BE492525A - - Google Patents
Info
- Publication number
- BE492525A BE492525A BE492525DA BE492525A BE 492525 A BE492525 A BE 492525A BE 492525D A BE492525D A BE 492525DA BE 492525 A BE492525 A BE 492525A
- Authority
- BE
- Belgium
- Prior art keywords
- prop
- clamping sleeve
- mining
- suitable clamping
- segments
- Prior art date
Links
- 238000005065 mining Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
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
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/32—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring
- E21D15/325—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring by a clamping ring
-
- 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
- E21D15/14—Telescopic props
- E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
- E21D15/20—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with pawl, pin, cross-piece, or the like engaging with ratchet teeth, notches, holes, or the like, spaced apart at intervals
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Clamps And Clips (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE492525A true BE492525A (enrdf_load_stackoverflow) |
Family
ID=136746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE492525D BE492525A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE492525A (enrdf_load_stackoverflow) |
-
0
- BE BE492525D patent/BE492525A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4913731B2 (ja) | ボルト張力付与方法及びボルトを張力装置へ連結させる装置 | |
| EP0538128B1 (fr) | Moyens pour l'ancrage d'une pièce par rapport à une autre | |
| BE897900A (fr) | Liaison entre un premier élément et un alésage formé dans un second élément. | |
| FR2712056A1 (fr) | Dispositif pour la mise sous tension d'une commande de distribution. | |
| FR2642482A1 (fr) | Dispositif d'attache particulierement destine a la fixation de panneaux | |
| BE492525A (enrdf_load_stackoverflow) | ||
| FR2533002A1 (fr) | Dispositif de verrouillage pour un outil comportant des parties pouvant coulisser de maniere telescopique | |
| FR2838170A1 (fr) | Actionneurs d'embrayage | |
| BE1003587A3 (fr) | Dispositif de solidarisation d'arbre par emboitement. | |
| FR2666764A1 (fr) | Procede de fabrication d'une barre en materiau composite renforce par des fibres, comportant de part et d'autre un element de raccordement et barre fabriquee selon ce procede. | |
| FR2495029A1 (fr) | Ensemble de cylindre de laminoir et procede de montage d'un cylindre sur laminoir | |
| FR2518635A1 (fr) | Joint d'outil comportant des epaulements interieurs/exterieurs d'ajustage | |
| FR2724991A1 (fr) | Dispositif d'assemblage d'une pluralite d'elements adjacents entre eux | |
| BE493038A (enrdf_load_stackoverflow) | ||
| BE1014476A6 (fr) | Outil pour le forage de puits. | |
| BE536210A (enrdf_load_stackoverflow) | ||
| FR2497126A1 (fr) | Outil de presse avec element rapporte en materiau dur pour le formage de metaux, notamment d'alliages de cuivre et d'aluminium | |
| BE526351A (enrdf_load_stackoverflow) | ||
| BE503427A (enrdf_load_stackoverflow) | ||
| BE366920A (enrdf_load_stackoverflow) | ||
| BE414144A (enrdf_load_stackoverflow) | ||
| BE426174A (enrdf_load_stackoverflow) | ||
| BE511744A (enrdf_load_stackoverflow) | ||
| BE333312A (enrdf_load_stackoverflow) | ||
| BE522293A (enrdf_load_stackoverflow) |