GB538440A - Improvements in and relating to electrical capacity boxes - Google Patents
Improvements in and relating to electrical capacity boxesInfo
- Publication number
- GB538440A GB538440A GB3304739A GB3304739A GB538440A GB 538440 A GB538440 A GB 538440A GB 3304739 A GB3304739 A GB 3304739A GB 3304739 A GB3304739 A GB 3304739A GB 538440 A GB538440 A GB 538440A
- Authority
- GB
- United Kingdom
- Prior art keywords
- series
- elements
- capacity
- relating
- condenser
- 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
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Conversion In General (AREA)
Abstract
538,440. Variable condensers. MUIRHEAD & CO., Ltd., and DAVIDSON, J. A. B. Dec. 29, 1939, No. 33047. Drawings to Specification. [Class 37] A capacity box comprises sets of mixed condenser elements with switching means for each so that a varying number of elements may be brought into circuit in each set, the sets being connected in series and in series with a fixed condenser shunted by a variable condenser, there being no short-circuit for the first step in the series. The capacity values of the elements are so chosen that the box will give a continuously variable degree of reciprocal of capacity. Specifications 489,849, 497,148 and 524,314, [all in Group XL], are referred to. Reference has been directed by the Comptroller to Specification 529,526.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3304739A GB538440A (en) | 1939-12-29 | 1939-12-29 | Improvements in and relating to electrical capacity boxes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3304739A GB538440A (en) | 1939-12-29 | 1939-12-29 | Improvements in and relating to electrical capacity boxes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB538440A true GB538440A (en) | 1941-08-05 |
Family
ID=10347818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3304739A Expired GB538440A (en) | 1939-12-29 | 1939-12-29 | Improvements in and relating to electrical capacity boxes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB538440A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2578557A (en) * | 1946-01-25 | 1951-12-11 | Rca Corp | Electric timing device |
| DE1065095B (en) * | 1952-06-10 | 1959-09-10 | Siemens Ag | Power capacitor, switchable at connection terminals, especially for high voltage |
| CN108132451A (en) * | 2018-01-30 | 2018-06-08 | 成都开谱电子科技有限公司 | A kind of wide-range standard capacitance box |
| CN108181602A (en) * | 2018-01-30 | 2018-06-19 | 成都开谱电子科技有限公司 | A kind of wide-range standard capacitance box |
-
1939
- 1939-12-29 GB GB3304739A patent/GB538440A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2578557A (en) * | 1946-01-25 | 1951-12-11 | Rca Corp | Electric timing device |
| DE1065095B (en) * | 1952-06-10 | 1959-09-10 | Siemens Ag | Power capacitor, switchable at connection terminals, especially for high voltage |
| CN108132451A (en) * | 2018-01-30 | 2018-06-08 | 成都开谱电子科技有限公司 | A kind of wide-range standard capacitance box |
| CN108181602A (en) * | 2018-01-30 | 2018-06-19 | 成都开谱电子科技有限公司 | A kind of wide-range standard capacitance box |
| CN108181602B (en) * | 2018-01-30 | 2023-12-22 | 成都开谱电子科技有限公司 | Wide-range standard capacitor box |
| CN108132451B (en) * | 2018-01-30 | 2024-01-26 | 成都开谱电子科技有限公司 | Wide-range standard capacitor box |
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