ES308834A1 - Improved lifting device - Google Patents
Improved lifting deviceInfo
- Publication number
- ES308834A1 ES308834A1 ES0308834A ES308834A ES308834A1 ES 308834 A1 ES308834 A1 ES 308834A1 ES 0308834 A ES0308834 A ES 0308834A ES 308834 A ES308834 A ES 308834A ES 308834 A1 ES308834 A1 ES 308834A1
- Authority
- ES
- Spain
- Prior art keywords
- lug
- cylinder
- jack
- pump
- rod
- 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
-
- 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
- B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
- Types And Forms Of Lifts (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
An hydraulic jack comprises an outer cylinder 1 with a piston 2 attached to a rod 3 on a foot 3 1 . A base 4 mounted on the cylinder 1 carries a lug 5 which may be turned about the cylinder 1. A head assembly 6 with a cavity 7 closes thecylinder 1. A control spindle 10is actuated by an adjustable handle 50, Fig. 2 (not shown), to drive a rod 15 with a pump piston 16 in a horizontal cylinder bore 19. A valve system 21 to 28, Fig. 3 (not shown), is so arranged that when the jack is unloaded the pump is double acting, but under load the pump operates by differential single action. A control valve ball 30 may be released by a knob 33 to lower the load which may be supported on the lug 5 or a plate 8 on the head 6. The initial height of the lug 5 may be adjusted by tubular half-shells 47. The hydraulic fluid is contained in a pliable bladder 35 not containing air so that the jack may be used in any position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR962742A FR1393513A (en) | 1964-02-05 | 1964-02-05 | Lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES308834A1 true ES308834A1 (en) | 1965-06-16 |
Family
ID=8822497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0308834A Expired ES308834A1 (en) | 1964-02-05 | 1965-02-01 | Improved lifting device |
Country Status (11)
| Country | Link |
|---|---|
| BE (1) | BE659154A (en) |
| CH (1) | CH429074A (en) |
| ES (1) | ES308834A1 (en) |
| FI (1) | FI44843C (en) |
| FR (1) | FR1393513A (en) |
| GB (1) | GB1065106A (en) |
| IL (1) | IL22904A (en) |
| NL (1) | NL6501460A (en) |
| NO (1) | NO119758B (en) |
| OA (1) | OA01517A (en) |
| SE (1) | SE307437B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2649387B1 (en) * | 1989-07-07 | 1991-11-22 | Victory | IMPROVED HYDRAULIC JACK FOR THE LIFTING AND HANDLING OF HEAVY LOADS OF MULTIPLE TONNES |
-
1964
- 1964-02-05 FR FR962742A patent/FR1393513A/en not_active Expired
-
1965
- 1965-01-29 GB GB4140/65A patent/GB1065106A/en not_active Expired
- 1965-01-29 CH CH129865A patent/CH429074A/en unknown
- 1965-02-01 ES ES0308834A patent/ES308834A1/en not_active Expired
- 1965-02-02 FI FI650247A patent/FI44843C/en active
- 1965-02-02 BE BE659154D patent/BE659154A/xx unknown
- 1965-02-02 OA OA51342A patent/OA01517A/en unknown
- 1965-02-03 NO NO156617A patent/NO119758B/no unknown
- 1965-02-03 SE SE1390/65A patent/SE307437B/xx unknown
- 1965-02-03 IL IL22904A patent/IL22904A/en unknown
- 1965-02-05 NL NL6501460A patent/NL6501460A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH429074A (en) | 1967-01-31 |
| OA01517A (en) | 1969-07-21 |
| SE307437B (en) | 1969-01-07 |
| FR1393513A (en) | 1965-03-26 |
| FI44843C (en) | 1972-01-10 |
| FI44843B (en) | 1971-09-30 |
| NO119758B (en) | 1970-06-29 |
| NL6501460A (en) | 1965-08-06 |
| GB1065106A (en) | 1967-04-12 |
| IL22904A (en) | 1968-11-27 |
| BE659154A (en) | 1965-05-28 |
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