GB509418A - Improvements in and relating to safety valves - Google Patents

Improvements in and relating to safety valves

Info

Publication number
GB509418A
GB509418A GB127838A GB127838A GB509418A GB 509418 A GB509418 A GB 509418A GB 127838 A GB127838 A GB 127838A GB 127838 A GB127838 A GB 127838A GB 509418 A GB509418 A GB 509418A
Authority
GB
United Kingdom
Prior art keywords
valve
spindle
piston
liner
valve lid
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
GB127838A
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.)
Cockburns Ltd
Original Assignee
Cockburns 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 Cockburns Ltd filed Critical Cockburns Ltd
Priority to GB127838A priority Critical patent/GB509418A/en
Publication of GB509418A publication Critical patent/GB509418A/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
    • F16K17/08—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 special arrangements for providing a large discharge passage

Landscapes

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

Abstract

509,418. Safety valves. COCKBURNS, Ltd., and GRANT, T. Jan. 14, 1938, No. 1278. [Class 135] A safety valve comprises a valve chest 1 provided with a seating 6 on which a valve lid 2 mounted on a spindle 8 is normally pressed by a spring 13 which is disposed between a cap 14, adjustable by a screwthreaded sleeve 15, and a piston 3, the said piston also being mounted on the spindle 8 and serving, when influenced by discharge fluid pressure, to assist the opening movement of the valve lid. The piston is disposed within a movable liner 4 and is secured to it by one or more pin-andslot or like connections 12, 11 so as to permit the liner to participate in any rotary movement imparted to the piston by the spindle 8, the liner normally seatj,ng on a ledge 10 at the lower end of a part 5 of the valve chest which is bored to accommodate said liner. The valve also includes a tubular nut 19 which may be locked by a pin 24 in the position shown, with the valve lid free to function, or else rotated to engage one of two abutments 20, 21 on the spindle and positively hold the valve lid in its closed or open positions respectively. The valve lid is preferably provided with a radially wide lip 2a overhanging an annular cavity 6a in the valve seat 6.
GB127838A 1938-01-14 1938-01-14 Improvements in and relating to safety valves Expired GB509418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB127838A GB509418A (en) 1938-01-14 1938-01-14 Improvements in and relating to safety valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB127838A GB509418A (en) 1938-01-14 1938-01-14 Improvements in and relating to safety valves

Publications (1)

Publication Number Publication Date
GB509418A true GB509418A (en) 1939-07-14

Family

ID=9719176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB127838A Expired GB509418A (en) 1938-01-14 1938-01-14 Improvements in and relating to safety valves

Country Status (1)

Country Link
GB (1) GB509418A (en)

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