DE251452C - - Google Patents
Info
- Publication number
- DE251452C DE251452C DENDAT251452D DE251452DA DE251452C DE 251452 C DE251452 C DE 251452C DE NDAT251452 D DENDAT251452 D DE NDAT251452D DE 251452D A DE251452D A DE 251452DA DE 251452 C DE251452 C DE 251452C
- Authority
- DE
- Germany
- Prior art keywords
- cutting
- detent
- machine
- cutting tool
- drill
- 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
- 239000011435 rock Substances 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 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)
- Earth Drilling (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE251452C true DE251452C (da) |
Family
ID=509895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT251452D Active DE251452C (da) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE251452C (da) |
-
0
- DE DENDAT251452D patent/DE251452C/de active Active
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