GB156990A - Improvements relating to pneumatic hammers - Google Patents
Improvements relating to pneumatic hammersInfo
- Publication number
- GB156990A GB156990A GB101020A GB101020A GB156990A GB 156990 A GB156990 A GB 156990A GB 101020 A GB101020 A GB 101020A GB 101020 A GB101020 A GB 101020A GB 156990 A GB156990 A GB 156990A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- cylinder
- exhaust
- faces
- improvements relating
- 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
- B25D9/20—Valve arrangements therefor involving a tubular-type slide valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2209/00—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D2209/005—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously having a tubular-slide valve, which is coaxial with the piston
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
156,990. White, A. E., (Etablissements H. Dirick et L. Lapaille). Jan. 12, 1920. Fluid-actuated gears.-In a percussive tool, the distributing-valve 7 comprises a hollow cylinder with an exterior collar grooved at 26, and provided with actuating-faces 13, 14 constantly subjected to fluid pressure and alternately put to exhaust to reverse the valve. When the main exhaust 15 is opened by the movement of the piston in either direction, the depression in the cylinder affects the faces 13, 14 through openings 18, 43 respectively in the valve. The main supply passes the right-hand end of the valve and by passage 12 to the forward end of the cylinder, and through the valve and passages 10, 10<1> to the rear end of the cylinder. An auxiliary exhaust is controlled by a valve groove 26 which alternately puts the ports 23, 24, which communicate. with either end of the cylinder, in communication with an outlet 22. In a modification, the valve 7 is coaxial with, and arranged around, the cylinder bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB101020A GB156990A (en) | 1920-01-12 | 1920-01-12 | Improvements relating to pneumatic hammers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB101020A GB156990A (en) | 1920-01-12 | 1920-01-12 | Improvements relating to pneumatic hammers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB156990A true GB156990A (en) | 1921-01-20 |
Family
ID=9714555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB101020A Expired GB156990A (en) | 1920-01-12 | 1920-01-12 | Improvements relating to pneumatic hammers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB156990A (en) |
-
1920
- 1920-01-12 GB GB101020A patent/GB156990A/en not_active Expired
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