GB362374A - Improvements in thermionic valves - Google Patents
Improvements in thermionic valvesInfo
- Publication number
- GB362374A GB362374A GB2321930A GB2321930A GB362374A GB 362374 A GB362374 A GB 362374A GB 2321930 A GB2321930 A GB 2321930A GB 2321930 A GB2321930 A GB 2321930A GB 362374 A GB362374 A GB 362374A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- envelope
- metal
- block
- electrodes
- 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
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/32—Anodes
- H01J19/34—Anodes forming part of the envelope
-
- 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
- H01J2893/0002—Construction arrangements of electrode systems
- H01J2893/0003—Anodes forming part of vessel walls
- H01J2893/0004—Anodes formed in central part
Landscapes
- Particle Accelerators (AREA)
Abstract
362,374. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.-(Gibson, W. T., and Boulestreau, A. H. ; 46, Avenue de Breteuil, Paris.) Aug. 1, 1930, No. 23219. [Class 39 (i).] One or more electrodes are supported each by a metallic tubular member, one end of which is mounted in the envelope, and the other carries a platform supporting the electrode, the tubular member serving also as a channel for evacuating the valve. As shown, the metal tube 5 has a flared end sealed to a re-entrant part 3 of the envelope, and at the other end has a nickel block 6 carrying three rods 7 on which a helical grid 10 is wound. The tube has holes 11 to facilitate evacuation, and is connected by a tube 14 with a glass tube 15 through which the valve is evacuated. Strips 16 make connection with the tube 14. A screen 20 around the tube 14 spreads the field due to current in the tube. The supports for the cathode filament 30 are secured in a metal block 26 mounted in a metal tube 25 of conical shape, which also acts as a screen for the leads and is provided with an extension 54 which is secured by a ring 56 to a tube 57 sealed to the envelope and protects the envelope from bombardment. The leads to the filament are insulated from the block 26 and connected with threaded parts 43, a nut 42, and flexible conductors 44. An anode 1, provided with screens 59, is spaced by insulators from supporting members 60. The ends of the envelope are protected by metal covers 19, 53 carrying contacts. The electrodes may be of circular or flattened tubular section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2321930A GB362374A (en) | 1930-08-01 | 1930-08-01 | Improvements in thermionic valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2321930A GB362374A (en) | 1930-08-01 | 1930-08-01 | Improvements in thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB362374A true GB362374A (en) | 1931-12-01 |
Family
ID=10192078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2321930A Expired GB362374A (en) | 1930-08-01 | 1930-08-01 | Improvements in thermionic valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB362374A (en) |
-
1930
- 1930-08-01 GB GB2321930A patent/GB362374A/en not_active Expired
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