LU34334A1 - - Google Patents
Info
- Publication number
- LU34334A1 LU34334A1 LU34334DA LU34334A1 LU 34334 A1 LU34334 A1 LU 34334A1 LU 34334D A LU34334D A LU 34334DA LU 34334 A1 LU34334 A1 LU 34334A1
- Authority
- LU
- Luxembourg
Links
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
- E21D15/45—Hydraulic, pneumatic, or hydraulic-pneumatic props having closed fluid system, e.g. with built-in pumps or accumulators
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)
- Press Drives And Press Lines (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Reciprocating Pumps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE794547X | 1955-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU34334A1 true LU34334A1 (en) |
Family
ID=20339739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU34334D LU34334A1 (en) | 1955-04-25 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE547272A (en) |
| DE (1) | DE1001956B (en) |
| FR (1) | FR1192133A (en) |
| GB (1) | GB794547A (en) |
| LU (1) | LU34334A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE568439A (en) * | 1957-06-11 | |||
| DE1135399B (en) * | 1958-09-13 | 1962-08-30 | Hermann Schwarz Kommanditgesel | Pressure medium operated pit support element |
| DE1082212B (en) * | 1958-12-31 | 1960-05-25 | Bwg Bergwerk Walzwerk | Ventilation valve for hydraulic pit rams |
| DE1191776B (en) * | 1962-04-09 | 1965-04-29 | Kloeckner Werke Ag | Hydraulic pit ram |
| BE635501A (en) * | 1962-07-27 | 1964-01-27 | ||
| GB977800A (en) * | 1962-08-21 | 1964-12-16 | Electro Hydraulics Ltd | Improvements in or relating to mine roof supports |
-
0
- BE BE547272D patent/BE547272A/xx unknown
- LU LU34334D patent/LU34334A1/xx unknown
-
1956
- 1956-04-25 FR FR1192133D patent/FR1192133A/en not_active Expired
- 1956-04-25 DE DEA24767A patent/DE1001956B/en active Pending
- 1956-04-25 GB GB12734/56A patent/GB794547A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE547272A (en) | |
| FR1192133A (en) | 1959-10-23 |
| GB794547A (en) | 1958-05-07 |
| DE1001956B (en) | 1957-02-07 |