GB138726A - Improved safety control apparatus for steam boilers - Google Patents

Improved safety control apparatus for steam boilers

Info

Publication number
GB138726A
GB138726A GB527219A GB527219A GB138726A GB 138726 A GB138726 A GB 138726A GB 527219 A GB527219 A GB 527219A GB 527219 A GB527219 A GB 527219A GB 138726 A GB138726 A GB 138726A
Authority
GB
United Kingdom
Prior art keywords
piston
valve
steam
pipe
control apparatus
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
GB527219A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB527219A priority Critical patent/GB138726A/en
Publication of GB138726A publication Critical patent/GB138726A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)

Abstract

138,726. Cairns, W. March 3,1919. Indicators, alarm and signal.-A pressure relief valve 10 is operated by a piston 2, which is depressed so as to open the valve when the steam pressure rises sufficiently to open a spring-pressed valve 14 in a pipe 12 connecting the space above the piston to the boiler. The space above the piston is also connected by a pipe 12<a> to a floatoperated valve allowing steam to pass when the water-level falls. A valve 18 in a steam pipe 15 opening below the piston is normally retained on its seat by the steam pressure, and is lifted by a spring when the pressure falls, thus raising the piston and closing the relief valve.
GB527219A 1919-03-03 1919-03-03 Improved safety control apparatus for steam boilers Expired GB138726A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB527219A GB138726A (en) 1919-03-03 1919-03-03 Improved safety control apparatus for steam boilers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB527219A GB138726A (en) 1919-03-03 1919-03-03 Improved safety control apparatus for steam boilers

Publications (1)

Publication Number Publication Date
GB138726A true GB138726A (en) 1920-02-19

Family

ID=9792951

Family Applications (1)

Application Number Title Priority Date Filing Date
GB527219A Expired GB138726A (en) 1919-03-03 1919-03-03 Improved safety control apparatus for steam boilers

Country Status (1)

Country Link
GB (1) GB138726A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915042A (en) * 1955-02-01 1959-12-01 Shafer Valve Co Modulating pilot control responsive to pressure variations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915042A (en) * 1955-02-01 1959-12-01 Shafer Valve Co Modulating pilot control responsive to pressure variations

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