FR2415719B1 - - Google Patents
Info
- Publication number
- FR2415719B1 FR2415719B1 FR7836622A FR7836622A FR2415719B1 FR 2415719 B1 FR2415719 B1 FR 2415719B1 FR 7836622 A FR7836622 A FR 7836622A FR 7836622 A FR7836622 A FR 7836622A FR 2415719 B1 FR2415719 B1 FR 2415719B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- E21D23/04—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
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
-
- 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
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
- E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
- E21D23/086—Details of fixing devices 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)
- Framework For Endless Conveyors (AREA)
- Processing Of Meat And Fish (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19782803816 DE2803816A1 (de) | 1978-01-28 | 1978-01-28 | Einrichtung zur endabstuetzung eines schreitausbaus in geneigter und steiler lagerung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2415719A1 FR2415719A1 (fr) | 1979-08-24 |
| FR2415719B1 true FR2415719B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1983-10-21 |
Family
ID=6030658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7836622A Granted FR2415719A1 (fr) | 1978-01-28 | 1978-12-28 | Dispositif formant appui d'extremite d'un soutenement marchant dans une taille en semi-dressant ou en dressant |
Country Status (3)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2942943C2 (de) * | 1979-10-24 | 1981-11-26 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Vorrichtung zum Aufrechterhalten des vorgegebenen Mittenabstandes der Ausbauelemente eines Schreitausbaues für den Langfrontenabbau |
| CN116025402A (zh) * | 2023-02-28 | 2023-04-28 | 中煤科工开采研究院有限公司 | 一种液压支架 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1054651A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1900-01-01 | |||
| GB1153573A (en) * | 1965-07-17 | 1969-05-29 | Dobson Ltd W E & F | Improvements in or relating to Mine Roof Support systems |
| DE1277789B (de) * | 1967-01-13 | 1968-09-19 | Gewerk Eisenhuette Westfalia | Hydraulisch wanderndes Ausbaugestell |
| DE2355234A1 (de) * | 1973-11-05 | 1975-05-07 | Groetschel Karl Maria Dipl Ber | Vorrichtung zum einstellen der schreitrichtung einer gruppe von wanderausbaugestellen |
| DE2455938C2 (de) * | 1974-11-27 | 1976-09-02 | Ruhrkohle Ag | Einrichtung zum ausrichten des untersten schildes eines strebes mit schildausbau |
-
1978
- 1978-01-28 DE DE19782803816 patent/DE2803816A1/de not_active Withdrawn
- 1978-12-28 FR FR7836622A patent/FR2415719A1/fr active Granted
-
1979
- 1979-01-26 PL PL21301679A patent/PL115454B1/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2803816A1 (de) | 1979-08-09 |
| PL115454B1 (en) | 1981-04-30 |
| FR2415719A1 (fr) | 1979-08-24 |
| PL213016A1 (pl) | 1979-12-17 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |