GB807704A - Improvements in or relating to electric cutout switches - Google Patents

Improvements in or relating to electric cutout switches

Info

Publication number
GB807704A
GB807704A GB12073/57A GB1207357A GB807704A GB 807704 A GB807704 A GB 807704A GB 12073/57 A GB12073/57 A GB 12073/57A GB 1207357 A GB1207357 A GB 1207357A GB 807704 A GB807704 A GB 807704A
Authority
GB
United Kingdom
Prior art keywords
arm
bimetallic element
recess
spring
movement
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
GB12073/57A
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.)
ELECTRO MECANIQUES SOC ET
Original Assignee
ELECTRO MECANIQUES SOC ET
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 ELECTRO MECANIQUES SOC ET filed Critical ELECTRO MECANIQUES SOC ET
Publication of GB807704A publication Critical patent/GB807704A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/04—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrothermal opening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H01H15/06—Movable parts; Contacts mounted thereon
    • H01H15/10—Operating parts
    • H01H15/102—Operating parts comprising cam devices

Landscapes

  • Thermally Actuated Switches (AREA)

Abstract

807,704. Thermal switches; switches retained set and released mechanically. SOC. D'ETUDES ELECTRO MECANIQUES. April 12, 1957 [April 28, 1956], No. 12073/57. Class 38 (5). A switch comprises a current-responsive bimetallic element 5 with a contact 10 at its free end and carried by a movable member 6 which is tiltable and controlled by a spring-biased slidable member 14, a releasable locking connection occurring between the movable member and the slidable member when the switch is closed. Thus, in the Figure the end of an arm 7 of the member 6, which tilts about pivots indicated at 9, is engaged in a recess 20 in a projection 17 of the member 14. When the actuating knob 16 is manually moved to the right, the arm 7 is released from the recess 20 and the projection 17 engages and moves the other arm 8 of the member 6 to tilt the member 6 and open the contacts 10, 11. Under overload conditions, the bimetallic element reverses its curvature to open the contacts 10, 11 and in doing so releases the pressure acting to maintain the arm 7 in the recess 20 so releasing the slidable member 14 for movement to the right under the action of the spring 19. Should the bimetallic element be of the kind which does not resume its initial shape automatically on cooling, the final movement of the member 14 to the right acting through the arm 8 restores the bimetallic element to its original shape, ready for a manual reclosing operation. This final resetting movement may be effected by the spring 19 or manually. Specification 772,526 is referred to.
GB12073/57A 1956-04-28 1957-04-12 Improvements in or relating to electric cutout switches Expired GB807704A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1099042X 1956-04-28

Publications (1)

Publication Number Publication Date
GB807704A true GB807704A (en) 1959-01-21

Family

ID=9619524

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12073/57A Expired GB807704A (en) 1956-04-28 1957-04-12 Improvements in or relating to electric cutout switches

Country Status (7)

Country Link
US (1) US2856487A (en)
BE (1) BE556706A (en)
CH (1) CH336488A (en)
DE (1) DE1099042B (en)
FR (1) FR1150119A (en)
GB (1) GB807704A (en)
NL (2) NL216475A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177543A (en) * 1985-06-14 1987-01-21 Hsieh Teng Jui Automatic circuit breakers

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135848A (en) * 1960-11-21 1964-06-02 Mechanical Products Inc Convenience outlet and circuit breaker device
US3192346A (en) * 1963-06-03 1965-06-29 Gen Electric Current and temperature snap acting devices
US3246107A (en) * 1963-11-04 1966-04-12 United Carr Inc Non-resetting thermally responsive switch
US3275773A (en) * 1964-04-09 1966-09-27 Grover Products Corp Over-center snap switch
DE3680702D1 (en) * 1985-05-04 1991-09-12 Inter Control Koehler Hermann THERMALLY CONTROLLED ELECTRICAL SWITCHING ELEMENT, IN PARTICULAR TEMPERATURE CONTROLLER OR TEMPERATURE LIMITER.
DE3525093A1 (en) * 1985-07-13 1987-01-22 Inter Control Koehler Hermann Temperature regulator
US5742219A (en) * 1994-04-28 1998-04-21 Siemens Electromechanical Components, Inc. Switchable circuit breaker

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE670790C (en) * 1936-09-23 1939-01-25 Stotz Kontakt Gmbh Thermal self-switch
US2266537A (en) * 1937-02-16 1941-12-16 William B Elmer Snap acting device
US2130368A (en) * 1937-08-21 1938-09-20 Colt S Mfg Co Automatic circuit breaker
DE698284C (en) * 1938-04-05 1940-11-06 Stotz Kontakt Gmbh Thermal self-switch
US2520873A (en) * 1942-10-19 1950-08-29 F A Smith Mfg Company Manually operable thermostatic switch assembly
GB560434A (en) * 1942-12-31 1944-04-04 Frederick Cecil Heayberd Improvements in or relating to bi-metallic electric cut-outs
US2453546A (en) * 1944-10-30 1948-11-09 Metals & Controls Corp Circuit breaker
BE538145A (en) * 1951-06-20
FR1105604A (en) * 1954-05-31 1955-12-06 Advanced electrical switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177543A (en) * 1985-06-14 1987-01-21 Hsieh Teng Jui Automatic circuit breakers

Also Published As

Publication number Publication date
DE1099042B (en) 1961-02-09
US2856487A (en) 1958-10-14
FR1150119A (en) 1958-01-08
NL216475A (en)
BE556706A (en)
NL101850C (en)
CH336488A (en) 1959-02-28

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