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GB537155A - Improvements in or relating to apparatus for controlling temperatures - Google Patents

Improvements in or relating to apparatus for controlling temperatures

Info

Publication number
GB537155A
GB537155A GB557240A GB557240A GB537155A GB 537155 A GB537155 A GB 537155A GB 557240 A GB557240 A GB 557240A GB 557240 A GB557240 A GB 557240A GB 537155 A GB537155 A GB 537155A
Authority
GB
United Kingdom
Prior art keywords
nitrate
potassium
electrodes
mixture
temperature
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
GB557240A
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.)
CHARLES HENRY MARPLES
Original Assignee
CHARLES HENRY MARPLES
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 CHARLES HENRY MARPLES filed Critical CHARLES HENRY MARPLES
Priority to GB557240A priority Critical patent/GB537155A/en
Publication of GB537155A publication Critical patent/GB537155A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/06—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using melting, freezing, or softening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Fuses (AREA)

Abstract

537,155. Temperature-variable resistances. BERRY, A. E., and MARPLES, C. H. March 28, 1940, No. 5572. [Class 37] ln a device for controlling the temperature of furnaces . &c. a fusible salt 5 which is a non- conductor of electricity when in its solid state fuses when heated and becomes conducting thereby closing a circuit between electrodes 3, 8 which may operate relays to cut off the heating. Suitable salts to use are a mixture of sodium nitrate with potassium nitrate or barium nitrate, potassium sulphate, sodium chloride, or a mixture of sodium chloride and potassium chloride. Suitable choice of these would produce maintaining temperatures of from 290‹C. to 1060‹C. For the higher temperatures the electrodes are preferably of platinum and are mounted in a vessel of silica, Fig. 2 (not shown).
GB557240A 1940-03-28 1940-03-28 Improvements in or relating to apparatus for controlling temperatures Expired GB537155A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB557240A GB537155A (en) 1940-03-28 1940-03-28 Improvements in or relating to apparatus for controlling temperatures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB557240A GB537155A (en) 1940-03-28 1940-03-28 Improvements in or relating to apparatus for controlling temperatures

Publications (1)

Publication Number Publication Date
GB537155A true GB537155A (en) 1941-06-11

Family

ID=9798635

Family Applications (1)

Application Number Title Priority Date Filing Date
GB557240A Expired GB537155A (en) 1940-03-28 1940-03-28 Improvements in or relating to apparatus for controlling temperatures

Country Status (1)

Country Link
GB (1) GB537155A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487526A (en) * 1947-04-14 1949-11-08 Lockheed Aircraft Corp Electric fire detector
US2543177A (en) * 1948-09-23 1951-02-27 Arco Mfg Company Electric temperature device
US2546415A (en) * 1945-12-03 1951-03-27 Power Jets Res & Dev Ltd Circumferentially arranged temperature device in jet pipe of combustion turbine
US2686245A (en) * 1945-05-24 1954-08-10 Hays Corp Bridge resistor construction
US3017592A (en) * 1959-06-25 1962-01-16 Honeywell Regulator Co Condition responsive apparatus
US3064222A (en) * 1959-08-12 1962-11-13 Honeywell Regulator Co Electrical resistor
US3105229A (en) * 1958-12-08 1963-09-24 Sturm Justin Temperature sensing device
US3225320A (en) * 1962-12-19 1965-12-21 Honeywell Inc Temperature-sensitive elements
US3271584A (en) * 1961-06-21 1966-09-06 Energy Conversion Devices Inc Resistance switches and the like
DE3937194A1 (en) * 1988-11-10 1990-05-17 Ingersoll Rand Co HIGH TEMPERATURE FLUID SENSOR

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686245A (en) * 1945-05-24 1954-08-10 Hays Corp Bridge resistor construction
US2546415A (en) * 1945-12-03 1951-03-27 Power Jets Res & Dev Ltd Circumferentially arranged temperature device in jet pipe of combustion turbine
US2487526A (en) * 1947-04-14 1949-11-08 Lockheed Aircraft Corp Electric fire detector
US2543177A (en) * 1948-09-23 1951-02-27 Arco Mfg Company Electric temperature device
US3105229A (en) * 1958-12-08 1963-09-24 Sturm Justin Temperature sensing device
US3017592A (en) * 1959-06-25 1962-01-16 Honeywell Regulator Co Condition responsive apparatus
US3064222A (en) * 1959-08-12 1962-11-13 Honeywell Regulator Co Electrical resistor
US3271584A (en) * 1961-06-21 1966-09-06 Energy Conversion Devices Inc Resistance switches and the like
US3225320A (en) * 1962-12-19 1965-12-21 Honeywell Inc Temperature-sensitive elements
DE3937194A1 (en) * 1988-11-10 1990-05-17 Ingersoll Rand Co HIGH TEMPERATURE FLUID SENSOR

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