GB1187882A - Check Valves. - Google Patents

Check Valves.

Info

Publication number
GB1187882A
GB1187882A GB2043568A GB2043568A GB1187882A GB 1187882 A GB1187882 A GB 1187882A GB 2043568 A GB2043568 A GB 2043568A GB 2043568 A GB2043568 A GB 2043568A GB 1187882 A GB1187882 A GB 1187882A
Authority
GB
United Kingdom
Prior art keywords
vanes
rods
tubes
hinges
closure
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
GB2043568A
Inventor
Stuart Brainard Smith
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.)
WILLIAM JOHN WOOLLEY
Original Assignee
WILLIAM JOHN WOOLLEY
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 WILLIAM JOHN WOOLLEY filed Critical WILLIAM JOHN WOOLLEY
Priority to GB2043568A priority Critical patent/GB1187882A/en
Publication of GB1187882A publication Critical patent/GB1187882A/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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
    • F16K15/036—Dual valve members with hinges crossing the flow line substantially diametrical
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means

Abstract

1,187,882. Valves. W. J. WOOLLEY. 30 April, 1968, No. 20435/68. Heading F2V. A check valve comprises a pair of semicircular vanes 30 pinned at their lower ends to respective torsion rods 26 and supported by hinges (28), 32 surrounding tubes 24 through which the rods 26 pass. The upper ends of the rods are interconnected by gearing (56) and a helical torsion spring (62) acts through the rods to bias the vanes closed. The tubes 24 are rotatably supported in brackets 38 (44) carried by a diametral support bar 20 having a seat ring 68 and sealing rings 70, 76 engageable by stainless steel strips 72, 74 on the vanes. The lower ends of the tubes 24 are sealingly welded to the hinges (28). If an obstruction such as a log is encountered independent relative movement of the vanes is possible. Brackets 38 (44) carrying buffers 78. A rotary indicator arm (58) is provided. In Fig. 9, each vane 30 has an opening 82 controlled by a respective closure 84 carried by an arm 86 clamped to a tube 24, the latter not being fast with hinges (28) in this case. The upper end of tubes 24 are connected by cranks (92) to one-way spring-loaded dashpot pistons (112) which retard closing movement of closures 84 when vanes 30 seat and thereby prevent hammer. In Fig. 12, closures 160 are pivotally carried at 185 by hinge arms 162 (158) the latter of which are pinned to the lower ends of torsion bars 156 arranged as in Fig. 5. The centre of pressure 186 of each closure 160 is between pivot 185 and a pin 188 slidable in composite damping bush 192-196, thereby obviating scrubbing of the closure on its stainless steel seats 178, 182. A buffer 198 is provided.
GB2043568A 1968-04-30 1968-04-30 Check Valves. Expired GB1187882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2043568A GB1187882A (en) 1968-04-30 1968-04-30 Check Valves.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2043568A GB1187882A (en) 1968-04-30 1968-04-30 Check Valves.

Publications (1)

Publication Number Publication Date
GB1187882A true GB1187882A (en) 1970-04-15

Family

ID=10145900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2043568A Expired GB1187882A (en) 1968-04-30 1968-04-30 Check Valves.

Country Status (1)

Country Link
GB (1) GB1187882A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467337A1 (en) * 1979-10-13 1981-04-17 Gerdts Gustav F Kg CHECK VALVE WITH TWO CLOSURE PARTS SOLICITED BY SPRINGS
US5711343A (en) * 1996-07-30 1998-01-27 Goodwin International Limited Dual plate check valve
CN100353103C (en) * 2004-11-18 2007-12-05 中国核动力研究设计院 Full-flow buffer check valve
WO2008120349A1 (en) * 2007-03-29 2008-10-09 Tomoe Technical Research Company Ltd. Check valve
DE102007025176A1 (en) * 2007-05-29 2008-12-04 Mahle International Gmbh switching valve
DE102007025177A1 (en) * 2007-05-29 2008-12-04 Mahle International Gmbh switching valve
EP3667138A1 (en) * 2018-12-10 2020-06-17 Hamilton Sundstrand Corporation Check valve

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467337A1 (en) * 1979-10-13 1981-04-17 Gerdts Gustav F Kg CHECK VALVE WITH TWO CLOSURE PARTS SOLICITED BY SPRINGS
US5711343A (en) * 1996-07-30 1998-01-27 Goodwin International Limited Dual plate check valve
CN100353103C (en) * 2004-11-18 2007-12-05 中国核动力研究设计院 Full-flow buffer check valve
WO2008120349A1 (en) * 2007-03-29 2008-10-09 Tomoe Technical Research Company Ltd. Check valve
DE102007025176A1 (en) * 2007-05-29 2008-12-04 Mahle International Gmbh switching valve
DE102007025177A1 (en) * 2007-05-29 2008-12-04 Mahle International Gmbh switching valve
EP3667138A1 (en) * 2018-12-10 2020-06-17 Hamilton Sundstrand Corporation Check valve
US11112023B2 (en) 2018-12-10 2021-09-07 Hamilton Sundstrand Corporation Check valve

Similar Documents

Publication Publication Date Title
US3024067A (en) Seat having adjustable back
GB1187882A (en) Check Valves.
NO144610B (en) CONE VALVE.
US3533438A (en) Island check valve
ATE60364T1 (en) MECHANISM FOR ACTIVATING A FLAP CLOSURE.
GB1497220A (en) Door closer
US3905390A (en) Surge protection valve
GB621195A (en) Improvements in or relating to closures, such as valves, lids, doors and the like
US3364944A (en) Valve
US4195657A (en) Surge protection valve
US2071203A (en) Door stay construction
GB1391085A (en) Hatch cover having pairs of folding covers
ATE58175T1 (en) MECHANISM FOR ACTIVATING A FLAP CLOSURE.
US1168579A (en) Flood-gate.
CN110118272A (en) A kind of double-sealing right angle check-valves peculiar to vessel
US2383761A (en) Receptacle filling apparatus
GB772690A (en) Improvements in or relating to check and foot valves
SU139889A1 (en) Slide gate for bulk material leakage
GB189906832A (en) Improvements in Non-return Valves for Steam, Water, Gas, and other Fittings.
SU932066A1 (en) Valve device
US2200667A (en) Ring gate structure
SU918630A1 (en) Valve
GB1044168A (en) Door closers
GB932883A (en) Improvements in or relating to hydraulic door closing mechanisms
US833940A (en) Double-acting door-check.

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee