BE416285A - - Google Patents
Info
- Publication number
- BE416285A BE416285A BE416285DA BE416285A BE 416285 A BE416285 A BE 416285A BE 416285D A BE416285D A BE 416285DA BE 416285 A BE416285 A BE 416285A
- Authority
- BE
- Belgium
- Prior art keywords
- wedge
- barrel
- collar
- screw
- elastic
- Prior art date
Links
- 235000000396 iron Nutrition 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000002028 premature Effects 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 230000001131 transforming effect Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 description 2
- 241000581364 Clinitrachus argentatus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000011475 lollipops Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005482 strain hardening 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
- E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations
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)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE416285A true BE416285A (cs) |
Family
ID=79234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE416285D BE416285A (cs) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE416285A (cs) |
-
0
- BE BE416285D patent/BE416285A/fr unknown
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