GB538440A - Improvements in and relating to electrical capacity boxes - Google Patents

Improvements in and relating to electrical capacity boxes

Info

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
Application number
GB3304739A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Muirhead and Co Ltd
Original Assignee
Muirhead and Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Muirhead and Co Ltd filed Critical Muirhead and Co Ltd
Priority to GB3304739A priority Critical patent/GB538440A/en
Publication of GB538440A publication Critical patent/GB538440A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00Details 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.
GB3304739A 1939-12-29 1939-12-29 Improvements in and relating to electrical capacity boxes Expired GB538440A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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