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 cylinderassemblies

Info

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
Application number
GB36583/63A
Inventor
Alan Phillipson
Basil Harry Royston Spiller
Robin Smith
Harry Cheesman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Decca Ltd
Original Assignee
Decca Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Decca Ltd filed Critical Decca Ltd
Priority to GB36583/63A priority Critical patent/GB1030717A/en
Priority to NL6410380A priority patent/NL6410380A/xx
Priority to US395871A priority patent/US3259027A/en
Priority to DE19641426479 priority patent/DE1426479B2/en
Priority to SE11137/64A priority patent/SE304365B/xx
Publication of GB1030717A publication Critical patent/GB1030717A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16Characterised 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.
GB36583/63A 1963-09-17 1963-09-17 Improvements in or relating to two-stage fluid pressure operated piston and cylinderassemblies Expired GB1030717A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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