GB478798A - Improvements in and relating to electric discharge devices - Google Patents
Improvements in and relating to electric discharge devicesInfo
- Publication number
- GB478798A GB478798A GB18432/37A GB1843237A GB478798A GB 478798 A GB478798 A GB 478798A GB 18432/37 A GB18432/37 A GB 18432/37A GB 1843237 A GB1843237 A GB 1843237A GB 478798 A GB478798 A GB 478798A
- Authority
- GB
- United Kingdom
- Prior art keywords
- class
- electrode
- envelope
- july
- anode
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/50—Thermionic-cathode tubes
- H01J17/52—Thermionic-cathode tubes with one cathode and one anode
- H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
- H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control
Landscapes
- Gas-Filled Discharge Tubes (AREA)
Abstract
478,798. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. July 2, 1937, No. 18432. Convention date, July 2, 1936. [Class 39 (i)] A gas- or vapour-electric arc discharge device, having an envelope containing an anode D, an incandescent cathode B and an intervening control grid C arranged so as substantially to screen the discharge path against charges upon the envelope wall, is provided with an auxiliarv electrode in the form of a metallic band or strip E, which serves to screen the discharge path and control grid against external influences, being mounted externally upon the wall of the envelope in the neighbourhood of the anode and having a potential applied thereto, such as by connecting it with one of the main electrodes of the device. The potential, which may be applied to the electrode E through a resistance, inductance or capacity, may be fixed, periodically variable, or adjustable, and the electrode E may take the form of a sheet-iron strip or a sprayed coating of limited width. Specifications 14170/03, [Class 39], 209,426, [Class 39 (i)], and 459,114 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE478798X | 1936-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB478798A true GB478798A (en) | 1938-01-25 |
Family
ID=6542307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18432/37A Expired GB478798A (en) | 1936-07-02 | 1937-07-02 | Improvements in and relating to electric discharge devices |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB478798A (en) |
| NL (1) | NL49365C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2514165A (en) * | 1942-11-23 | 1950-07-04 | M O Valve Co Ltd | Thermionic gas-filled rectifier |
-
0
- NL NL49365D patent/NL49365C/xx active
-
1937
- 1937-07-02 GB GB18432/37A patent/GB478798A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2514165A (en) * | 1942-11-23 | 1950-07-04 | M O Valve Co Ltd | Thermionic gas-filled rectifier |
Also Published As
| Publication number | Publication date |
|---|---|
| NL49365C (en) |
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