BE432038A - - Google Patents
Info
- Publication number
- BE432038A BE432038A BE432038DA BE432038A BE 432038 A BE432038 A BE 432038A BE 432038D A BE432038D A BE 432038DA BE 432038 A BE432038 A BE 432038A
- Authority
- BE
- Belgium
- Prior art keywords
- wedge
- prop
- key
- collar
- mine prop
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000000470 constituent Substances 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 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
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)
- Mutual Connection Of Rods And Tubes (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE432038A true BE432038A (cg-RX-API-DMAC10.html) |
Family
ID=91710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE432038D BE432038A (cg-RX-API-DMAC10.html) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE432038A (cg-RX-API-DMAC10.html) |
-
0
- BE BE432038D patent/BE432038A/fr unknown
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