GB1030717A - Improvements in or relating to two-stage fluid pressure operated piston and cylinderassemblies - Google Patents
Improvements in or relating to two-stage fluid pressure operated piston and cylinderassembliesInfo
- Publication number
- GB1030717A GB1030717A GB36583/63A GB3658363A GB1030717A GB 1030717 A GB1030717 A GB 1030717A GB 36583/63 A GB36583/63 A GB 36583/63A GB 3658363 A GB3658363 A GB 3658363A GB 1030717 A GB1030717 A GB 1030717A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- piston
- port
- fluid
- valve
- 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
- 239000012530 fluid Substances 0.000 title abstract 6
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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Fluid-Driven Valves (AREA)
Abstract
1,030,717. Hydraulic jacks. DECCA Ltd. Aug. 26, 1964 [Sept. 17, 1963], No. 36583/63. Heading B8J. [Also in Division F1] In a two-stage double-acting telescopic piston and cylinder assembly wherein an inner piston 15 is slidable in a movable cylinder 14 having an outer piston 13 slidable in a fixed outer cylinder 12, the outer piston 13 is provided with a spring-loaded valve 23 opened by a plunger 32 when the cylinder 14 is in its fully extended position to allow fluid trapped in the inner cylinder 14 to be exhausted, whereby the inner piston 15 can thereafter move to its extended position. To extend the assembly pressure fluid is supplied to a port 30 whereby the pistons 13, 15 move together to a position in which the valve 23 is opened by an abutment 34 whereafter the inner piston 15 moves to its extended position, the fluid in the cylinder 14 exhausting through a port 19 in the cylinder 14, an annular chamber 20, the valve 23, a port 25 in the outer cylinder 12, and an annular passage 26 connected to a port 28. To contract the assembly fluid is supplied to the port 28 and exhausted from the port 30, the valve 23 being opened by the pressure of the fluid entering the outer cylinder 12 to retract the inner piston 15 followed by the outer piston 13 which is initially prevented from moving by catches 36 engaging an annular recess 37 in a member 21 secured to the piston 13.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB36583/63A GB1030717A (en) | 1963-09-17 | 1963-09-17 | Improvements in or relating to two-stage fluid pressure operated piston and cylinderassemblies |
NL6410380A NL6410380A (en) | 1963-09-17 | 1964-09-07 | |
US395871A US3259027A (en) | 1963-09-17 | 1964-09-11 | Two-stage fluid pressure operated piston and cylinder assemblies |
DE19641426479 DE1426479B2 (en) | 1963-09-17 | 1964-09-15 | DOUBLE-ACTING TELESCOPIC CYLINDER |
SE11137/64A SE304365B (en) | 1963-09-17 | 1964-09-16 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB36583/63A GB1030717A (en) | 1963-09-17 | 1963-09-17 | Improvements in or relating to two-stage fluid pressure operated piston and cylinderassemblies |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1030717A true GB1030717A (en) | 1966-05-25 |
Family
ID=10389462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36583/63A Expired GB1030717A (en) | 1963-09-17 | 1963-09-17 | Improvements in or relating to two-stage fluid pressure operated piston and cylinderassemblies |
Country Status (5)
Country | Link |
---|---|
US (1) | US3259027A (en) |
DE (1) | DE1426479B2 (en) |
GB (1) | GB1030717A (en) |
NL (1) | NL6410380A (en) |
SE (1) | SE304365B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0350053A1 (en) * | 1988-07-08 | 1990-01-10 | Montanhydraulik GmbH | Multiple-stage hydraulic telescopic actuator with control of the extension or retraction of the telescopic parts in an imposed order |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2021208A1 (en) * | 1970-04-30 | 1971-11-25 | Teves Gmbh Alfred | Two-circuit cylinder |
JPS5321073B2 (en) * | 1973-01-31 | 1978-06-30 | ||
US5341724A (en) * | 1993-06-28 | 1994-08-30 | Bronislav Vatel | Pneumatic telescoping cylinder and method |
US5953967A (en) * | 1996-05-28 | 1999-09-21 | Junkers; John | Fluid-operated cylinder-piston unit, and a tool provided therewith |
ES2291064B1 (en) * | 2005-02-03 | 2009-01-16 | Josep Alexandre Puig | DOUBLE EFFECT TELESCOPIC CYLINDER. |
CN106640840B (en) * | 2017-01-22 | 2018-03-06 | 重庆市巴山液压附件厂有限公司 | A kind of double-stage double-acting for scout car lifts hydraulic jack |
CN108547828B (en) * | 2018-07-11 | 2024-01-02 | 无锡气动技术研究所有限公司 | Bidirectional on-load multistage cylinder capable of being horizontally installed |
CN112093703B (en) * | 2020-10-13 | 2021-12-24 | 衡阳市雄焱工具有限公司 | Two-stage hydraulic jack |
CN112576574B (en) * | 2020-12-08 | 2024-06-18 | 四川凌峰航空液压机械有限公司 | Multi-stage wheel release actuator cylinder |
CN114148937B (en) * | 2021-12-14 | 2023-03-10 | 新乡市新华液压机械有限公司 | Novel hydraulic cylinder |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2079684A (en) * | 1935-12-02 | 1937-05-11 | Harold D Church | Hydraulic remote control |
US2487920A (en) * | 1948-05-25 | 1949-11-15 | John A Celenza | Hydraulic ram |
US3188917A (en) * | 1962-08-10 | 1965-06-15 | Yale & Towne Inc | Telescoping lift ram |
-
1963
- 1963-09-17 GB GB36583/63A patent/GB1030717A/en not_active Expired
-
1964
- 1964-09-07 NL NL6410380A patent/NL6410380A/xx unknown
- 1964-09-11 US US395871A patent/US3259027A/en not_active Expired - Lifetime
- 1964-09-15 DE DE19641426479 patent/DE1426479B2/en not_active Withdrawn
- 1964-09-16 SE SE11137/64A patent/SE304365B/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0350053A1 (en) * | 1988-07-08 | 1990-01-10 | Montanhydraulik GmbH | Multiple-stage hydraulic telescopic actuator with control of the extension or retraction of the telescopic parts in an imposed order |
Also Published As
Publication number | Publication date |
---|---|
DE1426479B2 (en) | 1972-02-17 |
DE1426479A1 (en) | 1968-11-21 |
NL6410380A (en) | 1965-03-18 |
SE304365B (en) | 1968-09-23 |
US3259027A (en) | 1966-07-05 |
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