DE1302864C2 - Schreitendes ausbaugespann - Google Patents
Schreitendes ausbaugespannInfo
- Publication number
- DE1302864C2 DE1302864C2 DENDAT1302864D DE1302864DA DE1302864C2 DE 1302864 C2 DE1302864 C2 DE 1302864C2 DE NDAT1302864 D DENDAT1302864 D DE NDAT1302864D DE 1302864D A DE1302864D A DE 1302864DA DE 1302864 C2 DE1302864 C2 DE 1302864C2
- Authority
- DE
- Germany
- Prior art keywords
- spring elements
- frame
- expansion
- height
- spring
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 4
- IJJWOSAXNHWBPR-HUBLWGQQSA-N 5-[(3as,4s,6ar)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]-n-(6-hydrazinyl-6-oxohexyl)pentanamide Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)NCCCCCC(=O)NN)SC[C@@H]21 IJJWOSAXNHWBPR-HUBLWGQQSA-N 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000006978 adaptation Effects 0.000 description 2
- 241001323275 Andex Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000036316 preload 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
- E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
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)
- Rehabilitation Tools (AREA)
- Springs (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH0055434 | 1965-03-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE1302864B DE1302864B (enrdf_load_stackoverflow) | 1970-11-19 |
| DE1302864C2 true DE1302864C2 (de) | 1973-02-08 |
Family
ID=621655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1302864D Expired DE1302864C2 (de) | 1965-03-11 | Schreitendes ausbaugespann |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1302864C2 (enrdf_load_stackoverflow) |
-
0
- DE DENDAT1302864D patent/DE1302864C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1302864B (enrdf_load_stackoverflow) | 1970-11-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 | ||
| EHZ | Patent of addition ceased/non-payment of annual fee of parent patent |