GB703338A - Improvements in or relating to hydraulic control mechanism for hydraulic rams - Google Patents
Improvements in or relating to hydraulic control mechanism for hydraulic ramsInfo
- Publication number
- GB703338A GB703338A GB1969749A GB1969749A GB703338A GB 703338 A GB703338 A GB 703338A GB 1969749 A GB1969749 A GB 1969749A GB 1969749 A GB1969749 A GB 1969749A GB 703338 A GB703338 A GB 703338A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- hydraulic
- stroke
- relating
- control mechanism
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/321—Directional control characterised by the type of actuation mechanically
- F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/321—Directional control characterised by the type of actuation mechanically
- F15B2211/325—Directional control characterised by the type of actuation mechanically actuated by an output member of the circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/35—Directional control combined with flow control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/77—Control of direction of movement of the output member
- F15B2211/7725—Control of direction of movement of the output member with automatic reciprocation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
703,338. Hydraulic machines. VICKERSARMSTRONGS, Ltd. Sept. 13, 1950 [July 27, 1949], No. 19697/49. Class 69 (2) Flow to the ram 6 is controlled by the distributing valve 7. The valve is moved by hand to initiate a stroke, the ram being reversed at the end of the stroke by the tappet operated valve 10 admitting fluid to space 8 to reverse the valve 7. At the end of the in-stroke tappet operated valve 14 admits fluid behind piston 12 to shift valve 7 to its mid-position. Hand operated valve 17 admits fluid behind piston 16 to lock valve 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1969749A GB703338A (en) | 1949-07-27 | 1949-07-27 | Improvements in or relating to hydraulic control mechanism for hydraulic rams |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1969749A GB703338A (en) | 1949-07-27 | 1949-07-27 | Improvements in or relating to hydraulic control mechanism for hydraulic rams |
Publications (1)
Publication Number | Publication Date |
---|---|
GB703338A true GB703338A (en) | 1954-02-03 |
Family
ID=10133697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1969749A Expired GB703338A (en) | 1949-07-27 | 1949-07-27 | Improvements in or relating to hydraulic control mechanism for hydraulic rams |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB703338A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3170377A (en) * | 1959-06-10 | 1965-02-23 | Dempster Brothers Inc | Compaction apparatus |
-
1949
- 1949-07-27 GB GB1969749A patent/GB703338A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3170377A (en) * | 1959-06-10 | 1965-02-23 | Dempster Brothers Inc | Compaction apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1428994A (en) | Actuating device | |
GB1436079A (en) | Hydraulic percussion tools | |
US2109162A (en) | Piston valve with mid-position bypass | |
GB703338A (en) | Improvements in or relating to hydraulic control mechanism for hydraulic rams | |
GB1480753A (en) | Hydraulically-operated devices | |
GB598998A (en) | Hydraulic device for controlling members with a predetermined automatic interdependency | |
GB618960A (en) | Improvements in or relating to hydraulic control mechanism | |
GB629256A (en) | Improvements in or relating to a hydraulic system | |
FR2342409A1 (en) | Double acting reciprocating hydraulic motor - has elastic end stop for reversing rod to avoid premature reversal of valve | |
GB698651A (en) | Improvements in or relating to hydraulic motors | |
GB681005A (en) | Hydraulic driving means for racks | |
GB699348A (en) | An improved hydraulic shearing apparatus | |
GB712014A (en) | Improvements relating to self-contained hydraulic power units | |
GB343367A (en) | Improvements relating to hydraulically operated drilling and other machines | |
GB635066A (en) | Improvements in or relating to the electrical control of hydraulically-operated apparatus | |
GB684429A (en) | Improvements in or relating to the power take-off mechanism for a tractor | |
GB634505A (en) | Improvements in power controls for use in hydraulic transmission systems | |
GB727752A (en) | Improvements relating to hydraulically operated machine tools | |
GB1432226A (en) | Fluid operated piston-cylinder actuator | |
GB602209A (en) | Hydraulic table reciprocating mechanism | |
GB601176A (en) | Improvements in hydraulically actuated refuse vehicles | |
GB843868A (en) | Device for the hydraulic control of a machine tool or the like | |
GB1207882A (en) | Improved hydraulic reciprocating motor | |
GB860182A (en) | Improvements in or relating to hydraulic control installations | |
GB188944A (en) | Improvements in or relating to hydraulic transmission gear |