GB715423A - Improvements in and relating to electrical circuit breakers - Google Patents

Improvements in and relating to electrical circuit breakers

Info

Publication number
GB715423A
GB715423A GB17019/52A GB1701952A GB715423A GB 715423 A GB715423 A GB 715423A GB 17019/52 A GB17019/52 A GB 17019/52A GB 1701952 A GB1701952 A GB 1701952A GB 715423 A GB715423 A GB 715423A
Authority
GB
United Kingdom
Prior art keywords
relating
electrical circuit
circuit breakers
arcs
bimetallic element
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
GB17019/52A
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.)
Mechanical Products Inc
Original Assignee
Mechanical Products Inc
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 Mechanical Products Inc filed Critical Mechanical Products Inc
Publication of GB715423A publication Critical patent/GB715423A/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
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • 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
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts

Landscapes

  • Breakers (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

715,423. Automatic circuit-breakers. MECHANICAL PRODUCTS, Inc. July 7, 1952 [May 24, 1952], No. 17019/52. Class 38(5) In a circuit-breaker such as that of Specification 690,530, having a hollow cylindrical casing 1 containing a bimetallic element (not shown) mounted for movement with respect to a relatively fixed abutment from which it frees itself to release the movable contacts, the casing is formed with inwardly-projecting wall portions 36 to shield the fixed contact-carrying conductors 34 from the direct effects of the arcs drawn between the circuitbreaker contacts when they are separated under overload conditions. The bimetallic element is also protected from the arcs by plates 38 which overlie the element.
GB17019/52A 1952-05-24 1952-07-07 Improvements in and relating to electrical circuit breakers Expired GB715423A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US289742A US2665347A (en) 1952-05-24 1952-05-24 Electric circuit breaker

Publications (1)

Publication Number Publication Date
GB715423A true GB715423A (en) 1954-09-15

Family

ID=23112882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17019/52A Expired GB715423A (en) 1952-05-24 1952-07-07 Improvements in and relating to electrical circuit breakers

Country Status (7)

Country Link
US (1) US2665347A (en)
CH (1) CH306771A (en)
DE (1) DE962091C (en)
ES (1) ES204934A1 (en)
FR (1) FR1062637A (en)
GB (1) GB715423A (en)
NL (1) NL79693C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL90626C (en) * 1953-01-19
CH327891A (en) * 1954-06-08 1958-02-15 Weber Ag Fab Elektro Circuit breaker with bimetal overcurrent release
DE974206C (en) * 1954-06-10 1960-11-03 Busch Jaeger Duerener Metall Overcurrent circuit breaker with manual and magnetic or thermal release
US2824931A (en) * 1955-03-07 1958-02-25 Mechanical Products Inc Electric overload circuit breaker
DE1138146B (en) * 1961-04-21 1962-10-18 Licentia Gmbh Installation circuit breaker in screw base form

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE695021C (en) * 1937-12-14 1940-08-16 Siemens Schuckertwerke Akt Ges Installation auto switch
DE705619C (en) * 1939-08-03 1941-05-05 Siemens Schuckertwerke Akt Ges Installation auto switch
DE729566C (en) * 1941-03-07 1942-12-18 Sursum Elek Zitaets Ges Leyhau Spark chamber arrangement for automatic switch
US2378648A (en) * 1943-10-29 1945-06-19 Square D Co Electric switch
US2453235A (en) * 1944-05-10 1948-11-09 Cutler Hammer Inc Nonfree-tripping overload circuit breaker
US2459629A (en) * 1945-08-10 1949-01-18 Westinghouse Electric Corp Circuit breaker

Also Published As

Publication number Publication date
US2665347A (en) 1954-01-05
CH306771A (en) 1955-04-30
ES204934A1 (en) 1952-10-16
DE962091C (en) 1957-04-18
FR1062637A (en) 1954-04-26
NL79693C (en)

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