FR1080833A - two-piece mine prop - Google Patents
two-piece mine propInfo
- Publication number
- FR1080833A FR1080833A FR1080833DA FR1080833A FR 1080833 A FR1080833 A FR 1080833A FR 1080833D A FR1080833D A FR 1080833DA FR 1080833 A FR1080833 A FR 1080833A
- Authority
- FR
- France
- Prior art keywords
- mine prop
- piece
- piece mine
- 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
- E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations
-
- 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
- E21D15/38—Telescopic props with parts held relatively to each other by friction or gripping with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations
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 |
---|---|---|---|
DE1080833X | 1952-06-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1080833A true FR1080833A (en) | 1954-12-14 |
Family
ID=7720851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1080833D Expired FR1080833A (en) | 1952-06-05 | 1953-05-29 | two-piece mine prop |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1080833A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0352395A1 (en) * | 1987-06-25 | 1990-01-31 | Claude Piton | Marine anchor having tripping means |
-
1953
- 1953-05-29 FR FR1080833D patent/FR1080833A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0352395A1 (en) * | 1987-06-25 | 1990-01-31 | Claude Piton | Marine anchor having tripping means |
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