GB191202577A - Improvements in Stop-valves. - Google Patents

Improvements in Stop-valves.

Info

Publication number
GB191202577A
GB191202577A GB191202577DA GB191202577A GB 191202577 A GB191202577 A GB 191202577A GB 191202577D A GB191202577D A GB 191202577DA GB 191202577 A GB191202577 A GB 191202577A
Authority
GB
United Kingdom
Prior art keywords
valve
rack
ring
washer
pinion
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
Inventor
Vivian Elkington
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
Application granted granted Critical
Publication of GB191202577A publication Critical patent/GB191202577A/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
    • F16K39/00—Devices for relieving the pressure on the sealing faces
    • F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

2577. Elkington, V. Jan. 31. Actuating; locking.-A valve of the balancedpiston type is provided with packing - rings pressed outwards by fluid pressure, and with a guard for protecting the packing in the inlet when the valve is open, The valve 5 slides in a casing 2, and is connected by a stem 12 to a forked rack 11 engaged by a pinion 20 operated by a spindle and hand-wheel 23. The valve is provided with longitudinal passages 6 to conduct the fluid behind, and so balance, the piston. A packing-ring 7 is held between the valve 5 and an annular member 8, the fluid pressure having access to the rear of the packing-ring to produce a tight joint when the valve is closed. The inlet 3 of the valve is provided with a washer 19 pressed outwards by fluid pressure, which has access to the rear of the washer through ducts 32. When the valve is open, the washer 19 is protected by a ring member 18 connected by a rod 16 to a rack 14. The rack 14 is provided with a recess which, when the valve is open, prevents the pinion 20 from engaging the rack 14. Rotation of the wheel 23 then closes the valve 5. but does not affect the member 18. When the valve reaches its seating, it forces the ring 18 away and so brings the rack 14 into engagement with the pinion 20. When the valve is subsequently opened, the ring 18 moves with the valve until it covers the washer 19. The rack 14 is then out of engagement with the pinion 20 and the further opening of the valve leaves the ring 18 in its position covering the washer 19. A piece of gauze 30 prevents dust &c. from entering the chamber 2. The handle 23 is provided with notches adapted to be engaged by a latch 27 for locking the valve in any position.
GB191202577D 1912-01-31 1912-01-31 Improvements in Stop-valves. Expired GB191202577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191202577T 1912-01-31

Publications (1)

Publication Number Publication Date
GB191202577A true GB191202577A (en) 1912-05-30

Family

ID=32569817

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191202577D Expired GB191202577A (en) 1912-01-31 1912-01-31 Improvements in Stop-valves.

Country Status (1)

Country Link
GB (1) GB191202577A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017055856A1 (en) * 2015-10-01 2017-04-06 Goodwin Plc Valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017055856A1 (en) * 2015-10-01 2017-04-06 Goodwin Plc Valve
CN108351044A (en) * 2015-10-01 2018-07-31 古德温公开有限公司 Valve
US10557562B2 (en) 2015-10-01 2020-02-11 Goodwin Plc Valve
CN108351044B (en) * 2015-10-01 2020-03-06 古德温公开有限公司 Valve with a valve body

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