FR2213410A1 - - Google Patents
Info
- Publication number
- FR2213410A1 FR2213410A1 FR7239631A FR7239631A FR2213410A1 FR 2213410 A1 FR2213410 A1 FR 2213410A1 FR 7239631 A FR7239631 A FR 7239631A FR 7239631 A FR7239631 A FR 7239631A FR 2213410 A1 FR2213410 A1 FR 2213410A1
- 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 |
|---|---|---|---|
| FR7239631A FR2213410B1 (es) | 1972-11-03 | 1972-11-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7239631A FR2213410B1 (es) | 1972-11-03 | 1972-11-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2213410A1 true FR2213410A1 (es) | 1974-08-02 |
| FR2213410B1 FR2213410B1 (es) | 1975-03-14 |
Family
ID=9106860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7239631A Expired FR2213410B1 (es) | 1972-11-03 | 1972-11-03 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2213410B1 (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2497872A1 (fr) * | 1981-01-13 | 1982-07-16 | Alsace Mines Potasse | Dispositif de positionnement hydraulique des etancons d'un ensemble hydraulique de soutenement |
-
1972
- 1972-11-03 FR FR7239631A patent/FR2213410B1/fr not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| NEANT * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2497872A1 (fr) * | 1981-01-13 | 1982-07-16 | Alsace Mines Potasse | Dispositif de positionnement hydraulique des etancons d'un ensemble hydraulique de soutenement |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2213410B1 (es) | 1975-03-14 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |