BE494573A - - Google Patents
Info
- Publication number
- BE494573A BE494573A BE494573DA BE494573A BE 494573 A BE494573 A BE 494573A BE 494573D A BE494573D A BE 494573DA BE 494573 A BE494573 A BE 494573A
- Authority
- BE
- Belgium
- Prior art keywords
- lock according
- chamber
- pressure
- prop
- discharge member
- Prior art date
Links
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 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
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
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 |
|---|---|
| BE494573A true BE494573A (enrdf_load_stackoverflow) |
Family
ID=138297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE494573D BE494573A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE494573A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE920182C (de) * | 1951-12-29 | 1954-11-15 | Gewerk Eisenhuette Westfalia | Grubenstempel mit einer allseitig umschlossenen, aus Gummi oder gummiaehnlichem Werkstoff bestehenden Blase als Druckkoerper |
| DE921563C (de) * | 1951-08-14 | 1954-12-20 | Ringfeder Gmbh | Klemmringschloss fuer Grubenstempel |
-
0
- BE BE494573D patent/BE494573A/fr unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE921563C (de) * | 1951-08-14 | 1954-12-20 | Ringfeder Gmbh | Klemmringschloss fuer Grubenstempel |
| DE920182C (de) * | 1951-12-29 | 1954-11-15 | Gewerk Eisenhuette Westfalia | Grubenstempel mit einer allseitig umschlossenen, aus Gummi oder gummiaehnlichem Werkstoff bestehenden Blase als Druckkoerper |
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