GB905642A - Improvements in electric circuit breakers - Google Patents

Improvements in electric circuit breakers

Info

Publication number
GB905642A
GB905642A GB4342861A GB4342861A GB905642A GB 905642 A GB905642 A GB 905642A GB 4342861 A GB4342861 A GB 4342861A GB 4342861 A GB4342861 A GB 4342861A GB 905642 A GB905642 A GB 905642A
Authority
GB
United Kingdom
Prior art keywords
circuit
electric circuit
circuit breakers
breaker
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
GB4342861A
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 GB4342861A priority Critical patent/GB905642A/en
Publication of GB905642A publication Critical patent/GB905642A/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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7463—Adjusting only the electromagnetic mechanism

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

905,642. Automatic circuit-breakers. CRABTREE & CO. Ltd., J. A. May 25, 1960 [June 16, 1959], No. 43428/61. Divided out of 905,639. Drawings to Specification. Class 38 (5). In a moulded case circuit-breaker having overload-responsive electromagnetically-tripped mechanism, the pressure of a compression spring acting on an armature is adjustable by a screw in a tapped opening, access to which may be obstructed by a rivet interconnecting the casing parts of the circuit-breaker. The circuitbreaker is that described in Specification 905,639. Specifications 905,640 and 905,641 also are referred to.
GB4342861A 1959-06-16 1959-06-16 Improvements in electric circuit breakers Expired GB905642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4342861A GB905642A (en) 1959-06-16 1959-06-16 Improvements in electric circuit breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4342861A GB905642A (en) 1959-06-16 1959-06-16 Improvements in electric circuit breakers

Publications (1)

Publication Number Publication Date
GB905642A true GB905642A (en) 1962-09-12

Family

ID=10428704

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4342861A Expired GB905642A (en) 1959-06-16 1959-06-16 Improvements in electric circuit breakers

Country Status (1)

Country Link
GB (1) GB905642A (en)

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