GB1374768A - Electrical circuit breakers - Google Patents

Electrical circuit breakers

Info

Publication number
GB1374768A
GB1374768A GB3000071A GB3000071A GB1374768A GB 1374768 A GB1374768 A GB 1374768A GB 3000071 A GB3000071 A GB 3000071A GB 3000071 A GB3000071 A GB 3000071A GB 1374768 A GB1374768 A GB 1374768A
Authority
GB
United Kingdom
Prior art keywords
contact
latch
pivoted
electrical circuit
circuit breakers
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
GB3000071A
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.)
Dorman Smith Switchgear Ltd
Original Assignee
Dorman Smith Switchgear 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 Dorman Smith Switchgear Ltd filed Critical Dorman Smith Switchgear Ltd
Priority to GB3000071A priority Critical patent/GB1374768A/en
Publication of GB1374768A publication Critical patent/GB1374768A/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
    • H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
    • 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
    • H01H71/504—Manual reset mechanisms which may be also used for manual release provided with anti-rebound means

Landscapes

  • Breakers (AREA)

Abstract

1374768 Automatic circuit-breakers DORMAN SMITH SWITCHGEAR Ltd 24 April 1972 [25 June 1971] 30000/71 Heading H1N A secondary spring 60 receives and stores energy upon contact-opening movement of the pivoted contact arm arrangement 14 of a circuitbreaker and releases energy upon contact-closing movement of said arrangement, the breaker including a pivoted dolly 34, primary spring 48, trip arm 38, toggle linkage 42, 45 and latch 41 of conventional type. The breaker has an antirebound latch 53, as claimed in Specification 1,343,122, and this Specification is substantially the same as the present Specification. Reference has been directed by the Comptroller to Specifications 1,312,156 and 1,312,157.
GB3000071A 1972-04-24 1972-04-24 Electrical circuit breakers Expired GB1374768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3000071A GB1374768A (en) 1972-04-24 1972-04-24 Electrical circuit breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3000071A GB1374768A (en) 1972-04-24 1972-04-24 Electrical circuit breakers

Publications (1)

Publication Number Publication Date
GB1374768A true GB1374768A (en) 1974-11-20

Family

ID=10300629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3000071A Expired GB1374768A (en) 1972-04-24 1972-04-24 Electrical circuit breakers

Country Status (1)

Country Link
GB (1) GB1374768A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242577A (en) * 1976-12-30 1980-12-30 Westinghouse Electric Corp. Circuit breaker having insulation barrier
US4264796A (en) * 1976-12-30 1981-04-28 Westinghouse Electric Corp. Circuit breaker having improved movable contact
DE3139489A1 (en) * 1981-09-29 1983-07-07 Siemens AG, 1000 Berlin und 8000 München Contact arrangement for electrical power circuit breakers
US4497992A (en) * 1982-01-28 1985-02-05 Mitsubishi Denki Kabushiki Kaisha Air circuit breaker
DE4233918A1 (en) * 1992-10-08 1994-04-14 Schulte Elektrotech Electrical switch with current monitoring
CN104599910A (en) * 2013-10-30 2015-05-06 上海电科电器科技有限公司 Spring mechanism of breaker

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242577A (en) * 1976-12-30 1980-12-30 Westinghouse Electric Corp. Circuit breaker having insulation barrier
US4264796A (en) * 1976-12-30 1981-04-28 Westinghouse Electric Corp. Circuit breaker having improved movable contact
DE3139489A1 (en) * 1981-09-29 1983-07-07 Siemens AG, 1000 Berlin und 8000 München Contact arrangement for electrical power circuit breakers
US4497992A (en) * 1982-01-28 1985-02-05 Mitsubishi Denki Kabushiki Kaisha Air circuit breaker
DE4233918A1 (en) * 1992-10-08 1994-04-14 Schulte Elektrotech Electrical switch with current monitoring
DE4233918B4 (en) * 1992-10-08 2004-02-26 Schulte-Elektrotechnik Gmbh & Co Kg Electrical switch with current monitoring
CN104599910A (en) * 2013-10-30 2015-05-06 上海电科电器科技有限公司 Spring mechanism of breaker
CN104599910B (en) * 2013-10-30 2017-09-15 上海电科电器科技有限公司 The spring mechanism of breaker

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee