GB862259A - Improvements in and relating to electric circuit breakers - Google Patents

Improvements in and relating to electric circuit breakers

Info

Publication number
GB862259A
GB862259A GB16279/59A GB1627959A GB862259A GB 862259 A GB862259 A GB 862259A GB 16279/59 A GB16279/59 A GB 16279/59A GB 1627959 A GB1627959 A GB 1627959A GB 862259 A GB862259 A GB 862259A
Authority
GB
United Kingdom
Prior art keywords
catch
wires
knob
breaker
downwardly
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
GB16279/59A
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 GB862259A publication Critical patent/GB862259A/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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/18—Electrothermal mechanisms with expanding rod, strip, or wire
    • 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
    • H01H73/22—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 electrothermal release and no other automatic release
    • H01H73/30—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 electrothermal release and no other automatic release reset by push-button, pull-knob or slide
    • H01H73/306—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 electrothermal release and no other automatic release reset by push-button, pull-knob or slide the push-button supporting pivotally a combined contact-latch lever

Landscapes

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

Abstract

862,259. Automatic circuit breakers. MECHANICAL PRODUCTS Inc. May 12, 1959 [June 9, 1958], No. 16279/59. Class 38 (5). A circuit breaker has two series hot wires 302 (only one shown) connected at 316 by a first order lever or a single wire arranged around a pulley to be equivalent to two series wires. A spring 384 tensions the wires and when they expand is allowed to move arm 370 of catch 362 to release the contact assembly 324 whereupon plunger 326 is urged downwardly by spring 346. Lower plunger 338 also moves downwardly when the roller catch 352 releases, and the breaker is manually actuated by pulling knob 340 down to release the catch 352 and thus to allow both plungers to move downwardly. The breaker is trip free and cannot be reset by pushing in knob 340 until the wires have cooled sufficiently to allow the catch 362 to engage the contact assembly 324 and thus to pivot the assembly about the centre pivot when fixed contact 312 and moving contact 322 can be pushed together by the movement of the knob 340. Specification 848,522 is referred to.
GB16279/59A 1958-06-09 1959-05-12 Improvements in and relating to electric circuit breakers Expired GB862259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US741207A US2943172A (en) 1958-06-09 1958-06-09 Electric switch incorporating an automatic circuit breaker

Publications (1)

Publication Number Publication Date
GB862259A true GB862259A (en) 1961-03-08

Family

ID=24979792

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16279/59A Expired GB862259A (en) 1958-06-09 1959-05-12 Improvements in and relating to electric circuit breakers

Country Status (5)

Country Link
US (1) US2943172A (en)
DE (1) DE1126975B (en)
FR (1) FR1226392A (en)
GB (1) GB862259A (en)
NL (1) NL100555C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232466A1 (en) * 1982-09-01 1984-03-01 Bayerische Motoren Werke AG, 8000 München SWITCHING ARRANGEMENT IN MOTOR VEHICLES

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021404A (en) * 1959-10-09 1962-02-13 Wood Electric Corp Heat responsive wire controlled overload circuit breaker
US3142737A (en) * 1960-09-09 1964-07-28 Wood Electric Corp Heat responsive wire circuit breaker
GB932104A (en) * 1960-09-13 1963-07-24 Ass Elect Ind Thermal overload electric relay
US3134873A (en) * 1960-10-07 1964-05-26 Mechanical Products Inc Thermo-responsive trip free circuit breaker
US3256405A (en) * 1961-05-15 1966-06-14 Texas Instruments Inc Rapid response electrical switch and the like
US3242289A (en) * 1963-08-26 1966-03-22 Mechanical Products Inc Trip device for circuit breaker
US3261949A (en) * 1963-11-18 1966-07-19 Mechanical Products Inc Circuit breaker
US4054857A (en) * 1976-08-02 1977-10-18 General Electric Company Time delay disconnect switch

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US554557A (en) * 1896-02-11 Electric switch
DE394057C (en) * 1924-04-12 Tutrix Akt Ges Electric current overload protection
US1046499A (en) * 1911-03-06 1912-12-10 George J Schneider Automatic controlling-switch for electric circuits.
CH91711A (en) * 1921-06-13 1922-04-01 Marcel Kuenzer Circuit breaker.
DE392296C (en) * 1921-12-11 1924-03-18 Tutrix Akt Ges Electrical fuse, in particular in the form of a screw plug, with a hot wire and an electromagnet to interrupt the circuit
DE383105C (en) * 1922-05-21 1923-10-10 Otto Stolz Electric safety switch in screw plug shape controlled by hot wire
DE443870C (en) * 1924-09-02 1927-05-12 Allg Elektro Ind Heinrich Wink Automatic push-button overcurrent switch in plug form with hot wire release and axially movable switching element
US1627029A (en) * 1925-05-08 1927-05-03 Milton E Greenway Automatic circuit breaker
US1990122A (en) * 1933-03-30 1935-02-05 Hauser Michael Electrical overload circuit breaker
AT147220B (en) * 1936-01-02 1936-10-10 Hedwig Gottschlich Overcurrent circuit breaker.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232466A1 (en) * 1982-09-01 1984-03-01 Bayerische Motoren Werke AG, 8000 München SWITCHING ARRANGEMENT IN MOTOR VEHICLES

Also Published As

Publication number Publication date
NL238421A (en) 1961-09-15
FR1226392A (en) 1960-07-11
NL100555C (en) 1962-02-15
US2943172A (en) 1960-06-28
DE1126975B (en) 1962-04-05

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