GB1253027A - - Google Patents

Info

Publication number
GB1253027A
GB1253027A GB1253027DA GB1253027A GB 1253027 A GB1253027 A GB 1253027A GB 1253027D A GB1253027D A GB 1253027DA GB 1253027 A GB1253027 A GB 1253027A
Authority
GB
United Kingdom
Prior art keywords
actuator
spring
loading
lever
supplementary
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
Other languages
English (en)
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 filed Critical
Publication of GB1253027A publication Critical patent/GB1253027A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
    • 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
    • F22B37/44—Applications, arrangements or dispositions of alarm or automatic safety devices of safety valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid-Pressure Circuits (AREA)
GB1253027D 1967-09-19 1967-09-19 Expired GB1253027A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4250867 1967-09-19

Publications (1)

Publication Number Publication Date
GB1253027A true GB1253027A (enrdf_load_stackoverflow) 1971-11-10

Family

ID=10424743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1253027D Expired GB1253027A (enrdf_load_stackoverflow) 1967-09-19 1967-09-19

Country Status (1)

Country Link
GB (1) GB1253027A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981003688A1 (en) * 1980-06-13 1981-12-24 Crosby Valve & Eng Co Ltd Fluid pressure relief system actuator
GB2118330A (en) * 1982-04-07 1983-10-26 Sarasin & Cie Ets Method of and device for closing a safety servo valve
GB2118329A (en) * 1982-04-08 1983-10-26 Leonard William Lamburn Improved pneumatically assisted relief or safety valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981003688A1 (en) * 1980-06-13 1981-12-24 Crosby Valve & Eng Co Ltd Fluid pressure relief system actuator
US4463776A (en) * 1980-06-13 1984-08-07 Crosby Valve And Engineering Company, Limited Fluid pressure relief system actuator
GB2118330A (en) * 1982-04-07 1983-10-26 Sarasin & Cie Ets Method of and device for closing a safety servo valve
GB2118329A (en) * 1982-04-08 1983-10-26 Leonard William Lamburn Improved pneumatically assisted relief or safety valve

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years