GB241996A - Improvements relating to filaments for thermionic valves and for electron emitting devices - Google Patents
Improvements relating to filaments for thermionic valves and for electron emitting devicesInfo
- Publication number
- GB241996A GB241996A GB1841124A GB1841124A GB241996A GB 241996 A GB241996 A GB 241996A GB 1841124 A GB1841124 A GB 1841124A GB 1841124 A GB1841124 A GB 1841124A GB 241996 A GB241996 A GB 241996A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tungsten
- tube
- mixture
- molybdenum
- filaments
- 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
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 229910052750 molybdenum Inorganic materials 0.000 abstract 3
- 239000011733 molybdenum Substances 0.000 abstract 3
- 229910052721 tungsten Inorganic materials 0.000 abstract 3
- 239000010937 tungsten Substances 0.000 abstract 3
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 abstract 2
- 229910052776 Thorium Inorganic materials 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 abstract 2
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 abstract 2
- 229910052770 Uranium Inorganic materials 0.000 abstract 1
- 238000005530 etching Methods 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000013021 overheating Methods 0.000 abstract 1
- 239000003870 refractory metal Substances 0.000 abstract 1
- 235000010288 sodium nitrite Nutrition 0.000 abstract 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/14—Solid thermionic cathodes characterised by the material
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL17192D NL17192C (enExample) | 1924-08-01 | ||
| GB1841124A GB241996A (en) | 1924-08-01 | 1924-08-01 | Improvements relating to filaments for thermionic valves and for electron emitting devices |
| FR601241D FR601241A (fr) | 1924-08-01 | 1925-07-22 | Filaments pour tubes thermioniques et pour appareils à décharge électronique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1841124A GB241996A (en) | 1924-08-01 | 1924-08-01 | Improvements relating to filaments for thermionic valves and for electron emitting devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB241996A true GB241996A (en) | 1925-11-02 |
Family
ID=10111986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1841124A Expired GB241996A (en) | 1924-08-01 | 1924-08-01 | Improvements relating to filaments for thermionic valves and for electron emitting devices |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR601241A (enExample) |
| GB (1) | GB241996A (enExample) |
| NL (1) | NL17192C (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2400098B1 (es) * | 2011-02-28 | 2014-02-06 | Soler & Palau Research S.L. | Ventilador helicocentrifugo |
-
0
- NL NL17192D patent/NL17192C/xx active
-
1924
- 1924-08-01 GB GB1841124A patent/GB241996A/en not_active Expired
-
1925
- 1925-07-22 FR FR601241D patent/FR601241A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL17192C (enExample) | |
| FR601241A (fr) | 1926-02-25 |
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