GB240213A - Improvements in thermionic valves - Google Patents
Improvements in thermionic valvesInfo
- Publication number
- GB240213A GB240213A GB14926/24A GB1492624A GB240213A GB 240213 A GB240213 A GB 240213A GB 14926/24 A GB14926/24 A GB 14926/24A GB 1492624 A GB1492624 A GB 1492624A GB 240213 A GB240213 A GB 240213A
- Authority
- GB
- United Kingdom
- Prior art keywords
- uranium
- thorium
- coating
- filament
- platinum
- 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
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 7
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 abstract 5
- 229910052776 Thorium Inorganic materials 0.000 abstract 5
- 229910052770 Uranium Inorganic materials 0.000 abstract 5
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 abstract 5
- 239000011248 coating agent Substances 0.000 abstract 4
- 238000000576 coating method Methods 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 3
- 229910052697 platinum Inorganic materials 0.000 abstract 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 2
- 229910052721 tungsten Inorganic materials 0.000 abstract 2
- 239000010937 tungsten Substances 0.000 abstract 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- 230000001464 adherent effect Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000010426 asphalt Substances 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 abstract 1
- CMPGARWFYBADJI-UHFFFAOYSA-L tungstic acid Chemical compound O[W](O)(=O)=O CMPGARWFYBADJI-UHFFFAOYSA-L 0.000 abstract 1
- 238000010792 warming Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
- Y10T428/12063—Nonparticulate metal component
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Chemical Vapour Deposition (AREA)
- Powder Metallurgy (AREA)
- Physical Vapour Deposition (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL16070D NL16070C (enExample) | 1924-06-20 | ||
| GB14926/24A GB240213A (en) | 1924-06-20 | 1924-06-20 | Improvements in thermionic valves |
| FR598354D FR598354A (fr) | 1924-06-20 | 1925-05-18 | Perfectionnements aux valves thermioniques |
| US33049A US1608317A (en) | 1924-06-20 | 1925-05-26 | Thermionic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB14926/24A GB240213A (en) | 1924-06-20 | 1924-06-20 | Improvements in thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB240213A true GB240213A (en) | 1925-09-21 |
Family
ID=10049979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14926/24A Expired GB240213A (en) | 1924-06-20 | 1924-06-20 | Improvements in thermionic valves |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1608317A (enExample) |
| FR (1) | FR598354A (enExample) |
| GB (1) | GB240213A (enExample) |
| NL (1) | NL16070C (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2248635A (en) * | 1990-09-14 | 1992-04-15 | Nippon Kin Eki Co Ltd | Noble metal-containing overglaze color composition for ceramics containing also thorium resinate |
| CN111850524A (zh) * | 2020-07-17 | 2020-10-30 | 广东威特真空电子制造有限公司 | 稀土钨阴极及其制备方法和应用 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2433821A (en) * | 1945-05-23 | 1947-12-30 | Sylvania Electric Prod | Electron emissive cathode |
| US2497109A (en) * | 1946-02-04 | 1950-02-14 | Eitel Mccullough Inc | Electrode for electron tubes |
| US2647067A (en) * | 1949-09-10 | 1953-07-28 | Eitel Mccullough Inc | Electron emitter for electron tubes |
| US2788460A (en) * | 1951-05-23 | 1957-04-09 | Itt | Electrodes for electron discharge devices and methods of making same |
-
0
- NL NL16070D patent/NL16070C/xx active
-
1924
- 1924-06-20 GB GB14926/24A patent/GB240213A/en not_active Expired
-
1925
- 1925-05-18 FR FR598354D patent/FR598354A/fr not_active Expired
- 1925-05-26 US US33049A patent/US1608317A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2248635A (en) * | 1990-09-14 | 1992-04-15 | Nippon Kin Eki Co Ltd | Noble metal-containing overglaze color composition for ceramics containing also thorium resinate |
| GB2248635B (en) * | 1990-09-14 | 1994-06-22 | Nippon Kin Eki Co Ltd | Noble metal-containing overglaze color composition for ceramics |
| CN111850524A (zh) * | 2020-07-17 | 2020-10-30 | 广东威特真空电子制造有限公司 | 稀土钨阴极及其制备方法和应用 |
Also Published As
| Publication number | Publication date |
|---|---|
| US1608317A (en) | 1926-11-23 |
| FR598354A (fr) | 1925-12-15 |
| NL16070C (enExample) |
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