GB464799A - Improvements in or relating to thermostatically controlled apparatus - Google Patents

Improvements in or relating to thermostatically controlled apparatus

Info

Publication number
GB464799A
GB464799A GB2953235A GB2953235A GB464799A GB 464799 A GB464799 A GB 464799A GB 2953235 A GB2953235 A GB 2953235A GB 2953235 A GB2953235 A GB 2953235A GB 464799 A GB464799 A GB 464799A
Authority
GB
United Kingdom
Prior art keywords
temperature
thermostatically controlled
heat source
maintained
relating
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
GB2953235A
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.)
LOUIS JOHN HEATON ARMSTRONG
STC PLC
Original Assignee
LOUIS JOHN HEATON ARMSTRONG
Standard Telephone and Cables PLC
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 LOUIS JOHN HEATON ARMSTRONG, Standard Telephone and Cables PLC filed Critical LOUIS JOHN HEATON ARMSTRONG
Priority to GB2953235A priority Critical patent/GB464799A/en
Publication of GB464799A publication Critical patent/GB464799A/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
    • G05D23/01—Control of temperature without auxiliary power

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Temperature (AREA)

Abstract

464,799. Automatic control systems. STANDARD TELEPHONES & CABLES, Ltd., and ARMSTRONG, L. J. HEATON-. Oct. 25, 1935, No. 29532. [Class 38 (iv)] Temperature.-When a body to be maintained at constant temperature is placed within a thermostatically controlled chamber of good heat conductivity, the thermometric time lag and the effect of temperature gradient in the space surrounding the body are minimized by placing adjacent to the body heated an auxiliary heat source, small with respect to the main source of heat, and controlled by the thermostatic device. As shown in the Figure the main heat source comprises electric resistances 3. A small portion thereof is placed at 6 under the body 1 which is to have its temperature maintained constant and the thermostatic means 2 controls the supply of current to both. The resistance 6 may be adjusted to give any desired correction for variations in ambient temperature.
GB2953235A 1935-10-25 1935-10-25 Improvements in or relating to thermostatically controlled apparatus Expired GB464799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2953235A GB464799A (en) 1935-10-25 1935-10-25 Improvements in or relating to thermostatically controlled apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2953235A GB464799A (en) 1935-10-25 1935-10-25 Improvements in or relating to thermostatically controlled apparatus

Publications (1)

Publication Number Publication Date
GB464799A true GB464799A (en) 1937-04-26

Family

ID=10293019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2953235A Expired GB464799A (en) 1935-10-25 1935-10-25 Improvements in or relating to thermostatically controlled apparatus

Country Status (1)

Country Link
GB (1) GB464799A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415534A (en) * 1980-10-06 1983-11-15 Radiometer A/S Apparatus for analyzing biological liquids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415534A (en) * 1980-10-06 1983-11-15 Radiometer A/S Apparatus for analyzing biological liquids

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