BE658329A - - Google Patents
Info
- Publication number
- BE658329A BE658329A BE658329DA BE658329A BE 658329 A BE658329 A BE 658329A BE 658329D A BE658329D A BE 658329DA BE 658329 A BE658329 A BE 658329A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
- E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with advancing shifting devices connected therewith
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
- E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2315/64A GB1086532A (en) | 1964-01-18 | 1964-01-18 | Improvements in and relating to hydraulic mine roof supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE658329A true BE658329A (US08087162-20120103-C00010.png) | 1965-04-30 |
Family
ID=9737396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE658329D BE658329A (US08087162-20120103-C00010.png) | 1964-01-18 | 1965-01-15 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3302529A (US08087162-20120103-C00010.png) |
| BE (1) | BE658329A (US08087162-20120103-C00010.png) |
| FR (1) | FR1421056A (US08087162-20120103-C00010.png) |
| GB (1) | GB1086532A (US08087162-20120103-C00010.png) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2329428A (en) * | 1997-09-20 | 1999-03-24 | Joy Mining Machinery Limited | Improvements in and relating to a hydraulic control system |
| CN105240039A (zh) * | 2015-10-29 | 2016-01-13 | 中国矿业大学 | 浮摇式液压支架 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1223621A (en) * | 1916-07-24 | 1917-04-24 | Charles F Scherenzel | Lifting-jack. |
| US1850879A (en) * | 1930-04-25 | 1932-03-22 | Nathan C Hunt | Valve and coupling |
| US3106378A (en) * | 1960-12-27 | 1963-10-08 | Stile Craft Mfg Inc | Quick connect, valved coupling |
| NL295875A (US08087162-20120103-C00010.png) * | 1962-07-31 |
-
1964
- 1964-01-18 GB GB2315/64A patent/GB1086532A/en not_active Expired
-
1965
- 1965-01-15 BE BE658329D patent/BE658329A/xx unknown
- 1965-01-18 FR FR2302A patent/FR1421056A/fr not_active Expired
- 1965-01-18 US US426325A patent/US3302529A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR1421056A (fr) | 1965-12-10 |
| GB1086532A (en) | 1967-10-11 |
| US3302529A (en) | 1967-02-07 |
