GB424953A - Improvements in measuring or indicating apparatus based on the expansion of a metal wire - Google Patents

Improvements in measuring or indicating apparatus based on the expansion of a metal wire

Info

Publication number
GB424953A
GB424953A GB1558933A GB1558933A GB424953A GB 424953 A GB424953 A GB 424953A GB 1558933 A GB1558933 A GB 1558933A GB 1558933 A GB1558933 A GB 1558933A GB 424953 A GB424953 A GB 424953A
Authority
GB
United Kingdom
Prior art keywords
wire
measuring
expansion
indicating
metal wire
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
GB1558933A
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.)
JULES GASTON DALEZ
Original Assignee
JULES GASTON DALEZ
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
Priority to FR757981D priority Critical patent/FR757981A/fr
Priority to BE389595D priority patent/BE389595A/xx
Application filed by JULES GASTON DALEZ filed Critical JULES GASTON DALEZ
Priority to GB1558933A priority patent/GB424953A/en
Publication of GB424953A publication Critical patent/GB424953A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
    • G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
    • G01N25/28—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly
    • G01N25/34—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using mechanical temperature-responsive elements, e.g. bimetallic
    • G01N25/36—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using mechanical temperature-responsive elements, e.g. bimetallic for investigating the composition of gas mixtures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

<PICT:0424953/III/1> In indicating or measuring devices depending on the thermal expansion of a heated wire resulting from the combustion of inflammable gases, the wire is subjected to tension at two points A and B. The latter force takes up the extension due to the heating of the wire by the electric current; it is preferably applied at the end of the wire by means of an electromagnet h or a spring, and the movement is limited to the amount of extension produced by the heating current. The other tension, preferably applied transversely at the middle of the wire, takes up the further expansion due to the presence of combustible gas, and operates an indicating or measuring device.
GB1558933A 1933-05-30 1933-05-30 Improvements in measuring or indicating apparatus based on the expansion of a metal wire Expired GB424953A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR757981D FR757981A (en) 1933-05-30
BE389595D BE389595A (en) 1933-05-30
GB1558933A GB424953A (en) 1933-05-30 1933-05-30 Improvements in measuring or indicating apparatus based on the expansion of a metal wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1558933A GB424953A (en) 1933-05-30 1933-05-30 Improvements in measuring or indicating apparatus based on the expansion of a metal wire

Publications (1)

Publication Number Publication Date
GB424953A true GB424953A (en) 1935-03-04

Family

ID=10061825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1558933A Expired GB424953A (en) 1933-05-30 1933-05-30 Improvements in measuring or indicating apparatus based on the expansion of a metal wire

Country Status (3)

Country Link
BE (1) BE389595A (en)
FR (1) FR757981A (en)
GB (1) GB424953A (en)

Also Published As

Publication number Publication date
FR757981A (en) 1934-01-05
BE389595A (en)

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