GB993284A - Electric circuit breakers - Google Patents

Electric circuit breakers

Info

Publication number
GB993284A
GB993284A GB42188/62A GB4218862A GB993284A GB 993284 A GB993284 A GB 993284A GB 42188/62 A GB42188/62 A GB 42188/62A GB 4218862 A GB4218862 A GB 4218862A GB 993284 A GB993284 A GB 993284A
Authority
GB
United Kingdom
Prior art keywords
electric circuit
circuit breakers
nov
breakers
heading
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
GB42188/62A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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
Priority claimed from US152395A external-priority patent/US3240903A/en
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB993284A publication Critical patent/GB993284A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
    • H01H71/524—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism the contact arm being pivoted on handle and mechanism spring acting between cradle and contact arm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H01H71/162—Electrothermal mechanisms with bimetal element with compensation for ambient temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7409—Interchangeable elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7427—Adjusting only the electrothermal mechanism
    • H01H71/7436—Adjusting the position (or prestrain) of the bimetal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/12—Means for indicating condition of the switch
    • H01H73/14—Indicating lamp structurally associated with the switch

Landscapes

  • Breakers (AREA)
  • Distribution Board (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

993,284. Automatic circuit-breakers. WESTINGHOUSE ELECTRIC CORPORATION. Nov. 8, 1962 [Nov. 15, 1961], No. 42188/62. Drawings to Specification. Heading H2B. The subject-matter is substantially identical with that of Specification 993,285 but the claims relate to the self-aligning of the breaker contacts.
GB42188/62A 1961-11-15 1962-11-08 Electric circuit breakers Expired GB993284A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US152395A US3240903A (en) 1961-11-15 1961-11-15 Circuit interrupter with thermal trip means
US466784A US3320380A (en) 1961-11-15 1965-06-24 Circuit interrupter with an improved contact structure

Publications (1)

Publication Number Publication Date
GB993284A true GB993284A (en) 1965-05-26

Family

ID=26849513

Family Applications (2)

Application Number Title Priority Date Filing Date
GB42189/62A Expired GB993285A (en) 1961-11-15 1962-11-08 Automatic electric circuit breakers
GB42188/62A Expired GB993284A (en) 1961-11-15 1962-11-08 Electric circuit breakers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB42189/62A Expired GB993285A (en) 1961-11-15 1962-11-08 Automatic electric circuit breakers

Country Status (2)

Country Link
US (1) US3320380A (en)
GB (2) GB993285A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233482A (en) * 1977-02-28 1980-11-11 Gould Inc. Enclosed fused disconnect switch
US4242551A (en) * 1979-05-14 1980-12-30 Carlingswitch, Inc. Environmentally sealed rocker switch
US4340791A (en) * 1979-05-14 1982-07-20 Carlingswitch, Inc. Environmentally sealed rocker switch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1853752A (en) * 1930-02-07 1932-04-12 Wadsworth Electric Mfg Co Quick acting switch
US2103070A (en) * 1933-03-06 1937-12-21 Bulldog Electric Prod Co Circuit breaker
US2037544A (en) * 1933-08-17 1936-04-14 Gen Electric Circuit breaker contact
US2109378A (en) * 1936-07-08 1938-02-22 Arrow Hart & Hegeman Electric Snap switch
US2285887A (en) * 1941-07-10 1942-06-09 Monowatt Electric Corp Push button circuit closer

Also Published As

Publication number Publication date
GB993285A (en) 1965-05-26
US3320380A (en) 1967-05-16

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