BE508081A - - Google Patents
Info
- Publication number
- BE508081A BE508081A BE508081DA BE508081A BE 508081 A BE508081 A BE 508081A BE 508081D A BE508081D A BE 508081DA BE 508081 A BE508081 A BE 508081A
- 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)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE508081T | 1951-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE508081A true BE508081A (ja) | 1952-01-15 |
Family
ID=3878815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE508081D BE508081A (ja) | 1951-12-28 | 1951-12-28 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE508081A (ja) |
| DE (1) | DE1025366B (ja) |
| FR (1) | FR1074602A (ja) |
| GB (1) | GB718352A (ja) |
| NL (2) | NL89415C (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1196613B (de) * | 1962-07-31 | 1965-07-15 | Aloys Vanwersch | Kappenverbindung fuer den Strebausbau in Untertagebetrieben |
| DE2849890C2 (de) * | 1978-11-17 | 1990-04-19 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Kappenverbindung, insbesondere für Vorpfändkappen |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE503626A (ja) * | ||||
| DE804317C (de) * | 1949-03-22 | 1951-04-19 | Otto Leppak | Verfahren zur Schaffung einer stempelfreien Abbaufront beim eisernen Strebausbau |
-
0
- NL NLAANVRAGE7014822,A patent/NL173308B/xx unknown
-
1951
- 1951-12-28 BE BE508081D patent/BE508081A/xx unknown
-
1952
- 1952-10-17 FR FR1074602D patent/FR1074602A/fr not_active Expired
- 1952-10-22 NL NL173308A patent/NL89415C/xx active
- 1952-11-27 GB GB30114/52A patent/GB718352A/en not_active Expired
- 1952-12-27 DE DEP8940A patent/DE1025366B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL89415C (ja) | 1958-06-16 |
| FR1074602A (fr) | 1954-10-07 |
| GB718352A (en) | 1954-11-10 |
| NL173308B (nl) | |
| DE1025366B (de) | 1958-03-06 |