BE428778A - - Google Patents
Info
- Publication number
- BE428778A BE428778A BE428778DA BE428778A BE 428778 A BE428778 A BE 428778A BE 428778D A BE428778D A BE 428778DA BE 428778 A BE428778 A BE 428778A
- Authority
- BE
- Belgium
- Prior art keywords
- chain
- machine
- arm
- cutting
- coal
- Prior art date
Links
- 239000003245 coal Substances 0.000 claims description 29
- 210000003462 vein Anatomy 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 230000002441 reversible effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 7
- 210000000078 claw Anatomy 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000013641 positive control Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000717 retained 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
- E21C27/02—Machines which completely free the mineral from the seam solely by slitting
- E21C27/04—Machines which completely free the mineral from the seam solely by slitting by a single chain guided on a frame with or without auxiliary slitting means
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)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE428778A true BE428778A (enrdf_load_stackoverflow) |
Family
ID=89088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE428778D BE428778A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE428778A (enrdf_load_stackoverflow) |
-
0
- BE BE428778D patent/BE428778A/fr unknown
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