GB301855A - Improvements in or relating to electronic discharge bulbs - Google Patents
Improvements in or relating to electronic discharge bulbsInfo
- Publication number
- GB301855A GB301855A GB4159/28A GB415928A GB301855A GB 301855 A GB301855 A GB 301855A GB 4159/28 A GB4159/28 A GB 4159/28A GB 415928 A GB415928 A GB 415928A GB 301855 A GB301855 A GB 301855A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- filament
- tube
- cathode
- rontgen
- 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
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
Landscapes
- Discharge Lamp (AREA)
Abstract
301,855. Etablissements Gaiffe- Gallot et Pilon. Dec. 7, 1927, [Convention date]. Vacuum tubes; Rontgen-ray tubes.-One part of each electrode in a discharge tube is adapted to be heated to incandescence so that each electrode may be used alternatively as the cathode or the anode, and means are provided to prevent the bombardment of an incandescible part when not in use by the cathode beam from the active cathode. In the arrangement shown in Fig. 1, each electrode A, B comprises a plate having a central recess in which a filament F is located. A metal rod C deflects the electrons from each filament away from the opposite filament. In the arrangement shown in Fig. 2, the filament of each electrode is opposite the plate of the other electrode and out of the range of the cathode beam therefrom. Both filaments may be incandesced together to facilitate degassing the electrodes during the exhaustion of the tube, and also while the tube is in use, e.g. as a Rontgen-ray tube.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR301855X | 1927-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB301855A true GB301855A (en) | 1929-04-25 |
Family
ID=8888563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4159/28A Expired GB301855A (en) | 1927-12-07 | 1928-02-09 | Improvements in or relating to electronic discharge bulbs |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB301855A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2449967A (en) * | 1944-05-10 | 1948-09-21 | Jones Frank Llewellyn | Spark gap |
-
1928
- 1928-02-09 GB GB4159/28A patent/GB301855A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2449967A (en) * | 1944-05-10 | 1948-09-21 | Jones Frank Llewellyn | Spark gap |
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