GB309561A - Improvements relating to safety valves controlled by a pilot valve - Google Patents

Improvements relating to safety valves controlled by a pilot valve

Info

Publication number
GB309561A
GB309561A GB15130/28A GB1513028A GB309561A GB 309561 A GB309561 A GB 309561A GB 15130/28 A GB15130/28 A GB 15130/28A GB 1513028 A GB1513028 A GB 1513028A GB 309561 A GB309561 A GB 309561A
Authority
GB
United Kingdom
Prior art keywords
valve
spring
cover
abutment
loading
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
GB15130/28A
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 Cocard SA Des Est
Original Assignee
Jules Cocard SA Des Est
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 Jules Cocard SA Des Est filed Critical Jules Cocard SA Des Est
Publication of GB309561A publication Critical patent/GB309561A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

309,561. Soc. Anon. des Etablissements J. Cocard. April 14, 1928, [Convention date]. Valves controlled by pilot or relay valves; protecting covers.-A safety-valve having a main valve actuated by fluid pressure under the control of an auxiliary valve has the auxiliary valve provided with a cover or covers adapted to protect the valve member against the lodgement of dirt and the loading spring against the action of the escaping steam. The auxiliary valve 8 is lifted to exhaust the main actuating chamber by pressure admitted through a passage 2 and strainer 2a acting on piston 9. The piston normally rests on a stop 18 and is coupled to the valve member by a rod 20. The protecting cover 33 is slidably mounted on the loading spindle 31 and normally rests on a shoulder in the casing. When the valve is lifted the escaping steam forces the cover against a perforated ring 35 to seal the spring chamber. The loading spring 11 is arranged between an adjustable abutment 28 mounted on a screwed boss 29 and a hollow movable abutment 27. The casing lever 22 is loaded by a spring 24 and engages an eye 25 on a spindle 26 having a lost motion engagement with the abutment 27. Specification 251,925 is referred to.
GB15130/28A 1928-04-14 1928-05-23 Improvements relating to safety valves controlled by a pilot valve Expired GB309561A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR309561X 1928-04-14

Publications (1)

Publication Number Publication Date
GB309561A true GB309561A (en) 1929-05-02

Family

ID=8889157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15130/28A Expired GB309561A (en) 1928-04-14 1928-05-23 Improvements relating to safety valves controlled by a pilot valve

Country Status (1)

Country Link
GB (1) GB309561A (en)

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