GB710560A - Improvements relating to control systems for electric heaters - Google Patents

Improvements relating to control systems for electric heaters

Info

Publication number
GB710560A
GB710560A GB19830/53A GB1983053A GB710560A GB 710560 A GB710560 A GB 710560A GB 19830/53 A GB19830/53 A GB 19830/53A GB 1983053 A GB1983053 A GB 1983053A GB 710560 A GB710560 A GB 710560A
Authority
GB
United Kingdom
Prior art keywords
temperature
heater
control
resistor
june
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
GB19830/53A
Inventor
Denis Sydney Panisset
Thomas Dalziel
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.)
Simplex Electric Co Ltd
Original Assignee
Simplex Electric 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 Simplex Electric Co Ltd filed Critical Simplex Electric Co Ltd
Priority to GB15848/50A priority Critical patent/GB710491A/en
Priority to GB19830/53A priority patent/GB710560A/en
Publication of GB710560A publication Critical patent/GB710560A/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
    • 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
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1913—Control of temperature characterised by the use of electric means using an analogue comparing device delivering a series of pulses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Temperature (AREA)
  • Control Of Resistance Heating (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

710,560. Automatic temperature control. SIMPLEX ELECTRIC CO., Ltd. June 21, 1951 [June 26, 1950], No. 19830/53. Divided out of 710,491. Class 38(4) A heating element 9 is controlled by a thermally acuated bimetal switch 12, 15 having its actuating (heater) coil 16 energized from the voltage drop across a temperature - sensitiveresistor 13 associated with the heater and connected in series with a ballast resistor 10 which may act as a heater as shown, or be external to the heating element. The actuating coil circuit is also interrupted by the switch contacts so that the system cycles providing variable "On"/"Off" type of control. Modifications: (i) in the temperature-sensitive-resistor may form one arm of a bridge circuit, Fig. 2 (not shown); (ii) a second temperature-sensitive resistor may be arranged to control the heater of a second bimetallic element to provide purely thermostatic control, i.e. not connected over the switch contactor, when a predetermined maximum temperature is reached, Fig. 3 (not shown).
GB19830/53A 1950-06-26 1950-06-26 Improvements relating to control systems for electric heaters Expired GB710560A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB15848/50A GB710491A (en) 1950-06-26 1950-06-26 A new or improved system for controlling the temperature of electric and other heaters
GB19830/53A GB710560A (en) 1950-06-26 1950-06-26 Improvements relating to control systems for electric heaters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB15848/50A GB710491A (en) 1950-06-26 1950-06-26 A new or improved system for controlling the temperature of electric and other heaters
GB19830/53A GB710560A (en) 1950-06-26 1950-06-26 Improvements relating to control systems for electric heaters

Publications (1)

Publication Number Publication Date
GB710560A true GB710560A (en) 1954-06-16

Family

ID=62529291

Family Applications (2)

Application Number Title Priority Date Filing Date
GB19830/53A Expired GB710560A (en) 1950-06-26 1950-06-26 Improvements relating to control systems for electric heaters
GB15848/50A Expired GB710491A (en) 1950-06-26 1950-06-26 A new or improved system for controlling the temperature of electric and other heaters

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB15848/50A Expired GB710491A (en) 1950-06-26 1950-06-26 A new or improved system for controlling the temperature of electric and other heaters

Country Status (1)

Country Link
GB (2) GB710560A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243294B (en) * 1957-10-15 1967-06-29 Siemens Elektrogeraete Gmbh Device for regulating the generation of heat on electrical heaters

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1125093B (en) * 1956-10-29 1962-03-08 Licentia Gmbh Control device for electric hotplates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243294B (en) * 1957-10-15 1967-06-29 Siemens Elektrogeraete Gmbh Device for regulating the generation of heat on electrical heaters

Also Published As

Publication number Publication date
GB710491A (en) 1954-06-16

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