BE624315A - - Google Patents
Info
- Publication number
- BE624315A BE624315A BE624315DA BE624315A BE 624315 A BE624315 A BE 624315A BE 624315D A BE624315D A BE 624315DA BE 624315 A BE624315 A BE 624315A
- Authority
- BE
- Belgium
- Prior art keywords
- roof
- bar
- support
- extendable
- extension
- Prior art date
Links
- 239000003245 coal Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 244000309466 calf Species 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- JGPMMRGNQUBGND-UHFFFAOYSA-N idebenone Chemical compound COC1=C(OC)C(=O)C(CCCCCCCCCCO)=C(C)C1=O JGPMMRGNQUBGND-UHFFFAOYSA-N 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000004243 sweat Anatomy 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
- E21D23/04—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
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
- E21D23/063—Retractable cantilever extensions therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/082—Cap joints for obtaining a coal-face free of pit-props of sliding type
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
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)
- Architecture (AREA)
- Structural Engineering (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE624315A true BE624315A (enrdf_load_stackoverflow) |
Family
ID=196048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE624315D BE624315A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE624315A (enrdf_load_stackoverflow) |
-
0
- BE BE624315D patent/BE624315A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2502799B1 (fr) | Installation de transport par câble aérien munie d'un véhicule de maintenance | |
| FR2667525A1 (fr) | Outil a casser les rails. | |
| FR2790252A1 (fr) | Dispositif de depliage ou repliage simultane d'elements de pointe de fleche de grue | |
| FR2511077A1 (fr) | Convoyeur a chaine articule, monte sur une rame de desserte de galerie de mine ou de tunnel | |
| BE624315A (enrdf_load_stackoverflow) | ||
| EP2308789B1 (fr) | Chasse pieds pour ascenseur et son procédé de déploiement | |
| EP0008963B1 (fr) | Cisaille guillotine | |
| FR2643625A2 (fr) | Grue repliable a fleche en trois elements articules les uns aux autres | |
| FR2741739A1 (fr) | Embase pour element de signalisation temporaire | |
| FR2903716A1 (fr) | Banche pourvue d'une plateforme de circulation a verrouillage automatique en position de service | |
| FR3150530A1 (fr) | Train de travaux. | |
| BE474382A (enrdf_load_stackoverflow) | ||
| BE634749A (enrdf_load_stackoverflow) | ||
| FR2551781A1 (fr) | Procede et appareil pour le remodelage en continu d'un ballast de chemin de fer | |
| FR2519691A1 (fr) | Procede et appareil pour percer des galeries dans la roche | |
| CH426919A (fr) | Procédé pour déplacer des ensembles de voies et appareil pour la mise en oeuvre de ce procédé | |
| FR2796327A1 (fr) | Machine de type combine mobile remorque, pour le chargement de troncs, leur sciage en troncons a longueur, le fendage de ces troncons en quartiers et le chargement du bois debite sur un camion | |
| FR2520799A1 (fr) | Soutenement de toit de mines | |
| BE536171A (enrdf_load_stackoverflow) | ||
| BE504264A (enrdf_load_stackoverflow) | ||
| FR2478194A1 (fr) | Dispositif de guidage pour chevalets de soutenement marchant | |
| BE572488A (enrdf_load_stackoverflow) | ||
| FR2544378A1 (fr) | Dehouilleuse frontale | |
| BE559964A (enrdf_load_stackoverflow) | ||
| BE570567A (enrdf_load_stackoverflow) |