GB157585A - Incandescent electric lights - Google Patents
Incandescent electric lightsInfo
- Publication number
- GB157585A GB157585A GB2698019A GB2698019A GB157585A GB 157585 A GB157585 A GB 157585A GB 2698019 A GB2698019 A GB 2698019A GB 2698019 A GB2698019 A GB 2698019A GB 157585 A GB157585 A GB 157585A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflector
- lamp
- electric lights
- incandescent electric
- filament
- 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
- H01K1/26—Screens; Filters
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
157,585. Caughrean, M. C. Nov. 3, 1919. Vehicle and like lamps; search-lights; electric - lamp lanterns. - A bulb for use with an external parabolic reflector 1<1> comprises an internal reflector 4<1> supported from the lamp stem by arms 8 extending beyond the filament 3<1>, which is at the focus of a reflector 1<1>; in a modification the internal reflector is carried by extensions of the filament supports. The lamp and reflector may be enclosed in a cylindrical casing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US505970XA | 1917-05-12 | 1917-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB157585A true GB157585A (en) | 1921-01-27 |
Family
ID=10252211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2698019A Expired GB157585A (en) | 1917-05-12 | 1919-11-03 | Incandescent electric lights |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE343680C (en) |
FR (1) | FR505970A (en) |
GB (1) | GB157585A (en) |
-
1919
- 1919-11-03 GB GB2698019A patent/GB157585A/en not_active Expired
- 1919-11-12 FR FR505970D patent/FR505970A/en not_active Expired
- 1919-12-12 DE DE1919343680D patent/DE343680C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR505970A (en) | 1920-08-11 |
DE343680C (en) | 1921-11-07 |
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