FR1024377A - Rallonge de soutènement - Google Patents
Rallonge de soutènementInfo
- Publication number
- FR1024377A FR1024377A FR1024377DA FR1024377A FR 1024377 A FR1024377 A FR 1024377A FR 1024377D A FR1024377D A FR 1024377DA FR 1024377 A FR1024377 A FR 1024377A
- Authority
- FR
- France
- Prior art keywords
- support extension
- extension
- support
- 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
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
- E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1024377T | 1950-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1024377A true FR1024377A (fr) | 1953-04-01 |
Family
ID=9578795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1024377D Expired FR1024377A (fr) | 1950-09-07 | 1950-09-07 | Rallonge de soutènement |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1024377A (fr) |
-
1950
- 1950-09-07 FR FR1024377D patent/FR1024377A/fr not_active Expired
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