GB876029A - Improvements relating to safety cut-off valves - Google Patents

Improvements relating to safety cut-off valves

Info

Publication number
GB876029A
GB876029A GB4057158A GB4057158A GB876029A GB 876029 A GB876029 A GB 876029A GB 4057158 A GB4057158 A GB 4057158A GB 4057158 A GB4057158 A GB 4057158A GB 876029 A GB876029 A GB 876029A
Authority
GB
United Kingdom
Prior art keywords
push
rod
spring
bush
close
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
GB4057158A
Inventor
Patrick Herbert Burke
Leonard Albert Sheppard
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.)
Gas Council
Original Assignee
Gas Council
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 Gas Council filed Critical Gas Council
Priority to GB4057158A priority Critical patent/GB876029A/en
Publication of GB876029A publication Critical patent/GB876029A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00—Pilot flame igniters
    • F23Q9/08—Pilot flame igniters with interlock with main fuel supply
    • F23Q9/12—Pilot flame igniters with interlock with main fuel supply to permit the supply to the main burner in dependence upon existence of pilot flame
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/04—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using bimetallic elements
    • F23N5/047—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using bimetallic elements using mechanical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Taps Or Cocks (AREA)

Abstract

876,029. Valves. GAS COUNCIL. Feb. 2, 1960 [Dec. 16, 1958], No. 40571/58. Class 135. In a safety cut-off valve for gas burners in which a spring-closed valve member 7 is opened and held open by a bi-metal strip 14 acting through a push-rod 15 the possibility of the valve failing to close due to dirt &c. where the push - rod passes through a close-fitting bore in the housing is avoided by the provision of a bush 16 which is a close fit on the push-rod to prevent leakage and is urged by a spring 18 into engagement with the end of a fixed bush 19 which has substantial clearance around the push-rod. The spring 18 is weaker than the spring 9 so that should the bush seize on the push-rod it can be carried upwardly to allow the valve to close. Any leakage past the bush 16 escapes at 12a where it is ignited.
GB4057158A 1958-12-16 1958-12-16 Improvements relating to safety cut-off valves Expired GB876029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4057158A GB876029A (en) 1958-12-16 1958-12-16 Improvements relating to safety cut-off valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4057158A GB876029A (en) 1958-12-16 1958-12-16 Improvements relating to safety cut-off valves

Publications (1)

Publication Number Publication Date
GB876029A true GB876029A (en) 1961-08-30

Family

ID=10415559

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4057158A Expired GB876029A (en) 1958-12-16 1958-12-16 Improvements relating to safety cut-off valves

Country Status (1)

Country Link
GB (1) GB876029A (en)

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