BE501546A - - Google Patents
Info
- Publication number
- BE501546A BE501546A BE501546DA BE501546A BE 501546 A BE501546 A BE 501546A BE 501546D A BE501546D A BE 501546DA BE 501546 A BE501546 A BE 501546A
- 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)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV643A DE974877C (de) | 1950-03-04 | 1950-03-04 | Kappenverbindung fuer den Strebausbau im Grubenbetrieb unter Tage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE501546A true BE501546A (US08063081-20111122-C00044.png) |
Family
ID=7569206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE501546D BE501546A (US08063081-20111122-C00044.png) | 1950-03-04 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE501546A (US08063081-20111122-C00044.png) |
| DE (1) | DE974877C (US08063081-20111122-C00044.png) |
| NL (1) | NL86396C (US08063081-20111122-C00044.png) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1018824B (de) * | 1952-05-31 | 1957-11-07 | Usines Et Acieries Leonard Gio | Unterzug, insbesondere fuer Abbauraeume geringer Hoehe |
| DE1105821B (de) * | 1955-04-07 | 1961-05-04 | Josef Brand | Kappenverbindung |
-
0
- NL NL86396D patent/NL86396C/xx active
- BE BE501546D patent/BE501546A/xx unknown
-
1950
- 1950-03-04 DE DEV643A patent/DE974877C/de not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1018824B (de) * | 1952-05-31 | 1957-11-07 | Usines Et Acieries Leonard Gio | Unterzug, insbesondere fuer Abbauraeume geringer Hoehe |
| DE1105821B (de) * | 1955-04-07 | 1961-05-04 | Josef Brand | Kappenverbindung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE974877C (de) | 1961-05-25 |
| NL86396C (US08063081-20111122-C00044.png) |
