GB905641A - Improvements in electric circuit breakers - Google Patents

Improvements in electric circuit breakers

Info

Publication number
GB905641A
GB905641A GB4342761A GB4342761A GB905641A GB 905641 A GB905641 A GB 905641A GB 4342761 A GB4342761 A GB 4342761A GB 4342761 A GB4342761 A GB 4342761A GB 905641 A GB905641 A GB 905641A
Authority
GB
United Kingdom
Prior art keywords
electric circuit
circuit breakers
breakers
circuitbreaker
crabtree
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
GB4342761A
Inventor
Edward Coleman
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.)
JA Crabtree and Co Ltd
Original Assignee
JA Crabtree and Co 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 JA Crabtree and Co Ltd filed Critical JA Crabtree and Co Ltd
Priority to GB4342761A priority Critical patent/GB905641A/en
Publication of GB905641A publication Critical patent/GB905641A/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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/34—Electromagnetic mechanisms having two or more armatures controlled by a common winding
    • H01H71/345—Electromagnetic mechanisms having two or more armatures controlled by a common winding having a delayed movable core and a movable armature
    • 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
    • H01H73/36—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 electromagnetic release and no other automatic release
    • H01H73/38—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 electromagnetic release and no other automatic release reset by lever

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

905,641. Automatic circuit-breakers. CRABTREE & CO. Ltd., J. A. May 25, 1960 [June 16, 1959], No. 43427/61. Divided out of 905,639. Drawings to Specification. Class 38 (5). A moulded case circuit-breaker has electromagnetically-operated tripping means including an armature floatably located on a rivet projecting from a magnet frame. The circuitbreaker is that described in Specification 905,639. Specifications 905,640 and 905,642 also are referred to.
GB4342761A 1959-06-16 1959-06-16 Improvements in electric circuit breakers Expired GB905641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4342761A GB905641A (en) 1959-06-16 1959-06-16 Improvements in electric circuit breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4342761A GB905641A (en) 1959-06-16 1959-06-16 Improvements in electric circuit breakers

Publications (1)

Publication Number Publication Date
GB905641A true GB905641A (en) 1962-09-12

Family

ID=10428703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4342761A Expired GB905641A (en) 1959-06-16 1959-06-16 Improvements in electric circuit breakers

Country Status (1)

Country Link
GB (1) GB905641A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0633589A1 (en) * 1993-07-06 1995-01-11 Circuit Breaker Industries Limited Circuit breaker mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0633589A1 (en) * 1993-07-06 1995-01-11 Circuit Breaker Industries Limited Circuit breaker mechanism

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