FR1340145A - Mine roof support - Google Patents
Mine roof supportInfo
- Publication number
- FR1340145A FR1340145A FR917620A FR917620A FR1340145A FR 1340145 A FR1340145 A FR 1340145A FR 917620 A FR917620 A FR 917620A FR 917620 A FR917620 A FR 917620A FR 1340145 A FR1340145 A FR 1340145A
- Authority
- FR
- France
- Prior art keywords
- roof support
- mine roof
- mine
- support
- roof
- 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
-
- 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
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 |
---|---|---|---|
FR917620A FR1340145A (en) | 1962-12-05 | 1962-12-05 | Mine roof support |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR917620A FR1340145A (en) | 1962-12-05 | 1962-12-05 | Mine roof support |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1340145A true FR1340145A (en) | 1963-10-11 |
Family
ID=8792171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR917620A Expired FR1340145A (en) | 1962-12-05 | 1962-12-05 | Mine roof support |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1340145A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3332246A (en) * | 1963-12-02 | 1967-07-25 | Stamicarbon | Movable face support |
US3333424A (en) * | 1963-09-02 | 1967-08-01 | Gewerk Eisenhuette Westfalia | Travelling propping machine |
-
1962
- 1962-12-05 FR FR917620A patent/FR1340145A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3333424A (en) * | 1963-09-02 | 1967-08-01 | Gewerk Eisenhuette Westfalia | Travelling propping machine |
US3332246A (en) * | 1963-12-02 | 1967-07-25 | Stamicarbon | Movable face support |
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