FR2306331B1 - - Google Patents
Info
- Publication number
- FR2306331B1 FR2306331B1 FR7522971A FR7522971A FR2306331B1 FR 2306331 B1 FR2306331 B1 FR 2306331B1 FR 7522971 A FR7522971 A FR 7522971A FR 7522971 A FR7522971 A FR 7522971A FR 2306331 B1 FR2306331 B1 FR 2306331B1
- 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
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/10—Anchorings for conveyors
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- 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
- E21D23/086—Details of fixing devices therefor
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)
- Mechanical Engineering (AREA)
- Belt Conveyors (AREA)
- Supports For Pipes And Cables (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE7510137 | 1975-03-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2306331A1 FR2306331A1 (fr) | 1976-10-29 |
FR2306331B1 true FR2306331B1 (xx) | 1982-07-30 |
Family
ID=6651228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7522971A Granted FR2306331A1 (fr) | 1975-03-29 | 1975-07-23 | Dispositif d'amarrage pour l'amarrage partiel d'un convoyeur a raclettes a chaines dans les exploitations minieres au fond |
Country Status (2)
Country | Link |
---|---|
ES (1) | ES439611A1 (xx) |
FR (1) | FR2306331A1 (xx) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3024216C2 (de) * | 1980-06-27 | 1985-08-01 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Blockabspannung für eine rückbare Förder- und/oder Gewinnungsanlage |
-
1975
- 1975-07-21 ES ES439611A patent/ES439611A1/es not_active Expired
- 1975-07-23 FR FR7522971A patent/FR2306331A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2306331A1 (fr) | 1976-10-29 |
ES439611A1 (es) | 1977-03-01 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |