GB505565A - Improvements in or relating to apparatus for use in detecting inflammable gas and/or vapour - Google Patents

Improvements in or relating to apparatus for use in detecting inflammable gas and/or vapour

Info

Publication number
GB505565A
GB505565A GB3102037A GB3102037A GB505565A GB 505565 A GB505565 A GB 505565A GB 3102037 A GB3102037 A GB 3102037A GB 3102037 A GB3102037 A GB 3102037A GB 505565 A GB505565 A GB 505565A
Authority
GB
United Kingdom
Prior art keywords
strips
inflammable
battery
resistance
strip
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
GB3102037A
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.)
HARRY HOLT JUNR
Oldham Crompton Batteries Ltd
Original Assignee
HARRY HOLT JUNR
Oldham Crompton Batteries 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 HARRY HOLT JUNR, Oldham Crompton Batteries Ltd filed Critical HARRY HOLT JUNR
Priority to GB3102037A priority Critical patent/GB505565A/en
Publication of GB505565A publication Critical patent/GB505565A/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 By The Use Of Electric Means (AREA)

Abstract

505,565. Inflammable-gas detectors. OLDHAM & SON, Ltd., and HOLT, JUN., H. Nov. 11, 1937, No. 31020. [Class 1 (i)] Apparatus for detect ing inflammable gases comprises a housing 17 formed on a battery cover, a pair of angularly arranged bimetallic strips 4, 5 in said housing normally contacting with each other and arranged in circuit with a battery 1, lamp 3, and switch 2, a catalytic wire 10 adjacent to one of the strips and a resistance-wire 11 closely wound round the other strip, and a chimney 22 arranged to shield the catalytic strip. Variations in the battery potential affect both strips similarly, but inflammable gas burning on the filament 10 causes the .strips to break contact thus inserting a resistance 13 in the lamp circuit.
GB3102037A 1937-11-11 1937-11-11 Improvements in or relating to apparatus for use in detecting inflammable gas and/or vapour Expired GB505565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3102037A GB505565A (en) 1937-11-11 1937-11-11 Improvements in or relating to apparatus for use in detecting inflammable gas and/or vapour

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3102037A GB505565A (en) 1937-11-11 1937-11-11 Improvements in or relating to apparatus for use in detecting inflammable gas and/or vapour

Publications (1)

Publication Number Publication Date
GB505565A true GB505565A (en) 1939-05-11

Family

ID=10316718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3102037A Expired GB505565A (en) 1937-11-11 1937-11-11 Improvements in or relating to apparatus for use in detecting inflammable gas and/or vapour

Country Status (1)

Country Link
GB (1) GB505565A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422604A (en) * 1943-05-28 1947-06-17 American Gas Ass Gas purity testing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422604A (en) * 1943-05-28 1947-06-17 American Gas Ass Gas purity testing device

Similar Documents

Publication Publication Date Title
GB505565A (en) Improvements in or relating to apparatus for use in detecting inflammable gas and/or vapour
GB521098A (en) Improvements in or relating to apparatus for use in detecting inflammable gas and/orvapour
US1231045A (en) Methane-detector.
NL7611991A (en) GAS AND / OR VAPOR DISCHARGE LAMP.
GB1308532A (en) Face shield for use with an arc welding apparatus
GB693253A (en) Improvements in or relating to electrical testing devices
SU371599A1 (en) SENSOR FOR FLAME IONIZATION SIGNALIZER
GB485121A (en) Improvements in and relating to fire alarm systems
GB549583A (en) Improvements in or relating to gas or vapour detectors for use in mines or other places
GB856866A (en) Improvements in or relating to smoke indicators
GB496566A (en) Improvements in or relating to gas detectors
US1983890A (en) Signal fuse plug
GB298767A (en) Improvements in or relating to apparatus for detecting the presence of inflammable gas
GB352267A (en) An apparatus for detecting and indicating the presence of inflammable gases in air
GB238531A (en) Improvements in means for detecting the presence of methane or other hydrocarbon gases
GB659621A (en) Improvements in or relating to devices for testing for faults in photographic flash bulbs, electric incandescent lamps and the like
GB243526A (en) Improvements in or relating to miners' and like lamps
GB319530A (en) Improvements in or relating to apparatus for indicating the presence of inflammable vapours or gases
GB225081A (en) Improvements in or relating to electric fires
GB295773A (en) Improvements in and relating to miners' and other electric safety lamps
Bukowski et al. Residential Fire/Smoke Detectors
ES292428A1 (en) Combustible gas detector (Machine-translation by Google Translate, not legally binding)
FR1147287A (en) Device for detecting smoke, radioactive gases, flames (or light) and contacts
GB987995A (en) Improvements in or relating to ionization fire alarm system
JPS59125330A (en) Kerosene burner