FR956400A - - Google Patents
Info
- Publication number
- FR956400A FR956400A FR956400DA FR956400A FR 956400 A FR956400 A FR 956400A FR 956400D A FR956400D A FR 956400DA FR 956400 A FR956400 A FR 956400A
- 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
- E21D17/086—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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR956400A true FR956400A (en) | 1950-01-31 |
Family
ID=1558960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR956400D Expired FR956400A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR956400A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE965032C (en) * | 1951-09-05 | 1957-05-29 | Josef Brand | Bendable connection for shell iron used in longwall mining |
| DE1019268B (en) * | 1952-11-21 | 1957-11-14 | Heinrich Scharf G M B H | Expansion of mining operations with articulated caps |
-
0
- FR FR956400D patent/FR956400A/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE965032C (en) * | 1951-09-05 | 1957-05-29 | Josef Brand | Bendable connection for shell iron used in longwall mining |
| DE1019268B (en) * | 1952-11-21 | 1957-11-14 | Heinrich Scharf G M B H | Expansion of mining operations with articulated caps |