FR902093A - étançon métallique de mine - Google Patents
étançon métallique de mineInfo
- Publication number
- FR902093A FR902093A FR902093DA FR902093A FR 902093 A FR902093 A FR 902093A FR 902093D A FR902093D A FR 902093DA FR 902093 A FR902093 A FR 902093A
- Authority
- FR
- France
- Prior art keywords
- metal mine
- mine prop
- prop
- metal
- 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
- 239000002184 metal Substances 0.000 title 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/40—Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical 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 |
|---|---|---|---|
| FR902093T | 1943-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR902093A true FR902093A (fr) | 1945-08-17 |
Family
ID=9404088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR902093D Expired FR902093A (fr) | 1943-09-27 | 1943-09-27 | étançon métallique de mine |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR902093A (fr) |
-
1943
- 1943-09-27 FR FR902093D patent/FR902093A/fr not_active Expired
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