DE253702C - - Google Patents
Info
- Publication number
- DE253702C DE253702C DENDAT253702D DE253702DA DE253702C DE 253702 C DE253702 C DE 253702C DE NDAT253702 D DENDAT253702 D DE NDAT253702D DE 253702D A DE253702D A DE 253702DA DE 253702 C DE253702 C DE 253702C
- Authority
- DE
- Germany
- Prior art keywords
- rod
- angle lever
- push
- machines
- pull rod
- 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
- 238000005553 drilling Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000001404 mediated effect Effects 0.000 claims 1
- 241000131971 Bradyrhizobiaceae Species 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Drilling And Boring (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE253702C true DE253702C (enExample) |
Family
ID=511963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT253702D Active DE253702C (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE253702C (enExample) |
-
0
- DE DENDAT253702D patent/DE253702C/de active Active
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