NL290436A - - Google Patents
Info
- Publication number
- NL290436A NL290436A NL290436DA NL290436A NL 290436 A NL290436 A NL 290436A NL 290436D A NL290436D A NL 290436DA NL 290436 A NL290436 A NL 290436A
- Authority
- NL
- Netherlands
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 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 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR891572A FR1325740A (fr) | 1962-03-20 | 1962-03-20 | Dispositif de centrage utilisable notamment pour le centrage d'éléments de soutènement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL290436A true NL290436A (xx) |
Family
ID=8774884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL290436D NL290436A (xx) | 1962-03-20 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3184206A (xx) |
| FR (1) | FR1325740A (xx) |
| GB (1) | GB980658A (xx) |
| LU (1) | LU43357A1 (xx) |
| NL (1) | NL290436A (xx) |
| OA (1) | OA00407A (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1289506C2 (de) * | 1963-08-29 | 1974-03-28 | Hydraulisches abstuetzelement | |
| 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 (fr) * | 1953-02-04 | 1954-07-22 | Rech S Ind Et Minieres Soc Et | Serrure à frottement pour étançon de mine |
| US2985419A (en) * | 1957-04-13 | 1961-05-23 | Mining Engineering Co Ltd | Roof supports for mine workings |
| DE1034568B (de) * | 1957-04-16 | 1958-07-24 | Hoesch Werke Ag | Stempelkopflager |
-
0
- NL NL290436D patent/NL290436A/xx unknown
-
1962
- 1962-03-20 FR FR891572A patent/FR1325740A/fr 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/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| OA00407A (fr) | 1966-05-15 |
| FR1325740A (fr) | 1963-05-03 |
| GB980658A (en) | 1965-01-13 |
| US3184206A (en) | 1965-05-18 |
| LU43357A1 (xx) | 1963-05-15 |