GB480511A - Improvements in and relating to electric incandescent lamps - Google Patents
Improvements in and relating to electric incandescent lampsInfo
- Publication number
- GB480511A GB480511A GB21045/37A GB2104537A GB480511A GB 480511 A GB480511 A GB 480511A GB 21045/37 A GB21045/37 A GB 21045/37A GB 2104537 A GB2104537 A GB 2104537A GB 480511 A GB480511 A GB 480511A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- leads
- wires
- plane
- july
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
- H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
480,511. Electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd. July 29, 1937, No. 21045. Convention date, July 29, 1936. [Class 39 (ii)] In order to prevent blackening of the bulb 10 of a lamp provided with a filament 15 located between leading - in wires 14 and arranged substantially in the plane of the wires, a flat screen 21 is mounted above the filament in a plane closely adjacent, and substantially parallel, to the plane passing through the leads 14 so as to lie in the path of particles which are vaporized from the filament and deposited thereon. In the example, a pair of screens 21 are provided, each supported by and preferably electrically connected to one of the leads 14, and extending to a position adjacent to the opposite lead. The screens may be made of nickel and spot welded to the leads 14 by narrow strips of metal 22 placed over the ends thereof. The filament 15 is of the monoplane type supported by intermediate wires 16, 17 mounted on insulating bridges 18, 19 which are connected to the leads 14 by wire members 20. Specifications 7682/14, [Class 39 (ii)], and 471,301, [Group XXXVI], are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US93236A US2100879A (en) | 1936-07-29 | 1936-07-29 | Electric lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB480511A true GB480511A (en) | 1938-02-23 |
Family
ID=22237867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21045/37A Expired GB480511A (en) | 1936-07-29 | 1937-07-29 | Improvements in and relating to electric incandescent lamps |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2100879A (en) |
| FR (1) | FR824594A (en) |
| GB (1) | GB480511A (en) |
| NL (1) | NL47365C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2922510A (en) * | 1956-05-18 | 1960-01-26 | Kolman Mfg Company | Screening plant |
| NL6607700A (en) * | 1966-06-03 | 1967-12-04 | ||
| NL6607701A (en) * | 1966-06-03 | 1967-12-04 | ||
| US3555338A (en) * | 1967-03-10 | 1971-01-12 | Sylvania Electric Prod | Incandescent lamp |
-
0
- NL NL47365D patent/NL47365C/xx active
-
1936
- 1936-07-29 US US93236A patent/US2100879A/en not_active Expired - Lifetime
-
1937
- 1937-07-21 FR FR824594D patent/FR824594A/en not_active Expired
- 1937-07-29 GB GB21045/37A patent/GB480511A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR824594A (en) | 1938-02-11 |
| NL47365C (en) | |
| US2100879A (en) | 1937-11-30 |
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