DE2519027C2 - Schreitende Ausbaueinheit, insbesondere Ausbaugespann - Google Patents
Schreitende Ausbaueinheit, insbesondere AusbaugespannInfo
- Publication number
- DE2519027C2 DE2519027C2 DE19752519027 DE2519027A DE2519027C2 DE 2519027 C2 DE2519027 C2 DE 2519027C2 DE 19752519027 DE19752519027 DE 19752519027 DE 2519027 A DE2519027 A DE 2519027A DE 2519027 C2 DE2519027 C2 DE 2519027C2
- Authority
- DE
- Germany
- Prior art keywords
- boxes
- expansion
- width
- box
- punch
- Prior art date
- 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
- 239000011435 rock Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 5
- 241001669679 Eleotris Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752519027 DE2519027C2 (de) | 1975-04-29 | 1975-04-29 | Schreitende Ausbaueinheit, insbesondere Ausbaugespann |
FR7526117A FR2309706A1 (fr) | 1975-04-29 | 1975-08-25 | Ensemble de soutenement marchant, en particulier pile de soutenement |
BE159587A BE832893A (fr) | 1975-04-29 | 1975-08-29 | Ensemble de soutenement marchant, en particulier pile de soutenement |
ES440828A ES440828A1 (es) | 1975-04-29 | 1975-09-09 | Una unidad progresiva de entibacion. |
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 |
---|---|
DE2519027A1 DE2519027A1 (de) | 1976-11-25 |
DE2519027C2 true DE2519027C2 (de) | 1984-03-15 |
Family
ID=5945300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19752519027 Expired DE2519027C2 (de) | 1975-04-29 | 1975-04-29 | Schreitende Ausbaueinheit, insbesondere Ausbaugespann |
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 |
FR2309706B1 (enrdf_load_stackoverflow) | 1978-04-07 |
BE832893A (fr) | 1975-12-16 |
DE2519027A1 (de) | 1976-11-25 |
ES440828A1 (es) | 1977-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |