GB360339A - Improvements in or relating to electric lamps - Google Patents
Improvements in or relating to electric lampsInfo
- Publication number
- GB360339A GB360339A GB11064/31A GB1106431A GB360339A GB 360339 A GB360339 A GB 360339A GB 11064/31 A GB11064/31 A GB 11064/31A GB 1106431 A GB1106431 A GB 1106431A GB 360339 A GB360339 A GB 360339A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubes
- electric
- vapour
- gas
- bulbs
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
360,339. Electric ceiling lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. fur Elektrische Gliihlampen ; 11, Ehrenbergstrasse, Berlin.) April 14, 1931, No. 11064. Convention date, May 16, 1930. [Class 75 (iv).] An electric lamp for operating on ordinary line voltages comprises a ceiling box having a frosted glass or like translucent lower part 2 containing one or more incandescent lamp bulbs 3 and a metal or like opaque upper part 1 containing the heating, starting and regulating apparatus for one or more luminous discharge tubes 4 provided with hot electrodes. As shown'in Fig. 3, the electrode containers also may be accommodated within the opaque part 1. The tubes 4 may contain a gas such as neon, helium, argon, nitrogen or carbonic acid, a vapour such as sodium, mercury or cadmium (the latter two for daylight effects), or a mixture of gas and vapour. The bulbs 3 and the part 2 may be coloured or, together with the tubes 4, made of glass that is transparent to ultra-violet rays..
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE360339X | 1930-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB360339A true GB360339A (en) | 1931-11-05 |
Family
ID=6293337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11064/31A Expired GB360339A (en) | 1930-05-16 | 1931-04-14 | Improvements in or relating to electric lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB360339A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2907544A (en) * | 1955-01-28 | 1959-10-06 | Mc Graw Edison Co | Fluorescent luminaire and mounting arrangement therefor |
| US3201565A (en) * | 1962-01-03 | 1965-08-17 | King Seeleyt Thermos Co | Oven heating system |
-
1931
- 1931-04-14 GB GB11064/31A patent/GB360339A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2907544A (en) * | 1955-01-28 | 1959-10-06 | Mc Graw Edison Co | Fluorescent luminaire and mounting arrangement therefor |
| US3201565A (en) * | 1962-01-03 | 1965-08-17 | King Seeleyt Thermos Co | Oven heating system |
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