GB121432A - Improvements in and relating to Multiple Filament Electric Incandescent Lamps. - Google Patents
Improvements in and relating to Multiple Filament Electric Incandescent Lamps.Info
- Publication number
- GB121432A GB121432A GB1020118A GB1020118A GB121432A GB 121432 A GB121432 A GB 121432A GB 1020118 A GB1020118 A GB 1020118A GB 1020118 A GB1020118 A GB 1020118A GB 121432 A GB121432 A GB 121432A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- relating
- incandescent lamps
- electric incandescent
- multiple 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
- H01K9/04—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies with built-in manually operated switch
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
121,432. British Thomson - Houston Co., (General Electric Co.). June 20, 1918. Caps; multiple-filament lamps.-A lamp with two filaments, adapted for use on motor-vehicles. has one filament 11 permanently connected to the two terminal contacts 20, 19 and the other filament 12 normally kept out of circuit by insulating-material such as paper 23 which can be removed at will from between a pair of stamped plates 22, 21 tending to spring into contact within a central recess of the cap. A bridge of solder 24 connects one spring plate 21 to the contact 20 to which is attached the wire from the outer end of the main filament; the other spring plate 22 is connected to the outer end of the spare filament 12.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1020118A GB121432A (en) | 1918-06-20 | 1918-06-20 | Improvements in and relating to Multiple Filament Electric Incandescent Lamps. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1020118A GB121432A (en) | 1918-06-20 | 1918-06-20 | Improvements in and relating to Multiple Filament Electric Incandescent Lamps. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB121432A true GB121432A (en) | 1918-12-19 |
Family
ID=32607902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1020118A Expired GB121432A (en) | 1918-06-20 | 1918-06-20 | Improvements in and relating to Multiple Filament Electric Incandescent Lamps. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB121432A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1561235A1 (en) * | 2002-11-11 | 2005-08-10 | CHON, Young-Ill | Apparatus and method for controlling headlight in vehicle and headlight lamp having multifunction structure |
-
1918
- 1918-06-20 GB GB1020118A patent/GB121432A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1561235A1 (en) * | 2002-11-11 | 2005-08-10 | CHON, Young-Ill | Apparatus and method for controlling headlight in vehicle and headlight lamp having multifunction structure |
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