GB850983A - Improvements in snap action electric relays - Google Patents

Improvements in snap action electric relays

Info

Publication number
GB850983A
GB850983A GB17224/58A GB1722458A GB850983A GB 850983 A GB850983 A GB 850983A GB 17224/58 A GB17224/58 A GB 17224/58A GB 1722458 A GB1722458 A GB 1722458A GB 850983 A GB850983 A GB 850983A
Authority
GB
United Kingdom
Prior art keywords
vane
diagonal
bracket
terminal
contact
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
GB17224/58A
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.)
Signal Stat Corp
Original Assignee
Signal Stat Corp
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 Signal Stat Corp filed Critical Signal Stat Corp
Publication of GB850983A publication Critical patent/GB850983A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/06—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/06—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts
    • H01H61/066—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts making use of an extensible wire, rod or strips

Landscapes

  • Thermally Actuated Switches (AREA)

Abstract

850,983. Thermal switches. SIGNALSTAT CORPORATION. May 29, 1958 [June 6, 1957], No. 17224/58. Class 38 (5). A snap-action relay comprises a vane 20 of resilient metal having a pair of deformations 21 along one diagonal making it into a shallow inverted vee about the said diagonal, and a metal strip 30 attached to the ends of the said diagonal so as to stress the vane into an erect vee about the other diagonal as shown in Fig. 2. Expansion of strip 30, due to heating by high-resistance wire 35, allows the vane 20 to snap back into the preformed vee condition. The vane 20 is mounted at 28 on a bracket 22 fixed to an insulating base 10 at 23 and connected to terminal 11. A contact 27 on the vane co-operates with a contact 25 insulatingly carried on the bracket 22 and connected to terminal 12. One end of heater wire 35 is connected to terminal 13 via a bracket 31, and the other end is secured to a contact 40 insulatingly mounted on a corner of the vane 20 so as to engage contact 45 connected to terminal 14 by bracket 46. Contacts 25, 27 are normally open and contacts 40, 45 normalled closed (as in Fig. 2), these conditions being reversed with a snap action when strip 30 is heated. Specifications 761,713 and 769,505 are referred to.
GB17224/58A 1957-06-06 1958-05-29 Improvements in snap action electric relays Expired GB850983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US664053A US2907850A (en) 1957-06-06 1957-06-06 Snap action devices

Publications (1)

Publication Number Publication Date
GB850983A true GB850983A (en) 1960-10-12

Family

ID=24664321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17224/58A Expired GB850983A (en) 1957-06-06 1958-05-29 Improvements in snap action electric relays

Country Status (4)

Country Link
US (1) US2907850A (en)
DE (1) DE1286639B (en)
FR (1) FR1196527A (en)
GB (1) GB850983A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019318A (en) * 1960-01-29 1962-01-30 Signal Stat Corp Pull ribbon for snap action vane switch
US3174013A (en) * 1961-08-25 1965-03-16 Tung Sol Electric Inc Bistable thermo-responsive device
GB1113307A (en) * 1966-03-30 1968-05-15 Lucas Industries Ltd Thermally operable flasher units
US3657618A (en) * 1968-08-06 1972-04-18 Nippon Denso Co Windshield washer and wiper

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR823708A (en) * 1936-10-03 1938-01-25 Improvement in thermoelectric relays
US2713045A (en) * 1950-03-21 1955-07-12 Boehringer Sohn Ingelheim Preparation of peptides
GB741933A (en) * 1952-06-20 1955-12-14 Albert Henry Midgley Improvements in or relating to electric hot-wire relay or interruption devices
US2706226A (en) * 1953-08-18 1955-04-12 Signal Stat Corp Snap-action vane
US2712044A (en) * 1953-08-18 1955-06-28 Signal Stat Corp Circuit breaker
US2756304A (en) * 1953-08-18 1956-07-24 Signal Stat Corp Snap-action device
US2737553A (en) * 1955-04-08 1956-03-06 Signal Stat Corp Snap-action vane

Also Published As

Publication number Publication date
FR1196527A (en) 1959-11-24
US2907850A (en) 1959-10-06
DE1286639B (en) 1969-01-09

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