GB698840A - Improvements in electric incandescent lamps and similar devices - Google Patents
Improvements in electric incandescent lamps and similar devicesInfo
- Publication number
- GB698840A GB698840A GB20506/51A GB2050651A GB698840A GB 698840 A GB698840 A GB 698840A GB 20506/51 A GB20506/51 A GB 20506/51A GB 2050651 A GB2050651 A GB 2050651A GB 698840 A GB698840 A GB 698840A
- Authority
- GB
- United Kingdom
- Prior art keywords
- barium
- similar devices
- incandescent lamps
- per cent
- electric incandescent
- 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
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
- H01J7/183—Composition or manufacture of getters
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Discharge Lamp (AREA)
Abstract
698,840. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 30, 1951 [Sept. 9, 1950], No. 20506/51. Drawings to Specification. Class 39(i) [Also in Group XI] The leading-in or support wires for the filament of an evacuated device such as a thermionic valve, or a discharge or incandescent lamp, are formed, at least in part, of a composition of nickel and barium, the latter providing a continuous gettering action throughout the life of the device. Practical considerations set an upper limit of 0.05 per cent as the amount of barium in a barium-nickel alloy, but this proportion may be increased to 1 per cent by the additional presence of copper or chromium.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US698840XA | 1950-09-09 | 1950-09-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB698840A true GB698840A (en) | 1953-10-21 |
Family
ID=22091796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20506/51A Expired GB698840A (en) | 1950-09-09 | 1951-08-30 | Improvements in electric incandescent lamps and similar devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB698840A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138202A (en) * | 1983-02-14 | 1984-10-17 | Gen Electric | Discharge lamp |
-
1951
- 1951-08-30 GB GB20506/51A patent/GB698840A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138202A (en) * | 1983-02-14 | 1984-10-17 | Gen Electric | Discharge lamp |
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