GB538257A - Improvements relating to the evacuation of x-ray tubes - Google Patents
Improvements relating to the evacuation of x-ray tubesInfo
- Publication number
- GB538257A GB538257A GB9277/40A GB927740A GB538257A GB 538257 A GB538257 A GB 538257A GB 9277/40 A GB9277/40 A GB 9277/40A GB 927740 A GB927740 A GB 927740A GB 538257 A GB538257 A GB 538257A
- Authority
- GB
- United Kingdom
- Prior art keywords
- getter
- ray tubes
- evacuation
- flashed
- 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
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/20—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
Landscapes
- X-Ray Techniques (AREA)
Abstract
538,257. R÷ntgen ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. May 27, 1940, No. 9277. Convention date, May 26, 1939. [Class 39 (i)] A getter is housed in a pocket 31 in an X-ray tube so that when flashed the products will remain in the pocket and not spread on the electrodes. The getter is contained in a receptacle 41, Fig. 2, with perforations 47 and a plate 49 for attachment to a support 39 fixed to a skirt 25 on the cathode. In a modification the material is contained in a hollow wire 61, Figs. 7 and 9, with a weakened side 63 which collapses to allow the material to enter the envelope space ; the wire may form a flat coil. The getter may be of barium and/or aluminium and it may be flashed electrically.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US538257XA | 1939-05-26 | 1939-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB538257A true GB538257A (en) | 1941-07-25 |
Family
ID=21986791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9277/40A Expired GB538257A (en) | 1939-05-26 | 1940-05-27 | Improvements relating to the evacuation of x-ray tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB538257A (en) |
-
1940
- 1940-05-27 GB GB9277/40A patent/GB538257A/en not_active Expired
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