GB898533A - Improvements in or relating to thermally operated electric circuit breakers - Google Patents

Improvements in or relating to thermally operated electric circuit breakers

Info

Publication number
GB898533A
GB898533A GB36269/60A GB3626960A GB898533A GB 898533 A GB898533 A GB 898533A GB 36269/60 A GB36269/60 A GB 36269/60A GB 3626960 A GB3626960 A GB 3626960A GB 898533 A GB898533 A GB 898533A
Authority
GB
United Kingdom
Prior art keywords
relating
electric circuit
circuit breakers
bimetal
breaker
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
GB36269/60A
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.)
Ellenberger and Poensgen GmbH
Original Assignee
Ellenberger and Poensgen GmbH
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 DEE18401A external-priority patent/DE1114911B/en
Application filed by Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Publication of GB898533A publication Critical patent/GB898533A/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
    • H01H73/22—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
    • 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
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • 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
    • H01H71/44—Automatic release mechanisms with or without manual release having means for introducing a predetermined time delay
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0072—Disassembly or repair of discharge tubes
    • H01J2893/0073—Discharge tubes with liquid poolcathodes; constructional details
    • H01J2893/0074—Cathodic cups; Screens; Reflectors; Filters; Windows; Protection against mercury deposition; Returning condensed electrode material to the cathodic cup; Liquid electrode level control
    • H01J2893/0075—Cathodic cups
    • H01J2893/0078—Mounting cathodic cups in the discharge tube

Abstract

898,533. Thermal switches. ELLENBERGER & POENSGEN G.m.b.H. Oct. 21, 1960 [Oct. 24, 1959], No. 36269/60. Addition to 860,861. Class 38 (5). The thermally-operated circuit-breaker of the parent Specification is modified by forming the rocking member 29 as a snap-acting, deadcentre, leaf spring with V-shaped ends 30, 31 engaging bimetal 16 and contact blade 15 respectively. In the open position, the notch in end 31 moves to a position beyond the cold position of the bimetal, in which position it raises a reset button 24 which requires to be depressed to re-set the movable contact. The reset button 24 slides in a recess in the casing and has a transverse slot therein which receives a retaining shoulder 26 of the casing. The button is normally biased downwards by a spring 27. The circuit-breaker may alternatively be reset electromagnetically.
GB36269/60A 1958-04-23 1960-10-21 Improvements in or relating to thermally operated electric circuit breakers Expired GB898533A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEE15754A DE1083413B (en) 1958-04-23 1958-04-23 Thermal overcurrent release
DEE18401A DE1114911B (en) 1959-10-24 1959-10-24 Thermal overcurrent release

Publications (1)

Publication Number Publication Date
GB898533A true GB898533A (en) 1962-06-14

Family

ID=25972925

Family Applications (2)

Application Number Title Priority Date Filing Date
GB10224/59A Expired GB860861A (en) 1958-04-23 1959-03-24 Thermally operated electric circuit breaker
GB36269/60A Expired GB898533A (en) 1958-04-23 1960-10-21 Improvements in or relating to thermally operated electric circuit breakers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB10224/59A Expired GB860861A (en) 1958-04-23 1959-03-24 Thermally operated electric circuit breaker

Country Status (5)

Country Link
US (1) US2952758A (en)
DE (1) DE1083413B (en)
DK (1) DK105932C (en)
FR (1) FR1221454A (en)
GB (2) GB860861A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140635B (en) * 1959-10-24 1962-12-06 Ellenberger & Poensgen Multipole motor protection switch
US3022403A (en) * 1960-05-02 1962-02-20 Monitor Controller Division Of Thermally controlled switch
US3265831A (en) * 1962-06-21 1966-08-09 Westinghouse Electric Corp Thermally responsive electrical control device
FR1430196A (en) * 1964-12-30 1966-03-04 Electrical cut-off device
US3743992A (en) * 1972-08-04 1973-07-03 Westinghouse Electric Corp Thermally responsive electrical control device for polyphase currents

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2068374A (en) * 1934-05-26 1937-01-19 Trumbull Electric Mfg Co Thermostatic switch
US2313341A (en) * 1940-02-09 1943-03-09 Honeywell Regulator Co Snap action switch
US2505689A (en) * 1945-03-05 1950-04-25 Jefferson Electric Co Circuit breaker or overload control
US2695524A (en) * 1951-01-05 1954-11-30 Honeywell Regulator Co Alternate action snap mechanism
GB749305A (en) * 1952-03-24 1956-05-23 Sidney Geoffrey Young Improvements relating to snap-action electric switches
US2872548A (en) * 1955-12-01 1959-02-03 Fed Pacific Electric Co Motor starters

Also Published As

Publication number Publication date
GB860861A (en) 1961-02-15
US2952758A (en) 1960-09-13
FR1221454A (en) 1960-06-02
DK105932C (en) 1966-11-28
DE1083413B (en) 1960-06-15

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