FR1083882A - Extension for mine prop - Google Patents
Extension for mine propInfo
- Publication number
- FR1083882A FR1083882A FR1083882DA FR1083882A FR 1083882 A FR1083882 A FR 1083882A FR 1083882D A FR1083882D A FR 1083882DA FR 1083882 A FR1083882 A FR 1083882A
- Authority
- FR
- France
- Prior art keywords
- extension
- mine prop
- prop
- 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
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/58—Devices for setting props or chocks
- E21D15/581—Devices for setting props or chocks in which the props are pre- loaded
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 |
---|---|---|---|
FR1083882T | 1953-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1083882A true FR1083882A (en) | 1955-01-13 |
Family
ID=9611351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1083882D Expired FR1083882A (en) | 1953-09-22 | 1953-09-22 | Extension for mine prop |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1083882A (en) |
-
1953
- 1953-09-22 FR FR1083882D patent/FR1083882A/en not_active Expired
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