GB436684A - Improvements in stop valves - Google Patents

Improvements in stop valves

Info

Publication number
GB436684A
GB436684A GB2240934A GB2240934A GB436684A GB 436684 A GB436684 A GB 436684A GB 2240934 A GB2240934 A GB 2240934A GB 2240934 A GB2240934 A GB 2240934A GB 436684 A GB436684 A GB 436684A
Authority
GB
United Kingdom
Prior art keywords
valve
spring
seat
acting
downstream
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
GB2240934A
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 GB2240934A priority Critical patent/GB436684A/en
Publication of GB436684A publication Critical patent/GB436684A/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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/12—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Safety Valves (AREA)
  • Lift Valve (AREA)

Abstract

436,684. Stop valves. COCKBURNS, Ltd., and MAcNICOLL, D., Clydesdale Engineering Works, Cardonald, Renfrewshire. Aug. 1, 1934, No. 22409. [Class 135] A stop valve comprises a valve element 1 between an upstream valve seat 2 and a downstream valve seat 3 which is permanently constrained towards the seating 2 by a spring 5 acting through a lever 6, spindle 7 and fork 8, the valve being opened by the fluid pressure on the upstream side acting against this spring. An emergency trip device is provided comprising a strong stressed spring 14 acting on a lever 15, which is normally retained by a catch 16, to pull the valve 1 over on to its downstream seat 3, against the resistance of the spring 5 when the catch is released. A slot and pin engagement 17, 18 is provided between the levers 15 and 6 to allow free operation of the valve without disturbing the emergency trip. The valve 1 can be positively seated on the seat 2 and the emergency trip reset by a spindle 10 which for normal operation is withdrawn. The valve also acts as a safety cut-off since if the pressure on the downstream side falls appreciably the valve 1 is closed on to its seating 3 by the fluid pressure alone.
GB2240934A 1934-08-01 1934-08-01 Improvements in stop valves Expired GB436684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2240934A GB436684A (en) 1934-08-01 1934-08-01 Improvements in stop valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2240934A GB436684A (en) 1934-08-01 1934-08-01 Improvements in stop valves

Publications (1)

Publication Number Publication Date
GB436684A true GB436684A (en) 1935-10-16

Family

ID=10178898

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2240934A Expired GB436684A (en) 1934-08-01 1934-08-01 Improvements in stop valves

Country Status (1)

Country Link
GB (1) GB436684A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594203A1 (en) * 1986-02-07 1987-08-14 Lorraine Laminage MULTIFUNCTION PURGE VALVE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594203A1 (en) * 1986-02-07 1987-08-14 Lorraine Laminage MULTIFUNCTION PURGE VALVE
EP0233118A1 (en) * 1986-02-07 1987-08-19 Societe Lorraine De Laminage Continu (Sollac) Multipurpose blow-off cock
US4796665A (en) * 1986-02-07 1989-01-10 Societe Lorraine De Laminage Continu - Sollac Multi-purpose draining valve

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