BE488277A - - Google Patents
Info
- Publication number
- BE488277A BE488277A BE488277DA BE488277A BE 488277 A BE488277 A BE 488277A BE 488277D A BE488277D A BE 488277DA BE 488277 A BE488277 A BE 488277A
- Authority
- BE
- Belgium
- Prior art keywords
- cheek
- prop
- lock according
- wedge
- expandable device
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 239000012729 immediate-release (IR) formulation Substances 0.000 description 1
- 238000009434 installation 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
- E21D15/40—Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted
-
- 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
- E21D15/43—Details of wedges
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE488277A true BE488277A (enrdf_load_html_response) |
Family
ID=133512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE488277D BE488277A (enrdf_load_html_response) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE488277A (enrdf_load_html_response) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE972849C (de) * | 1950-09-09 | 1959-10-08 | Le Progres Charbonnier Prochar | Grubenstempel |
| DE977408C (de) * | 1951-02-24 | 1966-05-26 | Karl Gerlach | Grubenstempel |
-
0
- BE BE488277D patent/BE488277A/fr unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE972849C (de) * | 1950-09-09 | 1959-10-08 | Le Progres Charbonnier Prochar | Grubenstempel |
| DE977408C (de) * | 1951-02-24 | 1966-05-26 | Karl Gerlach | Grubenstempel |
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