BE488550A - - Google Patents
Info
- Publication number
- BE488550A BE488550A BE488550DA BE488550A BE 488550 A BE488550 A BE 488550A BE 488550D A BE488550D A BE 488550DA BE 488550 A BE488550 A BE 488550A
- 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)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP36222A DE975687C (en) | 1949-03-10 | 1949-03-10 | Extension cap for the pit extension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE488550A true BE488550A (en) |
Family
ID=7374629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE488550D BE488550A (en) | 1949-03-10 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE488550A (en) |
| DE (1) | DE975687C (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE481680A (en) * | ||||
| DE725270C (en) * | 1940-10-22 | 1942-09-18 | Aloys Vanwersch | Bracket connection for the shell iron in the pit |
| DE741949C (en) * | 1942-04-15 | 1943-11-19 | Alois Vanwersch | Shell iron connection designed as a joint for the pit lining |
| BE483297A (en) * | 1944-02-05 | |||
| DE942321C (en) * | 1948-10-02 | 1956-05-03 | Karl Ruhl | Cap made of juxtaposed gowns for excavation work, especially longwall mining, and methods of removal with the cap |
| DE968751C (en) * | 1948-10-02 | 1958-03-27 | Wilhelm Reppel | Cap for pit lining, in particular for longwall mining, consisting of rigid links attached to one another |
| DE817287C (en) * | 1948-10-02 | 1951-10-15 | Karl Brieden & Co K G Maschf | Cup iron connection |
| DE973125C (en) * | 1949-02-26 | 1959-12-03 | Wilhelm Reppel | Cap made of joined links for the excavation |
-
0
- BE BE488550D patent/BE488550A/xx unknown
-
1949
- 1949-03-10 DE DEP36222A patent/DE975687C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE975687C (en) | 1962-05-10 |