GB423225A - Improvements in and relating to thermostatic electric switches - Google Patents

Improvements in and relating to thermostatic electric switches

Info

Publication number
GB423225A
GB423225A GB20604/34A GB2060434A GB423225A GB 423225 A GB423225 A GB 423225A GB 20604/34 A GB20604/34 A GB 20604/34A GB 2060434 A GB2060434 A GB 2060434A GB 423225 A GB423225 A GB 423225A
Authority
GB
United Kingdom
Prior art keywords
contacts
elements
stop
thermal
july
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
GB20604/34A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB423225A publication Critical patent/GB423225A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00Thermally-actuated switches
    • H01H37/02Details
    • H01H37/32Thermally-sensitive members
    • H01H37/52Thermally-sensitive members actuated due to deflection of bimetallic element

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

423,225. Thermal switches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. July 13, 1934, No. 20604. Convention date, July 13, 1933. [Class 38 (v)] A thermal switch which may be heated by current passing through its thermal elements or by variations of surrounding temperature comprises two bimetallic or like elements 3, 4, carrying co-operating contacts 1, 2 on their free ends, both elements being thermally deformable in the same direction and subject to the same heating and the movement of one contact, being arrested by an adjustable stop 9 at a preselected temperature, the arrangement being such that pressure between the contacts is increased until the moment when the stop is encountered. In the form shown, with rise of temperature the contacts 1, 2 move upwards together till the strip 3 encounters the stop 9 and further movement of the strip 4 separates the contacts.
GB20604/34A 1933-07-13 1934-07-13 Improvements in and relating to thermostatic electric switches Expired GB423225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR771685T 1933-07-13

Publications (1)

Publication Number Publication Date
GB423225A true GB423225A (en) 1935-01-28

Family

ID=9191571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20604/34A Expired GB423225A (en) 1933-07-13 1934-07-13 Improvements in and relating to thermostatic electric switches

Country Status (2)

Country Link
FR (1) FR771685A (en)
GB (1) GB423225A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017686B (en) * 1951-01-12 1957-10-17 Richards Morphy N I Ltd Thermally operated electrical switch
US3061699A (en) * 1959-03-16 1962-10-30 Texas Instruments Inc Thermostatic switch
US3164699A (en) * 1961-10-17 1965-01-05 Essex Wire Corp Starting and overload control for motors

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB354822I5 (en) * 1956-07-19

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017686B (en) * 1951-01-12 1957-10-17 Richards Morphy N I Ltd Thermally operated electrical switch
US3061699A (en) * 1959-03-16 1962-10-30 Texas Instruments Inc Thermostatic switch
US3164699A (en) * 1961-10-17 1965-01-05 Essex Wire Corp Starting and overload control for motors

Also Published As

Publication number Publication date
FR771685A (en) 1934-10-13

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