BE539259A - - Google Patents
Info
- Publication number
- BE539259A BE539259A BE539259DA BE539259A BE 539259 A BE539259 A BE 539259A BE 539259D A BE539259D A BE 539259DA BE 539259 A BE539259 A BE 539259A
- Authority
- BE
- Belgium
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)
- Pivots And Pivotal Connections (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Clamps And Clips (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG14723A DE1053456B (de) | 1954-06-25 | 1954-06-25 | Zapfengelenkverbindung fuer Grubenausbaukappen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE539259A true BE539259A (xx) |
Family
ID=7120293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE539259D BE539259A (xx) | 1954-06-25 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE539259A (xx) |
| DE (1) | DE1053456B (xx) |
| FR (1) | FR1126664A (xx) |
| GB (1) | GB770741A (xx) |
| NL (1) | NL105545C (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3043108A (en) * | 1958-07-16 | 1962-07-10 | Vanwersch Aloys | Mine roof bar arrangement |
| DE1186014B (de) * | 1960-07-04 | 1965-01-28 | Heinrich Pierburg Fa | Vorpfaendgelenkkappe, insbesondere fuer den Strebausbau |
-
0
- BE BE539259D patent/BE539259A/xx unknown
- NL NL105545D patent/NL105545C/xx active
-
1954
- 1954-06-25 DE DEG14723A patent/DE1053456B/de active Pending
-
1955
- 1955-06-10 GB GB1672155A patent/GB770741A/en not_active Expired
- 1955-06-23 FR FR1126664D patent/FR1126664A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL105545C (xx) | |
| DE1053456B (de) | 1959-03-26 |
| FR1126664A (fr) | 1956-11-28 |
| GB770741A (en) | 1957-03-20 |