GB217647A - Improvements in or relating to vacuum electric tube devices - Google Patents
Improvements in or relating to vacuum electric tube devicesInfo
- Publication number
- GB217647A GB217647A GB786023A GB786023A GB217647A GB 217647 A GB217647 A GB 217647A GB 786023 A GB786023 A GB 786023A GB 786023 A GB786023 A GB 786023A GB 217647 A GB217647 A GB 217647A
- Authority
- GB
- United Kingdom
- Prior art keywords
- supports
- wire
- anode
- helix
- relating
- 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
- Microwave Tubes (AREA)
Abstract
217,647. Lowden, T. W. March 19, 1923. Vacuum tubes. - The anode of a valve consists of a wire helix 3 with spaced turns surrounding t h e cathode 1, the ends of the wire being connected with supports 6 insulated from each other so that no part of the helix is short-circuited, and one of the supports acts as a lead-in. The grid 3a may consist of a wire helix mounted on supports 7 in a similar manner, the pitch of the turns being generally less than that of the anode. The helices may be welded to the supports or the ends of the wire may serve as supports. The leads 12 may be insulated by glass tubes 14. The anode and grid supports may all extend through the pinch 8 so that a current may be passed through the electrodes during evacuation of the bulb. The helices may be of circular, oval or other tubular section. According to the Provisional Specification, the wire may be of square or rectangular section, or in the form of a strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB786023A GB217647A (en) | 1923-03-19 | 1923-03-19 | Improvements in or relating to vacuum electric tube devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB786023A GB217647A (en) | 1923-03-19 | 1923-03-19 | Improvements in or relating to vacuum electric tube devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB217647A true GB217647A (en) | 1924-06-19 |
Family
ID=9841174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB786023A Expired GB217647A (en) | 1923-03-19 | 1923-03-19 | Improvements in or relating to vacuum electric tube devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB217647A (en) |
-
1923
- 1923-03-19 GB GB786023A patent/GB217647A/en not_active Expired
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