BE534653A - - Google Patents
Info
- Publication number
- BE534653A BE534653A BE534653DA BE534653A BE 534653 A BE534653 A BE 534653A BE 534653D A BE534653D A BE 534653DA BE 534653 A BE534653 A BE 534653A
- Authority
- BE
- Belgium
- Prior art keywords
- wedge
- profile
- transverse
- wings
- prop
- Prior art date
Links
- 230000000694 effects Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 244000182067 Fraxinus ornus Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003466 welding Methods 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
- E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section
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)
- Clamps And Clips (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE534653A true BE534653A (https=) |
Family
ID=165934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE534653D BE534653A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE534653A (https=) |
-
0
- BE BE534653D patent/BE534653A/fr unknown
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