GB1256379A - Improvements in or relating to electron beam welding guns and cathode emitter structures therefor - Google Patents
Improvements in or relating to electron beam welding guns and cathode emitter structures thereforInfo
- Publication number
- GB1256379A GB1256379A GB58317/69A GB5831769A GB1256379A GB 1256379 A GB1256379 A GB 1256379A GB 58317/69 A GB58317/69 A GB 58317/69A GB 5831769 A GB5831769 A GB 5831769A GB 1256379 A GB1256379 A GB 1256379A
- Authority
- GB
- United Kingdom
- Prior art keywords
- support
- cathode
- welded
- electron beam
- beam welding
- 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
- 238000010894 electron beam technology Methods 0.000 title abstract 2
- 238000003466 welding Methods 0.000 title abstract 2
- 239000004020 conductor Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 239000012212 insulator Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- DECCZIUVGMLHKQ-UHFFFAOYSA-N rhenium tungsten Chemical compound [W].[Re] DECCZIUVGMLHKQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 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
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
- H01J37/06—Electron sources; Electron guns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
- H01J37/06—Electron sources; Electron guns
- H01J37/065—Construction of guns or parts thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electron Sources, Ion Sources (AREA)
- Microwave Tubes (AREA)
- Solid Thermionic Cathode (AREA)
- Particle Accelerators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR176086 | 1968-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1256379A true GB1256379A (en) | 1971-12-08 |
Family
ID=8657662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB58317/69A Expired GB1256379A (en) | 1968-11-29 | 1969-11-28 | Improvements in or relating to electron beam welding guns and cathode emitter structures therefor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3612942A (fr) |
| JP (1) | JPS4912824B1 (fr) |
| CH (1) | CH510484A (fr) |
| DE (1) | DE1959950A1 (fr) |
| FR (1) | FR1599106A (fr) |
| GB (1) | GB1256379A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2214705A (en) * | 1988-01-26 | 1989-09-06 | English Electric Valve Co Ltd | Directly heated cathode |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4598226A (en) * | 1984-12-17 | 1986-07-01 | Clegg John E | Concave conical foil-filament lamp |
| GB9720350D0 (en) * | 1997-09-24 | 1997-11-26 | Welding Inst | Improvements relating to charged particle beams |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1980447A (en) * | 1931-04-14 | 1934-11-13 | Lincoln Electric Co | Arc welding apparatus |
-
1968
- 1968-11-29 FR FR176086A patent/FR1599106A/fr not_active Expired
-
1969
- 1969-11-28 US US880715A patent/US3612942A/en not_active Expired - Lifetime
- 1969-11-28 GB GB58317/69A patent/GB1256379A/en not_active Expired
- 1969-11-28 DE DE19691959950 patent/DE1959950A1/de not_active Ceased
- 1969-11-28 CH CH1783269A patent/CH510484A/fr not_active IP Right Cessation
- 1969-11-29 JP JP44095616A patent/JPS4912824B1/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2214705A (en) * | 1988-01-26 | 1989-09-06 | English Electric Valve Co Ltd | Directly heated cathode |
Also Published As
| Publication number | Publication date |
|---|---|
| CH510484A (fr) | 1971-07-31 |
| FR1599106A (fr) | 1970-07-15 |
| US3612942A (en) | 1971-10-12 |
| DE1959950A1 (de) | 1970-06-25 |
| JPS4912824B1 (fr) | 1974-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1055729A (en) | Cathode ray tubes | |
| GB1256379A (en) | Improvements in or relating to electron beam welding guns and cathode emitter structures therefor | |
| US2460141A (en) | Electric discharge device | |
| GB1136144A (en) | Electronic beam generating devices | |
| US2418844A (en) | Ultra high frequency tube | |
| US2064981A (en) | Braun tube for television receiver apparatus | |
| GB1357469A (en) | Electron-beam generators for transit-time electron discharge tubes | |
| GB1141448A (en) | Multiple-cathode x-ray triode tube | |
| US2468417A (en) | Cascade amplifying circuit using gaseous discharge tubes | |
| US2443205A (en) | Gaseous discharge device | |
| US2946910A (en) | Infrared image converter tubes | |
| US3099762A (en) | Cathode ray tube using replaceable cathode | |
| US2414581A (en) | Cathode assembly for magnetrons | |
| GB1190424A (en) | Electron Discharge Device for Generation of Spectral Radiation | |
| GB1046425A (en) | Dispenser cathode | |
| US2067966A (en) | Electron discharge device | |
| US1760525A (en) | Rectifier | |
| US2404413A (en) | Electrical gaseous discharge device | |
| US3560780A (en) | Vacuum tube with coaxial assembly of electrostatic focusing means and electron gun mount | |
| US2256330A (en) | High voltage rectifier | |
| GB1162108A (en) | Improvements in or relating to Thermionic Cathodes for Electron Beam Tubes | |
| GB824762A (en) | Improvements relating to controllable gas-filled electric discharge devices of the thyratron type | |
| US2719935A (en) | Electronic discharge device having a wire mesh element to control the electron flow | |
| GB978217A (en) | Improvements in directly-heated cathodes for electric discharge tubes | |
| US2415349A (en) | Electron discharge tube for ultra high frequencies |