GB701061A - Improvements in force-transmitting linkages suitable for automatic electric circuit breakers - Google Patents

Improvements in force-transmitting linkages suitable for automatic electric circuit breakers

Info

Publication number
GB701061A
GB701061A GB18782/51A GB1878251A GB701061A GB 701061 A GB701061 A GB 701061A GB 18782/51 A GB18782/51 A GB 18782/51A GB 1878251 A GB1878251 A GB 1878251A GB 701061 A GB701061 A GB 701061A
Authority
GB
United Kingdom
Prior art keywords
spring
handle
toggle
link
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
GB18782/51A
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.)
Heinemann Electric Co
Original Assignee
Heinemann 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 Heinemann Electric Co filed Critical Heinemann Electric Co
Publication of GB701061A publication Critical patent/GB701061A/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
    • H01H71/1009—Interconnected mechanisms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20582—Levers
    • Y10T74/20588—Levers toggle

Abstract

701,061. Automatic circuit-breakers. HEINEMANN ELECTRIC CO. Aug. 9, 1951 [June 26, 1951], No. 18782/51. Class 38(5) In a trip-free circuit-breaker, similar to that of Specification 684,311, and having a toggle linkage between the contact lever 2<SP>1</SP> and the operating handle 12, the latter is moved automatically to the " off " position only after the contacts are open. The toggle comprises links 9, 10 joined together at 13<SP>1</SP>, to the lever 2<SP>1</SP> at 18, and to an extension 11 of the handle at 19. The coils 23 of a spring surround the ends of pivot 19 and a portion 22 lies above the link 10, the free ends of the spring abutting the handle pivot 13. Normally the spring is unstrained, but on release of the toggle, the link 10 is moved to stress the spring, Fig. 6, which when it subsequently expands resets the toggle and moves the handle " off ", Fig. 7. The spring may be assisted or replaced by a blade spring 21a, Fig. 6, secured to link 10. The movement of the handle may operate an indicator, or the handles of several single-pole breakers may be mechanically connected so that movement of one causes opening of the remaining breakers without breaking their toggles. Specifications 642,923,. 684,327 and 684,390 also are referred to.
GB18782/51A 1951-06-26 1951-08-09 Improvements in force-transmitting linkages suitable for automatic electric circuit breakers Expired GB701061A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US233551A US2690486A (en) 1951-06-26 1951-06-26 Circuit breaker

Publications (1)

Publication Number Publication Date
GB701061A true GB701061A (en) 1953-12-16

Family

ID=22877696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18782/51A Expired GB701061A (en) 1951-06-26 1951-08-09 Improvements in force-transmitting linkages suitable for automatic electric circuit breakers

Country Status (2)

Country Link
US (1) US2690486A (en)
GB (1) GB701061A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802922A (en) * 1954-09-13 1957-08-13 Gen Electric Contact arm assembly for circuit interrupter
GB783470A (en) * 1955-06-17 1957-09-25 Crabtree & Co Ltd J A Improvements in dolly-operated circuit breakers
US2989612A (en) * 1957-12-11 1961-06-20 Westinghouse Electric Corp Enclosed electric switch
US3016435A (en) * 1959-03-18 1962-01-09 Heinemann Electric Co Circuit breaker and latch structure
US3056008A (en) * 1960-03-07 1962-09-25 Heinemann Electric Co Circuit breaker
US3083281A (en) * 1960-06-22 1963-03-26 Airpax Electronics Circuit breakers
US3388357A (en) * 1964-10-08 1968-06-11 Texas Instruments Inc Magnetic type circuit breaker
US3842376A (en) * 1971-08-02 1974-10-15 Heinemann Electric Co Fastener and circuit breaker case
US4163881A (en) * 1977-09-29 1979-08-07 Westinghouse Electric Corp. Circuit breaker with thrust transmitting spring
US4618745A (en) * 1985-04-01 1986-10-21 Heinemann Electric Company Circuit breaker mechanism
US6040543A (en) * 1999-08-13 2000-03-21 Egs Electrical Group Llc Explosion proof toggle switch
US7545247B2 (en) * 2006-11-16 2009-06-09 Eaton Corporation Electrical switching apparatus, and case and terminal shield therefor
ES2946269T3 (en) * 2018-04-23 2023-07-14 Abb Spa circuit breaker

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL23500C (en) * 1927-02-04
US1923092A (en) * 1930-05-08 1933-08-22 Horst Adam Electric switch
US2072932A (en) * 1934-03-28 1937-03-09 Heinemann Electric Co Method of and apparatus for controlling electric circuits
US2360922A (en) * 1939-04-06 1944-10-24 Heinemann Circuit Breaker Comp Circuit breaker
US2372778A (en) * 1940-04-27 1945-04-03 Ite Circuit Breaker Ltd Circuit breaker
US2277645A (en) * 1941-04-21 1942-03-24 Arrow Hart & Hegeman Electric Coupling for electric switch handles

Also Published As

Publication number Publication date
US2690486A (en) 1954-09-28

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