GB214540A - Improvements in electric incandescent lamps - Google Patents
Improvements in electric incandescent lampsInfo
- Publication number
- GB214540A GB214540A GB2270723A GB2270723A GB214540A GB 214540 A GB214540 A GB 214540A GB 2270723 A GB2270723 A GB 2270723A GB 2270723 A GB2270723 A GB 2270723A GB 214540 A GB214540 A GB 214540A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bridge
- filament
- supports
- refractory
- filaments
- 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
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/18—Mountings or supports for the incandescent body
Landscapes
- Resistance Heating (AREA)
Abstract
214,540. General Electric Co., Ltd., and Higgins, C. Sept. 10, 1923. Filaments; filaments, supports for.-In an incandescent lamp in which the filament consists of a number of parallel straight coils 2 in a common plane, for instance as used for projection purposes, the conducting supports 1 are joined above the filament by a refractory bridge 3 carrying the intermediate supports 4 and below the filament by one or more refractory bridges 5, 6 through which metal anchoring members 7 are freely guided so as to keep the filament sections taut with changes of temperature. The bridges may be of porcelain, magnesia or the like and the supports 4 may be made of refractory metal wires having one end passed through holes in the bridge prior to the formation of a few turns around the bridge. The lower ends of the anchors 7 may be flattened to prevent them from passing through the bridge 6 when the lamp is inverted. Specification 175,025 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2270723A GB214540A (en) | 1923-09-10 | 1923-09-10 | Improvements in electric incandescent lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2270723A GB214540A (en) | 1923-09-10 | 1923-09-10 | Improvements in electric incandescent lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB214540A true GB214540A (en) | 1924-04-24 |
Family
ID=10183794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2270723A Expired GB214540A (en) | 1923-09-10 | 1923-09-10 | Improvements in electric incandescent lamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB214540A (en) |
-
1923
- 1923-09-10 GB GB2270723A patent/GB214540A/en not_active Expired
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