FR2370852B3 - - Google Patents
Info
- Publication number
- FR2370852B3 FR2370852B3 FR7634542A FR7634542A FR2370852B3 FR 2370852 B3 FR2370852 B3 FR 2370852B3 FR 7634542 A FR7634542 A FR 7634542A FR 7634542 A FR7634542 A FR 7634542A FR 2370852 B3 FR2370852 B3 FR 2370852B3
- 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.)
- 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
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
- E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
-
- 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
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
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)
- Architecture (AREA)
- Structural Engineering (AREA)
- Attitude Control For Articles On Conveyors (AREA)
- Control Of Conveyors (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7634542A FR2370852A1 (fr) | 1976-11-10 | 1976-11-10 | Butees de recentrage d'une pile de soutenement marchant de mines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7634542A FR2370852A1 (fr) | 1976-11-10 | 1976-11-10 | Butees de recentrage d'une pile de soutenement marchant de mines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2370852A1 FR2370852A1 (fr) | 1978-06-09 |
| FR2370852B3 true FR2370852B3 (index.php) | 1979-07-27 |
Family
ID=9179992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7634542A Granted FR2370852A1 (fr) | 1976-11-10 | 1976-11-10 | Butees de recentrage d'une pile de soutenement marchant de mines |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2370852A1 (index.php) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404789C (zh) * | 2004-12-06 | 2008-07-23 | 煤炭科学研究总院太原分院 | 采煤巷道超前支护悬挂移动式液压支架 |
-
1976
- 1976-11-10 FR FR7634542A patent/FR2370852A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2370852A1 (fr) | 1978-06-09 |