GB622594A - Improvements in thermostatic controls - Google Patents

Improvements in thermostatic controls

Info

Publication number
GB622594A
GB622594A GB867747A GB867747A GB622594A GB 622594 A GB622594 A GB 622594A GB 867747 A GB867747 A GB 867747A GB 867747 A GB867747 A GB 867747A GB 622594 A GB622594 A GB 622594A
Authority
GB
United Kingdom
Prior art keywords
switch
ears
temperature
contacts
group xxxvii
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
GB867747A
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.)
JOHN DONALD BOLESKY
Original Assignee
JOHN DONALD BOLESKY
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 JOHN DONALD BOLESKY filed Critical JOHN DONALD BOLESKY
Priority to GB867747A priority Critical patent/GB622594A/en
Publication of GB622594A publication Critical patent/GB622594A/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

Landscapes

  • Thermally Actuated Switches (AREA)

Abstract

622,594. Temperature-responsive actuating-elements. BOLESKY, J. D. March 31, 1947. No. 8677. [Class 64(ii)] [Also in Group XXXVII] A snap-acting bimetallic plate used in a thermal switch (Group XXXVII) has two positions of concavity, the plate moving upon a rise to a predetermined temperature, from its first position, Fig. 3, to its second position, Fig. 4, where it is latched to prevent automatic reclosure of the contacts of the switch as the temperature falls. The bimetallic plate 34 is centrally mounted on a rigid supporting member 32 and though substantially circular has ears or lugs to carry the switch contacts 41, 42. One of the ears is extended to form a slotted upstanding flange 39 which co-operates with a spring-loaded latch member 48.
GB867747A 1947-03-31 1947-03-31 Improvements in thermostatic controls Expired GB622594A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB867747A GB622594A (en) 1947-03-31 1947-03-31 Improvements in thermostatic controls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB867747A GB622594A (en) 1947-03-31 1947-03-31 Improvements in thermostatic controls

Publications (1)

Publication Number Publication Date
GB622594A true GB622594A (en) 1949-05-04

Family

ID=9857088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB867747A Expired GB622594A (en) 1947-03-31 1947-03-31 Improvements in thermostatic controls

Country Status (1)

Country Link
GB (1) GB622594A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683305A (en) * 1970-07-24 1972-08-08 Robert A Gray Protective device for air conditioners

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683305A (en) * 1970-07-24 1972-08-08 Robert A Gray Protective device for air conditioners

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