GB1369540A - Ram device - Google Patents
Ram deviceInfo
- Publication number
- GB1369540A GB1369540A GB2269372A GB2269372A GB1369540A GB 1369540 A GB1369540 A GB 1369540A GB 2269372 A GB2269372 A GB 2269372A GB 2269372 A GB2269372 A GB 2269372A GB 1369540 A GB1369540 A GB 1369540A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- sleeve
- valve
- valves
- valve assembly
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/10—Power-driven drivers with pressure-actuated hammer, i.e. the pressure fluid acting directly on the hammer structure
Abstract
1369540 Pile drivers APPINGEDAMMER BRONSMOTORENFABRIEK NV 15 May 1972 [1 June 1971 31 Oct 1971] 22693/72 Heading B3H [Also in Division F2] A compressed air operated pile driver with a free falling ram hammer has a piston-cylinder lifting assembly to which air is selectively supplied and exhausted under the control of a valve assembly connected to the cylinder and comprising a chamber with an inlet valve and an outlet valve coupled together so that one is open when the other is closed. In a simple form the valve assembly has a compressed air inlet 4 and outlets 5 to the cylinder. The ducts are in the wall of a chamber 3 which is alternately pressurized and exhausted by valves 7, 9. The valves are coupled by a rod 10 which has a balancing piston 14. The rod is actuated automatically or manually. The outlets 5 are connected by pipes 25, Fig. 5, to lifting cylinders 24 whose pistons 26 are connected by rods 28 to the ram hammer 30. The valves 7, 9 need not be rigidly connected but may employ a spring system to ensure that one valve is fully closed before the other is opened, Figs. 2-4 (not shown) or be separate and operated by a cam-shaft. In order to avoid long lengths of pipe between the valve assembly and the lifting cylinder in an alternative embodiment, Fig. 7, the chamber of the valve assembly is formed at the lower end of the cylinder. The valves are in the form of a sleeve 32 which controls inlet port 4 and exhaust ports 8 under the control of a rod 10. In a further modification, Fig. 9, the valve sleeve 32 is moved under the control of air pressure supplied to a chamber 44 under the closed end 42 of the sleeve. Alternatively the sleeve may have a flange (42), Figs. 10 and 11 (not shown), which acts as a piston to raise and/or lower the sleeve. The valve assembly and lifting cylinder may comprise a guide for the ram hammer (26), Fig. 10 (not shown), which extends through the valve sleeve for impacting against an anvil (38). In the latter case only one cylinder need be provided.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7107462A NL7107462A (en) | 1971-06-01 | 1971-06-01 | |
| NL7114990A NL7114990A (en) | 1971-10-31 | 1971-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1369540A true GB1369540A (en) | 1974-10-09 |
Family
ID=26644663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2269372A Expired GB1369540A (en) | 1971-06-01 | 1972-05-15 | Ram device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5536774B1 (en) |
| DE (1) | DE2224741A1 (en) |
| GB (1) | GB1369540A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989006754A1 (en) * | 1988-01-13 | 1989-07-27 | Pimatic Oy | Pneumatic valve-cylinder combination |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL182826C (en) * | 1976-06-15 | 1988-05-16 | Alexander Julien Verstraeten | FLUID OPERATING HEATING DEVICE. |
| GB8304691D0 (en) * | 1983-02-19 | 1983-03-23 | Bsp Int Foundation | Valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS459509Y1 (en) * | 1968-02-27 | 1970-05-04 |
-
1972
- 1972-05-15 GB GB2269372A patent/GB1369540A/en not_active Expired
- 1972-05-20 DE DE19722224741 patent/DE2224741A1/en not_active Ceased
- 1972-05-23 JP JP5116372A patent/JPS5536774B1/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989006754A1 (en) * | 1988-01-13 | 1989-07-27 | Pimatic Oy | Pneumatic valve-cylinder combination |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2224741A1 (en) | 1973-01-04 |
| JPS5536774B1 (en) | 1980-09-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |