GB442939A - Improvements in multiple-filament motor car lamps - Google Patents
Improvements in multiple-filament motor car lampsInfo
- Publication number
- GB442939A GB442939A GB2082734A GB2082734A GB442939A GB 442939 A GB442939 A GB 442939A GB 2082734 A GB2082734 A GB 2082734A GB 2082734 A GB2082734 A GB 2082734A GB 442939 A GB442939 A GB 442939A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- lamp
- screen
- motor car
- 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
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
442,939. Electric incandescent lamps with internal screens. DICKER, S. G. S., 20, Holborn, London.-(Naamlooze Vennootschap Splendor Gloeilampenfabriek ; Nymegen, Holland) July 16, 1934, No. 20827. [Class 39 (ii)] An electric incandescent lamp adapted more particularly for a motor car headlight is provided with two filaments 1, 2 which are located in planes normal to each other, the filament 2 being in a plane normal to the axis of the lamp and partly surrounded by a screen 4 mounted within the lamp. Both filaments are preferably V-shaped, the apex of filament 2 being connected to the screen. The main filament 1 may be arranged so that it is within the horizontal plane passing through the focus of a reflector co-operating with the lamp or; as shown, may be located below such plane. The filament 2 is preferably located behind the centre when a spherical bulb is used. The screen is preferably shovel-shaped, with walls which intercept rays directed forwardly and upwardly from the filament 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2082734A GB442939A (en) | 1934-07-16 | 1934-07-16 | Improvements in multiple-filament motor car lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2082734A GB442939A (en) | 1934-07-16 | 1934-07-16 | Improvements in multiple-filament motor car lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB442939A true GB442939A (en) | 1936-02-17 |
Family
ID=10152379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2082734A Expired GB442939A (en) | 1934-07-16 | 1934-07-16 | Improvements in multiple-filament motor car lamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB442939A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1223948B (en) * | 1954-12-08 | 1966-09-01 | Gen Electric | Vehicle twin-filament bulb headlights |
-
1934
- 1934-07-16 GB GB2082734A patent/GB442939A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1223948B (en) * | 1954-12-08 | 1966-09-01 | Gen Electric | Vehicle twin-filament bulb headlights |
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