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GB866597A - Improvements in or relating to electrical switches - Google Patents

Improvements in or relating to electrical switches

Info

Publication number
GB866597A
GB866597A GB16163/57A GB1616357A GB866597A GB 866597 A GB866597 A GB 866597A GB 16163/57 A GB16163/57 A GB 16163/57A GB 1616357 A GB1616357 A GB 1616357A GB 866597 A GB866597 A GB 866597A
Authority
GB
United Kingdom
Prior art keywords
bridging member
contacts
spring
contact
recess
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
GB16163/57A
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of GB866597A publication Critical patent/GB866597A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • 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
    • H01H2037/549—Details of movement transmission between bimetallic snap element and contact

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacture Of Switches (AREA)
  • Thermally Actuated Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Contacts (AREA)

Abstract

866,597. Thermal switches. TEXAS INSTRUMENTS Inc. May 21, 1957 [Aug. 1, 1956], No. 16163/57. Class 38 (5). Upward movement of a bowed metallic disc 38 causes the top 43 of a guided slide 40 to press on the convex surface 44 of a bridging member 20 and open the contacts 17, 18, 21 against the resistance of a spring 30. The spring 30 presses on the bridging member 20 by means of a convex projection 25 on a cop 26 which engages the corners 27 of a depression 24 in the bridging member. This arrangement ensures self-alignment of the contacts not withstanding contact " build-up." The switch casing comprises two portions 46, 47 separated by a continuous recess 49 which is shielded from the contact region by a continuous projection 48. Thus contact particles vaporized by arcing cannot be deposited in the recess 49 and tracking is prevented. Specification 178,103 and U.S.A. Specification 2,071,149 are referred to.
GB16163/57A 1956-08-01 1957-05-21 Improvements in or relating to electrical switches Expired GB866597A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US601501A US2824194A (en) 1956-08-01 1956-08-01 Switch structures

Publications (1)

Publication Number Publication Date
GB866597A true GB866597A (en) 1961-04-26

Family

ID=24407725

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16163/57A Expired GB866597A (en) 1956-08-01 1957-05-21 Improvements in or relating to electrical switches

Country Status (4)

Country Link
US (1) US2824194A (en)
DE (2) DE1088131B (en)
FR (1) FR1175864A (en)
GB (1) GB866597A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038040A (en) * 1957-10-14 1962-06-05 Int Register Co Timing mechanism
US2907851A (en) * 1958-05-21 1959-10-06 Texas Instruments Inc Electrical switch structures
US3091121A (en) * 1958-10-27 1963-05-28 Texas Instruments Inc Thermostatic controls
US3059080A (en) * 1959-09-17 1962-10-16 Penn Controls Flame detector
US3164701A (en) * 1961-05-29 1965-01-05 Texas Instruments Inc Method of assembling thermostatic switches
US3283097A (en) * 1962-06-06 1966-11-01 White Sales Corp Graham Thermo-electric timer
US3258567A (en) * 1964-05-29 1966-06-28 Elmwood Sensors Thermostat and reset therefor
US3268700A (en) * 1964-06-18 1966-08-23 Illinois Tool Works Snap acting trigger switch
US3852697A (en) * 1973-07-11 1974-12-03 Therm O Disc Inc Bimetal snap disc
AT349794B (en) * 1976-06-25 1979-04-25 Electrovac THERMAL SWITCH
US4317100A (en) * 1980-10-29 1982-02-23 Texas Instruments Incorporated Readily mountable thermostat
US4365228A (en) * 1981-04-03 1982-12-21 Robertshaw Controls Company Thermostat construction having a one piece plunger with a wing-like section and method of making the same
IT1179473B (en) * 1984-10-24 1987-09-16 Texas Instruments Italia Spa SINGLE-TEMPERATURE THERMOSTAT WITH BIMETALLIC ELEMENT
IT1187602B (en) * 1985-11-05 1987-12-23 Bruno Martinetti UNIVERSAL SWITCH WITH TABS INTEGRAL CONTACTORS
AT387101B (en) * 1986-12-18 1988-12-12 Electrovac METHOD AND DEVICE FOR ADJUSTING A THERMAL SWITCH
US5629506A (en) * 1994-06-15 1997-05-13 General Electric Company Low voltage AC contactor including high recovery voltage gas system

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1261456A (en) * 1917-06-22 1918-04-02 Hart & Hegeman Mfg Co Switch.
AT105577B (en) * 1925-01-16 1927-02-10 Aeg Union Elek Wien Switchgear.
DE576319C (en) * 1927-10-22 1933-05-10 Siemens Schuckertwerke Akt Ges Switch with arc extinguishing by compressed air
DE596573C (en) * 1928-08-01 1934-05-05 Siemens Schuckertwerke Akt Ges Compressed air switch with multiple interruptions
DE555830C (en) * 1928-09-20 1932-08-01 Sigwart Ruppel Dipl Ing Switch with arc extinguishing by flowing compressed gas
US1988369A (en) * 1931-11-12 1935-01-15 Locke Insulator Corp Radio interferenceproof insulator
US1992923A (en) * 1933-05-22 1935-02-26 Abraham S Pinkus Switch
US2094199A (en) * 1934-07-25 1937-09-28 Gen Motors Corp Switch
DE670720C (en) * 1934-09-06 1939-01-25 Frida Strauss Geb Ruppel Gas switch
US2392342A (en) * 1943-01-18 1946-01-08 Line Material Co Combined spark gap and insulator
US2570610A (en) * 1947-08-23 1951-10-09 Allis Chalmers Mfg Co Gas blast circuit breaker with trap for products of arcing
US2650971A (en) * 1950-06-08 1953-09-01 Allen Bradley Co Electrical switch
US2712580A (en) * 1952-04-26 1955-07-05 Gen Electric Contact making and breaking device
DE1700883U (en) * 1952-06-28 1955-06-23 Kloeckner Moeller Elektrizit CONTACT ARRANGEMENT FOR CIRCUIT BREAKER.
US2714643A (en) * 1952-12-27 1955-08-02 Charles W Mitchell Fire detecting unit
US2753422A (en) * 1953-03-11 1956-07-03 Stevens Mfg Co Inc Thermostatic switch
US2740869A (en) * 1953-07-20 1956-04-03 Jennings Radio Mfg Corp Vacuum switch

Also Published As

Publication number Publication date
US2824194A (en) 1958-02-18
DE1088131B (en) 1960-09-01
FR1175864A (en) 1959-04-02
DE1160528B (en) 1964-01-02

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