GB309720A - Improvements in protective arrangements for electrical heating apparatus - Google Patents

Improvements in protective arrangements for electrical heating apparatus

Info

Publication number
GB309720A
GB309720A GB917728A GB917728A GB309720A GB 309720 A GB309720 A GB 309720A GB 917728 A GB917728 A GB 917728A GB 917728 A GB917728 A GB 917728A GB 309720 A GB309720 A GB 309720A
Authority
GB
United Kingdom
Prior art keywords
heating apparatus
electrical heating
protective arrangements
arrangements
protective
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
GB917728A
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.)
Automatic Telephone Manufacturing Co Ltd
Original Assignee
Automatic Telephone Manufacturing Co 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 Automatic Telephone Manufacturing Co Ltd filed Critical Automatic Telephone Manufacturing Co Ltd
Priority to GB917728A priority Critical patent/GB309720A/en
Publication of GB309720A publication Critical patent/GB309720A/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
    • H05B1/0219—Switches actuated by modification of the magnetic properties of a material
GB917728A 1928-03-26 1928-03-26 Improvements in protective arrangements for electrical heating apparatus Expired GB309720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB917728A GB309720A (en) 1928-03-26 1928-03-26 Improvements in protective arrangements for electrical heating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB917728A GB309720A (en) 1928-03-26 1928-03-26 Improvements in protective arrangements for electrical heating apparatus

Publications (1)

Publication Number Publication Date
GB309720A true GB309720A (en) 1929-04-18

Family

ID=9866883

Family Applications (1)

Application Number Title Priority Date Filing Date
GB917728A Expired GB309720A (en) 1928-03-26 1928-03-26 Improvements in protective arrangements for electrical heating apparatus

Country Status (1)

Country Link
GB (1) GB309720A (en)

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