DE218621C - - Google Patents
Info
- Publication number
- DE218621C DE218621C DENDAT218621D DE218621DA DE218621C DE 218621 C DE218621 C DE 218621C DE NDAT218621 D DENDAT218621 D DE NDAT218621D DE 218621D A DE218621D A DE 218621DA DE 218621 C DE218621 C DE 218621C
- Authority
- DE
- Germany
- Prior art keywords
- link arm
- stop
- coal
- suspension
- arrow
- 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
- 239000003245 coal Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000001848 dysentery Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/64—Slitting machines guided solely by hand and either carried by hand or mounted on supports
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)
- Percussive Tools And Related Accessories (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE218621C true DE218621C (enrdf_load_html_response) |
Family
ID=479826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT218621D Active DE218621C (enrdf_load_html_response) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE218621C (enrdf_load_html_response) |
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0
- DE DENDAT218621D patent/DE218621C/de active Active