FR1386712A - Hydraulic walking support frame usable in particular in mines - Google Patents
Hydraulic walking support frame usable in particular in minesInfo
- Publication number
- FR1386712A FR1386712A FR963806A FR963806A FR1386712A FR 1386712 A FR1386712 A FR 1386712A FR 963806 A FR963806 A FR 963806A FR 963806 A FR963806 A FR 963806A FR 1386712 A FR1386712 A FR 1386712A
- Authority
- FR
- France
- Prior art keywords
- mines
- support frame
- walking support
- hydraulic walking
- frame usable
- 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
- E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
- E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices 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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR963806A FR1386712A (en) | 1964-02-14 | 1964-02-14 | Hydraulic walking support frame usable in particular in mines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR963806A FR1386712A (en) | 1964-02-14 | 1964-02-14 | Hydraulic walking support frame usable in particular in mines |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1386712A true FR1386712A (en) | 1965-01-22 |
Family
ID=8823182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR963806A Expired FR1386712A (en) | 1964-02-14 | 1964-02-14 | Hydraulic walking support frame usable in particular in mines |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1386712A (en) |
-
1964
- 1964-02-14 FR FR963806A patent/FR1386712A/en not_active Expired
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