FR2450942B1 - - Google Patents
Info
- Publication number
- FR2450942B1 FR2450942B1 FR8002446A FR8002446A FR2450942B1 FR 2450942 B1 FR2450942 B1 FR 2450942B1 FR 8002446 A FR8002446 A FR 8002446A FR 8002446 A FR8002446 A FR 8002446A FR 2450942 B1 FR2450942 B1 FR 2450942B1
- Authority
- FR
- France
- 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
- 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/04—Distributing means for power supply in mines
- E21F17/08—Distributing hydraulic power; Pipe networks for hydraulic liquid
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Bridges Or Land Bridges (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Chain Conveyers (AREA)
- Manipulator (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2909165A DE2909165C2 (de) | 1979-03-08 | 1979-03-08 | Vorrichtung zum Anschluß eines hydraulischen Schreitausbaus an das Versorgungssystem eines untertägigen Gewinnungsbetriebes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2450942A1 FR2450942A1 (fr) | 1980-10-03 |
| FR2450942B1 true FR2450942B1 (fr) | 1983-11-10 |
Family
ID=6064863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8002446A Granted FR2450942A1 (fr) | 1979-03-08 | 1980-02-05 | Dispositif pour le raccordement d'un soutenement marchant hydraulique au systeme d'alimentation d'une exploitation miniere au fond |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4325659A (fr) |
| BE (1) | BE882080A (fr) |
| DE (1) | DE2909165C2 (fr) |
| FR (1) | FR2450942A1 (fr) |
| PL (1) | PL123125B1 (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2909165C2 (de) * | 1979-03-08 | 1986-11-27 | Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen | Vorrichtung zum Anschluß eines hydraulischen Schreitausbaus an das Versorgungssystem eines untertägigen Gewinnungsbetriebes |
| DE3100093A1 (de) * | 1981-01-03 | 1982-08-05 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Vorrichtung zur begrenzung des ausbauwiderstandes eines hydraulischen ausbauschildes |
| DE3024465A1 (de) * | 1980-06-28 | 1982-01-28 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Schreitender ausbau fuer untertaegige gewinnungsbetriebe, insbesondere schildausbau |
| DE202005016207U1 (de) * | 2005-10-13 | 2005-12-22 | Dbt Gmbh | Versorgungsleitung |
| DE102005057693A1 (de) * | 2005-12-01 | 2007-06-06 | Dbt Gmbh | Einrichtung zur Druckwasserbeaufschlagung von Bedüsungssystemen |
| CN104453967B (zh) * | 2014-11-24 | 2016-08-24 | 三一重型装备有限公司 | 液压支架及其顶梁 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1123639B (de) * | 1953-06-02 | 1962-02-15 | Bolton & Company Engineers Ltd | Wandernder Strebausbau |
| DE1091063B (de) * | 1955-04-04 | 1960-10-20 | Dowty Mining Equipment Ltd | Hydraulische Steuereinrichtung fuer eine in Richtung auf den Kohlenstoss verschiebbare Abstuetzeinrichtung des Hangenden |
| US2859022A (en) * | 1955-04-04 | 1958-11-04 | Dowty Mining Equipment Ltd | Hydraulic roof supports and conveyor feed jacks |
| US2910281A (en) * | 1956-10-19 | 1959-10-27 | Rheinstahl Wanheim Gmbh | Prop and conveyer arrangement for mines |
| US3120105A (en) * | 1959-09-25 | 1964-02-04 | Coal Industry Patents Ltd | Self-advancing mine roof supports |
| DE1146829B (de) * | 1960-04-27 | 1963-04-11 | Gewerk Eisenhuette Westfalia | Wanderndes hydraulisches Ausbaugestell |
| DE1168851B (de) * | 1962-10-31 | 1964-04-30 | Becorit Grubenausbau Gmbh | Vorrichtung zum Vorruecken von Strebfoerderern |
| GB1039314A (en) * | 1963-03-22 | 1966-08-17 | Gerlach Karl | A walking roof support system for longwall workings in coal mines |
| DE1232912B (de) * | 1965-08-05 | 1967-01-26 | Gewerk Eisenhuette Westfalia | Hydraulische Rueckeinrichtung fuer Strebfoerdermittel |
| DE2640185C3 (de) * | 1976-09-07 | 1986-07-10 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Mehrfachsteuergerät für hydraulischen Schreitausbau |
| DE2909165C2 (de) * | 1979-03-08 | 1986-11-27 | Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen | Vorrichtung zum Anschluß eines hydraulischen Schreitausbaus an das Versorgungssystem eines untertägigen Gewinnungsbetriebes |
-
1979
- 1979-03-08 DE DE2909165A patent/DE2909165C2/de not_active Expired
-
1980
- 1980-02-05 FR FR8002446A patent/FR2450942A1/fr active Granted
- 1980-03-05 BE BE0/199672A patent/BE882080A/fr not_active IP Right Cessation
- 1980-03-06 US US06/127,768 patent/US4325659A/en not_active Expired - Lifetime
- 1980-03-07 PL PL1980222532A patent/PL123125B1/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2909165A1 (de) | 1980-09-11 |
| US4325659A (en) | 1982-04-20 |
| BE882080A (fr) | 1980-07-01 |
| PL222532A1 (fr) | 1980-12-01 |
| FR2450942A1 (fr) | 1980-10-03 |
| PL123125B1 (en) | 1982-09-30 |
| DE2909165C2 (de) | 1986-11-27 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |