GB495280A - Improvements in or relating to stop valves - Google Patents
Improvements in or relating to stop valvesInfo
- Publication number
- GB495280A GB495280A GB594538A GB594538A GB495280A GB 495280 A GB495280 A GB 495280A GB 594538 A GB594538 A GB 594538A GB 594538 A GB594538 A GB 594538A GB 495280 A GB495280 A GB 495280A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- rod
- piston
- casing
- lift
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
495,280. Stop-valves. SHORES, W. D. Feb. 25, 1938, No. 5945. [Class 135] In a stop-valve having a pair of displaceable valve elements operable under control of a common means to close inlet and outlet passages to and from the valve body respectively, one valve is connected to the control means by a lost-motion connection which is taken up after the valve is seated to close its passage and during the taking up the valve co-operates with the control means to expand the other, a sleeve type, valve to ensure that the latter effects a fluid tight closure of the other passage. The valve comprises a lift valve 17 closing the inlet 11 to the valve casing 12 and a split sleeve or piston valve 22 which closes the outlet 25 of the casing and is carried between the lift valve 17 and a collar 18 on a screwed operated rod 14 common to both valves. The lift valve 17 is held loosely with some lost motion on the end of the rod 14, and its rear face is bevelled at 21 to engage a corresponding surface on the piston valve 22. This valve is split longitudinally and when the valve 17 has seated itself and the lost motion between it and the rod 14 has been taken up, bevelled surfaces 23 on the piston valve 22 and collar 18 co-operate with the bevelled surfaces 21 to expand the piston valve into tight engagement with the casing. A cross-head 30 on the rod 14 and interengaging lugs 29, 28 on the rod and valve 22 prevent the valve from rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB594538A GB495280A (en) | 1938-02-25 | 1938-02-25 | Improvements in or relating to stop valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB594538A GB495280A (en) | 1938-02-25 | 1938-02-25 | Improvements in or relating to stop valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB495280A true GB495280A (en) | 1938-11-10 |
Family
ID=9805556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB594538A Expired GB495280A (en) | 1938-02-25 | 1938-02-25 | Improvements in or relating to stop valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB495280A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2261719A (en) * | 1991-11-22 | 1993-05-26 | Denys Thompson | Flow control valve |
-
1938
- 1938-02-25 GB GB594538A patent/GB495280A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2261719A (en) * | 1991-11-22 | 1993-05-26 | Denys Thompson | Flow control valve |
| GB2261719B (en) * | 1991-11-22 | 1995-08-02 | Denys Thompson | Valve |
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