BE469409A - - Google Patents
Info
- Publication number
- BE469409A BE469409A BE469409DA BE469409A BE 469409 A BE469409 A BE 469409A BE 469409D A BE469409D A BE 469409DA BE 469409 A BE469409 A BE 469409A
- Authority
- BE
- Belgium
- Prior art keywords
- head
- shaped
- machine
- central part
- elements
- Prior art date
Links
- 238000005065 mining Methods 0.000 claims description 7
- 230000035939 shock Effects 0.000 claims description 2
- 238000009966 trimming Methods 0.000 claims 1
- 239000003245 coal Substances 0.000 description 12
- 230000007246 mechanism Effects 0.000 description 5
- 238000007790 scraping Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21C27/46—Mineral freed by means not involving slitting by percussed planing 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)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE469409A true BE469409A (enrdf_load_html_response) |
Family
ID=119865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE469409D BE469409A (enrdf_load_html_response) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE469409A (enrdf_load_html_response) |
-
0
- BE BE469409D patent/BE469409A/fr unknown
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