GB1118166A - Improvements in or relating to temperature responsive devices - Google Patents

Improvements in or relating to temperature responsive devices

Info

Publication number
GB1118166A
GB1118166A GB3907864A GB3907864A GB1118166A GB 1118166 A GB1118166 A GB 1118166A GB 3907864 A GB3907864 A GB 3907864A GB 3907864 A GB3907864 A GB 3907864A GB 1118166 A GB1118166 A GB 1118166A
Authority
GB
United Kingdom
Prior art keywords
glass
glass composition
cao
alumina
per cent
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
GB3907864A
Inventor
Glynne Francis Clifford
Derek Ralph Ashworth
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.)
GRAVANER COLNBROOK Ltd
Original Assignee
GRAVANER COLNBROOK 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 GRAVANER COLNBROOK Ltd filed Critical GRAVANER COLNBROOK Ltd
Priority to GB3907864A priority Critical patent/GB1118166A/en
Priority to CH1241965A priority patent/CH437057A/en
Publication of GB1118166A publication Critical patent/GB1118166A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
    • 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)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Glass Compositions (AREA)

Abstract

An electronically conducting glass composition comprises V2O5 containing up to 50 wt. per cent P2O3 together with CaO to prevent water solubility. CaO may be replaced by other metal oxides. Alternatively the glass composition may be V2O5 containing up to 50 wt. per cent Na or K metaphosphate. Phosphate, borate, germanate and chalkogenate glasses are also mentioned. When used in a temperature sensitive device, the glass composition may have electrodes of differing electro-potential joined thereto e.g. stainless or mild steel, Ni, Mo, Cr, Ti, Cu or alloys thereof with Cr, Mn or Al. In one embodiment the device may take the form of a co-axial cable with the space between the conductors packed with a vanadium glass and alumina, the alumina being present to resist movement of the conductors when the glass is in a fused condition.
GB3907864A 1964-09-25 1964-09-25 Improvements in or relating to temperature responsive devices Expired GB1118166A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3907864A GB1118166A (en) 1964-09-25 1964-09-25 Improvements in or relating to temperature responsive devices
CH1241965A CH437057A (en) 1964-09-25 1965-09-01 Thermosensitive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3907864A GB1118166A (en) 1964-09-25 1964-09-25 Improvements in or relating to temperature responsive devices

Publications (1)

Publication Number Publication Date
GB1118166A true GB1118166A (en) 1968-06-26

Family

ID=10407508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3907864A Expired GB1118166A (en) 1964-09-25 1964-09-25 Improvements in or relating to temperature responsive devices

Country Status (2)

Country Link
CH (1) CH437057A (en)
GB (1) GB1118166A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2327497C3 (en) * 1973-05-30 1981-12-24 Benno 5430 Wettingen Aargau Perren Detector for changes in resistance with a downstream alarm device

Also Published As

Publication number Publication date
CH437057A (en) 1967-05-31

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