GB1199286A - Self Cancelling Switches - Google Patents

Self Cancelling Switches

Info

Publication number
GB1199286A
GB1199286A GB55692/66A GB5569266A GB1199286A GB 1199286 A GB1199286 A GB 1199286A GB 55692/66 A GB55692/66 A GB 55692/66A GB 5569266 A GB5569266 A GB 5569266A GB 1199286 A GB1199286 A GB 1199286A
Authority
GB
United Kingdom
Prior art keywords
bimetal
spring
arms
open position
catch
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
GB55692/66A
Inventor
William David Holt
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries Ltd
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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB55692/66A priority Critical patent/GB1199286A/en
Priority to US685802A priority patent/US3534313A/en
Priority to DE19671640990 priority patent/DE1640990C/en
Priority to FR131821A priority patent/FR1547089A/en
Priority to ES348654A priority patent/ES348654A1/en
Priority to JP7960267A priority patent/JPS454576B1/ja
Publication of GB1199286A publication Critical patent/GB1199286A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/60—Means for producing snap action
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/30—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action
    • H01H43/301—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material
    • H01H43/302—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material of solid bodies
    • H01H43/304—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material of solid bodies of two bodies expanding or contracting in a different manner, e.g. bimetallic elements

Landscapes

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

Abstract

1,199,286. Electrically released switches. JOSEPH LUCAS (INDUSTRIES) Ltd. 27 Nov., 1967 [13 Dec., 1966], No. 55692/66. Heading H1N. A thermally operable self-cancelling switch includes a plurality of bimetallic elements heated sequentially to determine the overall operating period of the switch. Operating member 15 is biased to the open position shown in Fig. 1, by spring 26 and carries two bimetal arms 28, 29 formed with latches at their lower ends. Arms 28, 29 are in electrical contact with spring 26 through rivet 27 mounting spring 26 and arms 28, 29. Fined contact 21 is formed with two catches 22, 23 on its upper surface. To close the contacts, member 15 is moved clockwise so that the latch on arm 29 latches behind catch 22. The circuit is then completed through fixed contact 19, spring 26, rivet 27, bimetal arm 29 and fixed contact 21. As the current flows, bimetal 29 heats up and bends to one side freeing itself from catch 22 so that spring 26 urges member 15 towards the open position but before the movement is completed, the latch on bimetal 28 engages catch 23 so that the circuit is again completed between the fixed contacts through bimetal 28. Bimetal 28 heats up and bends to one side freeing itself from catch 23 so that spring 26 completes the movement of member 15 to the open position. When the switch is in either of the contacts closed position, the switch can be opened manually by depressing member 15 against the pressure of two springs 18 which support the bearing posts 16 of member 15 to move the latches on bimetal arm 28, 29 below the catches 22, 23 to free bimetal arms 28, 29 and allow spring 26 to pivot member 15 to the open position. In a modification in place of springs 18, bearing posts 16 are supported by a plate hinged at one end and supported by a spring at the other end.
GB55692/66A 1966-12-13 1966-12-13 Self Cancelling Switches Expired GB1199286A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB55692/66A GB1199286A (en) 1966-12-13 1966-12-13 Self Cancelling Switches
US685802A US3534313A (en) 1966-12-13 1967-11-27 Self-cancelling switches
DE19671640990 DE1640990C (en) 1966-12-13 1967-12-12 Automatic switch
FR131821A FR1547089A (en) 1966-12-13 1967-12-12 Automatic opening switch
ES348654A ES348654A1 (en) 1966-12-13 1967-12-12 Self-cancelling switches
JP7960267A JPS454576B1 (en) 1966-12-13 1967-12-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB55692/66A GB1199286A (en) 1966-12-13 1966-12-13 Self Cancelling Switches

Publications (1)

Publication Number Publication Date
GB1199286A true GB1199286A (en) 1970-07-22

Family

ID=10474608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55692/66A Expired GB1199286A (en) 1966-12-13 1966-12-13 Self Cancelling Switches

Country Status (5)

Country Link
US (1) US3534313A (en)
JP (1) JPS454576B1 (en)
ES (1) ES348654A1 (en)
FR (1) FR1547089A (en)
GB (1) GB1199286A (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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6992559B2 (en) * 2003-09-23 2006-01-31 Albert Huang Overload protection switch

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639095A (en) * 1949-09-23 1953-05-19 Amariah H Cubberley Heating control system
DE1191018B (en) * 1961-09-21 1965-04-15 Busch Jaeger Duerener Metall Electric heat switch with adjustable switching sequence of several contacts

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
FR1547089A (en) 1968-11-22
DE1640990A1 (en) 1971-09-16
DE1640990B2 (en) 1972-10-05
ES348654A1 (en) 1969-03-16
JPS454576B1 (en) 1970-02-16
US3534313A (en) 1970-10-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee