GB782235A - Improvements in temperature responsive control devices - Google Patents

Improvements in temperature responsive control devices

Info

Publication number
GB782235A
GB782235A GB30938/55A GB3093855A GB782235A GB 782235 A GB782235 A GB 782235A GB 30938/55 A GB30938/55 A GB 30938/55A GB 3093855 A GB3093855 A GB 3093855A GB 782235 A GB782235 A GB 782235A
Authority
GB
United Kingdom
Prior art keywords
lever
temperature responsive
oct
control devices
responsive control
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
GB30938/55A
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
Original Assignee
General Electric Co
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 filed Critical General Electric Co
Publication of GB782235A publication Critical patent/GB782235A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0202—Switches
    • H05B1/0208—Switches actuated by the expansion or evaporation of a gas or liquid

Landscapes

  • Thermally Actuated Switches (AREA)

Abstract

782,235. Thermal switches. GENERAL ELECTRIC CO. Oct. 28, 1955 [Oct. 29, 1954], No. 30938/55. Class 38 (5). A switch comprises an operating lever 10 movable from a " closed " to an " open " position by temperature responsive means 5 against the bias of a spring 17, the means 5 being preloaded by a member 27 connected to a setting member 37 by a lever 39, the lever ratio of which is adjustable for calibration. As shown, the means 5 is a bellows or diaphragm and bears at 9 on the lever 10 which pivots clockwise about point 15 when the means 5 expands. Contacts 20, 21 are thereby opened, the lever 10 moving up against a stop 25 which prevents spring 17 from moving over-centre. Member 27 is a resilient strip adjustably connected at 42 to the lever 39 which has a threaded portion 46 carrying an adjustable nut 47 engaging a groove 48 in the bar 2. The switch differential is set by adjustment of a screw 19.
GB30938/55A 1954-10-29 1955-10-28 Improvements in temperature responsive control devices Expired GB782235A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US782235XA 1954-10-29 1954-10-29

Publications (1)

Publication Number Publication Date
GB782235A true GB782235A (en) 1957-09-04

Family

ID=22142709

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30938/55A Expired GB782235A (en) 1954-10-29 1955-10-28 Improvements in temperature responsive control devices

Country Status (1)

Country Link
GB (1) GB782235A (en)

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