BE470403A - - Google Patents
Info
- Publication number
- BE470403A BE470403A BE470403DA BE470403A BE 470403 A BE470403 A BE 470403A BE 470403D A BE470403D A BE 470403DA BE 470403 A BE470403 A BE 470403A
- Authority
- BE
- Belgium
- Prior art keywords
- rod
- punch
- fork
- washers
- lifting means
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 1
- 239000004606 Fillers/Extenders Substances 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid 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
- E21D15/58—Devices for setting props or chocks
- E21D15/581—Devices for setting props or chocks in which the props are pre- loaded
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)
- Media Introduction/Drainage Providing Device (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE470403A true BE470403A (de) |
Family
ID=120580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE470403D BE470403A (de) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE470403A (de) |
-
0
- BE BE470403D patent/BE470403A/fr unknown
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