GB438683A - Improvements in thermionic electrodes - Google Patents
Improvements in thermionic electrodesInfo
- Publication number
- GB438683A GB438683A GB3186034A GB3186034A GB438683A GB 438683 A GB438683 A GB 438683A GB 3186034 A GB3186034 A GB 3186034A GB 3186034 A GB3186034 A GB 3186034A GB 438683 A GB438683 A GB 438683A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge
- inner member
- alkaline earth
- wholly
- surrounding
- 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
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/067—Main electrodes for low-pressure discharge lamps
- H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
Landscapes
- Plasma Technology (AREA)
Abstract
438,683. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent-Treuhand-Ges. f³r Electrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) Nov. 6, 1934, No. 31860. Drawings to Specification. [Class 39 (i)] A thermionic electrode adapted to be heated wholly by the discharge comprises an outer member consisting wholly or mainly of alkaline earths and surrounding an inner member the surface of which is adapted to receive the main part of the discharge. The inner member may comprise a rod of alkaline earth metals, or oxides, or both surrounded by a tungsten helix. The outer member consisting of an alkaline earth is a cylinder fitting around and supported by this member. An independently supported metal cylinder, insulated from the inner member may surround the whole. The inner member may be shorter than the surrounding members in the direction of the discharge. The invention is applicable to potential dividers of the discharge type.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL41599D NL41599C (en) | 1934-10-27 | ||
| DEP70194D DE647728C (en) | 1934-10-27 | 1934-10-27 | Electric gas or vapor discharge tubes, in particular electric light tubes |
| GB3186034A GB438683A (en) | 1934-11-06 | 1934-11-06 | Improvements in thermionic electrodes |
| FR796314D FR796314A (en) | 1934-10-26 | 1935-10-15 | Electric discharge tube, in particular luminescent tube |
| US45139A US2046941A (en) | 1934-10-27 | 1935-10-15 | Gaseous electric discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3186034A GB438683A (en) | 1934-11-06 | 1934-11-06 | Improvements in thermionic electrodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB438683A true GB438683A (en) | 1935-11-21 |
Family
ID=10329476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3186034A Expired GB438683A (en) | 1934-10-26 | 1934-11-06 | Improvements in thermionic electrodes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB438683A (en) |
-
1934
- 1934-11-06 GB GB3186034A patent/GB438683A/en not_active Expired
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