BE558677A - - Google Patents
Info
- Publication number
- BE558677A BE558677A BE558677DA BE558677A BE 558677 A BE558677 A BE 558677A BE 558677D A BE558677D A BE 558677DA BE 558677 A BE558677 A BE 558677A
- Authority
- BE
- Belgium
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Safety Valves (AREA)
- Actuator (AREA)
- Reciprocating Pumps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2013456A GB838790A (en) | 1956-06-29 | 1956-06-29 | Improvements in or relating to telescopic hydraulic props |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE558677A true BE558677A (en:Method) |
Family
ID=10140922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE558677D BE558677A (en:Method) | 1956-06-29 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE558677A (en:Method) |
| DE (1) | DE1125864B (en:Method) |
| FR (1) | FR1177614A (en:Method) |
| GB (1) | GB838790A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3133720A (en) * | 1962-03-27 | 1964-05-19 | Commercial Shearing | Yieldable pit posts |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1016105A (fr) * | 1950-04-07 | 1952-11-03 | Pilier extensible à commande hydraulique, utilisable comme étançon de mine susceptible de supporter de fortes pressions | |
| DE919525C (de) * | 1951-05-01 | 1954-10-25 | Gullick Ltd | Hydraulischer Grubenstempel |
| DE934342C (de) * | 1954-06-27 | 1955-10-20 | Gutehoffnungshuette Sterkrade | Mehrteiliger hydraulischer Grubenstempel |
-
0
- BE BE558677D patent/BE558677A/xx unknown
-
1956
- 1956-06-29 GB GB2013456A patent/GB838790A/en not_active Expired
-
1957
- 1957-06-28 FR FR1177614D patent/FR1177614A/fr not_active Expired
- 1957-06-28 DE DEH30487A patent/DE1125864B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR1177614A (fr) | 1959-04-28 |
| DE1125864B (de) | 1962-03-22 |
| GB838790A (en) | 1960-06-22 |