GB191202090A - Improvements in and relating to Stop Valves. - Google Patents

Improvements in and relating to Stop Valves.

Info

Publication number
GB191202090A
GB191202090A GB191202090DA GB191202090A GB 191202090 A GB191202090 A GB 191202090A GB 191202090D A GB191202090D A GB 191202090DA GB 191202090 A GB191202090 A GB 191202090A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
lever
spindle
pipe
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
David Cockburn
Donald Macnicoll
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 GB191202090A publication Critical patent/GB191202090A/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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
    • F16K31/143—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston

Abstract

2090. Cockburn, D., and MacNicoll, D. Jan. 26. Lift valves; actuating.-A stop-valve, which is adapted to be opened by direct pressure of the fluid on the valve member and closed by mechanical means comprising a screwed spindle, is so arranged that, on actuating the spindle to allow the valve to open, a pilot valve is operated so as to admit pressure to one side of a piston and thereby cushion the opening of the main valve. A second pilot valve is provided by means of which the main valve may be closed in an emergency. The valve member B closing the inlet port a is mounted on a spindle E having a handle N and sliding in a threaded screw I rotatable in a cross-head J by a wheel M. A piston G is mounted on the spindle E and works in a cylindrical chamber F, which communicates on the side remote from the valve B with the inlet a by means of a pipe j<1>, j<2>, j<3>, and on the other side is connected to the atmosphere by a pipe k. The passage j<1>, j<2>, j<3> is controlled by a valve k<1> mounted on the valve casing and having a stem m<2> passing through a lever t and carrying a nut s which is engaged by the lever. The lever is cranked, and has at one end a sloping surface x which is engaged by a collar T on the screw I when the wheel M is rotated, thus opening the valve k<1> and admitting fluid into the cylinder F. The piston G is fitted with leaky rings P so that the valve B is allowed to open slowly. In order to close the valve in an emergency, a valve k<2> in the pipe k is opened by hand by means of the lever t, which is raised so as to engage a nut s<1> on the valve stem. The pressure on the further side of the piston G is then unbalanced and the valve closes quickly.
GB191202090D 1912-01-26 1912-01-26 Improvements in and relating to Stop Valves. Expired GB191202090A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191202090T 1912-01-26

Publications (1)

Publication Number Publication Date
GB191202090A true GB191202090A (en) 1912-05-30

Family

ID=32569580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191202090D Expired GB191202090A (en) 1912-01-26 1912-01-26 Improvements in and relating to Stop Valves.

Country Status (1)

Country Link
GB (1) GB191202090A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102818055A (en) * 2012-09-11 2012-12-12 中国人民解放军总后勤部油料研究所 Automatic block valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102818055A (en) * 2012-09-11 2012-12-12 中国人民解放军总后勤部油料研究所 Automatic block valve

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