BE558976A - - Google Patents
Info
- Publication number
- BE558976A BE558976A BE558976DA BE558976A BE 558976 A BE558976 A BE 558976A BE 558976D A BE558976D A BE 558976DA BE 558976 A BE558976 A BE 558976A
- Authority
- BE
- Belgium
- Prior art keywords
- control
- fluid
- control valve
- adjustment means
- valve
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims description 36
- 230000007246 mechanism Effects 0.000 claims description 23
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000008602 contraction Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 6
- 230000001143 conditioned effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000000284 resting effect Effects 0.000 claims description 3
- 208000036829 Device dislocation Diseases 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000004904 shortening Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000013138 pruning Methods 0.000 description 1
- 238000003307 slaughter Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
- E21D23/0065—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices driven, or automatically, e.g. electrically-hydraulically controlled
-
- 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
- E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
- E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with advancing shifting devices connected therewith
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)
- Fluid-Pressure Circuits (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE558976A true BE558976A (de) |
Family
ID=181847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE558976D BE558976A (de) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE558976A (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1116179B (de) * | 1960-10-19 | 1961-11-02 | Gewerk Eisenhuette Westfalia | Rueckeinrichtung fuer Strebfoerderer |
| DE1207322B (de) * | 1961-09-21 | 1965-12-23 | Glueckauf Guenther Klerner Mas | Kugelgelenklagerung fuer den Unterstempel einer durch Druckmedien beaufschlagbaren, schraeg einstellbaren Teleskopstuetze bei Abspann-vorrichtungen fuer Strebfoerderer |
| DE1277786B (de) * | 1958-09-18 | 1968-09-19 | Bosch Gmbh Robert | Steuergeraet fuer hydraulische Grubenausbaue |
| US3530490A (en) * | 1967-11-08 | 1970-09-22 | Gullick Ltd | Self-advancing mine and roof support systems |
-
0
- BE BE558976D patent/BE558976A/fr unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1277786B (de) * | 1958-09-18 | 1968-09-19 | Bosch Gmbh Robert | Steuergeraet fuer hydraulische Grubenausbaue |
| DE1116179B (de) * | 1960-10-19 | 1961-11-02 | Gewerk Eisenhuette Westfalia | Rueckeinrichtung fuer Strebfoerderer |
| DE1207322B (de) * | 1961-09-21 | 1965-12-23 | Glueckauf Guenther Klerner Mas | Kugelgelenklagerung fuer den Unterstempel einer durch Druckmedien beaufschlagbaren, schraeg einstellbaren Teleskopstuetze bei Abspann-vorrichtungen fuer Strebfoerderer |
| US3530490A (en) * | 1967-11-08 | 1970-09-22 | Gullick Ltd | Self-advancing mine and roof support systems |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2042427B1 (de) | Einklappbares Trittbrett eines Fahrzeugs und mit einem solchen Trittbrett ausgestattetes Fahrzeug | |
| FR2722146A1 (fr) | Systeme de commande pour un toit pliant et escamotable | |
| CA2379193C (fr) | Systeme de verrouillage synchronise des portes d'un inverseur de poussee | |
| EP0649980A1 (de) | Schubumkehreinrichtung eines Turbinenstrahltriebwerk mit Hilfklappen | |
| EP2352669A1 (de) | Vorrichtung zum einziehen eines luftfahrzeug-fahrwerks | |
| FR2833657A1 (fr) | Verin d'ouverture de secours d'une porte de cabine d'avion | |
| BE558976A (de) | ||
| FR2503660A1 (fr) | Groupe hydraulique pour dispositif de propulsion marine comportant des moyens de basculement et d'equilibrage a action sequentielle | |
| FR2683867A1 (fr) | Circuit hydraulique pour le fonctionnement synchrone de deux verins double effet, notamment pour chargeuse pelleteuse. | |
| FR2591438A1 (fr) | Dispositif perfectionne pour le reglage de la distance entre les rouleaux et les matrices annulaires d'extrusion sous pression d'une extrudeuse de granules d'aliments | |
| EP1332061B1 (de) | Faltdach für fahrzeuge mit zwei schwenkarmen | |
| EP1523423B1 (de) | Zur erleichterung des einführens von objekten unter einem faltdach im kofferraum eines kraftfahrzeugs verwendete vorrichtung | |
| FR2699868A1 (fr) | Véhicule décapotable. | |
| EP1332058B1 (de) | Einziehbares fahrzeugdach mit schwenkelementen, die mittels zweier arme verschiebbar sind | |
| FR3082502A1 (fr) | Procede de manœuvre de portes de soute d'atterrisseur d'aeronef | |
| EP2511178B1 (de) | Entsicherbare Verriegelungsvorrichtung eines Fluggeräts, das zum Abschuss von einer Plattform aus bestimmt ist | |
| EP1117111A1 (de) | Mit einem Gelenkparallelogramm versehene Antriebseinrichtung für ein Kontaktorgan eines elektrischen Schalters | |
| FR2538446A1 (fr) | Dispositif de commande des verins de toits coulissants d'unites de soutenement marchants hydrauliques, et verin de travail commande par le dispositif | |
| FR2616117A1 (fr) | Modulateur de pression de freinage pour systeme a regulation du glissement | |
| EP0989245B1 (de) | Steuervorrichtung für eine Erdbewegungsmaschine | |
| EP3657522A1 (de) | Mechanismus für die schliess- und öffnungssteuerung einer stromunterbrechungsvorrichtung für elektrisches schaltgerät | |
| EP1798088B1 (de) | Verfahren zum Öffnen eines Cabriolet-Daches | |
| FR2863634A1 (fr) | Engin de travaux publics | |
| FR2659839A1 (fr) | Siege escamotable dans un coffre. | |
| FR2461608A1 (fr) | Dispositif de commande d'ouverture et de fermeture d'un toit ouvrant |