GB2004048A - Standby battery lamp for use during mains failure - Google Patents
Standby battery lamp for use during mains failureInfo
- Publication number
- GB2004048A GB2004048A GB7838573A GB7838573A GB2004048A GB 2004048 A GB2004048 A GB 2004048A GB 7838573 A GB7838573 A GB 7838573A GB 7838573 A GB7838573 A GB 7838573A GB 2004048 A GB2004048 A GB 2004048A
- Authority
- GB
- United Kingdom
- Prior art keywords
- base
- housing
- supply
- use during
- electromagnet
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
- F21S9/022—Emergency lighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
- F21V23/026—Fastening of transformers or ballasts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
A light source arranged to be illuminated automatically upon failure of the normal electricity supply to a room, building or the like. The light source comprises a lamp housing 12 containing a bulb 18, batteries 30,32 and switch, and a base 14 on which the lamp housing can be mounted. One part 42 of an electromagnet including an energising winding 44 is mounted in the base and the other part 28 is mounted in the torch housing such that when the housing is mounted on the base and an a.c. supply is connected to the base the two parts of the electromagnet are mutually attracted and the housing is held securely on the base. If the a.c. supply is interrupted the electromagnet is de-energised, allowing the housing to be removed from the base and, at the same time, the switch is operated to connect the batteries to supply current to the bulb. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7838573A GB2004048B (en) | 1977-07-13 | 1978-09-28 | Light sources |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2952277 | 1977-07-13 | ||
GB7838573A GB2004048B (en) | 1977-07-13 | 1978-09-28 | Light sources |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2004048A true GB2004048A (en) | 1979-03-21 |
GB2004048B GB2004048B (en) | 1982-05-12 |
Family
ID=26259958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7838573A Expired GB2004048B (en) | 1977-07-13 | 1978-09-28 | Light sources |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2004048B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3118694A1 (en) * | 1981-05-12 | 1982-12-02 | CEAG Licht- und Stromversorgungstechnik GmbH, 6800 Mannheim | Portable hand lamp/travel lamp with a charging unit |
GB2215025A (en) * | 1988-02-06 | 1989-09-13 | Menvier | Emergency lighting unit |
DE4009777A1 (en) * | 1990-03-27 | 1991-10-02 | Johannes Spreng | Multi-use electrical lighting unit - has lamp that can be removed from stand for use as portable unit |
US5133192A (en) * | 1989-08-31 | 1992-07-28 | Rolls-Royce Plc | Fuel vaporizer |
WO2001084042A1 (en) * | 2000-05-02 | 2001-11-08 | Ferdinand Karel Steup | Rechargeable lamp assembly |
-
1978
- 1978-09-28 GB GB7838573A patent/GB2004048B/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3118694A1 (en) * | 1981-05-12 | 1982-12-02 | CEAG Licht- und Stromversorgungstechnik GmbH, 6800 Mannheim | Portable hand lamp/travel lamp with a charging unit |
GB2215025A (en) * | 1988-02-06 | 1989-09-13 | Menvier | Emergency lighting unit |
GB2215025B (en) * | 1988-02-06 | 1991-06-12 | Menvier | Emergency lighting unit |
US5133192A (en) * | 1989-08-31 | 1992-07-28 | Rolls-Royce Plc | Fuel vaporizer |
DE4009777A1 (en) * | 1990-03-27 | 1991-10-02 | Johannes Spreng | Multi-use electrical lighting unit - has lamp that can be removed from stand for use as portable unit |
WO2001084042A1 (en) * | 2000-05-02 | 2001-11-08 | Ferdinand Karel Steup | Rechargeable lamp assembly |
Also Published As
Publication number | Publication date |
---|---|
GB2004048B (en) | 1982-05-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |