GB191802A - Improvements in valves closing after a predetermined interval - Google Patents
Improvements in valves closing after a predetermined intervalInfo
- Publication number
- GB191802A GB191802A GB2721021A GB2721021A GB191802A GB 191802 A GB191802 A GB 191802A GB 2721021 A GB2721021 A GB 2721021A GB 2721021 A GB2721021 A GB 2721021A GB 191802 A GB191802 A GB 191802A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- closed
- piston
- liquid
- outlet
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
- E03D3/02—Self-closing flushing valves
- E03D3/04—Self-closing flushing valves with piston valve and pressure chamber for retarding the valve-closing movement
Landscapes
- Safety Valves (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Check Valves (AREA)
Abstract
191,802. Pillon, A., and Ravaz, E. Oct. 13, 1921. Valves closing after predetermined interval or flow.-A valve for delivering liquid for a predetermined time interval, is provided with a piston valve closing the outlet, and a lift valve combined with a slow leakage device closing the inlet. The body R is provided with an inlet a communicating with a cylindrical chamber c, j, and an outlet b communicating with a smaller chamber d. The body R is closed at one end by a plug f and at the other end by a cap i. The chamber d contains a cylinder l which is open at one end and provided at the other end with a perforated disc k. An extension m of the cylinder carries a handle n, while a central bore o forms a guide for a rod q provided with grooves u and a collar t at the other end. The disc valve g is mounted on the grooved portion of the rod by means of a sleeve which is capable of a slight longitudinal movement, and the valve carries a piston h sliding in the cylindrical chamber c. The end of the rod q carries a disc valve s which is pressed against its seating on the main valve by means of a spring v. Calibrated openings w are provided in the piston. When the valve is in the closed position, the outlet d is uncovered, but the valve g is closed by the spring v and the pressure of liquid behind the piston. When the handle n is pressed inwards, the outlet d is first closed and the rod q is then pressed inwards to open the valve s. Liquid then flows through the grooves u into the space e, relieving the pressure on the back of the piston h. The valve g is then fully opened, but the valve l remains closed. When the handle n is pulled out again, the valve l is opened, and liquid is free to flow through the device. The valve g is gradually closed by fluid pressure assisted by the spring v at a rate determined by the passage of water through the opening w, so that a supply of liquid is obtained for a definite period. Specification 28463/04 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2721021A GB191802A (en) | 1921-10-13 | 1921-10-13 | Improvements in valves closing after a predetermined interval |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2721021A GB191802A (en) | 1921-10-13 | 1921-10-13 | Improvements in valves closing after a predetermined interval |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191802A true GB191802A (en) | 1923-01-15 |
Family
ID=10255946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2721021A Expired GB191802A (en) | 1921-10-13 | 1921-10-13 | Improvements in valves closing after a predetermined interval |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB191802A (en) |
-
1921
- 1921-10-13 GB GB2721021A patent/GB191802A/en not_active Expired
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