GB145133A - Improvements in self-closing valves - Google Patents

Improvements in self-closing valves

Info

Publication number
GB145133A
GB145133A GB716419A GB716419A GB145133A GB 145133 A GB145133 A GB 145133A GB 716419 A GB716419 A GB 716419A GB 716419 A GB716419 A GB 716419A GB 145133 A GB145133 A GB 145133A
Authority
GB
United Kingdom
Prior art keywords
piston
valve
controlled
works
auxiliary valve
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
GB716419A
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 GB716419A priority Critical patent/GB145133A/en
Publication of GB145133A publication Critical patent/GB145133A/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
    • F16K21/00—Fluid-delivery valves, e.g. self-closing valves
    • F16K21/04—Self-closing valves, i.e. closing automatically after operation
    • F16K21/06—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening
    • F16K21/12—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening with hydraulically-operated opening means; with arrangements for pressure relief before opening

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

145,133. John, A. E. March 22, 1919. Valves controlled by pilot or relay valves.-A self-closing valve of the kind controlled by an auxiliary valve has a combined actuating piston and valve member adapted to close the inlet port at the moment of closing the outlet port, the latter remaining fully uncovered up to the moment of the final throttling of the inlet port. The valve face 8 works in conjunction with a seat 9 and is secured to the lower end of a piston 7 which is bevelled at 11 and has one or more peripheral grooves 10. The actuating pressure which leaks past the piston is controlled by an auxiliary valve 18 actuated b a push 17. The spindle 15 works through a conical packing 16 which holds it in position until the piston contacts with an adjustable screwed stop 20 and closes the valve. In a modification controlled by a float-actuated auxiliary valve, an adjustable leak is provided to the back of the piston, and in a further modification controlled by a stopcock arranged on a pipe connexion the stop 20 is replaced by a tubular member screwed into the back of the piston.
GB716419A 1919-03-22 1919-03-22 Improvements in self-closing valves Expired GB145133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB716419A GB145133A (en) 1919-03-22 1919-03-22 Improvements in self-closing valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB716419A GB145133A (en) 1919-03-22 1919-03-22 Improvements in self-closing valves

Publications (1)

Publication Number Publication Date
GB145133A true GB145133A (en) 1920-06-22

Family

ID=9827825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB716419A Expired GB145133A (en) 1919-03-22 1919-03-22 Improvements in self-closing valves

Country Status (1)

Country Link
GB (1) GB145133A (en)

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