GB1294050A - Circuit breaker overcurrent release - Google Patents

Circuit breaker overcurrent release

Info

Publication number
GB1294050A
GB1294050A GB02115/71A GB1211571A GB1294050A GB 1294050 A GB1294050 A GB 1294050A GB 02115/71 A GB02115/71 A GB 02115/71A GB 1211571 A GB1211571 A GB 1211571A GB 1294050 A GB1294050 A GB 1294050A
Authority
GB
United Kingdom
Prior art keywords
lever
circuit
breaker
long arm
release
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
GB02115/71A
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.)
LODZKIE ZAKLADY APARATURY ELEK
Original Assignee
LODZKIE ZAKLADY APARATURY ELEK
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 PL140335A external-priority patent/PL66930B1/pl
Application filed by LODZKIE ZAKLADY APARATURY ELEK filed Critical LODZKIE ZAKLADY APARATURY ELEK
Publication of GB1294050A publication Critical patent/GB1294050A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
    • A61B17/66—Alignment, compression or distraction mechanisms

Abstract

1294050 Automatic circuit-breakers LODZKIE ZAKLADY APARATURY ELEKTRYCZNEJ 29 April 1971 [30 April 1970] 12115/71 Heading H1N An overcurrent tripping device comprises a thermal element 32 and an electromagnetic element 41 which act on a trip-bar 21 to release the long arm 17 of a first lever pivoted on a shaft, this lever being biased by a first torsion spring so as to strike a lug 26 on the long arm of a second lever pivoted on the same shaft and oppositely biased by a weaker second torsion spring so that a lug 27 on the long arm normally abuts a fixed insulating base member. The second lever has a short arm 28 carrying a roller 29 from which a circuit-breaker release lever 31 is released when the second lever is turned by the first lever. The first lever also has a short arm 22 which, when the circuit-breaker has been tripped open, extends into the path of movement of the circuit-breaker operating lever 23 so that movement of the operating lever 23 to the "off" position shown resets the device.
GB02115/71A 1970-04-30 1971-04-29 Circuit breaker overcurrent release Expired GB1294050A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL140335A PL66930B1 (en) 1970-04-30

Publications (1)

Publication Number Publication Date
GB1294050A true GB1294050A (en) 1972-10-25

Family

ID=19951613

Family Applications (1)

Application Number Title Priority Date Filing Date
GB02115/71A Expired GB1294050A (en) 1970-04-30 1971-04-29 Circuit breaker overcurrent release

Country Status (11)

Country Link
US (1) US3761854A (en)
BE (1) BE766374A (en)
CS (1) CS174814B2 (en)
DD (1) DD99259A1 (en)
DE (1) DE2118032A1 (en)
FR (1) FR2086499B3 (en)
GB (1) GB1294050A (en)
HU (1) HU168252B (en)
RO (1) RO58446A (en)
SU (1) SU466573A1 (en)
TR (1) TR16893A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6672280B2 (en) 2001-03-09 2004-01-06 Visteon Global Technologies, Inc. Torsion spring assembly for electronic throttle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136921A (en) * 1957-12-10 1964-06-09 Westinghouse Electric Corp Circuit breakers
US3064101A (en) * 1958-12-08 1962-11-13 Ite Circuit Breaker Ltd Compounded thermal bimetal for ambient compensation
US3185792A (en) * 1961-05-24 1965-05-25 Gen Electric Circuit breaker trip mechanism
US3345481A (en) * 1962-05-28 1967-10-03 Westinghouse Electric Corp Circuit interrupter
US3244837A (en) * 1962-12-17 1966-04-05 Ite Circuit Breaker Ltd Heating means for bimetal trip element
US3171929A (en) * 1962-12-31 1965-03-02 Gen Electric Circuit breaker with releasable cam type mechanism
US3350525A (en) * 1965-01-25 1967-10-31 Gen Electric Circuit breaker resetting mechanism

Also Published As

Publication number Publication date
TR16893A (en) 1973-09-01
DE2118032A1 (en) 1971-12-02
US3761854A (en) 1973-09-25
FR2086499A3 (en) 1971-12-31
FR2086499B3 (en) 1974-02-15
BE766374A (en) 1971-09-16
HU168252B (en) 1976-03-28
DD99259A1 (en) 1973-07-20
SU466573A1 (en) 1975-04-05
CS174814B2 (en) 1977-04-29
RO58446A (en) 1975-09-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees