GB710363A - Devices for limiting the temperatures of electrically heated elements - Google Patents

Devices for limiting the temperatures of electrically heated elements

Info

Publication number
GB710363A
GB710363A GB1851751A GB1851751A GB710363A GB 710363 A GB710363 A GB 710363A GB 1851751 A GB1851751 A GB 1851751A GB 1851751 A GB1851751 A GB 1851751A GB 710363 A GB710363 A GB 710363A
Authority
GB
United Kingdom
Prior art keywords
temperature
relay
bridge
predetermined
resistance
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
GB1851751A
Inventor
William Arthur Gurney
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber 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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB1851751A priority Critical patent/GB710363A/en
Publication of GB710363A publication Critical patent/GB710363A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • G05D23/2401—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor using a heating element as a sensing element

Abstract

710,363. Automatic temperature control systems. DUNLOP RUBBER CO., Ltd. July 4, 1952 [Aug. 4, 1951], No. 18517/51. Class 38(4) To prevent undue temperature rise of aircraft de-icing equipment when icing conditions disappear, an electric heating element 1, the resistance of which varies with temperature, forms with resistances 3, 4, '5 a bridge network 2 which is supplied from a D.C, or A.C. source e, f through contacts of a relay 6. Relay 6 is momentarily operated at predetermined intervals by cam-operated contacts 8 and if element 1 is below a temperature determined by the setting of resistance 5, unbalanc of bridge 2 energizes a relay 10 to maintain relay 6 energized until element 1 reaches the predetermined temperature to balance the bridge. Thereafter the system functions periodically to restore element 1 to the predetermined temperature. A rectifier 11, necessary when the supply is A.C., also prevents operation of relay 10 if the temperature of element 1 should get above the predetermined value when the supply is D.C.
GB1851751A 1951-08-04 1951-08-04 Devices for limiting the temperatures of electrically heated elements Expired GB710363A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1851751A GB710363A (en) 1951-08-04 1951-08-04 Devices for limiting the temperatures of electrically heated elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1851751A GB710363A (en) 1951-08-04 1951-08-04 Devices for limiting the temperatures of electrically heated elements

Publications (1)

Publication Number Publication Date
GB710363A true GB710363A (en) 1954-06-09

Family

ID=10113793

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1851751A Expired GB710363A (en) 1951-08-04 1951-08-04 Devices for limiting the temperatures of electrically heated elements

Country Status (1)

Country Link
GB (1) GB710363A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1163995B (en) * 1959-06-08 1964-02-27 Siemens Elektrogeraete Gmbh Temperature control device for electric heaters
DE1210099B (en) * 1959-02-04 1966-02-03 Siemens Elektrogeraete Gmbh Control circuit for electric hotplates and similar heaters
DE1295111B (en) * 1964-06-03 1969-05-14 Bayer Ag Process and device for electrical heating and control of the temperature of thin layers
DE3704534C1 (en) * 1987-02-13 1988-10-27 Bert Dr-Ing Kueppers Circuit arrangement for temperature-dependent heating elements
FR2726148A1 (en) * 1994-10-24 1996-04-26 Sextant Avionique Temperature stabilised heating circuit for aircraft deicing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1210099B (en) * 1959-02-04 1966-02-03 Siemens Elektrogeraete Gmbh Control circuit for electric hotplates and similar heaters
DE1163995B (en) * 1959-06-08 1964-02-27 Siemens Elektrogeraete Gmbh Temperature control device for electric heaters
DE1295111B (en) * 1964-06-03 1969-05-14 Bayer Ag Process and device for electrical heating and control of the temperature of thin layers
DE3704534C1 (en) * 1987-02-13 1988-10-27 Bert Dr-Ing Kueppers Circuit arrangement for temperature-dependent heating elements
FR2726148A1 (en) * 1994-10-24 1996-04-26 Sextant Avionique Temperature stabilised heating circuit for aircraft deicing

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