BE439372A - - Google Patents
Info
- Publication number
- BE439372A BE439372A BE439372DA BE439372A BE 439372 A BE439372 A BE 439372A BE 439372D A BE439372D A BE 439372DA BE 439372 A BE439372 A BE 439372A
- Authority
- BE
- Belgium
- Prior art keywords
- column
- section
- prop
- zigzag
- fixed column
- Prior art date
Links
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000003754 machining Methods 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
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
- E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section
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 |
|---|---|
| BE439372A true BE439372A (de) |
Family
ID=97369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE439372D BE439372A (de) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE439372A (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE971033C (de) * | 1953-08-11 | 1958-12-04 | Hammerwerk Richard Naescher | Nachgiebiger Grubenstempel |
-
0
- BE BE439372D patent/BE439372A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE971033C (de) * | 1953-08-11 | 1958-12-04 | Hammerwerk Richard Naescher | Nachgiebiger Grubenstempel |
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