BE409505A - - Google Patents
Info
- Publication number
- BE409505A BE409505A BE409505DA BE409505A BE 409505 A BE409505 A BE 409505A BE 409505D A BE409505D A BE 409505DA BE 409505 A BE409505 A BE 409505A
- Authority
- BE
- Belgium
- Prior art keywords
- sheath
- cams
- cam
- prop
- embodiment according
- Prior art date
Links
- 238000005065 mining Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding 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
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)
- Sheet Holders (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE409505A true BE409505A (enrdf_load_stackoverflow) |
Family
ID=73890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE409505D BE409505A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE409505A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE977408C (de) * | 1951-02-24 | 1966-05-26 | Karl Gerlach | Grubenstempel |
-
0
- BE BE409505D patent/BE409505A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE977408C (de) * | 1951-02-24 | 1966-05-26 | Karl Gerlach | Grubenstempel |
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