GB1449020A - Multistage hydraulic telescopic lifting jack - Google Patents

Multistage hydraulic telescopic lifting jack

Info

Publication number
GB1449020A
GB1449020A GB4782473A GB4782473A GB1449020A GB 1449020 A GB1449020 A GB 1449020A GB 4782473 A GB4782473 A GB 4782473A GB 4782473 A GB4782473 A GB 4782473A GB 1449020 A GB1449020 A GB 1449020A
Authority
GB
United Kingdom
Prior art keywords
cylinder
piston
port
fluid
annular chamber
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
GB4782473A
Other languages
English (en)
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.)
Montan Hydraulik GmbH and Co KG
Original Assignee
Montan Hydraulik GmbH and Co KG
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 Montan Hydraulik GmbH and Co KG filed Critical Montan Hydraulik GmbH and Co KG
Publication of GB1449020A publication Critical patent/GB1449020A/en
Expired legal-status Critical Current

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/26—Adaptations or arrangements of pistons
    • B66F3/28—Adaptations or arrangements of pistons telescopic

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Actuator (AREA)
GB4782473A 1972-11-02 1973-10-12 Multistage hydraulic telescopic lifting jack Expired GB1449020A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722253646 DE2253646C3 (de) 1972-11-02 1972-11-02 Mehrstufiger hydraulischer Teleskopzylinder

Publications (1)

Publication Number Publication Date
GB1449020A true GB1449020A (en) 1976-09-08

Family

ID=5860657

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4782473A Expired GB1449020A (en) 1972-11-02 1973-10-12 Multistage hydraulic telescopic lifting jack

Country Status (5)

Country Link
JP (1) JPS5411063B2 (enExample)
DE (1) DE2253646C3 (enExample)
FR (1) FR2205635B1 (enExample)
GB (1) GB1449020A (enExample)
IT (1) IT999126B (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823225A1 (de) * 1988-07-08 1990-01-11 Montan Hydraulik Gmbh & Co Kg Mehrstufiger hydraulischer teleskopzylinder mit einer zwangssteuerung fuer die aus- und einfahrfolge der teleskopglieder
RU2152898C1 (ru) * 1999-04-27 2000-07-20 Государственное унитарное предприятие Санкт-Петербургское морское бюро машиностроения "Малахит" Телескопический гидроцилиндр для больших ходов
RU2153464C1 (ru) * 1999-08-30 2000-07-27 Государственное унитарное предприятие Санкт-Петербургское морское бюро машиностроения "Малахит" Телескопический гидроцилиндр двустороннего действия
RU2153462C1 (ru) * 1999-08-25 2000-07-27 Государственное унитарное предприятие Санкт-Петербургское морское бюро машиностроения "Малахит" Телескопический гидроцилиндр комбинированного действия
CN115059660A (zh) * 2022-07-02 2022-09-16 安徽工程大学 一种机械-液压双锁定的多级液压缸结构

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641216C2 (de) * 1976-09-14 1982-09-02 Montan - Hydraulik GmbH & Co KG, 4755 Holzwickede Mehrstufiger hydraulischer Teleskopzylinder
DE2719848C2 (de) * 1977-05-04 1985-09-26 Montanhydraulik Gmbh & Co Kg, 4755 Holzwickede Mehrstufiger hydraulischer Teleskopzylinder
ZA804072B (en) * 1979-08-07 1981-06-24 Dobson Park Ind Telescoping jack
DE3021633A1 (de) * 1980-06-09 1981-12-17 Schütt, Friedrich, 4755 Holzwickede Mehrstufiger hydraulischer teleskopzylinder
DE3339851C1 (de) * 1983-11-04 1985-04-04 Montan-Hydraulik GmbH, 4755 Holzwickede Mehrstufiger hydraulischer Teleskopzylinder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823225A1 (de) * 1988-07-08 1990-01-11 Montan Hydraulik Gmbh & Co Kg Mehrstufiger hydraulischer teleskopzylinder mit einer zwangssteuerung fuer die aus- und einfahrfolge der teleskopglieder
RU2152898C1 (ru) * 1999-04-27 2000-07-20 Государственное унитарное предприятие Санкт-Петербургское морское бюро машиностроения "Малахит" Телескопический гидроцилиндр для больших ходов
RU2153462C1 (ru) * 1999-08-25 2000-07-27 Государственное унитарное предприятие Санкт-Петербургское морское бюро машиностроения "Малахит" Телескопический гидроцилиндр комбинированного действия
RU2153464C1 (ru) * 1999-08-30 2000-07-27 Государственное унитарное предприятие Санкт-Петербургское морское бюро машиностроения "Малахит" Телескопический гидроцилиндр двустороннего действия
CN115059660A (zh) * 2022-07-02 2022-09-16 安徽工程大学 一种机械-液压双锁定的多级液压缸结构

Also Published As

Publication number Publication date
IT999126B (it) 1976-02-20
DE2253646B2 (de) 1974-11-28
JPS5411063B2 (enExample) 1979-05-11
JPS4976256A (enExample) 1974-07-23
DE2253646A1 (de) 1974-05-22
FR2205635B1 (enExample) 1978-02-24
FR2205635A1 (enExample) 1974-05-31
DE2253646C3 (de) 1980-08-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee