GB624038A - Improvements in and relating to electric switches and circuit breakers - Google Patents

Improvements in and relating to electric switches and circuit breakers

Info

Publication number
GB624038A
GB624038A GB748547A GB748547A GB624038A GB 624038 A GB624038 A GB 624038A GB 748547 A GB748547 A GB 748547A GB 748547 A GB748547 A GB 748547A GB 624038 A GB624038 A GB 624038A
Authority
GB
United Kingdom
Prior art keywords
bimetallic
contact
relating
limb
centre
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
GB748547A
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.)
A E W Ltd
Original Assignee
A E W 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 A E W Ltd filed Critical A E W Ltd
Priority to GB748547A priority Critical patent/GB624038A/en
Publication of GB624038A publication Critical patent/GB624038A/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
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H01H37/5418—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting using cantilevered bimetallic snap elements

Landscapes

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

Abstract

624,038. Thermal switches. WATKINS, B. E., and A. E. W., Ltd. March 18, 1947. No. 7485. [Class 38(v)] A snap-action, thermostatically-operating switch has a moving contact 11 carried by an E-shaped spring, of which the centre limb 1 is bimetallic and fixed at the end 2 and the outer limbs 14 are supported in V-grooves 16 in a vertically adjustable plate 17. This adjustment may be effected through a bimetallic link to compensate for ambient temperature. The fixed contact 5 is mounted on a spring 10 and follows the contact 11 over dead-centre to avoid arcing when the latter contact moves to control the circuit. A bellows or Bourdon tube may operate the switch in place of the bimetallic limb.
GB748547A 1947-03-18 1947-03-18 Improvements in and relating to electric switches and circuit breakers Expired GB624038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB748547A GB624038A (en) 1947-03-18 1947-03-18 Improvements in and relating to electric switches and circuit breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB748547A GB624038A (en) 1947-03-18 1947-03-18 Improvements in and relating to electric switches and circuit breakers

Publications (1)

Publication Number Publication Date
GB624038A true GB624038A (en) 1949-05-26

Family

ID=9834024

Family Applications (1)

Application Number Title Priority Date Filing Date
GB748547A Expired GB624038A (en) 1947-03-18 1947-03-18 Improvements in and relating to electric switches and circuit breakers

Country Status (1)

Country Link
GB (1) GB624038A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876311A (en) * 1956-07-19 1959-03-03 Ellenberger Jakob Bimetallic circuit breakers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876311A (en) * 1956-07-19 1959-03-03 Ellenberger Jakob Bimetallic circuit breakers

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