GB532637A - Improvements relating to electric switches actuated by doors - Google Patents
Improvements relating to electric switches actuated by doorsInfo
- Publication number
- GB532637A GB532637A GB2600339A GB2600339A GB532637A GB 532637 A GB532637 A GB 532637A GB 2600339 A GB2600339 A GB 2600339A GB 2600339 A GB2600339 A GB 2600339A GB 532637 A GB532637 A GB 532637A
- Authority
- GB
- United Kingdom
- Prior art keywords
- door
- strip
- contacts
- doors
- strips
- 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
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
- H01H3/161—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Push-Button Switches (AREA)
Abstract
532,637. Retractive switches. FLORY, H. E. Sept. 16, 1939, No. 26003. [Class 38 (v)] A door-operated switch, suitable for black-out conditions, comprises a body a secured directly or, as shown, by parallel metal or other strips b, to the door-frame and operated by a thin metal or other strip g having a turned-up end o against which the door bears. A blade spring n bearing against the end o and against similar ends p of strips b, restores the strip g when the door is opened. The strip g carries an insulating-plate k carrying a contact j adapted to bridge contacts h on the body when the door is closed. A further pair of contacts i may be bridged in the open position of the door and may operate a pilot lamp or bell. Other dispositions of contacts are, however, referred to. The Provisional Specification refers also to a helical spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2600339A GB532637A (en) | 1939-09-16 | 1939-09-16 | Improvements relating to electric switches actuated by doors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2600339A GB532637A (en) | 1939-09-16 | 1939-09-16 | Improvements relating to electric switches actuated by doors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB532637A true GB532637A (en) | 1941-01-28 |
Family
ID=10236807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2600339A Expired GB532637A (en) | 1939-09-16 | 1939-09-16 | Improvements relating to electric switches actuated by doors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB532637A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2866980A1 (en) * | 2004-02-27 | 2005-09-02 | Dominique Prudhomme | Electric safety device for e.g. garage door lock, has circuit breaker with shunt composed of metal plate, and electrical contacts that are retracted or moved when door is in open and closed positions, respectively |
-
1939
- 1939-09-16 GB GB2600339A patent/GB532637A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2866980A1 (en) * | 2004-02-27 | 2005-09-02 | Dominique Prudhomme | Electric safety device for e.g. garage door lock, has circuit breaker with shunt composed of metal plate, and electrical contacts that are retracted or moved when door is in open and closed positions, respectively |
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