GB221851A - Improvements in or relating to vacuum electric tubes - Google Patents
Improvements in or relating to vacuum electric tubesInfo
- Publication number
- GB221851A GB221851A GB15309/23A GB1530923A GB221851A GB 221851 A GB221851 A GB 221851A GB 15309/23 A GB15309/23 A GB 15309/23A GB 1530923 A GB1530923 A GB 1530923A GB 221851 A GB221851 A GB 221851A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- heating
- platinum
- alkaline earth
- metals
- 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 6
- 238000010438 heat treatment Methods 0.000 abstract 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 4
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 229910045601 alloy Inorganic materials 0.000 abstract 3
- 239000000956 alloy Substances 0.000 abstract 3
- 229910052788 barium Inorganic materials 0.000 abstract 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 3
- 238000000151 deposition Methods 0.000 abstract 3
- 239000001257 hydrogen Substances 0.000 abstract 3
- 229910052739 hydrogen Inorganic materials 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- 150000002739 metals Chemical class 0.000 abstract 3
- 229910052697 platinum Inorganic materials 0.000 abstract 3
- 229910052712 strontium Inorganic materials 0.000 abstract 3
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 abstract 3
- 229910052721 tungsten Inorganic materials 0.000 abstract 3
- 239000010937 tungsten Substances 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 239000003792 electrolyte Substances 0.000 abstract 2
- 150000002431 hydrogen Chemical class 0.000 abstract 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract 2
- 239000011733 molybdenum Substances 0.000 abstract 2
- 230000003647 oxidation Effects 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000001110 calcium chloride Substances 0.000 abstract 1
- 229910001628 calcium chloride Inorganic materials 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 238000005868 electrolysis reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 150000004694 iodide salts Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 150000004767 nitrides Chemical class 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- HWLDNSXPUQTBOD-UHFFFAOYSA-N platinum-iridium alloy Chemical compound [Ir].[Pt] HWLDNSXPUQTBOD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- -1 potassium nitride Chemical class 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 1
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 1
- 235000011152 sodium sulphate Nutrition 0.000 abstract 1
- HHIQWSQEUZDONT-UHFFFAOYSA-N tungsten Chemical compound [W].[W].[W] HHIQWSQEUZDONT-UHFFFAOYSA-N 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL15308D NL15308C (enrdf_load_stackoverflow) | 1923-06-12 | ||
| GB15309/23A GB221851A (en) | 1923-06-12 | 1923-06-12 | Improvements in or relating to vacuum electric tubes |
| US715653A US1850809A (en) | 1923-06-12 | 1924-05-24 | Vacuum electric tube |
| DER61232D DE483948C (de) | 1923-06-12 | 1924-06-01 | Verfahren zur Herstellung von Oxydkathoden fuer Gluehkathodenroehren |
| FR582662D FR582662A (fr) | 1923-06-12 | 1924-06-11 | Perfectionnements aux tubes électriques à vide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB15309/23A GB221851A (en) | 1923-06-12 | 1923-06-12 | Improvements in or relating to vacuum electric tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB221851A true GB221851A (en) | 1924-09-12 |
Family
ID=10056785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15309/23A Expired GB221851A (en) | 1923-06-12 | 1923-06-12 | Improvements in or relating to vacuum electric tubes |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1850809A (enrdf_load_stackoverflow) |
| DE (1) | DE483948C (enrdf_load_stackoverflow) |
| FR (1) | FR582662A (enrdf_load_stackoverflow) |
| GB (1) | GB221851A (enrdf_load_stackoverflow) |
| NL (1) | NL15308C (enrdf_load_stackoverflow) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE968912C (de) * | 1931-09-15 | 1958-04-10 | Siegmund Loewe Dr | Verfahren zur Herstellung von Hochemissionskathoden fuer Entladungsgefaesse |
| NL48805C (enrdf_load_stackoverflow) * | 1936-09-01 | |||
| DE741396C (de) * | 1937-07-17 | 1943-11-10 | Sueddeutsche Telefon App Kabel | Verfahren zur Herstellung von isolierten gewendelten Heizdraehten fuer indirekt geheizte Kathoden |
| US2693431A (en) * | 1948-01-27 | 1954-11-02 | Eitcl Mccullough Inc | Method of making electron emitters |
| NL88370C (enrdf_load_stackoverflow) * | 1952-03-26 | |||
| US3265924A (en) * | 1962-06-29 | 1966-08-09 | York Res Corp | Thermionic tube having novel heater and cathode |
-
0
- NL NL15308D patent/NL15308C/xx active
-
1923
- 1923-06-12 GB GB15309/23A patent/GB221851A/en not_active Expired
-
1924
- 1924-05-24 US US715653A patent/US1850809A/en not_active Expired - Lifetime
- 1924-06-01 DE DER61232D patent/DE483948C/de not_active Expired
- 1924-06-11 FR FR582662D patent/FR582662A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL15308C (enrdf_load_stackoverflow) | 1900-01-01 |
| FR582662A (fr) | 1924-12-24 |
| US1850809A (en) | 1932-03-22 |
| DE483948C (de) | 1929-10-09 |
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