BE439373A - - Google Patents
Info
- Publication number
- BE439373A BE439373A BE439373DA BE439373A BE 439373 A BE439373 A BE 439373A BE 439373D A BE439373D A BE 439373DA BE 439373 A BE439373 A BE 439373A
- Authority
- BE
- Belgium
- Prior art keywords
- prop
- recess
- clamping element
- wedge
- guides
- Prior art date
Links
- 238000012856 packing Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/42—Telescopic props with parts held relatively to each other by friction or gripping with special parts to influence the friction
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 |
|---|---|
| BE439373A true BE439373A (h) |
Family
ID=97370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE439373D BE439373A (h) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE439373A (h) |
-
0
- BE BE439373D patent/BE439373A/fr unknown
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