BE399315A - - Google Patents
Info
- Publication number
- BE399315A BE399315A BE399315DA BE399315A BE 399315 A BE399315 A BE 399315A BE 399315D A BE399315D A BE 399315DA BE 399315 A BE399315 A BE 399315A
- Authority
- BE
- Belgium
- Prior art keywords
- yoke
- irons
- pad
- iron
- prop
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 235000000396 iron Nutrition 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 210000003127 knee Anatomy 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 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
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)
- Seats For Vehicles (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE399315A true BE399315A (OSRAM) |
Family
ID=65662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE399315D BE399315A (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE399315A (OSRAM) |
-
0
- BE BE399315D patent/BE399315A/fr unknown
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