FR955604A - - Google Patents
Info
- Publication number
- FR955604A FR955604A FR955604DA FR955604A FR 955604 A FR955604 A FR 955604A FR 955604D A FR955604D A FR 955604DA FR 955604 A FR955604 A FR 955604A
- 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
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/082—Cap joints for obtaining a coal-face free of pit-props of sliding type
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
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)
- Structural Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR955604A true FR955604A (pl) | 1950-01-18 |
Family
ID=1558305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR955604D Expired FR955604A (pl) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR955604A (pl) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE958463C (de) * | 1951-03-07 | 1957-02-21 | Der Niederlaendische Staat Ver | Koecherfoermige Umhuellung fuer Kappen im Strebbau |
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0
- FR FR955604D patent/FR955604A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE958463C (de) * | 1951-03-07 | 1957-02-21 | Der Niederlaendische Staat Ver | Koecherfoermige Umhuellung fuer Kappen im Strebbau |