BE680084A - - Google Patents
Info
- Publication number
- BE680084A BE680084A BE680084DA BE680084A BE 680084 A BE680084 A BE 680084A BE 680084D A BE680084D A BE 680084DA BE 680084 A BE680084 A BE 680084A
- Authority
- BE
- Belgium
- Prior art keywords
- plane
- coal
- support
- tools
- supports
- Prior art date
Links
- 239000003245 coal Substances 0.000 claims description 22
- 210000003462 vein Anatomy 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 5
- 239000003610 charcoal Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000000926 separation method 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
- E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
- E21C27/34—Machine propelled along the working face by cable or chain
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)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE680084 | 1966-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE680084A true BE680084A (enrdf_load_stackoverflow) | 1966-10-26 |
Family
ID=3848588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE680084D BE680084A (enrdf_load_stackoverflow) | 1966-04-26 | 1966-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE680084A (enrdf_load_stackoverflow) |
-
1966
- 1966-04-26 BE BE680084D patent/BE680084A/fr unknown
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