FR2309706B1 - - Google Patents
Info
- Publication number
- FR2309706B1 FR2309706B1 FR7526117A FR7526117A FR2309706B1 FR 2309706 B1 FR2309706 B1 FR 2309706B1 FR 7526117 A FR7526117 A FR 7526117A FR 7526117 A FR7526117 A FR 7526117A FR 2309706 B1 FR2309706 B1 FR 2309706B1
- 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
- E21D23/0013—Frame type supports
-
- 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
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
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)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Tents Or Canopies (AREA)
- Body Structure For Vehicles (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Catching Or Destruction (AREA)
- Supports For Plants (AREA)
- Threshing Machine Elements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752519027 DE2519027C2 (de) | 1975-04-29 | 1975-04-29 | Schreitende Ausbaueinheit, insbesondere Ausbaugespann |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2309706A1 FR2309706A1 (fr) | 1976-11-26 |
FR2309706B1 true FR2309706B1 (enrdf_load_stackoverflow) | 1978-04-07 |
Family
ID=5945300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7526117A Granted FR2309706A1 (fr) | 1975-04-29 | 1975-08-25 | Ensemble de soutenement marchant, en particulier pile de soutenement |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE832893A (enrdf_load_stackoverflow) |
DE (1) | DE2519027C2 (enrdf_load_stackoverflow) |
ES (1) | ES440828A1 (enrdf_load_stackoverflow) |
FR (1) | FR2309706A1 (enrdf_load_stackoverflow) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1937308C3 (de) * | 1969-07-23 | 1983-12-15 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Schildausbauelement |
-
1975
- 1975-04-29 DE DE19752519027 patent/DE2519027C2/de not_active Expired
- 1975-08-25 FR FR7526117A patent/FR2309706A1/fr active Granted
- 1975-08-29 BE BE159587A patent/BE832893A/xx not_active IP Right Cessation
- 1975-09-09 ES ES440828A patent/ES440828A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2309706A1 (fr) | 1976-11-26 |
DE2519027C2 (de) | 1984-03-15 |
BE832893A (fr) | 1975-12-16 |
DE2519027A1 (de) | 1976-11-25 |
ES440828A1 (es) | 1977-03-01 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |