FR2448502A1 - Hydraulic jack for use on soft ground - is mounted on large rectangular base with diagonal stiffening ribs - Google Patents

Hydraulic jack for use on soft ground - is mounted on large rectangular base with diagonal stiffening ribs

Info

Publication number
FR2448502A1
FR2448502A1 FR7903020A FR7903020A FR2448502A1 FR 2448502 A1 FR2448502 A1 FR 2448502A1 FR 7903020 A FR7903020 A FR 7903020A FR 7903020 A FR7903020 A FR 7903020A FR 2448502 A1 FR2448502 A1 FR 2448502A1
Authority
FR
France
Prior art keywords
stiffening ribs
soft ground
large rectangular
hydraulic jack
rectangular base
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.)
Granted
Application number
FR7903020A
Other languages
French (fr)
Other versions
FR2448502B1 (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.)
GUSTIN FILS Ets
Original Assignee
GUSTIN FILS Ets
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 GUSTIN FILS Ets filed Critical GUSTIN FILS Ets
Priority to FR7903020A priority Critical patent/FR2448502A1/en
Publication of FR2448502A1 publication Critical patent/FR2448502A1/en
Application granted granted Critical
Publication of FR2448502B1 publication Critical patent/FR2448502B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B66F13/00—Common constructional features or accessories
    • 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
    • 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
    • B66F3/36—Load-engaging elements

Abstract

The hydraulic jack (1) is for use with tractors and other agricultural machinery when working on soft ground. The piston (2) of the jack is fixed to a large rectangular plate (3) with raised edges (3a) and diagonal stiffening ribs. The cylinder (4) fits over the piston and has a load bearing platform (5) attached to its upper end. A second load bearing platform (8) is attached to the cylinder (4) near its lower end for dealing with loads with a low ground clearance. The jack is supplied with hydraulic fluid through a pipe (6) controlled by a valve (7).
FR7903020A 1979-02-06 1979-02-06 Hydraulic jack for use on soft ground - is mounted on large rectangular base with diagonal stiffening ribs Granted FR2448502A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7903020A FR2448502A1 (en) 1979-02-06 1979-02-06 Hydraulic jack for use on soft ground - is mounted on large rectangular base with diagonal stiffening ribs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7903020A FR2448502A1 (en) 1979-02-06 1979-02-06 Hydraulic jack for use on soft ground - is mounted on large rectangular base with diagonal stiffening ribs

Publications (2)

Publication Number Publication Date
FR2448502A1 true FR2448502A1 (en) 1980-09-05
FR2448502B1 FR2448502B1 (en) 1984-10-12

Family

ID=9221658

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7903020A Granted FR2448502A1 (en) 1979-02-06 1979-02-06 Hydraulic jack for use on soft ground - is mounted on large rectangular base with diagonal stiffening ribs

Country Status (1)

Country Link
FR (1) FR2448502A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0720964A1 (en) * 1995-01-04 1996-07-10 Jin Soo Park Auxiliary device of a hydraulic jack

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB139942A (en) * 1919-04-30 1920-03-18 William Herbert Smith Hydraulic jacks
US1734816A (en) * 1925-09-22 1929-11-05 James E Ludwig Hydraulic lifting jack
FR36371E (en) * 1929-01-05 1930-05-10 Improvements to jacks
US2153845A (en) * 1936-03-04 1939-04-11 Homer R Rosenberry Hydraulic jack and method of making same
US2469670A (en) * 1946-03-11 1949-05-10 Charles L Thompson Low lift attachment for hydraulic jacks
DE807545C (en) * 1949-08-03 1951-07-02 Karl Plischke Winch, especially jack
US2852229A (en) * 1954-04-14 1958-09-16 Gross Israel Lifting equipment for jack operation
US3449910A (en) * 1966-04-14 1969-06-17 Tangyes Ltd Hydraulic force exerting apparatus
US4068826A (en) * 1977-07-21 1978-01-17 Scott Leroy A Heavy duty lifting devices

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB139942A (en) * 1919-04-30 1920-03-18 William Herbert Smith Hydraulic jacks
US1734816A (en) * 1925-09-22 1929-11-05 James E Ludwig Hydraulic lifting jack
FR36371E (en) * 1929-01-05 1930-05-10 Improvements to jacks
US2153845A (en) * 1936-03-04 1939-04-11 Homer R Rosenberry Hydraulic jack and method of making same
US2469670A (en) * 1946-03-11 1949-05-10 Charles L Thompson Low lift attachment for hydraulic jacks
DE807545C (en) * 1949-08-03 1951-07-02 Karl Plischke Winch, especially jack
US2852229A (en) * 1954-04-14 1958-09-16 Gross Israel Lifting equipment for jack operation
US3449910A (en) * 1966-04-14 1969-06-17 Tangyes Ltd Hydraulic force exerting apparatus
US4068826A (en) * 1977-07-21 1978-01-17 Scott Leroy A Heavy duty lifting devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0720964A1 (en) * 1995-01-04 1996-07-10 Jin Soo Park Auxiliary device of a hydraulic jack

Also Published As

Publication number Publication date
FR2448502B1 (en) 1984-10-12

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse