GB174586A - Improvements in or relating to pneumatic hammers - Google Patents
Improvements in or relating to pneumatic hammersInfo
- Publication number
- GB174586A GB174586A GB276/22A GB27622A GB174586A GB 174586 A GB174586 A GB 174586A GB 276/22 A GB276/22 A GB 276/22A GB 27622 A GB27622 A GB 27622A GB 174586 A GB174586 A GB 174586A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- exhaust
- port
- tools
- movement
- 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
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Actuator (AREA)
Abstract
174,586. Bailly, A. Jan. 27, 1921, [Convention date]. Percussive hand tools. - In tools of the kind wherein a differential piston is reciprocated by fluid pressure which exhausts through an inwardly-projecting tube entering the piston, automatic stoppage of the piston on disengagement of the tool, is effected by means of a rearward extension provided with a port C which normally registers with a port A communicating with the exhaust port n. An abnormal piston movement to the left cuts off the exhaust and opens the right-hand cylinder end to the supply passage f. In the modification Fig. 3, the piston is recessed at C' and the projection k grooved to effect the normal exhaust. Under abnormal movement, the parts B', D' engage and cut off the exhaust.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR174586X | 1921-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB174586A true GB174586A (en) | 1922-08-10 |
Family
ID=8877651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB276/22A Expired GB174586A (en) | 1921-01-27 | 1922-01-04 | Improvements in or relating to pneumatic hammers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB174586A (en) |
-
1922
- 1922-01-04 GB GB276/22A patent/GB174586A/en not_active Expired
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