GB221993A - Improved self-closing lavatory tap or valve - Google Patents

Improved self-closing lavatory tap or valve

Info

Publication number
GB221993A
GB221993A GB2799323A GB2799323A GB221993A GB 221993 A GB221993 A GB 221993A GB 2799323 A GB2799323 A GB 2799323A GB 2799323 A GB2799323 A GB 2799323A GB 221993 A GB221993 A GB 221993A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
cylinder
ports
closing
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
GB2799323A
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.)
Doulton and Co Ltd
Original Assignee
Doulton and 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 Doulton and Co Ltd filed Critical Doulton and Co Ltd
Priority to GB2799323A priority Critical patent/GB221993A/en
Publication of GB221993A publication Critical patent/GB221993A/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
    • F16K21/00—Fluid-delivery valves, e.g. self-closing valves
    • F16K21/04—Self-closing valves, i.e. closing automatically after operation
    • F16K21/06—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening
    • F16K21/10—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening with hydraulic brake cylinder acting on the closure member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

221,993. Doulton & Co., Ltd., and Walker, G. Nov. 7,1923. Waste-preventing valves; dashpots, applications of. - A self-closing non-concussive lavatory tap has a main lift valve member P opened by means of a push M and closed by a spring R and by fluid flowing through and ports G, K in a piston F secured to the valve. The piston works in a cylinder B screwed into an extension A<1> of the inlet fitting so as to leave an annular passage communicating by ports C with the inside of the cylinder. The piston has an annular groove D and the cylinder has an enlarged bore H so that when the valve and piston are depressed water may pass through the ports C, ard groove D to the central passage G and thence through the main valve to the outlet. Above the supporting flange E of the cylinder the piston is provided with a plate J having a sliding fit in the main casing so that as the valve closes a vacuum is formed beneath the plate to retard the closing movement.
GB2799323A 1923-11-07 1923-11-07 Improved self-closing lavatory tap or valve Expired GB221993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2799323A GB221993A (en) 1923-11-07 1923-11-07 Improved self-closing lavatory tap or valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2799323A GB221993A (en) 1923-11-07 1923-11-07 Improved self-closing lavatory tap or valve

Publications (1)

Publication Number Publication Date
GB221993A true GB221993A (en) 1924-09-25

Family

ID=10268548

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2799323A Expired GB221993A (en) 1923-11-07 1923-11-07 Improved self-closing lavatory tap or valve

Country Status (1)

Country Link
GB (1) GB221993A (en)

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