GB705403A - Improvements in or relating to the remote control of mechanisms - Google Patents
Improvements in or relating to the remote control of mechanismsInfo
- Publication number
- GB705403A GB705403A GB941651A GB941651A GB705403A GB 705403 A GB705403 A GB 705403A GB 941651 A GB941651 A GB 941651A GB 941651 A GB941651 A GB 941651A GB 705403 A GB705403 A GB 705403A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- pistons
- rod
- pressure fluid
- stem
- 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
- F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
- F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
- F15B11/125—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of digital actuators, i.e. actuators in which the total stroke is the sum of individual strokes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
705,403. Hydraulic machines; fluid-pressure servomotor-control systems. DAVEY, PAXMAN & CO., Ltd. April 2, 1952 [April 23, 1951], No. 9416/51. Classes 69 (2) and 135 A device for the remote control of mechanism comprises two or more pistons in a common cylinder with a working space at one side of each piston, one of said pistons being connected to the mechanism to be controlled and said working spaces each communicating with a separate inlet for pressure fluid, whereby each piston may be operated separately or in combination with one or more of the other pistons to thereby provide a number of different and defined control positions. As shown, the device has pistons 1, 2, 3 in a common cylinder 4, piston 3 being connected by a rod 8 to the mechanism to be controlled. A stem 1a of piston 1 slides in a partition 6 and carries a stop member 1b for engagement with the partition 6. A stem 2a of piston 2 slides within the stem 1a and has grooves 2e and carries a stop member 2b for engagement with the end of rod 1a. A stem 3a of piston 3 slides within stem 2a and has a stop member 3b for engagement with a shoulder 2f in the rod 2a. Pressure fluid may be applied to the space 1c at the rear of piston 1 through connection 1d to the space 2c at the rear of piston 2 through connection 2d and grooves 2e in rod rod 2a and to the space 3c at the rear of piston 2 through connection 2d and grooves 2e in rod 2a, and to the space 3c at the rear of piston 3 through connection 3d, bore 7b and the hollow rods of pistons 2 and 3. A spring 10 urges the pistons against the pressure fluid. The strokes of the pistons as controlled by the stop members, may be such that that of piston 2 is twice and that of piston 4 four times the stroke of piston 1. Thus, by applying no pressure fluid to the spaces or applying pressure fluid to the spaces as follows : spaces 1c or 2c, 1c and 2c, 3c, 1c and 3c, 2c and 3c, 1c and 2c, and 3c, the pistons provide the rod 8 with eight equally spaced control positions. The admission of pressure fluid may be controlled from a remote point, or electromagnetically-operated valves may be fitted adjacent the device and controlled remotely.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB941651A GB705403A (en) | 1951-04-23 | 1951-04-23 | Improvements in or relating to the remote control of mechanisms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB941651A GB705403A (en) | 1951-04-23 | 1951-04-23 | Improvements in or relating to the remote control of mechanisms |
Publications (1)
Publication Number | Publication Date |
---|---|
GB705403A true GB705403A (en) | 1954-03-10 |
Family
ID=9871544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB941651A Expired GB705403A (en) | 1951-04-23 | 1951-04-23 | Improvements in or relating to the remote control of mechanisms |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB705403A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2931340A (en) * | 1955-05-11 | 1960-04-05 | Electraulic Presses | Control mechanism for hydraulic presses |
US2969042A (en) * | 1957-07-26 | 1961-01-24 | Ibm | Cylinder adder |
US3093115A (en) * | 1959-01-31 | 1963-06-11 | Magneti Marelli Spa | Fluid actuated control mechanism for a brake and similar apparatus |
US3150563A (en) * | 1961-06-14 | 1964-09-29 | Kirkhof Mfg Corp | Double piston welding cylinder |
FR2431054A1 (en) * | 1978-07-12 | 1980-02-08 | Fiat Ricerche | FLUID CONTROL DEVICE |
-
1951
- 1951-04-23 GB GB941651A patent/GB705403A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2931340A (en) * | 1955-05-11 | 1960-04-05 | Electraulic Presses | Control mechanism for hydraulic presses |
US2969042A (en) * | 1957-07-26 | 1961-01-24 | Ibm | Cylinder adder |
US3093115A (en) * | 1959-01-31 | 1963-06-11 | Magneti Marelli Spa | Fluid actuated control mechanism for a brake and similar apparatus |
US3150563A (en) * | 1961-06-14 | 1964-09-29 | Kirkhof Mfg Corp | Double piston welding cylinder |
FR2431054A1 (en) * | 1978-07-12 | 1980-02-08 | Fiat Ricerche | FLUID CONTROL DEVICE |
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