BE510457A - - Google Patents
Info
- Publication number
- BE510457A BE510457A BE510457DA BE510457A BE 510457 A BE510457 A BE 510457A BE 510457D A BE510457D A BE 510457DA BE 510457 A BE510457 A BE 510457A
- Authority
- BE
- Belgium
- Prior art keywords
- teeth
- series
- upright
- bearing
- housing
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims description 2
- 239000000470 constituent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation 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
- E21D15/42—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)
- Vibration Dampers (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE510457A true BE510457A (OSRAM) |
Family
ID=149559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE510457D BE510457A (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE510457A (OSRAM) |
-
0
- BE BE510457D patent/BE510457A/fr unknown
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