GB459396A - Improvements in multiple filament incandescent electric lamps - Google Patents
Improvements in multiple filament incandescent electric lampsInfo
- Publication number
- GB459396A GB459396A GB29339/35A GB2933935A GB459396A GB 459396 A GB459396 A GB 459396A GB 29339/35 A GB29339/35 A GB 29339/35A GB 2933935 A GB2933935 A GB 2933935A GB 459396 A GB459396 A GB 459396A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- contacts
- common
- oct
- 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
- 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
- Connecting Device With Holders (AREA)
Abstract
459,396. Two-part couplings. HOESSLE, A., 98, Roteb³hlstrasse, Stuttgart, Germany. Oct. 24, 1935, No. 29339. Convention date, Oct. 26, 1934. [Class 38 (i)] The cap of a multiple filament miniature electric lamp is provided on its end face with separate fixed contacts connected to the respective filaments the contacts being of different heights and disposed adjacent to one another so that they are all adapted in turn for engagement with a common counter - contact, the height of the highest contact being reduced by the removal of a part or the whole of its material to enable the next contact to be brought into use. In the example the leading-in wires of two filaments b, c are connected to two contacts i, h, with a common leading-in wire d connected to the screw-threaded metal shell e. The higher contact h is the first to make contact with the common centre contact when the bulb is screwed into its socket. The contact or contacts not in use may be provided with a removable coating of insulating material. The contacts consist of soldering tin or other soft metal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE459396X | 1934-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB459396A true GB459396A (en) | 1937-01-07 |
Family
ID=6539579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29339/35A Expired GB459396A (en) | 1934-10-26 | 1935-10-24 | Improvements in multiple filament incandescent electric lamps |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR796602A (en) |
| GB (1) | GB459396A (en) |
-
1935
- 1935-10-23 FR FR796602D patent/FR796602A/en not_active Expired
- 1935-10-24 GB GB29339/35A patent/GB459396A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR796602A (en) | 1936-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB461483A (en) | Improvements in and relating to electric lamps | |
| GB459396A (en) | Improvements in multiple filament incandescent electric lamps | |
| US2692154A (en) | Electric lamp base construction | |
| GB507549A (en) | Improvements in lamp sockets and in caps adapted to cooperate therewith | |
| US1449627A (en) | Electric incandescent lamp | |
| GB472356A (en) | Improvements in or relating to electric incandescent lamps | |
| GB525419A (en) | Improvements in or relating to tubular electric incandescent lamps or discharge tubes | |
| US2008594A (en) | Electric incandescent lamp | |
| GB452121A (en) | Improvements in incandescent electric lamps | |
| GB452191A (en) | Improvements in and relating to electric lamps | |
| GB261358A (en) | Improvements relating to incandescent electric lamps | |
| GB499682A (en) | Improvements in methods of capping vitreous vessels, such as electric incandescent lamps, without the use of cement | |
| SU12050A1 (en) | Electric incandescent lamp with two filaments, switched on one by one | |
| GB206773A (en) | Improvements in or relating to electric incandescent lamps | |
| GB503462A (en) | Cap for electric incandescent lamps | |
| GB272653A (en) | Improvements in or relating to incandescent electric lamp holders | |
| GB922130A (en) | Improvements relating to caps for electric incandescent lamps | |
| GB433274A (en) | Improvements in metal caps for electric incandescent lamps, electric discharge devices and the like | |
| GB379090A (en) | Improvements in or relating to thermionic valve holders | |
| GB398693A (en) | Improvements in electric incandescent lamps | |
| GB315638A (en) | Improvements in multiple-filament electric incandescent lamps | |
| GB261020A (en) | Improvements in and relating to multiple filament electric lamps | |
| GB198375A (en) | Improvements in electric incandescent lamps | |
| GB529978A (en) | Improvements in and relating to electric lampholders and like electrical connections | |
| GB1233592A (en) |