FR1076853A - Retaining post for mining especially to support the ceiling in iron mines - Google Patents
Retaining post for mining especially to support the ceiling in iron minesInfo
- Publication number
- FR1076853A FR1076853A FR1076853DA FR1076853A FR 1076853 A FR1076853 A FR 1076853A FR 1076853D A FR1076853D A FR 1076853DA FR 1076853 A FR1076853 A FR 1076853A
- Authority
- FR
- France
- Prior art keywords
- ceiling
- support
- retaining post
- iron mines
- mining
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title 2
- 229910052742 iron Inorganic materials 0.000 title 1
- 238000005065 mining Methods 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
- E21D15/32—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
- E21D15/325—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 by a clamping ring
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 |
---|---|---|---|
DE1076853X | 1952-05-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1076853A true FR1076853A (en) | 1954-11-02 |
Family
ID=7720436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1076853D Expired FR1076853A (en) | 1952-05-20 | 1953-05-12 | Retaining post for mining especially to support the ceiling in iron mines |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1076853A (en) |
-
1953
- 1953-05-12 FR FR1076853D patent/FR1076853A/en not_active Expired
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