilfe einer besondern Sperrvorrichtung festgestellt wird. Diese Sperrung steht unter dem Einfluss eines Prüfelektromagneten, dem lediglich die Aufgabe zufällt, das Sperrglied in der Sperrlage, in welche es auf mechanischem Wege gebracht wird, festzuhalten.
Die durch diese Anordnung ermöglichte grössere Einstellgeschwindigkeit des Wählers
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artige Schwingungen versetzte Sperrglied nicht nur an einem Umkehrpunkt, sondern an beiden Umkehrpunkten seiner Bewegung von einem Prüfelektromagneten magnetisch beeinflusst werden kann. Es ermöglicht dies, unter sonst gleichbleibenden Umstanden innerhalb eines gegebenen
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Zweckmässig werden hiebei die an beiden Umkehrpunkten des Sperrgliedes vorgesehenen Prüfmagnete vormagnetisiert. z. B. durch Anwendung permanenter Magnete oder dadurch. dass der Prüfarm dem Sperrad mit Bezug auf die Kontakte um ein geringes voreilt, so dass er schon in Berührung mit einem fieien Kontakt kommt, ehe noch das Sperrglied in das Sperrad einschnappt. Der vormagnetisierte Prüfelektromagnet kann das Sperrglied dann mit voler K mft festhalten, sohald e8 in seine Sperrstellung gelangt.
Beim Auftrefen auf eine freie Leitung werden zweckmässig die beiden Prüfelektromagnete geleichzeitig magnetisiert, was eine sehr einfache Schaltung zur Folge hat.
Die Zähne des mit dem Sperrglied zusammenarbeitenden Sperrades werden zweckmässig
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Selector for making connections in telephone systems.
In the parent patent no. 68536 a selector is described in which a mechanically operated setting element is determined on the contact of a desired line with the aid of a special locking device. This blocking is under the influence of a test electromagnet, which only has the task of holding the blocking element in the blocking position into which it is mechanically brought.
The greater setting speed of the selector made possible by this arrangement
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Like vibrations offset locking member can be magnetically influenced by a test electromagnet not only at a reversal point, but at both reversal points of its movement. It enables this, all other things being equal, within a given
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The test magnets provided at both reversal points of the blocking element are expediently premagnetized. z. B. by using permanent magnets or thereby. that the test arm leads the ratchet wheel by a small amount with respect to the contacts, so that it already comes into contact with a free contact before the locking member snaps into the ratchet wheel. The pre-magnetized test electromagnet can then hold the locking member with full K mft so that e8 reaches its locking position.
When encountering a free line, the two test electromagnets are expediently magnetized at the same time, which results in a very simple circuit.
The teeth of the ratchet wheel cooperating with the locking member become useful
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Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE68536X | 1912-10-17 | ||
DE76669X | 1915-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT76669B true AT76669B (en) | 1919-06-10 |
Family
ID=25749464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT76669D AT76669B (en) | 1912-10-17 | 1916-04-15 | Selector for making connections in telephone systems. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT76669B (en) |
-
1916
- 1916-04-15 AT AT76669D patent/AT76669B/en active
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