GB491769A - Electric incandescent lamp - Google Patents
Electric incandescent lampInfo
- Publication number
- GB491769A GB491769A GB5402/38A GB540238A GB491769A GB 491769 A GB491769 A GB 491769A GB 5402/38 A GB5402/38 A GB 5402/38A GB 540238 A GB540238 A GB 540238A GB 491769 A GB491769 A GB 491769A
- Authority
- GB
- United Kingdom
- Prior art keywords
- incandescent lamp
- electric incandescent
- feb
- extension
- cap
- 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
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/04—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the light source
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
- H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
491,769. Two-part couplings. VEREINIGTE GLUHLAMPEN UND ELEKTRIZITATS AKT.-GES. Feb. 21, 1938, No. 5402. Convention date, Feb. 20, 1937. [Class 38 (i)] [Also in Group XI] In an electric incandescent lamp, intended particularly for air raid precaution purposes, the metal cap 6 has an extension which shrouds the bulb 1 and screens off the light rays, while, to provide safety in manipulation, a ring 11 of insulating-material is secured to the edge of the cap extension.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE491769X | 1937-02-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB491769A true GB491769A (en) | 1938-09-08 |
Family
ID=6544313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5402/38A Expired GB491769A (en) | 1937-02-20 | 1938-02-21 | Electric incandescent lamp |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB491769A (en) |
-
1938
- 1938-02-21 GB GB5402/38A patent/GB491769A/en not_active Expired
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