GB515101A - Improvements in or relating to electron discharge devices - Google Patents
Improvements in or relating to electron discharge devicesInfo
- Publication number
- GB515101A GB515101A GB15325/38A GB1532538A GB515101A GB 515101 A GB515101 A GB 515101A GB 15325/38 A GB15325/38 A GB 15325/38A GB 1532538 A GB1532538 A GB 1532538A GB 515101 A GB515101 A GB 515101A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- discharge devices
- electron discharge
- class
- platinum
- 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
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- 244000178870 Lavandula angustifolia Species 0.000 abstract 1
- 235000010663 Lavandula angustifolia Nutrition 0.000 abstract 1
- 230000001476 alcoholic effect Effects 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 239000007772 electrode material Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000001102 lavandula vera Substances 0.000 abstract 1
- 235000018219 lavender Nutrition 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- CLSUSRZJUQMOHH-UHFFFAOYSA-L platinum dichloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0019—Chemical composition and manufacture
- H01J2893/002—Chemical composition and manufacture chemical
Landscapes
- Hybrid Cells (AREA)
- Inert Electrodes (AREA)
Abstract
515,101. Electrode materials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 23, 1938, No. 15325. Convention date, May 21, 1937. [Class 39 (i)] To reduce emission from the grids, anodes &c. of thermionic valves they are coated with platinum. A process for effecting this is described comprising dipping the electrode in an alcoholic solution of platinum chloride with oil of lavender and Wisconsin or Burgundy pitch, heating to somewhat above 250‹C. and then to a bright red heat. Specifications 121,878, [Class 39 (i)], and 475,183 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US515101XA | 1937-05-21 | 1937-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB515101A true GB515101A (en) | 1939-11-27 |
Family
ID=21971740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15325/38A Expired GB515101A (en) | 1937-05-21 | 1938-05-23 | Improvements in or relating to electron discharge devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB515101A (en) |
-
1938
- 1938-05-23 GB GB15325/38A patent/GB515101A/en not_active Expired
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