OA00407A - Centering device which can be used in particular for centering support elements. - Google Patents
Centering device which can be used in particular for centering support elements.Info
- Publication number
- OA00407A OA00407A OA50483A OA50483A OA00407A OA 00407 A OA00407 A OA 00407A OA 50483 A OA50483 A OA 50483A OA 50483 A OA50483 A OA 50483A OA 00407 A OA00407 A OA 00407A
- Authority
- OA
- OAPI
- Prior art keywords
- centering
- support elements
- centering device
- centering support
- elements
- Prior art date
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
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
- E21D15/545—Details of the ends of props hydraulic or pneumatic
-
- 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
- E21D15/48—Chocks or the like
- E21D15/486—Chocks or the like with essential hydraulic or pneumatic details
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0418—Positioning devices and stabilizing means for the props
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Prostheses (AREA)
- Tents Or Canopies (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR891572A FR1325740A (en) | 1962-03-20 | 1962-03-20 | Centering device usable in particular for centering support elements |
Publications (1)
Publication Number | Publication Date |
---|---|
OA00407A true OA00407A (en) | 1966-05-15 |
Family
ID=8774884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
OA50483A OA00407A (en) | 1962-03-20 | 1964-10-23 | Centering device which can be used in particular for centering support elements. |
Country Status (6)
Country | Link |
---|---|
US (1) | US3184206A (en) |
FR (1) | FR1325740A (en) |
GB (1) | GB980658A (en) |
LU (1) | LU43357A1 (en) |
NL (1) | NL290436A (en) |
OA (1) | OA00407A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1289506C2 (en) * | 1963-08-29 | 1974-03-28 | HYDRAULIC SUPPORT ELEMENT | |
US5779210A (en) * | 1996-02-09 | 1998-07-14 | Canson; Barney | Decorative clay pot hangers |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1070311A (en) * | 1953-02-04 | 1954-07-22 | Rech S Ind Et Minieres Soc Et | Friction lock for mine prop |
US2985419A (en) * | 1957-04-13 | 1961-05-23 | Mining Engineering Co Ltd | Roof supports for mine workings |
DE1034568B (en) * | 1957-04-16 | 1958-07-24 | Hoesch Werke Ag | Punch head bearing |
-
0
- NL NL290436D patent/NL290436A/xx unknown
-
1962
- 1962-03-20 FR FR891572A patent/FR1325740A/en not_active Expired
-
1963
- 1963-03-15 LU LU43357D patent/LU43357A1/xx unknown
- 1963-03-18 US US265706A patent/US3184206A/en not_active Expired - Lifetime
- 1963-03-19 GB GB10793/63A patent/GB980658A/en not_active Expired
-
1964
- 1964-10-23 OA OA50483A patent/OA00407A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR1325740A (en) | 1963-05-03 |
US3184206A (en) | 1965-05-18 |
LU43357A1 (en) | 1963-05-15 |
NL290436A (en) | |
GB980658A (en) | 1965-01-13 |
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