GB567680A - Improvements in speed-actuated electric switches or circuit breakers - Google Patents

Improvements in speed-actuated electric switches or circuit breakers

Info

Publication number
GB567680A
GB567680A GB7694/43A GB769443A GB567680A GB 567680 A GB567680 A GB 567680A GB 7694/43 A GB7694/43 A GB 7694/43A GB 769443 A GB769443 A GB 769443A GB 567680 A GB567680 A GB 567680A
Authority
GB
United Kingdom
Prior art keywords
speed
circuit breakers
electric switches
actuated electric
actuated
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
GB7694/43A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB567680A publication Critical patent/GB567680A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/26—Switches having at least one liquid contact with level of surface of contact liquid displaced by centrifugal action

Landscapes

  • Control Of Transmission Device (AREA)
  • Control Of Ac Motors In General (AREA)
  • Centrifugal Separators (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

567,680. Automatic control systems. KOHL, E. F. May 14, 1943, No. 7694. Convention date, May 16, 1942. Drawings to Specification. [Class 38 (iv)] [Also in Group XXXVII] Speed.-One of a number of contacts opened in succession by a centrifugally - operated mercury switch, is included in a motor circuit to limit the speed to a selected value.
GB7694/43A 1942-05-16 1943-05-14 Improvements in speed-actuated electric switches or circuit breakers Expired GB567680A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US443205A US2410663A (en) 1942-05-16 1942-05-16 Circuit interrupting device

Publications (1)

Publication Number Publication Date
GB567680A true GB567680A (en) 1945-02-27

Family

ID=23759818

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7694/43A Expired GB567680A (en) 1942-05-16 1943-05-14 Improvements in speed-actuated electric switches or circuit breakers

Country Status (3)

Country Link
US (1) US2410663A (en)
CH (1) CH242711A (en)
GB (1) GB567680A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518478A (en) * 1942-05-16 1950-08-15 Everard F Kohl Centrifugal fluid governor
US2900467A (en) * 1944-02-25 1959-08-18 Ben W Sewell Switch
US2926226A (en) * 1946-01-10 1960-02-23 Kenneth M Kiel Mercury switch
DE102004029748B3 (en) * 2004-06-19 2006-02-09 Pierburg Gmbh Device for detecting a shaft break

Also Published As

Publication number Publication date
US2410663A (en) 1946-11-05
CH242711A (en) 1946-05-31

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