BE516675A - - Google Patents
Info
- Publication number
- BE516675A BE516675A BE516675DA BE516675A BE 516675 A BE516675 A BE 516675A BE 516675D A BE516675D A BE 516675DA BE 516675 A BE516675 A BE 516675A
- Authority
- BE
- Belgium
- Prior art keywords
- shells
- wedge
- faces
- stop
- presser shoe
- Prior art date
Links
- 238000009434 installation Methods 0.000 claims description 2
- 238000005065 mining Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process 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)
- Mutual Connection Of Rods And Tubes (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE516675A true BE516675A (de) |
Family
ID=153798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE516675D BE516675A (de) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE516675A (de) |
-
0
- BE BE516675D patent/BE516675A/fr unknown
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