DE303426C - - Google Patents
Info
- Publication number
- DE303426C DE303426C DENDAT303426D DE303426DA DE303426C DE 303426 C DE303426 C DE 303426C DE NDAT303426 D DENDAT303426 D DE NDAT303426D DE 303426D A DE303426D A DE 303426DA DE 303426 C DE303426 C DE 303426C
- Authority
- DE
- Germany
- Prior art keywords
- screw
- spindle
- anchor
- screw nut
- screw spindle
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 2
- 238000005065 mining Methods 0.000 claims description 2
- 241000182341 Cubitermes group Species 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/008—Anchoring or tensioning means
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Clamps And Clips (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE303426C true DE303426C (US20050192411A1-20050901-C00001.png) |
Family
ID=557139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT303426D Active DE303426C (US20050192411A1-20050901-C00001.png) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE303426C (US20050192411A1-20050901-C00001.png) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE764943C (de) * | 1940-03-15 | 1953-07-27 | Eisenwerk Wanheim G M B H | Grubenstempel |
| DE920781C (de) * | 1951-08-12 | 1954-11-29 | Consolidation Bergbau Ag | Bohrlochanker fuer den Grubenausbau |
| US4257308A (en) * | 1978-01-20 | 1981-03-24 | Oernberg Stellan | Anchoring device for an opening, e.g. a tube end |
-
0
- DE DENDAT303426D patent/DE303426C/de active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE764943C (de) * | 1940-03-15 | 1953-07-27 | Eisenwerk Wanheim G M B H | Grubenstempel |
| DE920781C (de) * | 1951-08-12 | 1954-11-29 | Consolidation Bergbau Ag | Bohrlochanker fuer den Grubenausbau |
| US4257308A (en) * | 1978-01-20 | 1981-03-24 | Oernberg Stellan | Anchoring device for an opening, e.g. a tube end |
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