FR2287580B1 - - Google Patents
Info
- Publication number
- FR2287580B1 FR2287580B1 FR7435354A FR7435354A FR2287580B1 FR 2287580 B1 FR2287580 B1 FR 2287580B1 FR 7435354 A FR7435354 A FR 7435354A FR 7435354 A FR7435354 A FR 7435354A FR 2287580 B1 FR2287580 B1 FR 2287580B1
- 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
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
-
- 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
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
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)
- Excavating Of Shafts Or Tunnels (AREA)
- Body Structure For Vehicles (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7435354A FR2287580A1 (fr) | 1974-10-11 | 1974-10-11 | Pile a fleche pour le soutenement, avec chapeau en porte a faux |
| DE19752545605 DE2545605A1 (de) | 1974-10-11 | 1975-10-11 | Schildeinheit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7435354A FR2287580A1 (fr) | 1974-10-11 | 1974-10-11 | Pile a fleche pour le soutenement, avec chapeau en porte a faux |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2287580A1 FR2287580A1 (fr) | 1976-05-07 |
| FR2287580B1 true FR2287580B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1984-07-06 |
Family
ID=9144329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7435354A Granted FR2287580A1 (fr) | 1974-10-11 | 1974-10-11 | Pile a fleche pour le soutenement, avec chapeau en porte a faux |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2545605A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
| FR (1) | FR2287580A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2753059C2 (de) * | 1976-12-07 | 1986-06-19 | Charbonnages De France, Paris | Fahrbare Grubenausbaueinheit |
-
1974
- 1974-10-11 FR FR7435354A patent/FR2287580A1/fr active Granted
-
1975
- 1975-10-11 DE DE19752545605 patent/DE2545605A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE2545605A1 (de) | 1976-04-22 |
| FR2287580A1 (fr) | 1976-05-07 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |