GB223306A - Improvements in thermionic valves and the like - Google Patents
Improvements in thermionic valves and the likeInfo
- Publication number
- GB223306A GB223306A GB1851223A GB1851223A GB223306A GB 223306 A GB223306 A GB 223306A GB 1851223 A GB1851223 A GB 1851223A GB 1851223 A GB1851223 A GB 1851223A GB 223306 A GB223306 A GB 223306A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- chromium
- thermionic valves
- alloy
- carbon
- 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
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0019—Chemical composition and manufacture
- H01J2893/002—Chemical composition and manufacture chemical
Landscapes
- Inert Electrodes (AREA)
Abstract
223,306. Osborn, H. J., and Turner, W. L. July 18, 1923. Alloys. - Electrodes are made of an alloy of iron with 10 to 15 per cent of chromium, and 0.1 to 0.5 per cent of carbon, the preferred proportions being 14 per cent of chromium and 0.15 per cent of carbon; the alloy does not occlude gas to any extent. According to the Provisional Specification the proportion of chromium may be 9 to 20 per cent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1851223A GB223306A (en) | 1923-07-18 | 1923-07-18 | Improvements in thermionic valves and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1851223A GB223306A (en) | 1923-07-18 | 1923-07-18 | Improvements in thermionic valves and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB223306A true GB223306A (en) | 1924-10-20 |
Family
ID=10113691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1851223A Expired GB223306A (en) | 1923-07-18 | 1923-07-18 | Improvements in thermionic valves and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB223306A (en) |
-
1923
- 1923-07-18 GB GB1851223A patent/GB223306A/en not_active Expired
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