GB581581A - Hydraulically operated controlling means for plants, machines, apparatus and the like - Google Patents
Hydraulically operated controlling means for plants, machines, apparatus and the likeInfo
- Publication number
- GB581581A GB581581A GB7329/44A GB732944A GB581581A GB 581581 A GB581581 A GB 581581A GB 7329/44 A GB7329/44 A GB 7329/44A GB 732944 A GB732944 A GB 732944A GB 581581 A GB581581 A GB 581581A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- timing device
- shaft
- cylinder
- pawls
- 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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Retarders (AREA)
Abstract
581,581. Hydraulic machines; fluidactuated valves. ESCHER WYSS MASCHINENFABRIKEN AKT.-GES. April 20, 1944, No. 7329. Convention date, April 22, 1943. [Classes 69 (ii) and 135] In hydraulic control means in which a number of operations take place in sequence and the duration of each is independently variable by means of a separate timing device A, the latter each comprise a manually adjustable member 26 and a member 27 rotatable from the shaft. 1 controlling all the operations. As shown, operations are effected by hydraulic motors 47-49, controlled respectively by distributing vales 2-4 mounted on a common shaft 1 rotated step-by-step by a differential piston 9 under control of timing devices A. The latter each comprise the member 26 having a port 28, surrounded by the cylinder 27 having a port 31 and rotatable by pawl mechanism 43, 44 from the motor 17 driving the supply pump 16. After a predetermined number of steps, adjustable by rotating member 26 manually, the ports 28, 31 coincide and place the large end of differential piston 9 in connection with a reservoir. Pressure acting on the small end then moves the piston to the right and rotates the shaft 1 one step through ratchet and pawl mechanism 6, 7, 8. This reverses the liquid supply to the first motor 47 and simultaneously causes a cam 46 to lift a member 45 and disengage pawls 43, 44 of the first timing device, while a second member 45 is lowered to engage the pawls of a second timing device. Disengagement of the first set of pawls releases the cylinder 27 which returns under spring influence to close the exhaust connection 28, 31, thereby causing pressure to build up on the large end of piston 9 and effect a return stroke. After a further adjustable number of strokes of the second set of pawls the large end of piston 9 is again exhausted by connecting parts 28, 31 on the second timing device, and piston 9 moves to the right to rotate shaft 1 another step. This cuts out the second timing device to complete the first operation and actuates the first timing device of the distributing valve 3 to actuate cylinder 48 and start the second operation. The cycle proceeds as before. A full stroke of piston 9 is ensured by a lever 75 which is operated by a wheel 76 on shaft 1 and opens a by-pass in the connection between cylinder 9 and timing device A. Any operation may be interrupted by manual operation of valves 53-55 between the distributing valves and their respective motors. Rotation of shaft 1 may also be effected by manual operation of a valve 11 controlling exhaust from the differential cylinder or by manual or automatic control of an exhaust valve 24, or by rotation of a hand lever 77. Speed of operation of motor 47 can be controlled by a throttle valve 72 pressed against an adjustable stop 73 by exhaust pressure. Any operation may also be prevented by a hand-operated locking device 81.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH581581X | 1943-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB581581A true GB581581A (en) | 1946-10-17 |
Family
ID=4521542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7329/44A Expired GB581581A (en) | 1943-04-22 | 1944-04-20 | Hydraulically operated controlling means for plants, machines, apparatus and the like |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH237671A (en) |
FR (1) | FR903856A (en) |
GB (1) | GB581581A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1292048B (en) * | 1963-11-05 | 1969-04-03 | Maremont Corp | Device on cards or cards for converting the fiber web into a card sliver |
GB2225387A (en) * | 1988-11-16 | 1990-05-30 | Mcintyre J | Control system for machine involving sequential operations |
US6606051B1 (en) | 1984-12-03 | 2003-08-12 | Time Domain Corporation | Pulse-responsive dipole antenna |
US6882301B2 (en) | 1986-06-03 | 2005-04-19 | Time Domain Corporation | Time domain radio transmission system |
US6933882B2 (en) | 1986-06-03 | 2005-08-23 | Time Domain Corporation | Time domain radio transmission system |
USRE39759E1 (en) | 1984-12-03 | 2007-08-07 | Time Domain Corporation | Time domain radio transmission system |
USRE41479E1 (en) | 1984-12-03 | 2010-08-10 | Time Domain Corporation | Time domain radio transmission system |
-
1943
- 1943-04-22 CH CH237671D patent/CH237671A/en unknown
-
1944
- 1944-04-20 GB GB7329/44A patent/GB581581A/en not_active Expired
- 1944-04-28 FR FR903856D patent/FR903856A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1292048B (en) * | 1963-11-05 | 1969-04-03 | Maremont Corp | Device on cards or cards for converting the fiber web into a card sliver |
US6606051B1 (en) | 1984-12-03 | 2003-08-12 | Time Domain Corporation | Pulse-responsive dipole antenna |
USRE39759E1 (en) | 1984-12-03 | 2007-08-07 | Time Domain Corporation | Time domain radio transmission system |
USRE41479E1 (en) | 1984-12-03 | 2010-08-10 | Time Domain Corporation | Time domain radio transmission system |
US6882301B2 (en) | 1986-06-03 | 2005-04-19 | Time Domain Corporation | Time domain radio transmission system |
US6933882B2 (en) | 1986-06-03 | 2005-08-23 | Time Domain Corporation | Time domain radio transmission system |
GB2225387A (en) * | 1988-11-16 | 1990-05-30 | Mcintyre J | Control system for machine involving sequential operations |
Also Published As
Publication number | Publication date |
---|---|
FR903856A (en) | 1945-10-19 |
CH237671A (en) | 1945-05-15 |
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