GB312038A - - Google Patents
Info
- Publication number
- GB312038A GB312038A GB37855/28A GB3785528A GB312038A GB 312038 A GB312038 A GB 312038A GB 37855/28 A GB37855/28 A GB 37855/28A GB 3785528 A GB3785528 A GB 3785528A GB 312038 A GB312038 A GB 312038A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- pistons
- passages
- partition
- pressure fluid
- 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
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/14—Control devices for the reciprocating piston
- B25D9/16—Valve arrangements therefor
- B25D9/18—Valve arrangements therefor involving a piston-type slide valve
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Earth Drilling (AREA)
- Actuator (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US312038TA | 1928-05-19 | 1928-05-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB312038A true GB312038A (sv) | 1930-03-21 |
Family
ID=31945883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB37855/28A Expired GB312038A (sv) | 1928-05-19 | 1928-12-21 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB312038A (sv) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3796271A (en) * | 1972-03-10 | 1974-03-12 | L Amtsberg | Rock drill having a triple coaxial hammer |
-
1928
- 1928-12-21 GB GB37855/28A patent/GB312038A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3796271A (en) * | 1972-03-10 | 1974-03-12 | L Amtsberg | Rock drill having a triple coaxial hammer |
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