FR2182762A1 - - Google Patents
Info
- Publication number
- FR2182762A1 FR2182762A1 FR7216911A FR7216911A FR2182762A1 FR 2182762 A1 FR2182762 A1 FR 2182762A1 FR 7216911 A FR7216911 A FR 7216911A FR 7216911 A FR7216911 A FR 7216911A FR 2182762 A1 FR2182762 A1 FR 2182762A1
- Authority
- FR
- France
- 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.)
- Granted
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
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0418—Positioning devices and stabilizing means for the props
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (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 |
|---|---|---|---|
| FR7216911A FR2182762B3 (OSRAM) | 1972-05-02 | 1972-05-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7216911A FR2182762B3 (OSRAM) | 1972-05-02 | 1972-05-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2182762A1 true FR2182762A1 (OSRAM) | 1973-12-14 |
| FR2182762B3 FR2182762B3 (OSRAM) | 1974-10-31 |
Family
ID=9098369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7216911A Expired FR2182762B3 (OSRAM) | 1972-05-02 | 1972-05-02 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2182762B3 (OSRAM) |
-
1972
- 1972-05-02 FR FR7216911A patent/FR2182762B3/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2182762B3 (OSRAM) | 1974-10-31 |