PL223346A1 - - Google Patents
Info
- Publication number
- PL223346A1 PL223346A1 PL22334680A PL22334680A PL223346A1 PL 223346 A1 PL223346 A1 PL 223346A1 PL 22334680 A PL22334680 A PL 22334680A PL 22334680 A PL22334680 A PL 22334680A PL 223346 A1 PL223346 A1 PL 223346A1
- Authority
- PL
- Poland
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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/26—Hydraulic or pneumatic control
-
- 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting 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)
- Safety Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Presses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792914884 DE2914884A1 (de) | 1979-04-12 | 1979-04-12 | Einrichtung zum setzen hydraulischer grubenstempel mit hoher und gleichmaessiger setzkraft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL223346A1 true PL223346A1 (US20030199744A1-20031023-C00003.png) | 1981-01-30 |
| PL125322B1 PL125322B1 (en) | 1983-04-30 |
Family
ID=6068183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL1980223346A PL125322B1 (en) | 1979-04-12 | 1980-04-09 | Apparatus for seating hydraulic mine props with a strong and uniform force |
Country Status (8)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3128279A1 (de) * | 1981-07-17 | 1983-02-03 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Nachsetzsteuerung fuer einen hydraulischen stempelausbau sowie hydraulisch ansteuerbares rueckschlagventil |
| DE3212747A1 (de) * | 1982-04-06 | 1983-10-06 | Gewerk Eisenhuette Westfalia | Einrichtung zur hubsteuerung einer zylinddergruppe eines hydraulischen ausbausystems, insbesondere zum setzen der stempel einer schreitausbaueinheit |
| DE3301674C1 (de) * | 1983-01-20 | 1984-01-05 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Steuerung fuer hydraulische Stempel von Schreitausbaugestellen |
| GB2137314B (en) * | 1983-03-26 | 1986-07-23 | Dobson Park Ind | Valve for mine support |
| PL146170B1 (en) * | 1984-12-10 | 1989-01-31 | Ct Kt Maszyn Gorniczych Komag | Apparatus for changing curability and mineablity of a mineral deposit |
| DE3546278C1 (de) * | 1985-12-28 | 1987-07-02 | Bergwerksverband Gmbh | Nachsetzsteuerung fuer den Strebausbau |
| DE3931625C1 (en) * | 1989-09-22 | 1990-08-09 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal, De | Underground mine roof support - maintains constant residual pressure during advance |
| GB9009859D0 (en) * | 1990-05-02 | 1990-06-27 | Meco Mining Equip | A mine roof support |
| GB2274325B (en) * | 1993-01-13 | 1996-04-03 | Meco Mining Equip | A yield valve |
| CN103775115A (zh) * | 2014-01-21 | 2014-05-07 | 焦作欣扬程煤矿设备有限公司 | 侧摆移位立式压缸机 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1024167A (en) * | 1964-02-14 | 1966-03-30 | Dowty Mining Equipment Ltd | Roof support assembly suitable for use in mines |
| GB1135942A (en) * | 1964-12-07 | 1968-12-11 | Groetschel Karl Maria | Improvements relating to roof supports for mine workings |
| GB1180578A (en) * | 1967-03-06 | 1970-02-04 | Podmoskovny G Pk I Exi Gornogo | Advancing Mine Roof Supports |
| DE1290109B (de) * | 1967-10-21 | 1969-03-06 | Gewerk Eisenhuette Westfalia | Stempel fuer den Ausbau bzw. zur Abspannung im Streb/Streckenuebergang |
| DE1750834A1 (de) * | 1968-06-10 | 1971-04-29 | Gewerk Eisenhuette Westfalia | UEberdruckventilpatrone mit Kolben-O-Ring-Dichtung |
| DE2146502C3 (de) * | 1971-09-17 | 1982-04-29 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Ventilanordnung zum Setzen hydraulischer Grubenstempel mit hoher Setzkraft |
| DE2749312C2 (de) * | 1977-11-04 | 1984-12-20 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Steuereinrichtung mit Nachsetzautomatik für einen hydraulischen Stempelausbau |
| DE2803283C2 (de) * | 1978-01-26 | 1992-12-10 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Überdruckventil für hydraulische Grubenstempel |
-
1979
- 1979-04-12 DE DE19792914884 patent/DE2914884A1/de active Granted
-
1980
- 1980-04-01 CA CA000348972A patent/CA1138303A/en not_active Expired
- 1980-04-02 AU AU57100/80A patent/AU533562B2/en not_active Ceased
- 1980-04-08 GB GB8011620A patent/GB2047316B/en not_active Expired
- 1980-04-08 GB GB8215240A patent/GB2096223B/en not_active Expired
- 1980-04-09 PL PL1980223346A patent/PL125322B1/pl unknown
- 1980-04-09 FR FR8007948A patent/FR2455673B2/fr not_active Expired
- 1980-04-10 BE BE0/200176A patent/BE882725A/fr not_active IP Right Cessation
- 1980-04-10 ZA ZA00802130A patent/ZA802130B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2455673B2 (fr) | 1987-05-07 |
| ZA802130B (en) | 1981-05-27 |
| FR2455673A2 (fr) | 1980-11-28 |
| GB2096223A (en) | 1982-10-13 |
| GB2096223B (en) | 1983-05-11 |
| GB2047316A (en) | 1980-11-26 |
| BE882725A (fr) | 1980-07-31 |
| PL125322B1 (en) | 1983-04-30 |
| CA1138303A (en) | 1982-12-28 |
| DE2914884C2 (US20030199744A1-20031023-C00003.png) | 1987-05-14 |
| AU5710080A (en) | 1980-10-16 |
| AU533562B2 (en) | 1983-12-01 |
| DE2914884A1 (de) | 1980-10-30 |
| GB2047316B (en) | 1983-04-20 |
