DE126948C - - Google Patents
Info
- Publication number
- DE126948C DE126948C DENDAT126948D DE126948DA DE126948C DE 126948 C DE126948 C DE 126948C DE NDAT126948 D DENDAT126948 D DE NDAT126948D DE 126948D A DE126948D A DE 126948DA DE 126948 C DE126948 C DE 126948C
- Authority
- DE
- Germany
- Prior art keywords
- springs
- buffer
- counter
- buffer springs
- spring
- 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
- 238000005553 drilling Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims 1
- 230000003313 weakening effect Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B1/00—Percussion drilling
- E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE126948C true DE126948C (enrdf_load_stackoverflow) |
Family
ID=395571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT126948D Active DE126948C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE126948C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT126948D patent/DE126948C/de active Active
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