GB209531A - Improvements relating to contact spring sets such as are used in telephone systems - Google Patents
Improvements relating to contact spring sets such as are used in telephone systemsInfo
- Publication number
- GB209531A GB209531A GB2998822A GB2998822A GB209531A GB 209531 A GB209531 A GB 209531A GB 2998822 A GB2998822 A GB 2998822A GB 2998822 A GB2998822 A GB 2998822A GB 209531 A GB209531 A GB 209531A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spring
- tongue
- contact spring
- contact
- improvements relating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
- H01H13/64—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches
Landscapes
- Push-Button Switches (AREA)
Abstract
209,531. Siemens Bros. & Co., Ltd., and Goodwin, W. E. Nov. 2, 1922. Keyboard switches; relays.-Contact spring- sets of the make-before -break type are provided with a mechanical lost-motion device to ensure an interval between make and break. In the keycontrolled set shown in Fig. 2, spring 3 carries a pin 5 which passes through apertures in spring 2 and a tongue 10 and bears against spring 6. Upon throwing of the key, spring 2 engages the flexible tongue 10 which is attached to spring 6, and upon further movement tongue 10 comes against spring 6 and forces it away from pin 5. In the set shown in Fig. 6, upon lepression of the key the cam 29 first makes contact between springs 24, 26 and then breaks contact between springs 25, 27. Fig. 8 shows a set similar to that of Fig. 2, but controlled by a relay, the armature 33 of which is pivoted on a knife edge 34 of a yoke 35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2998822A GB209531A (en) | 1922-11-02 | 1922-11-02 | Improvements relating to contact spring sets such as are used in telephone systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2998822A GB209531A (en) | 1922-11-02 | 1922-11-02 | Improvements relating to contact spring sets such as are used in telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB209531A true GB209531A (en) | 1924-01-17 |
Family
ID=10300432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2998822A Expired GB209531A (en) | 1922-11-02 | 1922-11-02 | Improvements relating to contact spring sets such as are used in telephone systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB209531A (en) |
-
1922
- 1922-11-02 GB GB2998822A patent/GB209531A/en not_active Expired
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