BE539418A - - Google Patents
Info
- Publication number
- BE539418A BE539418A BE539418DA BE539418A BE 539418 A BE539418 A BE 539418A BE 539418D A BE539418D A BE 539418DA BE 539418 A BE539418 A BE 539418A
- Authority
- BE
- Belgium
- Prior art keywords
- jaws
- jaw
- clamping device
- roll
- props
- Prior art date
Links
- 238000009434 installation Methods 0.000 claims 1
- 238000005065 mining Methods 0.000 claims 1
- 101150093826 par1 gene Proteins 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 210000002268 wool Anatomy 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
-
- 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
- E21D15/34—Telescopic props with parts held relatively to each other by friction or gripping by axially- moving balls, rollers, or the like
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 |
|---|---|
| BE539418A true BE539418A (enrdf_load_stackoverflow) |
Family
ID=169135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE539418D BE539418A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE539418A (enrdf_load_stackoverflow) |
-
0
- BE BE539418D patent/BE539418A/fr unknown
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