GB822130A - Overload electric switch with ambient temperature compensation - Google Patents

Overload electric switch with ambient temperature compensation

Info

Publication number
GB822130A
GB822130A GB39832/57A GB3983257A GB822130A GB 822130 A GB822130 A GB 822130A GB 39832/57 A GB39832/57 A GB 39832/57A GB 3983257 A GB3983257 A GB 3983257A GB 822130 A GB822130 A GB 822130A
Authority
GB
United Kingdom
Prior art keywords
ambient temperature
temperature compensation
electric switch
strip
overload 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
GB39832/57A
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.)
ARROW ELECTRIC SWITCHES Ltd
Original Assignee
ARROW ELECTRIC SWITCHES 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 ARROW ELECTRIC SWITCHES Ltd filed Critical ARROW ELECTRIC SWITCHES Ltd
Publication of GB822130A publication Critical patent/GB822130A/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

822,130. Thermal switches. ARROW ELECTRIC SWITCHES Ltd. Dec. 23, 1957 [Jan. 4, 1957], No. 39832/57. Class 38 (5). The operating bi-metallic strip 16 of a switch as disclosed in Specification 557,543 is compensated for ambient temperature variations by being pivoted at 82 and coupled by a bar 85 to an identical bi-metallic strip 80 pivoted at 84 in the bottom of the casing. Screw 87 holds one end of strip 80 such that a change in ambient temperature produces an angular movement about pivot 84 which is communicated to the main strip 16. Screw 87 also provides a fine adjustment of the current at which the switch operates.
GB39832/57A 1957-01-04 1957-12-23 Overload electric switch with ambient temperature compensation Expired GB822130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US632460A US2908786A (en) 1957-01-04 1957-01-04 Overload relay switch with ambient temperature compensation

Publications (1)

Publication Number Publication Date
GB822130A true GB822130A (en) 1959-10-21

Family

ID=24535612

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39832/57A Expired GB822130A (en) 1957-01-04 1957-12-23 Overload electric switch with ambient temperature compensation

Country Status (2)

Country Link
US (1) US2908786A (en)
GB (1) GB822130A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB846937A (en) * 1957-09-16 1960-09-07 Crabtree & Co Ltd J A Improvements in thermal overload protection devices for motor starting switches
US2942081A (en) * 1958-02-13 1960-06-21 Westinghouse Electric Corp Thermal overload relay
US3015007A (en) * 1959-11-19 1961-12-26 Gen Electric Canada Thermal device
US3101397A (en) * 1960-11-09 1963-08-20 Fed Pacific Electric Co Thermal overload relay
US3138684A (en) * 1961-04-10 1964-06-23 Albert E Baak Bimetallic furnace blower controller switch
US3152235A (en) * 1961-06-09 1964-10-06 Furnas Electric Co Bi-metallic overload relay having snap switch toggle action
US3184571A (en) * 1962-01-22 1965-05-18 G V Controls Inc Thermostat having motion amplification and shock resistance
US3257526A (en) * 1962-06-21 1966-06-21 Westinghouse Electric Corp Control device with improved thermal operating means
US3213243A (en) * 1962-06-21 1965-10-19 Westinghouse Electric Corp Thermal overload relay with reset means
US3222481A (en) * 1963-04-10 1965-12-07 Ranco Inc Electrically powered bistable thermal relay switch
US3361882A (en) * 1965-10-24 1968-01-02 Texas Instruments Inc Circuit breaker having a compensating element which compensates for ambient temperature without displacing the catch attached thereto
US3694787A (en) * 1971-05-06 1972-09-26 Penn Controls Time proportioning electrical control device
FR2669144B1 (en) * 1990-11-08 1995-02-10 Telemecanique ASSEMBLY OF A BILAME FOR A CURRENT SWITCHING APPARATUS AND A PART SERVING AS A SUPPORT FOR THE BILAME.
CN104733261B (en) * 2015-03-23 2017-11-28 厦门宏发开关设备有限公司 A kind of thermal compensation structure of electrical apparatus release
CN110211840B (en) * 2019-07-04 2024-02-02 上海新远仪表厂有限公司 Electrical contact

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1784450A (en) * 1926-02-25 1930-12-09 Klahn Emil Mechanical movement
US2041511A (en) * 1932-06-18 1936-05-19 Gen Motors Corp Refrigerating apparatus
GB436010A (en) * 1934-04-09 1935-10-03 Ellison George Ltd Improvements in thermally-released automatic electric circuit-breakers
US2171895A (en) * 1937-02-23 1939-09-05 Mcgraw Electric Co Compensated bimetal thermostat
US2235337A (en) * 1939-09-11 1941-03-18 Penn Electric Switch Co Safety switch
US2416170A (en) * 1942-09-15 1947-02-18 Westinghouse Electric Corp Circuit breaker
US2392498A (en) * 1944-03-22 1946-01-08 Mcgraw Electric Co Thermal retarder
US2863023A (en) * 1956-01-27 1958-12-02 Gen Electric Bimetallic strip thermally responsive device

Also Published As

Publication number Publication date
US2908786A (en) 1959-10-13

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