DE171349C - - Google Patents
Info
- Publication number
- DE171349C DE171349C DE1905171349D DE171349DA DE171349C DE 171349 C DE171349 C DE 171349C DE 1905171349 D DE1905171349 D DE 1905171349D DE 171349D A DE171349D A DE 171349DA DE 171349 C DE171349 C DE 171349C
- Authority
- DE
- Germany
- Prior art keywords
- magnetic needle
- plate
- housing
- needle
- bolt
- 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.)
- Expired - Lifetime
Links
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007779 soft material 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
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/026—Determining slope or direction of penetrated ground layers
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT28532D AT28532B (de) | 1905-01-10 | 1906-04-21 | Vorrichtung zum Ermitteln des Einfallens der Schichten in Bohrlöchern. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE171349C true DE171349C (enrdf_load_stackoverflow) |
Family
ID=436325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1905171349D Expired - Lifetime DE171349C (enrdf_load_stackoverflow) | 1905-01-10 | 1905-01-10 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE171349C (enrdf_load_stackoverflow) |
-
1905
- 1905-01-10 DE DE1905171349D patent/DE171349C/de not_active Expired - Lifetime
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