DE221751C - - Google Patents
Info
- Publication number
- DE221751C DE221751C DENDAT221751D DE221751DA DE221751C DE 221751 C DE221751 C DE 221751C DE NDAT221751 D DENDAT221751 D DE NDAT221751D DE 221751D A DE221751D A DE 221751DA DE 221751 C DE221751 C DE 221751C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- ratchet
- springs
- impact
- pawls
- 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
- 230000033001 locomotion Effects 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 241000131971 Bradyrhizobiaceae Species 0.000 description 1
- 241000221535 Pucciniales Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001419 dependent effect Effects 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
- E21B6/00—Drives for drilling with combined rotary and percussive action
- E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
- E21B6/08—Separate drives for percussion and rotation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Press Drives And Press Lines (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE221751C true DE221751C (enrdf_load_stackoverflow) |
Family
ID=482703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT221751D Active DE221751C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE221751C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT221751D patent/DE221751C/de active Active
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