GB860861A - Thermally operated electric circuit breaker - Google Patents

Thermally operated electric circuit breaker

Info

Publication number
GB860861A
GB860861A GB10224/59A GB1022459A GB860861A GB 860861 A GB860861 A GB 860861A GB 10224/59 A GB10224/59 A GB 10224/59A GB 1022459 A GB1022459 A GB 1022459A GB 860861 A GB860861 A GB 860861A
Authority
GB
United Kingdom
Prior art keywords
bimetal
switch
rocker
screw
thermal 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
GB10224/59A
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.)
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
Application filed by Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Priority claimed from DEE18401A external-priority patent/DE1114911B/en
Publication of GB860861A publication Critical patent/GB860861A/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

860,861. Thermal switches. ELLENBERGER & POENSGEN G.m.b.H. March 24, 1959 [April 23, 1958], No. 10224/59. Class 38 (5). A switch operated by a bimetal 13 has a snap-action through a rocker 20 freely pivoted on the end 16 of the bimetal and the end 6 of the spring carrying the moving contact 7. A screw 11 sets the operating temperature. A latch 24 may be provided to prevent the switch closing when the bimetal cools, a manual release button 28 being provided. The switch normally closes when the bimetal cools, a variable time lag being controlled by a brake member 31 engaging an abutment 33 adjusted by a screw 35. The member 31 is spring-loaded so as not to delay the breaking action. Thermal element 13 is shown with a heating coil in series with it but the coil may be omitted. In a further construction the thermal element is exposed to ambient temperature, e.g. in a motor casing, a perforated cover on the switch permitting air circulation. Three such members having a common, elongated, rocker and a single brake and catch mechanism may be used as a three-phase relay and such a construction is disclosed.
GB10224/59A 1958-04-23 1959-03-24 Thermally operated electric circuit breaker Expired GB860861A (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
GB860861A true GB860861A (en) 1961-02-15

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 After (1)

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

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
GB898533A (en) 1962-06-14
DE1083413B (en) 1960-06-15
US2952758A (en) 1960-09-13
DK105932C (en) 1966-11-28
FR1221454A (en) 1960-06-02

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