BE460385A - - Google Patents
Info
- Publication number
- BE460385A BE460385A BE460385DA BE460385A BE 460385 A BE460385 A BE 460385A BE 460385D A BE460385D A BE 460385DA BE 460385 A BE460385 A BE 460385A
- Authority
- BE
- Belgium
- Prior art keywords
- head
- cylinders
- machine
- cylinder
- coal
- Prior art date
Links
- 239000003245 coal Substances 0.000 claims description 19
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- 238000005065 mining Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000740 bleeding effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/10—Machines which completely free the mineral from the seam by both slitting and breaking-down
- E21C27/14—Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by force or pressure applied to side of slit, e.g. by wedges
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)
- Excavating Of Shafts Or Tunnels (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE460385A true BE460385A (OSRAM) |
Family
ID=113257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE460385D BE460385A (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE460385A (OSRAM) |
-
0
- BE BE460385D patent/BE460385A/fr unknown
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