GB578650A - Improvements in ambient temperature compensation for thermally-actuated electric switches - Google Patents

Improvements in ambient temperature compensation for thermally-actuated electric switches

Info

Publication number
GB578650A
GB578650A GB1894044A GB1894044A GB578650A GB 578650 A GB578650 A GB 578650A GB 1894044 A GB1894044 A GB 1894044A GB 1894044 A GB1894044 A GB 1894044A GB 578650 A GB578650 A GB 578650A
Authority
GB
United Kingdom
Prior art keywords
ambient temperature
thermally
temperature compensation
electric switches
actuated electric
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
GB1894044A
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.)
Belling and Lee Ltd
Original Assignee
Belling and Lee 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 Belling and Lee Ltd filed Critical Belling and Lee Ltd
Priority to GB1894044A priority Critical patent/GB578650A/en
Publication of GB578650A publication Critical patent/GB578650A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H01H71/162—Electrothermal mechanisms with bimetal element with compensation for ambient temperature

Landscapes

  • Thermally Actuated Switches (AREA)

Abstract

578,650. Thermal switches. BELLING & LEE, Ltd., HEATH, C. W., and JONES, K. J. Oct. 3, 1944, No. 18940. [Class 38 (v)] An ambient temperature compensated thermal switch comprises a bimetal element 1 heated by a winding 4 and co-operating at its free end with a strut 6 engaging a recess in e plunger 9, or which bears the compensating bi metal element 8 On increase ir ambient tempera ture, element 8 pushes the plunger 9 and so increases the force required for element 1 to disengage the fixed contact 7, movement of the latter being limited by stops 14, 16.
GB1894044A 1944-10-03 1944-10-03 Improvements in ambient temperature compensation for thermally-actuated electric switches Expired GB578650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1894044A GB578650A (en) 1944-10-03 1944-10-03 Improvements in ambient temperature compensation for thermally-actuated electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1894044A GB578650A (en) 1944-10-03 1944-10-03 Improvements in ambient temperature compensation for thermally-actuated electric switches

Publications (1)

Publication Number Publication Date
GB578650A true GB578650A (en) 1946-07-05

Family

ID=10121059

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1894044A Expired GB578650A (en) 1944-10-03 1944-10-03 Improvements in ambient temperature compensation for thermally-actuated electric switches

Country Status (1)

Country Link
GB (1) GB578650A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1189616B (en) * 1961-12-15 1965-03-25 Licentia Gmbh Bimetal snap switches, especially starting relays for single-phase induction motors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1189616B (en) * 1961-12-15 1965-03-25 Licentia Gmbh Bimetal snap switches, especially starting relays for single-phase induction motors

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