GB1090933A - Improvements in circuit breakers - Google Patents

Improvements in circuit breakers

Info

Publication number
GB1090933A
GB1090933A GB16901/65A GB1690165A GB1090933A GB 1090933 A GB1090933 A GB 1090933A GB 16901/65 A GB16901/65 A GB 16901/65A GB 1690165 A GB1690165 A GB 1690165A GB 1090933 A GB1090933 A GB 1090933A
Authority
GB
United Kingdom
Prior art keywords
lever
link
casing
spring
latch
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
GB16901/65A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1090933A publication Critical patent/GB1090933A/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
    • H01H71/527—Manual reset mechanisms which may be also used for manual release actuated by lever making use of a walking beam with one extremity latchable, the other extremity actuating or supporting the movable contact and an intermediate part co-operating with the actuator
    • 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
    • H01H73/48—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 having both electrothermal and electromagnetic automatic release
    • H01H73/50—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 having both electrothermal and electromagnetic automatic release reset by lever

Abstract

1,090,933. Automatic circuit-breakers. GENERAL ELECTRIC CO. April 21, 1965 [May 28, 1964], No. 16901/65. Heading H2B. A circuit-breaker has a contact-carrying member 19 pivoted at 25 to a lever 23 which fulcrums at 37 on a latch 38 and is pivoted at 21 to a link 22. The member 19 is biased by a spring 27 and has a hook portion 20 loosely embracing the pin 21 to permit relative movement between the member 19 and lever 23 so that the spring may provide adequate contact pressure. The link 22 is connected by a pin 32 and slot 33 to an arcuate portion 30 of an operating member 29 which moves in an arcuate slot 30a formed in the casing 11. The circuitbreaker is maintained closed by the end of the link 22 abutting the side wall of the casing. Under overload conditions, an electromagnet 42 or a bi-metallic strip 46 move an armature 43 to release the end 45 of the latch 38 which releases the end of the lever 23 so that this lever and the contact-carrying member are turned anticlockwise by the spring 27 to open the contacts 17, 18. As this occurs, the end of the lever 23 strikes an extension 22a of the link 22 and moves its end from its engagement with the casing so that the operating member 29 is moved back to the " off" position enabling the various parts to reset automatically in readiness for a manual closing operation.
GB16901/65A 1964-05-28 1965-04-21 Improvements in circuit breakers Expired GB1090933A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US370970A US3263045A (en) 1964-05-28 1964-05-28 Circuit breaker with high and low overcurrent means for disengaging the latch

Publications (1)

Publication Number Publication Date
GB1090933A true GB1090933A (en) 1967-11-15

Family

ID=23461948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16901/65A Expired GB1090933A (en) 1964-05-28 1965-04-21 Improvements in circuit breakers

Country Status (3)

Country Link
US (1) US3263045A (en)
DE (1) DE1513156A1 (en)
GB (1) GB1090933A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140209A (en) * 1983-04-20 1984-11-21 Airpax Corp Circuit breaker

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525058A (en) * 1968-04-30 1970-08-18 Westinghouse Electric Corp Circuit breaker with improved trip means
US3512112A (en) * 1969-01-14 1970-05-12 Maier & Cie Charles Switch and circuit breaker combination
DE3028377C2 (en) * 1980-07-26 1982-10-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Switching mechanism for circuit breakers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140209A (en) * 1983-04-20 1984-11-21 Airpax Corp Circuit breaker

Also Published As

Publication number Publication date
US3263045A (en) 1966-07-26
DE1513156A1 (en) 1970-03-12

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