FR1016382A - étançon de mine - Google Patents
étançon de mineInfo
- Publication number
- FR1016382A FR1016382A FR1016382DA FR1016382A FR 1016382 A FR1016382 A FR 1016382A FR 1016382D A FR1016382D A FR 1016382DA FR 1016382 A FR1016382 A FR 1016382A
- Authority
- FR
- France
- Prior art keywords
- 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
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/32—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring
-
- 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
- E21D15/50—Component parts or details of props
- E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section
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 |
---|---|---|---|
FR1016382T | 1950-04-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1016382A true FR1016382A (fr) | 1952-11-10 |
Family
ID=9573704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1016382D Expired FR1016382A (fr) | 1950-04-17 | 1950-04-17 | étançon de mine |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1016382A (fr) |
-
1950
- 1950-04-17 FR FR1016382D patent/FR1016382A/fr not_active Expired
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