GB201022A - Improvements in valves - Google Patents
Improvements in valvesInfo
- Publication number
- GB201022A GB201022A GB1904622A GB1904622A GB201022A GB 201022 A GB201022 A GB 201022A GB 1904622 A GB1904622 A GB 1904622A GB 1904622 A GB1904622 A GB 1904622A GB 201022 A GB201022 A GB 201022A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spindle
- lower valve
- valve
- screwed
- screw
- 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
- F16K43/00—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose
- F16K43/005—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose an auxiliary valve closing automatically when the main valve is being disassembled
- F16K43/006—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose an auxiliary valve closing automatically when the main valve is being disassembled the auxiliary valve being held open by the main valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
- Lift Valve (AREA)
Abstract
201,022. Maxwell, J. D. July 11, 1922. Lift valves ; closure members; stops, adjustable; leakage, stopping. -A lift valve operated by a screwed spindle is provided with two closure members acting on opposite sides of the seating, one being rotatably mounted on the spindle, and the other in screwed engagement with it. The cross partition 9 of the casing is provided with two opposed seats 10, 11, engaged by closure members 12, 13. The member 12 is rotatably mounted on the spindle 14, and the member 13 contains a screwed socket 18 engaging with the screwed end 19 of the spindle, the member being non-circular to prevent rotation. A spring 22 is provided to press the lower valve to its seat, so that this valve remains seated if the upper valve is withdrawn. If both valves are seated, and the spindle is rotated, the lower valve remains seated while the spindle carrying the upper valve rises. When the collar 15 engages with the cover 6, the upward movement of the spindle ceases, and the lower valve is then forced downward. A vent passage may be provided to prevent accummulation of pressure in the recess 18. The lower valve may be forced against its seating by a screw 23 which may be locked by a nut 27. Leakage along this screw may be prevented by means of its conical head, and the nut 27, both of which may engage the casing. This screw also serves as an adjustable, stop to limit the opening of the lower valve. When the lower valve is closed, the upper valve may be removed for repairs, and a cap 7 is also provided for the removal of the lower valve when required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1904622A GB201022A (en) | 1922-07-11 | 1922-07-11 | Improvements in valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1904622A GB201022A (en) | 1922-07-11 | 1922-07-11 | Improvements in valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB201022A true GB201022A (en) | 1923-07-26 |
Family
ID=10122837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1904622A Expired GB201022A (en) | 1922-07-11 | 1922-07-11 | Improvements in valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB201022A (en) |
-
1922
- 1922-07-11 GB GB1904622A patent/GB201022A/en not_active Expired
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