GB725450A - Improvements in or relating to methods of making electric discharge tubes - Google Patents
Improvements in or relating to methods of making electric discharge tubesInfo
- Publication number
- GB725450A GB725450A GB7760/53A GB776053A GB725450A GB 725450 A GB725450 A GB 725450A GB 7760/53 A GB7760/53 A GB 7760/53A GB 776053 A GB776053 A GB 776053A GB 725450 A GB725450 A GB 725450A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- barium zirconate
- nitrocellulose
- march
- mol
- 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
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 3
- 229910021523 barium zirconate Inorganic materials 0.000 abstract 3
- DQBAOWPVHRWLJC-UHFFFAOYSA-N barium(2+);dioxido(oxo)zirconium Chemical compound [Ba+2].[O-][Zr]([O-])=O DQBAOWPVHRWLJC-UHFFFAOYSA-N 0.000 abstract 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 abstract 2
- 239000000020 Nitrocellulose Substances 0.000 abstract 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 abstract 2
- 229920001220 nitrocellulos Polymers 0.000 abstract 2
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 abstract 1
- WOIHABYNKOEWFG-UHFFFAOYSA-N [Sr].[Ba] Chemical compound [Sr].[Ba] WOIHABYNKOEWFG-UHFFFAOYSA-N 0.000 abstract 1
- VBIXEXWLHSRNKB-UHFFFAOYSA-N ammonium oxalate Chemical compound [NH4+].[NH4+].[O-]C(=O)C([O-])=O VBIXEXWLHSRNKB-UHFFFAOYSA-N 0.000 abstract 1
- 235000010216 calcium carbonate Nutrition 0.000 abstract 1
- 239000010406 cathode material Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 abstract 1
- 229910052573 porcelain Inorganic materials 0.000 abstract 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910000018 strontium carbonate Inorganic materials 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 abstract 1
- 229910003452 thorium oxide Inorganic materials 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 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
- H01J1/142—Solid thermionic cathodes characterised by the material with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive 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
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Discharge Lamp (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL314779X | 1952-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB725450A true GB725450A (en) | 1955-03-02 |
Family
ID=19783766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7760/53A Expired GB725450A (en) | 1952-03-24 | 1953-03-20 | Improvements in or relating to methods of making electric discharge tubes |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE518639A (enrdf_load_stackoverflow) |
| CH (1) | CH314779A (enrdf_load_stackoverflow) |
| DE (1) | DE974888C (enrdf_load_stackoverflow) |
| FR (1) | FR1073725A (enrdf_load_stackoverflow) |
| GB (1) | GB725450A (enrdf_load_stackoverflow) |
| IT (1) | IT500462A (enrdf_load_stackoverflow) |
| NL (1) | NL168358C (enrdf_load_stackoverflow) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE572700C (de) * | 1926-06-09 | 1933-03-22 | Friedrich Meyer Dr | Gluehkathode fuer Entladungsgefaesse |
| NL24414C (enrdf_load_stackoverflow) * | 1926-06-09 | |||
| CH128076A (de) * | 1926-06-09 | 1928-10-01 | Philips Nv | Glühkathode für Entladungsgefässe. |
| NL23762C (enrdf_load_stackoverflow) * | 1928-04-13 | |||
| DE597580C (de) * | 1928-05-01 | 1934-05-26 | Osram G M B H Komm Ges | Elektrische Leucht- oder Ultraviolett-Bestrahlungsroehre |
| GB311294A (en) * | 1928-05-08 | 1930-08-08 | Hans Joachim Spanner | Improvements in and relating to electric discharge devices |
| US2249672A (en) * | 1936-12-10 | 1941-07-15 | Gen Electric | Discharge device |
| BE482916A (enrdf_load_stackoverflow) * | 1947-06-05 | |||
| GB650730A (en) * | 1947-07-16 | 1951-02-28 | British Thomson Houston Co Ltd | Improvements in and relating to electron emitting materials |
-
0
- IT IT500462D patent/IT500462A/it unknown
- NL NLAANVRAGE7014589,A patent/NL168358C/xx active
- BE BE518639D patent/BE518639A/xx unknown
-
1953
- 1953-03-20 GB GB7760/53A patent/GB725450A/en not_active Expired
- 1953-03-22 DE DEN6922A patent/DE974888C/de not_active Expired
- 1953-03-23 FR FR1073725D patent/FR1073725A/fr not_active Expired
- 1953-03-23 CH CH314779D patent/CH314779A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL168358C (nl) | |
| DE974888C (de) | 1961-05-25 |
| IT500462A (enrdf_load_stackoverflow) | |
| BE518639A (enrdf_load_stackoverflow) | |
| CH314779A (de) | 1956-06-30 |
| FR1073725A (fr) | 1954-09-28 |
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