DE128528C - - Google Patents
Info
- Publication number
- DE128528C DE128528C DENDAT128528D DE128528DA DE128528C DE 128528 C DE128528 C DE 128528C DE NDAT128528 D DENDAT128528 D DE NDAT128528D DE 128528D A DE128528D A DE 128528DA DE 128528 C DE128528 C DE 128528C
- Authority
- DE
- Germany
- Prior art keywords
- spindle
- screw spindle
- ratchet
- nut lock
- thread
- 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
- 239000011435 rock Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000002023 wood 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
- 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)
- Gripping On Spindles (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE128528C true DE128528C (fi) |
Family
ID=397050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT128528D Active DE128528C (fi) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE128528C (fi) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0003687A1 (en) * | 1978-02-13 | 1979-08-22 | Keystone International, Inc. | Manual control apparatus |
-
0
- DE DENDAT128528D patent/DE128528C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0003687A1 (en) * | 1978-02-13 | 1979-08-22 | Keystone International, Inc. | Manual control apparatus |
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