GB224877A - Improvements in electron discharge devices - Google Patents
Improvements in electron discharge devicesInfo
- Publication number
- GB224877A GB224877A GB25538/24A GB2553824A GB224877A GB 224877 A GB224877 A GB 224877A GB 25538/24 A GB25538/24 A GB 25538/24A GB 2553824 A GB2553824 A GB 2553824A GB 224877 A GB224877 A GB 224877A
- Authority
- GB
- United Kingdom
- Prior art keywords
- leads
- pedestal
- anchor
- filaments
- stem
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 4
- 239000011521 glass Substances 0.000 abstract 2
- 239000010453 quartz Substances 0.000 abstract 2
- 239000003870 refractory metal Substances 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- JOCBASBOOFNAJA-UHFFFAOYSA-N N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid Chemical compound OCC(CO)(CO)NCCS(O)(=O)=O JOCBASBOOFNAJA-UHFFFAOYSA-N 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000010445 mica Substances 0.000 abstract 1
- 229910052618 mica group Inorganic materials 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum 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
- H01J1/15—Cathodes heated directly by an electric current
- H01J1/18—Supports; Vibration-damping arrangements
Landscapes
- Electron Sources, Ion Sources (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Abstract
224,877. British Thomson-Houston Co., Ltd., (Assignees of Nolte, H. J., and Prindle, R. B.). Nov. 13, 1923, [Convention date]. Vacuum tubes. - A c a t h o d e structure which comprises a pedestal 11, Fig. 1, of refractory metal such as tungsten, carrying an insulating anchor 14, is supported solely by the two leads 5, 6. The pedestal is clamped to the leads 5, 6 by metal p l a t e s 12 separated by mica and secured together by wire 13. The anchor consists of a quartz sleeve grooved to receive bands 15, Fig. 2, of refractory metal such as molybdenum, in which are held hooks 17 for the bights of the filaments 19, 20. A plate 22 welded to the pedestal is formed with a, lug 23 engaging with the anchor to prevent rotation. The filaments are connected in series by welding the ends to the leads 5, 6 and to a cross-piece on the pedestal. The leads are joined to cones 7 sealed into a re-entrant glass stem 4, and are provided with shields 9 for preventing ionic bombardment of the seals. Quartz sleeves 8 are mounted around the leads, and a glass sheath 10 surrounds the stem 4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US674549A US1673789A (en) | 1923-11-13 | 1923-11-13 | Electron-discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB224877A true GB224877A (en) | 1925-11-19 |
Family
ID=24707036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25538/24A Expired GB224877A (en) | 1923-11-13 | 1924-10-27 | Improvements in electron discharge devices |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1673789A (en) |
| GB (1) | GB224877A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63180789U (en) * | 1987-05-15 | 1988-11-22 | ||
| US6454311B1 (en) * | 2000-09-28 | 2002-09-24 | Lincoln Brass Works, Inc. | Gas line mounting assembly |
-
1923
- 1923-11-13 US US674549A patent/US1673789A/en not_active Expired - Lifetime
-
1924
- 1924-10-27 GB GB25538/24A patent/GB224877A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1673789A (en) | 1928-06-12 |
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