GB924577A - Thermal release device for oveload protection - Google Patents

Thermal release device for oveload protection

Info

Publication number
GB924577A
GB924577A GB8239/61A GB823961A GB924577A GB 924577 A GB924577 A GB 924577A GB 8239/61 A GB8239/61 A GB 8239/61A GB 823961 A GB823961 A GB 823961A GB 924577 A GB924577 A GB 924577A
Authority
GB
United Kingdom
Prior art keywords
spindle
release device
march
projecting
oveload
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
GB8239/61A
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.)
Hagglund and Soner AB
Haegglund and Soener AB
Original Assignee
Hagglund and Soner AB
Haegglund and Soener AB
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 Hagglund and Soner AB, Haegglund and Soener AB filed Critical Hagglund and Soner AB
Publication of GB924577A publication Critical patent/GB924577A/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
    • H01H71/161—Electrothermal mechanisms with bimetal element with helically or spirally wound bimetal

Landscapes

  • Thermally Actuated Switches (AREA)
  • Resistance Heating (AREA)

Abstract

924,577. Thermal switches. A.B. HAGGLUND & SONER. March 7, 1961 [March 14, 1960], No. 8239/61. Class 38 (5). [Also in Group XI] An overload release device comprises a bimetal actuating member surrounded on all sides by a rigid body around which an exchangeable heater cartridge is located. The bi-metal is in the form of a helix 36 attached at one end to the surrounding body 28 and at its other end to a spindle 34 projecting from the body through an aperture 32. The end of the spindle is cranked and engages a window 40 in a coupling bar whose end bears on a lever 48 adjustably pivoted at 50 and carrying a contact 54 co-operating with a fixed contact 56. The heater cartridge (see Group XI), is slid over the body 28 and pressed against a conductor 42 by a screw 44 threaded in a further conductor 46. Several similar devices may be mounted side-by-side with their spindle 34 projecting through respective windows 40 in a common bar 18.
GB8239/61A 1960-03-14 1961-03-07 Thermal release device for oveload protection Expired GB924577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE252760 1960-03-14

Publications (1)

Publication Number Publication Date
GB924577A true GB924577A (en) 1963-04-24

Family

ID=20260109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8239/61A Expired GB924577A (en) 1960-03-14 1961-03-07 Thermal release device for oveload protection

Country Status (3)

Country Link
US (1) US3105890A (en)
DE (1) DE1159082B (en)
GB (1) GB924577A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587085A (en) * 1983-08-15 1986-05-06 The United States Of America As Represented By The United States Department Of Energy Nuclear reactor safety device
US6269830B1 (en) 1998-09-28 2001-08-07 Gas Research Institute Extended area thermal activation device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB164728A (en) * 1920-06-09 1922-08-10 Vickers Electrical Co Ltd Improvements relating to protective devices for electric circuits
US1728092A (en) * 1927-03-31 1929-09-10 Monitor Controller Co Thermal relay
US2088443A (en) * 1935-09-18 1937-07-27 Gen Electric Thermal switch
US2300901A (en) * 1940-01-24 1942-11-03 Westinghouse Electric & Mfg Co Thermal overload relay
US2354529A (en) * 1942-06-03 1944-07-25 Edison Inc Thomas A Control device
US2404352A (en) * 1944-01-07 1946-07-23 Westinghouse Electric Corp Thermostatic overload relay

Also Published As

Publication number Publication date
US3105890A (en) 1963-10-01
DE1159082B (en) 1963-12-12

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