DE198430C - - Google Patents
Info
- Publication number
- DE198430C DE198430C DENDAT198430D DE198430DA DE198430C DE 198430 C DE198430 C DE 198430C DE NDAT198430 D DENDAT198430 D DE NDAT198430D DE 198430D A DE198430D A DE 198430DA DE 198430 C DE198430 C DE 198430C
- Authority
- DE
- Germany
- Prior art keywords
- frame
- cutting
- shaft
- machine
- crowbars
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000033001 locomotion Effects 0.000 claims description 20
- 239000003245 coal Substances 0.000 claims description 9
- 238000005065 mining Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 210000003128 head Anatomy 0.000 description 22
- 241000282472 Canis lupus familiaris Species 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 210000003739 neck Anatomy 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000004519 manufacturing process 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
- E21C27/10—Machines which completely free the mineral from the seam by both slitting and breaking-down
- E21C27/12—Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools
- E21C27/128—Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools with breaking-down members functioning on the slitting level
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 |
|---|---|
| DE198430C true DE198430C (fr) |
Family
ID=461228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT198430D Active DE198430C (fr) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE198430C (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE839024C (de) * | 1949-10-06 | 1952-05-15 | Boelkow Ludwig | Selbsttaetiger Auflader fuer Schuettgut |
-
0
- DE DENDAT198430D patent/DE198430C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE839024C (de) * | 1949-10-06 | 1952-05-15 | Boelkow Ludwig | Selbsttaetiger Auflader fuer Schuettgut |
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