GB710990A - Improvements in or relating to electric discharge tubes for short-wave working - Google Patents
Improvements in or relating to electric discharge tubes for short-wave workingInfo
- Publication number
- GB710990A GB710990A GB9691/52A GB969152A GB710990A GB 710990 A GB710990 A GB 710990A GB 9691/52 A GB9691/52 A GB 9691/52A GB 969152 A GB969152 A GB 969152A GB 710990 A GB710990 A GB 710990A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- relating
- short
- april
- electric discharge
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B35/00—Other machines for working soil not specially adapted for working soil on which crops are growing
- A01B35/02—Other machines for working soil not specially adapted for working soil on which crops are growing with non-rotating tools
- A01B35/10—Other machines for working soil not specially adapted for working soil on which crops are growing with non-rotating tools mounted on tractors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/36—Tubes with flat electrodes, e.g. disc electrode
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Lasers (AREA)
Abstract
710,990. High-frequency discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 17, 1952 [April 20, 1951], No. 9691/52. Class 39(1) The anode 3 of a discharge tube is screwed into a tubular member 10 which has a disc portion 6 sealed to the tube wall 9, until the correct grid spacing is obtained, secured in position by melting a ring i of solder, and the outer end of the member 10 hermetically closed by welding a metal disc 12 thereon. The embodiment shown is a highfrequency triode, with flat grid and cathode of the disc-seal type. A supporting table 17 underneath the tube prevents cracking under the pressure of welding electrode 15. A channel 13 allows the space between anode 3 and disc 12 to be evacuated, after both have been sealed in position. Other electrodes may be secured in position in a similar manner.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL710990X | 1951-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB710990A true GB710990A (en) | 1954-06-23 |
Family
ID=19813633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9691/52A Expired GB710990A (en) | 1951-04-20 | 1952-04-17 | Improvements in or relating to electric discharge tubes for short-wave working |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB710990A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6139439A (en) * | 1994-05-11 | 2000-10-31 | Nicholas M. Kavouklis | Means for linearizing an open air flow |
-
1952
- 1952-04-17 GB GB9691/52A patent/GB710990A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6139439A (en) * | 1994-05-11 | 2000-10-31 | Nicholas M. Kavouklis | Means for linearizing an open air flow |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB644418A (en) | Improvements in and relating to ionization-type vacuum gauges | |
| GB710990A (en) | Improvements in or relating to electric discharge tubes for short-wave working | |
| GB730920A (en) | Improvements in or relating to high-vacuum electric discharge tubes of the kind comprising cold electrodes | |
| GB804697A (en) | Improvements in x-ray tubes | |
| GB836038A (en) | Improvements relating to electron discharge devices | |
| US2349363A (en) | Metal casing discharge device | |
| GB621813A (en) | Improvements in electron discharge tubes | |
| GB663854A (en) | Electric discharge tube | |
| GB669716A (en) | Improvements in or relating to electric discharge tubes | |
| GB664347A (en) | Improvements in and relating to methods of and apparatus for manufacturing electric discharge devices | |
| GB648046A (en) | Improvements in or relating to electric discharge tubes comprising disc-like electrodes | |
| FR2389992A1 (en) | CRT electron gun construction - has concentric, circular, annular and cylindrical plates defining vacuum envelope and active element electrodes | |
| GB504123A (en) | Improvements in or relating to electric discharge devices and the envelopes thereof | |
| GB672266A (en) | Improvements in and relating to the manufacture of electron discharge tubes | |
| GB583177A (en) | Improvements in electrode assemblies of electron discharge devices | |
| GB757444A (en) | Improvements in or relating to electron discharge tubes | |
| GB728067A (en) | Improvements relating to thermionic cathode discharge tubes | |
| GB709103A (en) | Improvements in or relating to gas-filled electric discharge tubes | |
| GB655216A (en) | Improvements in or relating to electric discharge tubes | |
| GB630136A (en) | Improvements in electron discharge device | |
| GB573571A (en) | Improvements in or relating to the mounting of electrodes in electric discharge tubes | |
| GB702437A (en) | Improvements in or relating to ceramic-to-metal seals | |
| GB514455A (en) | Improvements in or relating to electron discharge devices | |
| GB413302A (en) | Improvements in electric discharge devices and circuits used therewith | |
| GB455499A (en) | Improvements in or relating to electron discharge devices |