GB647808A - Improvements in or relating to check valves - Google Patents

Improvements in or relating to check valves

Info

Publication number
GB647808A
GB647808A GB1303948A GB1303948A GB647808A GB 647808 A GB647808 A GB 647808A GB 1303948 A GB1303948 A GB 1303948A GB 1303948 A GB1303948 A GB 1303948A GB 647808 A GB647808 A GB 647808A
Authority
GB
United Kingdom
Prior art keywords
valve
cylinder
stem
plunger
spring
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
GB1303948A
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.)
ARTHUR W ADAMS Ltd
Original Assignee
ARTHUR W ADAMS 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 ARTHUR W ADAMS Ltd filed Critical ARTHUR W ADAMS Ltd
Priority to GB1303948A priority Critical patent/GB647808A/en
Publication of GB647808A publication Critical patent/GB647808A/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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
    • F16K47/10—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths in which the medium in one direction must flow through the throttling channel, and in the other direction may flow through a much wider channel parallel to the throttling channel
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/12—Special devices controlling the circulation of the liquid, e.g. valve arrangement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43—Motors
    • E05Y2201/448—Fluid motors; Details thereof
    • E05Y2201/458—Valves
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/10—Additional functions
    • E05Y2800/12—Sealing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/26—Form or shape
    • E05Y2800/28—Form or shape tubular, annular
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/26—Form or shape
    • E05Y2800/298—Form or shape having indentations
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

647,808. Dashpots. KEARNEY, A. R., and ADAMS, Ltd., A. W. May 12, 1948, No. 13039. [Class 108(iii)] [Also in Group XXIX] A dashpot in a spring-loaded door-closer comprises a cylinder 1, Fig. 2, housing a plunger 2 and having a port 4 at its closed end communicating with the body 6 of a check valve. The body 6 is closed at one end by an adjustable head 12 having a fluted stem 13 carrying a slidable valve 15 engageable with a movable seat 8 urged by a spring 10 against a shoulder in the body to close a vent 9. On outward movement of the plunger 2, liquid is sucked in through the inlet 4a, lifts the valve 15 and then passes to the cylinder through the port 4. On inward movement of the plunger 2, the liquid is expelled from the cylinder 1 and slowly forced between the stem and the now seated valve. In the event of excessive pressure in the cylinder, both valve and seat are moved against the spring 10 to open the vent 9. The flutes in the stem 13 are radiused at their upper ends to permit adjustment of the area between the valve and stem. Specification 647,809, [Group XXV], is referred to.
GB1303948A 1948-05-12 1948-05-12 Improvements in or relating to check valves Expired GB647808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1303948A GB647808A (en) 1948-05-12 1948-05-12 Improvements in or relating to check valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1303948A GB647808A (en) 1948-05-12 1948-05-12 Improvements in or relating to check valves

Publications (1)

Publication Number Publication Date
GB647808A true GB647808A (en) 1950-12-20

Family

ID=10015686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1303948A Expired GB647808A (en) 1948-05-12 1948-05-12 Improvements in or relating to check valves

Country Status (1)

Country Link
GB (1) GB647808A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832954A (en) * 1994-06-21 1998-11-10 Caterpillar Inc. Check valve assembly for inhibiting Helmholtz resonance
US6336797B1 (en) * 2000-06-01 2002-01-08 Westinghouse Air Brake Technologies Corp. Oiless rotary scroll air compressor air inlet valve
CN104819305A (en) * 2014-02-05 2015-08-05 多尔马德国有限责任公司 Valve device for a hydraulic door closer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832954A (en) * 1994-06-21 1998-11-10 Caterpillar Inc. Check valve assembly for inhibiting Helmholtz resonance
US6336797B1 (en) * 2000-06-01 2002-01-08 Westinghouse Air Brake Technologies Corp. Oiless rotary scroll air compressor air inlet valve
CN104819305A (en) * 2014-02-05 2015-08-05 多尔马德国有限责任公司 Valve device for a hydraulic door closer
EP2905407A1 (en) * 2014-02-05 2015-08-12 DORMA Deutschland GmbH Valve device for a hydraulic door closer
CN104819305B (en) * 2014-02-05 2019-06-25 多玛凯拔德国有限公司 Valve gear for hydraulic door-closer

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