BE485584A - - Google Patents
Info
- Publication number
- BE485584A BE485584A BE485584DA BE485584A BE 485584 A BE485584 A BE 485584A BE 485584D A BE485584D A BE 485584DA BE 485584 A BE485584 A BE 485584A
- Authority
- BE
- Belgium
- Prior art keywords
- extension
- prop
- roof
- support plate
- working position
- Prior art date
Links
- 238000005452 bending Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Wind Motors (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE485584A true BE485584A (enrdf_load_stackoverflow) |
Family
ID=131466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE485584D BE485584A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE485584A (enrdf_load_stackoverflow) |
-
0
- BE BE485584D patent/BE485584A/fr unknown
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