DE243223C - - Google Patents
Info
- Publication number
- DE243223C DE243223C DENDAT243223D DE243223DA DE243223C DE 243223 C DE243223 C DE 243223C DE NDAT243223 D DENDAT243223 D DE NDAT243223D DE 243223D A DE243223D A DE 243223DA DE 243223 C DE243223 C DE 243223C
- Authority
- DE
- Germany
- Prior art keywords
- spindle
- hand
- drilling
- sleeve
- nut halves
- 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 14
- 239000011435 rock Substances 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 241000131971 Bradyrhizobiaceae Species 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/081—Screw-and-nut feed mechanisms
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 |
|---|---|
| DE243223C true DE243223C (forum.php) |
Family
ID=502366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT243223D Active DE243223C (forum.php) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE243223C (forum.php) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE827042C (de) * | 1946-07-17 | 1952-01-07 | Chicago Pneumatic Tool Co | Gesteinsdrehbohrmaschine mit Vorschubspindel und Spuelwasseranschlusskopf |
| US4352300A (en) * | 1980-08-21 | 1982-10-05 | Vitafin N.V. | Combined linear and circular drive mechanism |
-
0
- DE DENDAT243223D patent/DE243223C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE827042C (de) * | 1946-07-17 | 1952-01-07 | Chicago Pneumatic Tool Co | Gesteinsdrehbohrmaschine mit Vorschubspindel und Spuelwasseranschlusskopf |
| US4352300A (en) * | 1980-08-21 | 1982-10-05 | Vitafin N.V. | Combined linear and circular drive mechanism |
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