GB622666A - Improvements in or relating to fluid-operated jacks - Google Patents
Improvements in or relating to fluid-operated jacksInfo
- Publication number
- GB622666A GB622666A GB2420046A GB2420046A GB622666A GB 622666 A GB622666 A GB 622666A GB 2420046 A GB2420046 A GB 2420046A GB 2420046 A GB2420046 A GB 2420046A GB 622666 A GB622666 A GB 622666A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- fluid
- port
- jack
- cylinder
- 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
- F15B11/18—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors used in combination for obtaining stepwise operation of a single controlled member
- F15B11/183—Linear stepwise operation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
622,666. Fluid-operated jacks. CONWAY, H. G. Aug. 14, 1946, No. 24200. [Class 69 (ii)] A fluid-operated jack comprises an outer cylinder 11, a piston or plunger 18 fitted therein, which itself consists of a hollow cylinder and a further piston 21 working within the piston 18 carrying a piston-rod 15 projecting outside the jack, ports 29, 31, and 24, 26, being provided whereby operating fluid can be admitted to and exhausted from both the external jack cylinder and separately to and from the inner hollow cylindrical piston. When fluid is admitted to the port 31 and exhausted from the port 29, the piston 18 and piston-rod 15 move to the right until the end of the piston contacts the end of the cylinder 11 when fluid is admitted to the port 24 and exhausted from the port 26, the plunger 21 moves to the right within the piston 18. The piston 15 can, by reversal, be made to move to the left. In a modification the piston-rod extends from the innermost piston in both directions to the exterior of the jack and the outer cylinder is made in two parts to facilitate assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2420046A GB622666A (en) | 1946-08-14 | 1946-08-14 | Improvements in or relating to fluid-operated jacks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2420046A GB622666A (en) | 1946-08-14 | 1946-08-14 | Improvements in or relating to fluid-operated jacks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB622666A true GB622666A (en) | 1949-05-05 |
Family
ID=10207962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2420046A Expired GB622666A (en) | 1946-08-14 | 1946-08-14 | Improvements in or relating to fluid-operated jacks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB622666A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2905150A (en) * | 1953-09-16 | 1959-09-22 | Ebert Heinrich | Control for hydraulic transmissions |
| US3483798A (en) * | 1967-03-30 | 1969-12-16 | Koehring Co | Telescopic hydraulic actuator |
-
1946
- 1946-08-14 GB GB2420046A patent/GB622666A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2905150A (en) * | 1953-09-16 | 1959-09-22 | Ebert Heinrich | Control for hydraulic transmissions |
| US3483798A (en) * | 1967-03-30 | 1969-12-16 | Koehring Co | Telescopic hydraulic actuator |
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