FR1159531A - Mine support for the exploitation, by felling by large aligned front, the dressants - Google Patents
Mine support for the exploitation, by felling by large aligned front, the dressantsInfo
- Publication number
- FR1159531A FR1159531A FR1159531DA FR1159531A FR 1159531 A FR1159531 A FR 1159531A FR 1159531D A FR1159531D A FR 1159531DA FR 1159531 A FR1159531 A FR 1159531A
- Authority
- FR
- France
- Prior art keywords
- dressants
- felling
- exploitation
- mine support
- aligned front
- 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.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1159531X | 1955-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1159531A true FR1159531A (en) | 1958-06-27 |
Family
ID=7728258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1159531D Expired FR1159531A (en) | 1955-11-05 | 1956-11-05 | Mine support for the exploitation, by felling by large aligned front, the dressants |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1159531A (en) |
-
1956
- 1956-11-05 FR FR1159531D patent/FR1159531A/en not_active Expired
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