GB191104657A - Improvements in and relating to Relief or Surplus Pressure Valves. - Google Patents

Improvements in and relating to Relief or Surplus Pressure Valves.

Info

Publication number
GB191104657A
GB191104657A GB191104657DA GB191104657A GB 191104657 A GB191104657 A GB 191104657A GB 191104657D A GB191104657D A GB 191104657DA GB 191104657 A GB191104657 A GB 191104657A
Authority
GB
United Kingdom
Prior art keywords
valve
loaded
auxiliary
fitted
actuating
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
John Auld
John Graham
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 GB191104657A publication Critical patent/GB191104657A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00Control of fluid pressure
    • G05D16/14Control of fluid pressure with auxiliary non-electric power
    • G05D16/16Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
    • G05D16/166Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using pistons within the main valve
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00Control of fluid pressure
    • G05D16/024Controlling the inlet pressure, e.g. back-pressure regulator

Abstract

4657. Auld, J., and Graham, J. Feb. 24. Safety-valves. -- A safety - valve of the type having a loaded main valve and fitted with an actuating piston under the control of a loaded duplex auxiliary valve, has the auxiliary valve actuated by a diaphragm and is provided with a non-return valve in the inlet to or the outlet from the auxiliary valve. In the form shown in Fig. 3, the main valve 4 is loaded by a weighted lever 23 fitted with a dash-pot and has a water seal the level of which is controlled by pipes 20, 21. The actuating-piston 3 is arranged in a cylinder 5 below the main valve and is controlled by a duplex lift valve 15, 16 actuated by a diaphragm 10 loaded by a weighted lever 13. The outlet from the auxiliary valve is fitted with a non - return valve 19 which may be water sealed. In a modification, the actuating-piston is arranged above the main valve and the valve 19 is arranged in the inlet to the auxiliary valve.
GB191104657D 1911-02-24 1911-02-24 Improvements in and relating to Relief or Surplus Pressure Valves. Expired GB191104657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191104657T 1911-02-24

Publications (1)

Publication Number Publication Date
GB191104657A true GB191104657A (en) 1911-12-30

Family

ID=32496959

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191104657D Expired GB191104657A (en) 1911-02-24 1911-02-24 Improvements in and relating to Relief or Surplus Pressure Valves.

Country Status (1)

Country Link
GB (1) GB191104657A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015008258A3 (en) * 2013-07-19 2015-07-30 African Oxygen Limited Gas pressure regulator
CN112728045A (en) * 2020-12-28 2021-04-30 浙江中烟工业有限责任公司 Gravity self-balancing exhaust device for mechanical arm gear box

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015008258A3 (en) * 2013-07-19 2015-07-30 African Oxygen Limited Gas pressure regulator
US9958879B2 (en) 2013-07-19 2018-05-01 African Oxygen Limited Gas pressure regulator
CN112728045A (en) * 2020-12-28 2021-04-30 浙江中烟工业有限责任公司 Gravity self-balancing exhaust device for mechanical arm gear box

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