BE550002A - - Google Patents
Info
- Publication number
- BE550002A BE550002A BE550002DA BE550002A BE 550002 A BE550002 A BE 550002A BE 550002D A BE550002D A BE 550002DA BE 550002 A BE550002 A BE 550002A
- Authority
- BE
- Belgium
- Prior art keywords
- heads
- boxes
- machine
- desc
- bearings
- Prior art date
Links
- 239000003245 coal Substances 0.000 description 10
- 238000005065 mining Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 102000003673 Symporters Human genes 0.000 description 1
- 108090000088 Symporters Proteins 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000003197 gene knockdown Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000013138 pruning Methods 0.000 description 1
- 210000003660 reticulum Anatomy 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000009423 ventilation Methods 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
- E21C27/20—Mineral freed by means not involving slitting
- E21C27/22—Mineral freed by means not involving slitting by rotary drills with breaking-down means, e.g. wedge-shaped drills, i.e. the rotary axis of the tool carrier being substantially perpendicular to the working face, e.g. MARIETTA-type
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 |
|---|---|
| BE550002A true BE550002A (enrdf_load_stackoverflow) |
Family
ID=176036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE550002D BE550002A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE550002A (enrdf_load_stackoverflow) |
-
0
- BE BE550002D patent/BE550002A/fr unknown
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