BE444004A - - Google Patents
Info
- Publication number
- BE444004A BE444004A BE444004DA BE444004A BE 444004 A BE444004 A BE 444004A BE 444004D A BE444004D A BE 444004DA BE 444004 A BE444004 A BE 444004A
- Authority
- BE
- Belgium
- Prior art keywords
- upright
- head
- props
- mine prop
- roof
- Prior art date
Links
- 238000005065 mining Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 210000004417 patella Anatomy 0.000 description 1
- 238000007665 sagging Methods 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
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
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)
- Tents Or Canopies (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE444004A true BE444004A (OSRAM) |
Family
ID=100774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE444004D BE444004A (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE444004A (OSRAM) |
-
0
- BE BE444004D patent/BE444004A/fr unknown
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