GB221993A - Improved self-closing lavatory tap or valve - Google Patents
Improved self-closing lavatory tap or valveInfo
- 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
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.
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) |
-
1923
- 1923-11-07 GB GB2799323A patent/GB221993A/en not_active Expired
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