GB1107380A - Improvements in or relating to butterfly valves - Google Patents

Improvements in or relating to butterfly valves

Info

Publication number
GB1107380A
GB1107380A GB40496/64A GB4049664A GB1107380A GB 1107380 A GB1107380 A GB 1107380A GB 40496/64 A GB40496/64 A GB 40496/64A GB 4049664 A GB4049664 A GB 4049664A GB 1107380 A GB1107380 A GB 1107380A
Authority
GB
United Kingdom
Prior art keywords
valve
weight
key
slot
open
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
GB40496/64A
Inventor
George Aubrey Felton
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.)
Loewy Robertson Engineering Co Ltd
Original Assignee
Loewy Robertson Engineering Co Ltd
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 Loewy Robertson Engineering Co Ltd filed Critical Loewy Robertson Engineering Co Ltd
Priority to GB40496/64A priority Critical patent/GB1107380A/en
Publication of GB1107380A publication Critical patent/GB1107380A/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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • 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
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
    • F16K15/1821—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for check valves with a hinged or pivoted closure member

Landscapes

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

Abstract

1,107,380. Valves. LOEWY ROBERTSON ENGINEERING CO. 7 Dec., 1965 [5 Oct., 1964], No. 40496/64. Heading F2V. A butterfly valve has a lost-motion connection with its actuating mechanism whereby it can also function as a check valve. As shown, the valve member has a pivotal axis along its diameter, the axis being parallel to, but spaced downstream from, the sealing edge of the valve member. A first stub shaft 15 carries a key 20 that co-operates with opposite ends 24a, 24b of a slot in a pinion driven via a worm by hand wheel 27. A second stub shaft (14, Fig. 5, not shown) carries a lever 25 having a weight 26 adjustably mounted thereon. The weight may be located on a bent outer part of the lever. To open the valve, the pinion is first rotated to bring end 24a of its slot into contact with key 20 and then rotated further to open the valve. When the valve is open, the weight 26 lies almost vertically above the axis. To allow the valve to act as a check valve, the pinion is now rotated to bring end 24b of the slot into contact with the key, whereby flow stoppage or reversal allows the weight to close the valve.
GB40496/64A 1964-10-05 1964-10-05 Improvements in or relating to butterfly valves Expired GB1107380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB40496/64A GB1107380A (en) 1964-10-05 1964-10-05 Improvements in or relating to butterfly valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB40496/64A GB1107380A (en) 1964-10-05 1964-10-05 Improvements in or relating to butterfly valves

Publications (1)

Publication Number Publication Date
GB1107380A true GB1107380A (en) 1968-03-27

Family

ID=10415194

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40496/64A Expired GB1107380A (en) 1964-10-05 1964-10-05 Improvements in or relating to butterfly valves

Country Status (1)

Country Link
GB (1) GB1107380A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105605A1 (en) * 1982-09-03 1984-04-18 General Signal Corporation Extended hub valve closure member
CN105402318A (en) * 2015-11-20 2016-03-16 中国船舶重工集团公司第七一九研究所 Worm transmission mechanism with key groove formed in inner edge of worm wheel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105605A1 (en) * 1982-09-03 1984-04-18 General Signal Corporation Extended hub valve closure member
US4491299A (en) * 1982-09-03 1985-01-01 General Signal Corporation Extended hub valve closure member
CN105402318A (en) * 2015-11-20 2016-03-16 中国船舶重工集团公司第七一九研究所 Worm transmission mechanism with key groove formed in inner edge of worm wheel

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