FR1169098A - mine prop - Google Patents
mine propInfo
- Publication number
- FR1169098A FR1169098A FR1169098DA FR1169098A FR 1169098 A FR1169098 A FR 1169098A FR 1169098D A FR1169098D A FR 1169098DA FR 1169098 A FR1169098 A FR 1169098A
- 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
- E21D15/42—Telescopic props with parts held relatively to each other by friction or gripping with special parts to influence the friction
-
- 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 |
|---|---|---|---|
| FR1169098T | 1957-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1169098A true FR1169098A (en) | 1958-12-22 |
Family
ID=9656327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1169098D Expired FR1169098A (en) | 1957-01-30 | 1957-01-30 | mine prop |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1169098A (en) |
-
1957
- 1957-01-30 FR FR1169098D patent/FR1169098A/en not_active Expired
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