GB791495A - Improvements in or relating to cathodes of the dispenser type - Google Patents
Improvements in or relating to cathodes of the dispenser typeInfo
- Publication number
- GB791495A GB791495A GB25371/56A GB2537156A GB791495A GB 791495 A GB791495 A GB 791495A GB 25371/56 A GB25371/56 A GB 25371/56A GB 2537156 A GB2537156 A GB 2537156A GB 791495 A GB791495 A GB 791495A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zirconium
- porous
- aug
- porous body
- central
- 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
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 3
- 229910052726 zirconium Inorganic materials 0.000 abstract 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- 150000001341 alkaline earth metal compounds Chemical class 0.000 abstract 1
- QKYBEKAEVQPNIN-UHFFFAOYSA-N barium(2+);oxido(oxo)alumane Chemical compound [Ba+2].[O-][Al]=O.[O-][Al]=O QKYBEKAEVQPNIN-UHFFFAOYSA-N 0.000 abstract 1
- 239000010406 cathode material Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000010894 electron beam technology Methods 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 239000003870 refractory metal Substances 0.000 abstract 1
- 239000007787 solid Substances 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
- 238000003466 welding Methods 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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
- B66C3/005—Grab supports, e.g. articulations; Oscillation dampers; Orientation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Solid Thermionic Cathode (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US530051A US2895070A (en) | 1955-08-23 | 1955-08-23 | Thermionic cathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB791495A true GB791495A (en) | 1958-03-05 |
Family
ID=24112250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25371/56A Expired GB791495A (en) | 1955-08-23 | 1956-08-20 | Improvements in or relating to cathodes of the dispenser type |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2895070A (enrdf_load_stackoverflow) |
| BE (1) | BE550480A (enrdf_load_stackoverflow) |
| CH (1) | CH344140A (enrdf_load_stackoverflow) |
| DE (1) | DE1043520B (enrdf_load_stackoverflow) |
| FR (1) | FR1178419A (enrdf_load_stackoverflow) |
| GB (1) | GB791495A (enrdf_load_stackoverflow) |
| NL (1) | NL96647C (enrdf_load_stackoverflow) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1075747B (de) * | 1960-02-18 | Deutsche Elektronik G.m.b.H., Berlin-Wilmersdorf | Zylindrische Vorratskathode für Magnetfeldröhren | |
| US3131328A (en) * | 1960-06-20 | 1964-04-28 | Gen Dynamics Corp | Dispenser cathode for cathode ray tube |
| US3255376A (en) * | 1962-01-02 | 1966-06-07 | Rca Corp | Low-noise electron guns |
| US3284657A (en) * | 1963-06-03 | 1966-11-08 | Varian Associates | Grain-oriented thermionic emitter for electron discharge devices |
| US3303378A (en) * | 1964-06-17 | 1967-02-07 | Chorney Paul | Monolithic cathode structure |
| US3747590A (en) * | 1971-06-21 | 1973-07-24 | Nat Cable Molding Corp | Biopotential electrode |
| FR2537338B1 (fr) * | 1982-12-03 | 1985-09-20 | Thomson Csf | Cathode thermoelectronique et procede de realisation d'une telle cathode |
| JP3322183B2 (ja) * | 1997-02-07 | 2002-09-09 | 三菱電機株式会社 | 電子銃 |
| JPH11339633A (ja) * | 1997-11-04 | 1999-12-10 | Sony Corp | 含浸型陰極およびその製造方法、並びに電子銃および電子管 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2131204A (en) * | 1936-01-15 | 1938-09-27 | Siemens Ag | Indirectly heated thermionic cathode |
| DE761089C (de) * | 1937-12-31 | 1954-04-29 | Siemens & Halske A G | Mittelbar geheizte Gluehkathode fuer Braunsche Roehren |
| DE879872C (de) * | 1942-08-19 | 1953-06-15 | Siemens Ag | Kathode zur Erzeugung eines Elektronenstrahles |
| BE498869A (enrdf_load_stackoverflow) * | 1949-10-25 |
-
0
- BE BE550480D patent/BE550480A/xx unknown
- NL NL96647D patent/NL96647C/xx active
-
1955
- 1955-08-23 US US530051A patent/US2895070A/en not_active Expired - Lifetime
-
1956
- 1956-08-20 DE DEN12623A patent/DE1043520B/de active Pending
- 1956-08-20 GB GB25371/56A patent/GB791495A/en not_active Expired
- 1956-08-21 CH CH344140D patent/CH344140A/de unknown
- 1956-08-21 FR FR1178419D patent/FR1178419A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE550480A (enrdf_load_stackoverflow) | |
| CH344140A (de) | 1960-01-31 |
| US2895070A (en) | 1959-07-14 |
| NL96647C (enrdf_load_stackoverflow) | |
| FR1178419A (fr) | 1959-05-11 |
| DE1043520B (de) | 1958-11-13 |
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