GB1050524A - - Google Patents
Info
- Publication number
- GB1050524A GB1050524A GB1050524DA GB1050524A GB 1050524 A GB1050524 A GB 1050524A GB 1050524D A GB1050524D A GB 1050524DA GB 1050524 A GB1050524 A GB 1050524A
- Authority
- GB
- United Kingdom
- Prior art keywords
- abutment
- prop
- extension
- sections
- hydraulic pit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003245 coal Substances 0.000 abstract 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
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- 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
- E21D15/48—Chocks or the like
- E21D15/486—Chocks or the like with essential hydraulic or pneumatic details
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)
- Jib Cranes (AREA)
Publications (1)
Publication Number | Publication Date |
---|---|
GB1050524A true GB1050524A (de) |
Family
ID=1755838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1050524D Active GB1050524A (de) |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1050524A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992001858A1 (de) * | 1990-07-24 | 1992-02-06 | Nlw Fördertechnik Gmbh | Mehrstufiger hydraulischer grubenstempel |
-
0
- GB GB1050524D patent/GB1050524A/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992001858A1 (de) * | 1990-07-24 | 1992-02-06 | Nlw Fördertechnik Gmbh | Mehrstufiger hydraulischer grubenstempel |
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