GB882314A - Improvements in or relating to thermally operated electric switches - Google Patents

Improvements in or relating to thermally operated electric switches

Info

Publication number
GB882314A
GB882314A GB3810558A GB3810558A GB882314A GB 882314 A GB882314 A GB 882314A GB 3810558 A GB3810558 A GB 3810558A GB 3810558 A GB3810558 A GB 3810558A GB 882314 A GB882314 A GB 882314A
Authority
GB
United Kingdom
Prior art keywords
disc
nov
casing
contacts
operates
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
GB3810558A
Inventor
Philip Woodhall
Kenneth Hale
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3810558A priority Critical patent/GB882314A/en
Publication of GB882314A publication Critical patent/GB882314A/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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/58—Means for varying duration of "open" period of shutter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

882,314. Thermal switches. GENERAL ELECTRIC CO. Ltd. Nov. 13, 1959 [Nov. 26, 1958], No. 38105/58. Class 38 (5). A snap - acting bimetal disc 6 acts through a rod 8 on a slave disc 9 carrying a central contact 11 which co-operates with a fixed contact 15, and the periphery of which co-operates with a concentric contact 22. Contacts 15, 22 are mounted in a unitary assembly which is adjustably screwed in a casing 3. When the disc 6 moves down from the position shown the pressure on disc 9 is released and contacts 11, 15 separate, and the edge of disc 9 may slide inwards on to insulation 19. The switch may reset automatically on cooling of the disc 6, or a sleeve encircling the casing may be depressed against spring action to engage tongues on the disc 6 which is thus snapped back again (Complete Figure).
GB3810558A 1958-11-26 1958-11-26 Improvements in or relating to thermally operated electric switches Expired GB882314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3810558A GB882314A (en) 1958-11-26 1958-11-26 Improvements in or relating to thermally operated electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3810558A GB882314A (en) 1958-11-26 1958-11-26 Improvements in or relating to thermally operated electric switches

Publications (1)

Publication Number Publication Date
GB882314A true GB882314A (en) 1961-11-15

Family

ID=10401213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3810558A Expired GB882314A (en) 1958-11-26 1958-11-26 Improvements in or relating to thermally operated electric switches

Country Status (1)

Country Link
GB (1) GB882314A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1490747B1 (en) * 1962-12-29 1972-09-21 Texas Instruments Inc THERMAL SNAP SWITCH
FR2326774A1 (en) * 1975-10-03 1977-04-29 Inter Control Koehler Hermann RESET TEMPERATURE LIMITER
DE3032434A1 (en) * 1980-01-28 1981-07-30 Elmwood Sensors Inc., Cranston, R.I. GROUNDED THERMOSTAT SWITCH

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1490747B1 (en) * 1962-12-29 1972-09-21 Texas Instruments Inc THERMAL SNAP SWITCH
FR2326774A1 (en) * 1975-10-03 1977-04-29 Inter Control Koehler Hermann RESET TEMPERATURE LIMITER
DE3032434A1 (en) * 1980-01-28 1981-07-30 Elmwood Sensors Inc., Cranston, R.I. GROUNDED THERMOSTAT SWITCH

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