DE232490C - - Google Patents
Info
- Publication number
- DE232490C DE232490C DENDAT232490D DE232490DA DE232490C DE 232490 C DE232490 C DE 232490C DE NDAT232490 D DENDAT232490 D DE NDAT232490D DE 232490D A DE232490D A DE 232490DA DE 232490 C DE232490 C DE 232490C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- spring
- compressed air
- hand
- central position
- 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.)
- Active
Links
- 230000010355 oscillation Effects 0.000 claims description 6
- 238000009527 percussion Methods 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/06—Audible signalling systems; Audible personal calling systems using hydraulic transmission; using pneumatic transmission
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE232490C true DE232490C (enrdf_load_stackoverflow) |
Family
ID=492514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT232490D Active DE232490C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE232490C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT232490D patent/DE232490C/de active Active
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