FR1017982A - Annular or curved beam for mine galleries - Google Patents
Annular or curved beam for mine galleriesInfo
- Publication number
- FR1017982A FR1017982A FR1017982DA FR1017982A FR 1017982 A FR1017982 A FR 1017982A FR 1017982D A FR1017982D A FR 1017982DA FR 1017982 A FR1017982 A FR 1017982A
- Authority
- FR
- France
- Prior art keywords
- annular
- curved beam
- mine galleries
- galleries
- mine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/20—Special cross- sections, e.g. corrugated
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1017982T | 1948-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1017982A true FR1017982A (en) | 1952-12-24 |
Family
ID=9574796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1017982D Expired FR1017982A (en) | 1948-08-24 | 1948-08-24 | Annular or curved beam for mine galleries |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1017982A (en) |
-
1948
- 1948-08-24 FR FR1017982D patent/FR1017982A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR994590A (en) | Sky support for mines | |
| FR1009966A (en) | Progressive support system for mines | |
| CH286541A (en) | Anti-tank mine. | |
| FR924058A (en) | Stop cleat for mining sedans | |
| FR1017982A (en) | Annular or curved beam for mine galleries | |
| FR1017471A (en) | Annular or curved mine formwork | |
| FR968689A (en) | Retaining ring | |
| FR1017470A (en) | Annular or curved formwork for mines | |
| FR1017472A (en) | Annular or curved formwork for mines | |
| FR63275E (en) | Annular or curved beam for mine galleries | |
| FR968622A (en) | Pillar for caving | |
| FR1001408A (en) | Deformable support for mine galleries | |
| FR1009955A (en) | Mine gallery support | |
| FR985629A (en) | Support system for mine galleries | |
| FR1106251A (en) | Polygonal or arcuate support for mining operations | |
| FR1009892A (en) | Polygonal support system for mine galleries | |
| FR62499E (en) | Annular or curved beam for mine galleries | |
| FR984716A (en) | metal prop for mines | |
| FR1008513A (en) | mine prop | |
| FR1009846A (en) | Pit prop | |
| FR975922A (en) | Mineral reduction | |
| FR922608A (en) | Mineral reduction | |
| FR978846A (en) | Mining transporter | |
| FR66503E (en) | Polygonal or arcuate support for mining operations | |
| FR58436E (en) | Polygonal or arcuate support for mining operations |