GB191200288A - Improved Balanced Valve for Controlling Steam or Fluid Pressure in Locomotives and the like. - Google Patents
Improved Balanced Valve for Controlling Steam or Fluid Pressure in Locomotives and the like.Info
- Publication number
- GB191200288A GB191200288A GB191200288DA GB191200288A GB 191200288 A GB191200288 A GB 191200288A GB 191200288D A GB191200288D A GB 191200288DA GB 191200288 A GB191200288 A GB 191200288A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- seat
- chamber
- opens
- locomotives
- 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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Turbines (AREA)
- Fluid-Driven Valves (AREA)
Abstract
288. Evans, J., Robson, G., and Lewis, D. Jan. 4. Lift valves.-A valve a for supplying steam to locomotive cylinders, and for other purposes, is provided with an auxiliary valve f which opens before the valve a and admits steam beneath a piston d rigidly attached to the valve a. Normally, the space c below the piston d is in communication with the outlet i, but when the valve f is opened, a valve h rigidly attached to the stem g of the valve f is lifted to a seat k and closes the outlet m of the chamber c. The seat k consists of a movable ring which normally rests upon projections m formed on the valve casing. When the main valve a opens, the seat k is lifted with the valves h, f so that the chamber c remains closed during the time that the valve a is being opened. During the reverse movement, the valve h opens as soon as the seat k reaches the projections n, and the balancing pressure in the chamber c is thus relieved.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191200288T | 1912-01-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191200288A true GB191200288A (en) | 1912-08-22 |
Family
ID=32367172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191200288D Expired GB191200288A (en) | 1912-01-04 | 1912-01-04 | Improved Balanced Valve for Controlling Steam or Fluid Pressure in Locomotives and the like. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191200288A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2702539A1 (en) * | 1993-03-10 | 1994-09-16 | Bushnell Eng Inc | Valve with an actuating device. |
-
1912
- 1912-01-04 GB GB191200288D patent/GB191200288A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2702539A1 (en) * | 1993-03-10 | 1994-09-16 | Bushnell Eng Inc | Valve with an actuating device. |
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