GB649193A - Improvements in and relating to electric switching means - Google Patents

Improvements in and relating to electric switching means

Info

Publication number
GB649193A
GB649193A GB5480/48A GB548048A GB649193A GB 649193 A GB649193 A GB 649193A GB 5480/48 A GB5480/48 A GB 5480/48A GB 548048 A GB548048 A GB 548048A GB 649193 A GB649193 A GB 649193A
Authority
GB
United Kingdom
Prior art keywords
relating
switching means
electric switching
feb
switch
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
GB5480/48A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB649193A publication Critical patent/GB649193A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/04—Co-operating contacts of different material

Landscapes

  • Lubricants (AREA)

Abstract

649,193. Regulating-switches; switch contacts. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 24, 1948, No. 5480. Convention date, Feb. 24, 1947. Drawings to Specification. [Class 38 (v) ] The movable and fixed contacts of a tapchanging switch, e.g. that of Specification 502,393, are coated, respectively, with rhodium and gold, in order to prevent the formation of sulphides by the action of the transformer oil thereon.
GB5480/48A 1947-02-24 1948-02-24 Improvements in and relating to electric switching means Expired GB649193A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US649193XA 1947-02-24 1947-02-24

Publications (1)

Publication Number Publication Date
GB649193A true GB649193A (en) 1951-01-24

Family

ID=22059129

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5480/48A Expired GB649193A (en) 1947-02-24 1948-02-24 Improvements in and relating to electric switching means

Country Status (1)

Country Link
GB (1) GB649193A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039622B (en) * 1956-04-18 1958-09-25 Licentia Gmbh Diverter for power transformers with externally sprung contact units formed from contact jaws and blade contacts
DE1056701B (en) * 1956-04-19 1959-05-06 Licentia Gmbh Contact arrangement formed from contact jaws and blade contacts, in particular for reversers and change-over devices for power transformers
EP0017404A1 (en) * 1979-03-29 1980-10-15 Fujitsu Limited A rhodium electrical contact of a switch particularly a reed switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039622B (en) * 1956-04-18 1958-09-25 Licentia Gmbh Diverter for power transformers with externally sprung contact units formed from contact jaws and blade contacts
DE1056701B (en) * 1956-04-19 1959-05-06 Licentia Gmbh Contact arrangement formed from contact jaws and blade contacts, in particular for reversers and change-over devices for power transformers
EP0017404A1 (en) * 1979-03-29 1980-10-15 Fujitsu Limited A rhodium electrical contact of a switch particularly a reed switch

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