GB209730A - Improved manufacture of cathodes for electric discharge tubes - Google Patents
Improved manufacture of cathodes for electric discharge tubesInfo
- Publication number
- GB209730A GB209730A GB37/24A GB3724A GB209730A GB 209730 A GB209730 A GB 209730A GB 37/24 A GB37/24 A GB 37/24A GB 3724 A GB3724 A GB 3724A GB 209730 A GB209730 A GB 209730A
- Authority
- GB
- United Kingdom
- Prior art keywords
- base
- platinum
- alkaline earth
- barium
- copper
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 6
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 6
- 239000000956 alloy Substances 0.000 abstract 6
- 229910045601 alloy Inorganic materials 0.000 abstract 6
- 229910052697 platinum Inorganic materials 0.000 abstract 6
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 4
- 229910052802 copper Inorganic materials 0.000 abstract 4
- 239000010949 copper Substances 0.000 abstract 4
- 229910052751 metal Inorganic materials 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 4
- 229910052786 argon Inorganic materials 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
- 239000007789 gas Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract 2
- 238000005275 alloying Methods 0.000 abstract 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 2
- 229910052753 mercury Inorganic materials 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- 230000001590 oxidative effect Effects 0.000 abstract 2
- UUXFWHMUNNXFHD-UHFFFAOYSA-N barium azide Chemical compound [Ba+2].[N-]=[N+]=[N-].[N-]=[N+]=[N-] UUXFWHMUNNXFHD-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000010891 electric arc Methods 0.000 abstract 1
- 238000005868 electrolysis reaction Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 229910052754 neon Inorganic materials 0.000 abstract 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 229910052763 palladium Inorganic materials 0.000 abstract 1
- 239000012629 purifying agent Substances 0.000 abstract 1
- 230000011664 signaling Effects 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)
- Other Surface Treatments For Metallic Materials (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL209730X | 1923-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB209730A true GB209730A (en) | 1924-08-14 |
Family
ID=19778764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37/24A Expired GB209730A (en) | 1923-01-12 | 1924-01-01 | Improved manufacture of cathodes for electric discharge tubes |
Country Status (4)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2525262A (en) * | 1948-02-18 | 1950-10-10 | Cooper Hewitt Electric Co | Method of producing highly emissive electrodes |
| US2507696A (en) * | 1948-03-27 | 1950-05-16 | Bell Telephone Labor Inc | Glow discharge device |
| US2525263A (en) * | 1950-08-25 | 1950-10-10 | Michel E Macksoud | Method of producing highly emissive electrodes |
| NL96177C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1952-02-27 | |||
| US2908593A (en) * | 1952-04-17 | 1959-10-13 | Edward S Naidus | Electrical capacitors |
| US2757309A (en) * | 1953-09-24 | 1956-07-31 | Gera Corp | Emissive cathode |
| GB2192751B (en) * | 1986-07-14 | 1991-02-13 | Denki Kagaku Kogyo Kk | Method of making a thermionic cathode structure. |
-
0
- NL NL15389D patent/NL15389C/xx active
-
1923
- 1923-12-14 FR FR578694D patent/FR578694A/fr not_active Expired
- 1923-12-31 US US683729A patent/US1735080A/en not_active Expired - Lifetime
-
1924
- 1924-01-01 GB GB37/24A patent/GB209730A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1735080A (en) | 1929-11-12 |
| FR578694A (fr) | 1924-10-02 |
| NL15389C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
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