DE240071C - - Google Patents
Info
- Publication number
- DE240071C DE240071C DENDAT240071D DE240071DA DE240071C DE 240071 C DE240071 C DE 240071C DE NDAT240071 D DENDAT240071 D DE NDAT240071D DE 240071D A DE240071D A DE 240071DA DE 240071 C DE240071 C DE 240071C
- Authority
- DE
- Germany
- Prior art keywords
- hammer
- cutting
- boom
- support column
- guide piece
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000003245 coal Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/64—Slitting machines guided solely by hand and either carried by hand or mounted on supports
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE240071C true DE240071C (Sortimente) |
Family
ID=499463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT240071D Active DE240071C (Sortimente) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE240071C (Sortimente) |
-
0
- DE DENDAT240071D patent/DE240071C/de active Active
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