GB424347A - Improvements in and relating to temperature regulators - Google Patents

Improvements in and relating to temperature regulators

Info

Publication number
GB424347A
GB424347A GB23871/33A GB2387133A GB424347A GB 424347 A GB424347 A GB 424347A GB 23871/33 A GB23871/33 A GB 23871/33A GB 2387133 A GB2387133 A GB 2387133A GB 424347 A GB424347 A GB 424347A
Authority
GB
United Kingdom
Prior art keywords
heater
temperature
heaters
heat
aug
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
GB23871/33A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB424347A publication Critical patent/GB424347A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/19Control of temperature characterised by the use of electric means
    • G05D23/30Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Control Of Temperature (AREA)

Abstract

424,347. Thermal switches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl- Ufer, Berlin) Aug. 28, 1933, No. 23871. Convention date, Aug. 27, 1932. [Class 38 (v)] [See also Group XIII] In a device for regulating the temperature at which a thermostatically controlled electric heater 2 is maintained, a bimetallic strip 4 is provided with an additional heater 11 which is connected to one of a series of tappings on the main heater 2. The temperature of the heated space 1 at which the contacts 5, 6 open is determined by the heat received by the strip 4 from the two heaters 2, 11 and may thus be varied by varying the heat supplied by the heater 11. In a modification, Fig. 2, not shown, the heater 11 may be supplied from an independent source, which may be regulated by a variable resistance at a distance. In another modification, Fig. 3, not shown, three separate heaters are provided in the space to be heated, the thermal switch being mainly influenced by one of the heaters which is variable. Other heat-sensitive elements employing the expansion or vaporization of liquids may be used, and the temperature may be controlled in other ways e.g. by moving a furnace door by means of an auxiliary motor. The apparatus may also be used to indicate when a predetermined temperature is exceeded.
GB23871/33A 1932-08-27 1933-08-28 Improvements in and relating to temperature regulators Expired GB424347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE424347X 1932-08-27

Publications (1)

Publication Number Publication Date
GB424347A true GB424347A (en) 1935-02-20

Family

ID=6476108

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23871/33A Expired GB424347A (en) 1932-08-27 1933-08-28 Improvements in and relating to temperature regulators

Country Status (1)

Country Link
GB (1) GB424347A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741916C (en) * 1940-07-20 1943-11-19 Vdo Tachometer A G Measuring device with a measuring instrument showing the mean value

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741916C (en) * 1940-07-20 1943-11-19 Vdo Tachometer A G Measuring device with a measuring instrument showing the mean value

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