DE245831C - - Google Patents
Info
- Publication number
- DE245831C DE245831C DENDAT245831D DE245831DA DE245831C DE 245831 C DE245831 C DE 245831C DE NDAT245831 D DENDAT245831 D DE NDAT245831D DE 245831D A DE245831D A DE 245831DA DE 245831 C DE245831 C DE 245831C
- Authority
- DE
- Germany
- Prior art keywords
- handle
- designed
- drill
- increasing
- drilling
- 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 6
- 210000003813 thumb Anatomy 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims 1
- 210000002414 leg Anatomy 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000000689 upper leg Anatomy 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
- E21B1/04—Devices for reversing the movement of the rod or cable at the surface
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 |
|---|---|
| DE245831C true DE245831C (forum.php) |
Family
ID=504756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT245831D Active DE245831C (forum.php) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE245831C (forum.php) |
-
0
- DE DENDAT245831D patent/DE245831C/de active Active
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