DE99864C - - Google Patents
Info
- Publication number
- DE99864C DE99864C DENDAT99864D DE99864DA DE99864C DE 99864 C DE99864 C DE 99864C DE NDAT99864 D DENDAT99864 D DE NDAT99864D DE 99864D A DE99864D A DE 99864DA DE 99864 C DE99864 C DE 99864C
- Authority
- DE
- Germany
- Prior art keywords
- wedge
- wedges
- spindle
- nut
- hand
- 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
- PFMTUGNLBQSHQC-UHFFFAOYSA-N 4,5-diazafluoren-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CN=C3C2=N1 PFMTUGNLBQSHQC-UHFFFAOYSA-N 0.000 claims 1
- 239000003245 coal Substances 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 claims 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/04—Other methods or devices for dislodging with or without loading by devices with parts pressed mechanically against the wall of a borehole or a slit
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE99864C true DE99864C (enrdf_load_stackoverflow) |
Family
ID=370707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT99864D Active DE99864C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE99864C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT99864D patent/DE99864C/de active Active
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