GB882215A - Improvements in or relating to temperature control devices - Google Patents

Improvements in or relating to temperature control devices

Info

Publication number
GB882215A
GB882215A GB28746/58A GB2874658A GB882215A GB 882215 A GB882215 A GB 882215A GB 28746/58 A GB28746/58 A GB 28746/58A GB 2874658 A GB2874658 A GB 2874658A GB 882215 A GB882215 A GB 882215A
Authority
GB
United Kingdom
Prior art keywords
resistor
heater
sept
switch
series
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
GB28746/58A
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.)
MARTIN USINES FONDERIE ARTHUR
Original Assignee
MARTIN USINES FONDERIE ARTHUR
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 MARTIN USINES FONDERIE ARTHUR filed Critical MARTIN USINES FONDERIE ARTHUR
Publication of GB882215A publication Critical patent/GB882215A/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)
  • Fixing For Electrophotography (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

882,215. Control systems for heating resistors. USINES & FOUNDERIES A. MARTIN. Sept. 8, 1958 [Sept. 7, 1957; June 24, 1958], No. 28746/58. Class 38 (4). A temperature controller for an electric hotplate controlled by a thermal cycling switch 1, 3-5 has a replaceable negative temperature coefficient resistor 2 in thermal relation with the heater element 10 and in series with the heater 5 of the cycling switch so that as the temperature of the element increases, the resistance of the negative temperature resistor is reduced, hence reducing the average current to the heating element. An additional resistor may be placed in parallel with the heater 5 to adjust its characteristics. In an alternative arrangement a manually adjustable resistor 20 is placed in series with resistor 5, and the element 10 may be in two parts so that one part may be short circuited by a switch 21. Indicator lamps 16, 17 may also be provided.
GB28746/58A 1957-09-07 1958-09-08 Improvements in or relating to temperature control devices Expired GB882215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR882215X 1957-09-07

Publications (1)

Publication Number Publication Date
GB882215A true GB882215A (en) 1961-11-15

Family

ID=9373906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28746/58A Expired GB882215A (en) 1957-09-07 1958-09-08 Improvements in or relating to temperature control devices

Country Status (1)

Country Link
GB (1) GB882215A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134340A (en) * 1983-01-26 1984-08-08 Mekania Verken Ab Apparatus for temperature adjustment of an electrical heating unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134340A (en) * 1983-01-26 1984-08-08 Mekania Verken Ab Apparatus for temperature adjustment of an electrical heating unit

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