GB192191A - Improvements in or relating to self-closing valves - Google Patents

Improvements in or relating to self-closing valves

Info

Publication number
GB192191A
GB192191A GB2937021A GB2937021A GB192191A GB 192191 A GB192191 A GB 192191A GB 2937021 A GB2937021 A GB 2937021A GB 2937021 A GB2937021 A GB 2937021A GB 192191 A GB192191 A GB 192191A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
lever
pressure
throat
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
GB2937021A
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 GB2937021A priority Critical patent/GB192191A/en
Publication of GB192191A publication Critical patent/GB192191A/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
    • F16K17/20—Excess-flow valves
    • F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
    • F16K17/32—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting on a servo-mechanism or on a catch-releasing mechanism

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

192,191. Edwards, G. T., and Blakeborough, R. A. Nov. 4, 1921. Valves controlled by pilot and relay valves.-A valve device adapted to close in the event of an abnormal flow through the valve has a piston actuated sluice valve member adapted to work in the throat of a Venturi tube and controlled by a pilot valve actuated by the pressure at the throat. The valve b is connected by a spindle c to a piston d controlled by an auxiliary piston valve f so arranged as to connect the two sides of the piston alternately to pressure and exhaust. The auxiliary valve spindle is extended to provide a knob k for hand actuation and is fitted with a movable piece r adapted to be engaged by the shorter arm p<1> of a weighted lever p. The lever p is connected at o to a rod n<1> on a piston n working in a cylinder l and normally held in its raised position by throat pressure admitted through a pipe m. When actuating the auxiliary valve by hand to reset the apparatus the piece r is lifted clear of the lever p<1>. A second piston subject to conduit pressure may be arranged to act on the lever against the action of the piston n. In a modification the two pistons are arranged in a common spindle and actuate a four-way plug-cock through lever and catch mechanism. The sluice valve may be fitted with a ring to close the sump when the valve is open or the inlet may be made smaller than the outlet so that the stream jumps over the sump.
GB2937021A 1921-11-04 1921-11-04 Improvements in or relating to self-closing valves Expired GB192191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2937021A GB192191A (en) 1921-11-04 1921-11-04 Improvements in or relating to self-closing valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2937021A GB192191A (en) 1921-11-04 1921-11-04 Improvements in or relating to self-closing valves

Publications (1)

Publication Number Publication Date
GB192191A true GB192191A (en) 1923-02-01

Family

ID=10290449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2937021A Expired GB192191A (en) 1921-11-04 1921-11-04 Improvements in or relating to self-closing valves

Country Status (1)

Country Link
GB (1) GB192191A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3107646A4 (en) * 2014-02-17 2017-11-15 Nyloncraft Inc. Super aspirator with integrated dual flow shut off
CN114776860A (en) * 2022-06-17 2022-07-22 杭州宣吉科技有限公司 Self-operated regulating valve with corrosion resistant function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3107646A4 (en) * 2014-02-17 2017-11-15 Nyloncraft Inc. Super aspirator with integrated dual flow shut off
CN114776860A (en) * 2022-06-17 2022-07-22 杭州宣吉科技有限公司 Self-operated regulating valve with corrosion resistant function
CN114776860B (en) * 2022-06-17 2022-09-02 杭州宣吉科技有限公司 Self-operated regulating valve with corrosion resistant function

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