AT68977B - Number switch for automatic telephone systems. - Google Patents
Number switch for automatic telephone systems.Info
- Publication number
- AT68977B AT68977B AT68977DA AT68977B AT 68977 B AT68977 B AT 68977B AT 68977D A AT68977D A AT 68977DA AT 68977 B AT68977 B AT 68977B
- Authority
- AT
- Austria
- Prior art keywords
- number switch
- pulse
- switch according
- contact
- during
- Prior art date
Links
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Keying Circuit Devices (AREA)
- Telephonic Communication Services (AREA)
Description
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wieder mitnimmt, bis sie sich gegen den Anschlag 13 legen, ohne dass während dieses Teiles der Zurückbewegung der Impulsscheibe irgend welche Stromstossgabe durch die Kontaktfedern M, M stattfindet. Erst wenn die Hebel ihre Ruhelage eingenommen haben, werden die Kontakt-
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einandergedrückt und freigegeben und dadurch der Kontakt unterbrochen und'geschlossen.
Der durch. den Weg der Hebel 8, 9 bezeichnete tote Gang der Nummernscheibe ist derartig bemessen, dass während dessen mit Sicherheit die Einstellung der vorwählenden Schaltwerke erfolgt.
Die Zähne des Impulsrades 3 sind bei der dargestellten Ausführungsform über dessen Gesamtumfang ausgedehnt. Es wird durch diese Gleichartigkeit des Radumfanges die Einpassung des Impulsrades in beliebiger Winkelstellung ermöglicht und damit der Zusammenbau und die Justierung des Nummernschalters erleichtert.
An Stelle der Aussetzung des Kontaktantriebes während der toten Gänge des Nummernschalters könnte man die Einrichtung auch derart, treffen, dass die Kontaktgabe ungehindert stattfindet und während der toten Wege, beispielsweise durch die Schlepphebel, eine Unterbrechung oder Überbrückung des Kontaktstromkreises bewirkt wird.
PATENT-ANSPRÜCHE :
1. Nummernschalter für selbsttätige Fernsprechanlagen, gekennzeichnet durch eine derartige Ausbildung der Einstellvorrichtung, dass vor den der Einstellung und Wahl der gewünschten Teilnehmernummer entsprechenden Bewegungen der Einstellteile sowohl beim Aufzug, als auch bei deren Ablauf ein toter Weg liegt, währenddessen die Stromstosssendung ruht.
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takes it along again until they come to rest against the stop 13 without any current impulse being given by the contact springs M, M during this part of the return movement of the pulse disk. Only when the levers are in their rest position will the contact
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pressed together and released, thereby interrupting contact and closing.
The through. the path of the levers 8, 9 designated dead gear of the dial is dimensioned such that during this the setting of the preselecting switching mechanisms takes place with certainty.
In the embodiment shown, the teeth of the pulse wheel 3 are extended over its entire circumference. This similarity of the wheel circumference enables the impulse wheel to be fitted in any angular position and thus facilitates the assembly and adjustment of the number switch.
Instead of suspending the contact drive during the dead gears of the number switch, the device could also be made in such a way that the contact is made unhindered and the contact circuit is interrupted or bridged during the dead paths, for example by the rocker arm.
PATENT CLAIMS:
1. Number switch for automatic telephone systems, characterized by such a design of the setting device that before the setting and selection of the desired subscriber number corresponding movements of the setting parts both in the elevator, as well as in the course of which there is a dead path, while the power surge transmission is at rest.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE68977X | 1913-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT68977B true AT68977B (en) | 1915-06-10 |
Family
ID=5634697
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT68977D AT68977B (en) | 1913-02-01 | 1914-01-27 | Number switch for automatic telephone systems. |
AT74260D AT74260B (en) | 1913-02-01 | 1916-01-29 | Number switch for automatic telephone systems. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT74260D AT74260B (en) | 1913-02-01 | 1916-01-29 | Number switch for automatic telephone systems. |
Country Status (1)
Country | Link |
---|---|
AT (2) | AT68977B (en) |
-
1914
- 1914-01-27 AT AT68977D patent/AT68977B/en active
-
1916
- 1916-01-29 AT AT74260D patent/AT74260B/en active
Also Published As
Publication number | Publication date |
---|---|
AT74260B (en) | 1918-03-26 |
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