BE499524A - - Google Patents
Info
- Publication number
- BE499524A BE499524A BE499524DA BE499524A BE 499524 A BE499524 A BE 499524A BE 499524D A BE499524D A BE 499524DA BE 499524 A BE499524 A BE 499524A
- 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)
- Bridges Or Land Bridges (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Working Measures On Existing Buildindgs (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE719215X | 1949-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE499524A true BE499524A (it) |
Family
ID=6627150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE499524D BE499524A (it) | 1949-11-25 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE499524A (it) |
| FR (1) | FR1028354A (it) |
| GB (1) | GB719215A (it) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1064008B (de) * | 1953-02-27 | 1959-08-27 | Gutehoffnungshuette Sterkrade | Gelenkverbindung zweier Grubenausbaukappen |
-
0
- BE BE499524D patent/BE499524A/xx unknown
-
1950
- 1950-11-24 FR FR1028354D patent/FR1028354A/fr not_active Expired
- 1950-11-24 GB GB28827/50A patent/GB719215A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1064008B (de) * | 1953-02-27 | 1959-08-27 | Gutehoffnungshuette Sterkrade | Gelenkverbindung zweier Grubenausbaukappen |
Also Published As
| Publication number | Publication date |
|---|---|
| GB719215A (en) | 1954-12-01 |
| FR1028354A (fr) | 1953-05-21 |