BE675424A - - Google Patents
Info
- Publication number
- BE675424A BE675424A BE675424DA BE675424A BE 675424 A BE675424 A BE 675424A BE 675424D A BE675424D A BE 675424DA BE 675424 A BE675424 A BE 675424A
- 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
- E21D23/0069—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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/0206—Hydraulically operated extension devices
-
- 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
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
- E21D23/066—Pivoted cantilever extensions therefor
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)
- Architecture (AREA)
- Structural Engineering (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH55384A DE1230745B (de) | 1965-03-06 | 1965-03-06 | An einer Kappe angelenkte Vorpfaendkappe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE675424A true BE675424A (US20020128544A1-20020912-P00008.png) | 1966-05-16 |
Family
ID=7159019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE675424D BE675424A (US20020128544A1-20020912-P00008.png) | 1965-03-06 | 1966-01-21 |
Country Status (5)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2819172C2 (de) * | 1978-05-02 | 1985-01-24 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Vorpfändeinrichtung für hydraulischen Schreitausbau |
| GB2048355A (en) * | 1979-05-08 | 1980-12-10 | Gewerk Eisenhuette Westfalia | Mine roof supports |
| GB2082236B (en) * | 1980-08-06 | 1984-03-07 | Dowty Mining Equipment Ltd | Mine roof support with cantilever extension on roof plate |
| DE3107209A1 (de) * | 1981-02-26 | 1982-09-09 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Kappenanstellvorrichtung |
| DE3115984A1 (de) * | 1981-04-22 | 1982-11-25 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Kappenanstellvorrichtung |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1164351B (de) * | 1954-09-10 | 1964-03-05 | Hansjoachim Von Hippel Dr Ing | Vorpfaendkappe fuer Stempelausbau |
-
1965
- 1965-03-06 DE DEH55384A patent/DE1230745B/de active Pending
- 1965-12-20 NL NL6516546A patent/NL6516546A/xx unknown
-
1966
- 1966-01-20 FR FR46579A patent/FR1464545A/fr not_active Expired
- 1966-01-21 BE BE675424D patent/BE675424A/xx unknown
- 1966-03-07 GB GB9964/66A patent/GB1079110A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1230745B (de) | 1966-12-22 |
| GB1079110A (en) | 1967-08-16 |
| FR1464545A (fr) | 1966-07-22 |
| NL6516546A (US20020128544A1-20020912-P00008.png) | 1966-09-07 |
