DE254570C - - Google Patents
Info
- Publication number
- DE254570C DE254570C DENDAT254570D DE254570DA DE254570C DE 254570 C DE254570 C DE 254570C DE NDAT254570 D DENDAT254570 D DE NDAT254570D DE 254570D A DE254570D A DE 254570DA DE 254570 C DE254570 C DE 254570C
- Authority
- DE
- Germany
- Prior art keywords
- spindle
- lifting rod
- lifting
- bear
- rods
- 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
- 230000001960 triggered effect Effects 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims 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
- E21B11/00—Other drilling tools
- E21B11/02—Boring rams
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 |
|---|---|
| DE254570C true DE254570C (en:Method) |
Family
ID=512749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT254570D Active DE254570C (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE254570C (en:Method) |
-
0
- DE DENDAT254570D patent/DE254570C/de active Active
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