BE497236A - - Google Patents
Info
- Publication number
- BE497236A BE497236A BE497236DA BE497236A BE 497236 A BE497236 A BE 497236A BE 497236D A BE497236D A BE 497236DA BE 497236 A BE497236 A BE 497236A
- Authority
- BE
- Belgium
- Prior art keywords
- tool
- cutting head
- cutting
- members
- support arm
- Prior art date
Links
- 238000005520 cutting process Methods 0.000 claims description 66
- 239000003245 coal Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 3
- 238000003307 slaughter Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- LYAVXWPXKIFHBU-UHFFFAOYSA-N N-{2-[(1,2-diphenylhydrazinyl)carbonyl]-2-hydroxyhexanoyl}-6-aminohexanoic acid Chemical class C=1C=CC=CC=1N(C(=O)C(O)(C(=O)NCCCCCC(O)=O)CCCC)NC1=CC=CC=C1 LYAVXWPXKIFHBU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000035939 shock 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
- E21C27/20—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)
- Milling Processes (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE497236A true BE497236A (enrdf_load_html_response) |
Family
ID=140254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE497236D BE497236A (enrdf_load_html_response) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE497236A (enrdf_load_html_response) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2803445A (en) * | 1952-09-11 | 1957-08-20 | Orville J Borrowdale | Freely swinging rotating antibridging device for bulk material |
| US3190376A (en) * | 1962-01-30 | 1965-06-22 | Eugene A Christensen | Boring head |
-
0
- BE BE497236D patent/BE497236A/fr unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2803445A (en) * | 1952-09-11 | 1957-08-20 | Orville J Borrowdale | Freely swinging rotating antibridging device for bulk material |
| US3190376A (en) * | 1962-01-30 | 1965-06-22 | Eugene A Christensen | Boring head |
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