GB564255A - Improvements in or relating to hydraulic cut-out devices - Google Patents
Improvements in or relating to hydraulic cut-out devicesInfo
- Publication number
- GB564255A GB564255A GB1027342A GB1027342A GB564255A GB 564255 A GB564255 A GB 564255A GB 1027342 A GB1027342 A GB 1027342A GB 1027342 A GB1027342 A GB 1027342A GB 564255 A GB564255 A GB 564255A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- chamber
- byepass
- passage
- plunger
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
564,255. Valves. PUGH, C. A., SAY, A. W., and PLESSEY CO., Ltd. July 22, 1942, No. 10273. [Class 135] The device comprises an inlet 24, an outlet 25 leading to a service pipe 43 past a non-return valve 45, a byepass passage 26, a pilot valve 15 and a byepass valve 21. Pressure in the service pipe is led to the chamber 40 through a passage having an adjustable valve 49, and at a certain value causes a plunger 41 to move the valves 15, 21 against the action of a spring 29, the movement being sufficient to open the valve 15 but not the valve 21. The liquid admitted to a chamber 35 operates a piston 37 so that its plunger 38 moves into the chamber 40. The intensified pressure thus produced acts on the plunger 41 to move the valves 15, 21 further so that the latter opens the byepass passage 26. The piston 37 has a bleed orifice 52 and the chamber 36 in which it works is connected to the passage 26 through an adjustable valve 51. In a modification, the byepass valve 21 is replaced by a valve hydraulically connected with the valve 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1027342A GB564255A (en) | 1942-07-22 | 1942-07-22 | Improvements in or relating to hydraulic cut-out devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1027342A GB564255A (en) | 1942-07-22 | 1942-07-22 | Improvements in or relating to hydraulic cut-out devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB564255A true GB564255A (en) | 1944-09-20 |
Family
ID=9964810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1027342A Expired GB564255A (en) | 1942-07-22 | 1942-07-22 | Improvements in or relating to hydraulic cut-out devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB564255A (en) |
-
1942
- 1942-07-22 GB GB1027342A patent/GB564255A/en not_active Expired
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