BE444954A - - Google Patents
Info
- Publication number
- BE444954A BE444954A BE444954DA BE444954A BE 444954 A BE444954 A BE 444954A BE 444954D A BE444954D A BE 444954DA BE 444954 A BE444954 A BE 444954A
- Authority
- BE
- Belgium
- Prior art keywords
- prop
- clamping
- wedges
- metal
- internal element
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims description 22
- 230000002687 intercalation Effects 0.000 claims 1
- 238000009830 intercalation Methods 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 240000005979 Hordeum vulgare Species 0.000 description 1
- 235000007340 Hordeum vulgare Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 230000002787 reinforcement Effects 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
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations
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 |
|---|---|
| BE444954A true BE444954A (de) |
Family
ID=101473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE444954D BE444954A (de) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE444954A (de) |
-
0
- BE BE444954D patent/BE444954A/fr unknown
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