BE504363A - - Google Patents
Info
- Publication number
- BE504363A BE504363A BE504363DA BE504363A BE 504363 A BE504363 A BE 504363A BE 504363D A BE504363D A BE 504363DA BE 504363 A BE504363 A BE 504363A
- Authority
- BE
- Belgium
- Prior art keywords
- wedge
- openings
- friction
- locking device
- strips
- Prior art date
Links
- 238000005461 lubrication Methods 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000002023 wood Substances 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)
- Connection Of Plates (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE504363A true BE504363A (https=) |
Family
ID=145242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE504363D BE504363A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE504363A (https=) |
-
0
- BE BE504363D patent/BE504363A/fr unknown
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