NL251933A - - Google Patents
Info
- Publication number
- NL251933A NL251933A NL251933DA NL251933A NL 251933 A NL251933 A NL 251933A NL 251933D A NL251933D A NL 251933DA NL 251933 A NL251933 A NL 251933A
- Authority
- NL
- Netherlands
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
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)
- Safety Valves (AREA)
- Fluid-Damping Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1959G0027435 DE1241390B (de) | 1959-07-03 | 1959-07-03 | Hydraulischer Grubenstempel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL251933A true NL251933A (da) |
Family
ID=7123209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL251933D NL251933A (da) | 1959-07-03 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE592567A (da) |
| DE (1) | DE1241390B (da) |
| GB (1) | GB954660A (da) |
| NL (1) | NL251933A (da) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT339237B (de) * | 1975-09-09 | 1977-10-10 | Voest Ag | Hydraulischer grubenstempel |
| HU183739B (en) * | 1981-12-15 | 1984-05-28 | Tatabanyai Szenbanyak | Hydraulic cylinder of combination operation particularly prop |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE899483C (de) * | 1953-11-05 | Eisenwerk Wanheim G.M.B.H., Duisburg-Wanheim | Eiserner Grubenstempel | |
| DE849682C (de) * | 1950-10-05 | 1952-09-18 | August Hoch | Aus Zylinder und Kolben bestehende Ausbauvorrichtung mit federnder OElbremse |
| DE928945C (de) * | 1951-06-09 | 1955-06-16 | Eisenwerk Wanheim G M B H | Verstellbarer hydraulischer Grubenstempel |
| DE1000315B (de) * | 1956-03-23 | 1957-01-10 | Hermann Schwarz K G | Mehrteiliges hydraulisches Stuetzelement fuer den Grubenausbau |
| BE563275A (da) * | 1956-12-27 |
-
0
- NL NL251933D patent/NL251933A/xx unknown
-
1959
- 1959-07-03 DE DE1959G0027435 patent/DE1241390B/de active Pending
-
1960
- 1960-06-28 GB GB2267460A patent/GB954660A/en not_active Expired
- 1960-07-01 BE BE592567A patent/BE592567A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1241390B (de) | 1967-06-01 |
| GB954660A (en) | 1964-04-08 |
| BE592567A (fr) | 1960-10-02 |