GB215836A - Improvements relating to electric switches - Google Patents

Improvements relating to electric switches

Info

Publication number
GB215836A
GB215836A GB4474/23A GB447423A GB215836A GB 215836 A GB215836 A GB 215836A GB 4474/23 A GB4474/23 A GB 4474/23A GB 447423 A GB447423 A GB 447423A GB 215836 A GB215836 A GB 215836A
Authority
GB
United Kingdom
Prior art keywords
lid
tank
lever
closed
rod
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
GB4474/23A
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.)
DAVID REGINALD DAVIES
Metropolitan Vickers Electrical Co Ltd
Original Assignee
DAVID REGINALD DAVIES
Metropolitan Vickers Electrical 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 DAVID REGINALD DAVIES, Metropolitan Vickers Electrical Co Ltd filed Critical DAVID REGINALD DAVIES
Priority to GB4474/23A priority Critical patent/GB215836A/en
Priority to US689884A priority patent/US1643806A/en
Publication of GB215836A publication Critical patent/GB215836A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/46—Interlocking mechanisms
    • H01H33/48—Interlocking mechanisms for interlocking between casing or cover and mechanism for operating contacts

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Electrostatic Spraying Apparatus (AREA)

Abstract

215,836. Davies, D. R., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 16, 1923. Oil switches.-A con tact 3 within the tank 7. is automatically earthed when the lid 14 of the tank is raised and disconnected from earth when the lid is closed. The earthing means comprise a rod 16 sliding in a fixed earth support 17, a two armed lever 18 pivotec to the tank at 19, a spring 22 which urges the lever 18 and rod 16 downwards and a pro jection 21 on the lid which presses on the end of the lever 18 when the lid is closed. The invention is shown applied to a switch in which a conductor 2 having contacts 3 is adapted to be connected by blades 4 with either of two fixed contacts 5 connected to conductors 1, actuation being effected by handles 8.
GB4474/23A 1923-02-15 1923-02-15 Improvements relating to electric switches Expired GB215836A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4474/23A GB215836A (en) 1923-02-15 1923-02-15 Improvements relating to electric switches
US689884A US1643806A (en) 1923-02-15 1924-02-01 Electric switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4474/23A GB215836A (en) 1923-02-15 1923-02-15 Improvements relating to electric switches

Publications (1)

Publication Number Publication Date
GB215836A true GB215836A (en) 1924-05-15

Family

ID=9777853

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4474/23A Expired GB215836A (en) 1923-02-15 1923-02-15 Improvements relating to electric switches

Country Status (2)

Country Link
US (1) US1643806A (en)
GB (1) GB215836A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028459A (en) * 1959-02-19 1962-04-03 Fed Pacific Electric Co Switch and enclosure therefor

Also Published As

Publication number Publication date
US1643806A (en) 1927-09-27

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