GB774116A - Improvements in or relating to devices comprising electrical condensers adapted to vary their capacity periodically - Google Patents
Improvements in or relating to devices comprising electrical condensers adapted to vary their capacity periodicallyInfo
- Publication number
- GB774116A GB774116A GB3563753A GB3563753A GB774116A GB 774116 A GB774116 A GB 774116A GB 3563753 A GB3563753 A GB 3563753A GB 3563753 A GB3563753 A GB 3563753A GB 774116 A GB774116 A GB 774116A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- coil
- dec
- stem
- terminals
- 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
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
774,116. Variable capacitors. ELECTRONIC INSTRUMENTS, Ltd., and WILSTEAD, G. H. Dec. 20, 1954 [Dec. 22, 1953], No. 35637/53. Class 37. An electrical capacitor, the capacitance of which may be made to vary periodically, comprises a sealed container in which are mounted a fixed electrode 1 and a movable electrode 2, the electrode 2 being supported by resilient spiders 4, 5 and being associated with a coil 6 which when energized with alternating current causes the electrode 2 to undergo a vertical reciprocating motion. An adjusting block 20 is provided; the position of this may be adjusted with respect to the lower end of the stem 3 of the electrode 2 and the reluctance of the magnetic circuit associated with the coil 6 adjusted correspondingly. After assembly, the container is first evacuated and then filled with an inert gas through the tube 36 which is then sealed. The electrodes 1, 2 are composed of stainless steel, the adjacent surfaces being optically flat and having a thin coating of gold deposited on them. The lower electrode 2 is connected to one of the terminals 35, the other two terminals being connected to the energizing coil. The stem 22 of the upper electrode serves as a terminal therefor being insulated from the casing which is preferably of steel by the glass seal 24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3563753A GB774116A (en) | 1953-12-22 | 1953-12-22 | Improvements in or relating to devices comprising electrical condensers adapted to vary their capacity periodically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3563753A GB774116A (en) | 1953-12-22 | 1953-12-22 | Improvements in or relating to devices comprising electrical condensers adapted to vary their capacity periodically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB774116A true GB774116A (en) | 1957-05-08 |
Family
ID=10379929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3563753A Expired GB774116A (en) | 1953-12-22 | 1953-12-22 | Improvements in or relating to devices comprising electrical condensers adapted to vary their capacity periodically |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB774116A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1095399B (en) * | 1958-01-02 | 1960-12-22 | Siemens Ag | Electromagnetically excited oscillating capacitor under vacuum |
| DE1121219B (en) * | 1958-01-02 | 1962-01-04 | Siemens Ag | Oscillating capacitor |
| DE1225761B (en) * | 1962-09-20 | 1966-09-29 | Electronic Instr Ltd | Oscillating capacitor |
-
1953
- 1953-12-22 GB GB3563753A patent/GB774116A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1095399B (en) * | 1958-01-02 | 1960-12-22 | Siemens Ag | Electromagnetically excited oscillating capacitor under vacuum |
| DE1121219B (en) * | 1958-01-02 | 1962-01-04 | Siemens Ag | Oscillating capacitor |
| DE1225761B (en) * | 1962-09-20 | 1966-09-29 | Electronic Instr Ltd | Oscillating capacitor |
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