GB204714A - A hydraulic jack - Google Patents
A hydraulic jackInfo
- Publication number
- GB204714A GB204714A GB24058/23A GB2405823A GB204714A GB 204714 A GB204714 A GB 204714A GB 24058/23 A GB24058/23 A GB 24058/23A GB 2405823 A GB2405823 A GB 2405823A GB 204714 A GB204714 A GB 204714A
- Authority
- GB
- United Kingdom
- Prior art keywords
- passage
- valve
- reservoir
- piston
- handle
- 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)
- Taps Or Cocks (AREA)
Abstract
204,714. Le Guellec, J. Sept. 26, 1922, [Convention date]. Jacks.-In self contained hydraulic jacks the cylinder b, c is annular and surrounds the reservoir c<1>. Water is drawn from the reservoir through the passage e and past the ball valve g bv a pump f and is forced through the passage h and past the ball valve i to the underside of the piston d. A passage k containing a valve k' connects the cylinder directly to the passage e. When it is desired to lower, the tubular part F of the handle is removed from the lever f<1> and engaged with a pin f<3> on the head of the spindle of the valve k<1>. The handle is then turned to open the valve k<1> The handle can also be locked in a socket C in the base B and used to position the jack. An aperture l<1> in the top of the piston is closed by a member l mounted on the top of the reservoir when the piston is at the bottom of its stroke.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR204714X | 1922-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB204714A true GB204714A (en) | 1923-11-08 |
Family
ID=8880286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24058/23A Expired GB204714A (en) | 1922-09-26 | 1923-09-26 | A hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB204714A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2147487A (en) * | 1982-04-21 | 1985-05-15 | Konetekijat Oy | A device for adjusting the draw bar of a tractor |
-
1923
- 1923-09-26 GB GB24058/23A patent/GB204714A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2147487A (en) * | 1982-04-21 | 1985-05-15 | Konetekijat Oy | A device for adjusting the draw bar of a tractor |
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