BE655844A - - Google Patents
Info
- Publication number
- BE655844A BE655844A BE655844DA BE655844A BE 655844 A BE655844 A BE 655844A BE 655844D A BE655844D A BE 655844DA BE 655844 A BE655844 A BE 655844A
- 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Fluid Mechanics (AREA)
- Actuator (AREA)
- Lining And Supports For Tunnels (AREA)
- Fluid-Damping Devices (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER36680A DE1231194B (de) | 1963-11-29 | 1963-11-29 | Mehrstufiger hydraulischer Grubenstempel |
DER41253A DE1237040B (de) | 1963-11-29 | 1965-08-06 | Mehrstufiger hydraulischer Grubenstempel |
Publications (1)
Publication Number | Publication Date |
---|---|
BE655844A true BE655844A (sv) | 1965-03-16 |
Family
ID=25991737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE655844D BE655844A (sv) | 1963-11-29 | 1964-11-17 |
Country Status (6)
Country | Link |
---|---|
US (2) | US3241801A (sv) |
JP (1) | JPS5117651B1 (sv) |
BE (1) | BE655844A (sv) |
DE (1) | DE1237040B (sv) |
GB (2) | GB1065559A (sv) |
NL (1) | NL6413598A (sv) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998022695A1 (de) * | 1996-11-20 | 1998-05-28 | Dbt Deutsche Bergbautechnik Gmbh | Hydraulischer doppelteleskopstempel |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1226972B (de) * | 1964-10-20 | 1966-10-20 | Gewerk Eisenhuette Westfalia | Hydraulischer Doppel-Teleskopstempel |
US3592108A (en) * | 1969-02-07 | 1971-07-13 | Borje Oscar Rosaen | Fluid cylinder |
GB1280899A (en) * | 1969-06-21 | 1972-07-05 | Gewerk Eisenhuette Westfalia | Improvements in hydraulic props |
PL80403B3 (sv) * | 1969-11-21 | 1975-08-30 | ||
US3858485A (en) * | 1971-01-27 | 1975-01-07 | Borje O Rosaen | Fluid cylinder |
JPS4863172A (sv) * | 1971-12-03 | 1973-09-03 | ||
JPS5512006Y2 (sv) * | 1972-03-02 | 1980-03-15 | ||
US3791628A (en) * | 1972-07-26 | 1974-02-12 | Ocean Science & Eng | Motion compensated crown block system |
FR2253160B1 (sv) * | 1973-12-03 | 1977-06-24 | Poclain Sa | |
US4076465A (en) * | 1974-01-18 | 1978-02-28 | Pauliukonis Richard S | Volumetric proportioning diluter |
US3986438A (en) * | 1975-09-08 | 1976-10-19 | Deere & Company | Hydraulic cylinder with integral feedback cylinder |
DE2719848C2 (de) * | 1977-05-04 | 1985-09-26 | Montanhydraulik Gmbh & Co Kg, 4755 Holzwickede | Mehrstufiger hydraulischer Teleskopzylinder |
ZA804072B (en) * | 1979-08-07 | 1981-06-24 | Dobson Park Ind | Telescoping jack |
US4323427A (en) * | 1979-09-10 | 1982-04-06 | General Electric Company | Deceleration buffer for hydraulic linear motion drive |
DE2941168A1 (de) * | 1979-10-11 | 1981-04-23 | Thyssen Industrie Ag, 4300 Essen | Hydraulisch betaetigbares schubkolbengetriebe, vornehmlich zur verwendung im bergbau |
DE3213468A1 (de) * | 1982-04-10 | 1983-10-13 | Ecker Maschinenbau GmbH, 6680 Neunkirchen | Hydraulischer grubenstempel |
DE3318641A1 (de) * | 1982-12-22 | 1984-06-28 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Einrichtung zur steuerung der schiebekappenzylinder hydraulischer schreitausbaueinheiten |
US4516468A (en) * | 1983-01-10 | 1985-05-14 | Hydraulic Technology Corporation | Double acting telescopic cylinder construction |
DE3420528A1 (de) * | 1984-06-01 | 1985-12-05 | Stabilus Gmbh, 5400 Koblenz | Stufenlos verstellbare hubvorrichtung |
DE3622424A1 (de) * | 1986-07-03 | 1988-01-14 | Montan Hydraulik Gmbh & Co Kg | Zweistufiger teleskopzylinder |
US5953967A (en) * | 1996-05-28 | 1999-09-21 | Junkers; John | Fluid-operated cylinder-piston unit, and a tool provided therewith |
GB2357806A (en) * | 1999-12-02 | 2001-07-04 | Trevor John Honour | Load bearing props |
CN102454658B (zh) * | 2010-10-25 | 2014-12-10 | 徐州重型机械有限公司 | 臂架***及其伸缩油缸 |
CN107387491B (zh) * | 2016-05-16 | 2018-11-30 | 卡特彼勒(郑州)有限公司 | 双作用液压机构、多级伸缩液压机构及液压支架 |
CN106969002A (zh) * | 2017-04-10 | 2017-07-21 | 湖北工业大学 | 两级双作用液压油缸 |
CN111058882B (zh) * | 2019-12-12 | 2021-02-26 | 天地科技股份有限公司 | 一种防冲击超前液压支架的顶梁 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2151057A (en) * | 1936-10-07 | 1939-03-21 | Suth Jack | Well drilling machine |
US2364741A (en) * | 1942-11-26 | 1944-12-12 | St Paul Hydraulic Hoist Compan | Telescopic jack structure |
US2517153A (en) * | 1946-08-16 | 1950-08-01 | Gar Wood Ind Inc | Telescopic power down hoist |
US2487920A (en) * | 1948-05-25 | 1949-11-15 | John A Celenza | Hydraulic ram |
US2933070A (en) * | 1958-08-12 | 1960-04-19 | Rheinstahl Siegener Eisenbahnb | Double-acting hydraulic jack |
GB905379A (en) * | 1960-03-23 | 1962-09-05 | Dowty Mining Equipment Ltd | Improvements relating to hydraulic mine roof supporting devices |
DE1153705B (de) * | 1960-10-01 | 1963-09-05 | Rheinstahl Gmbh Wanheim | Hydraulischer Grubenstempel |
DE1138007B (de) * | 1960-12-16 | 1962-10-18 | Bosch Gmbh Robert | Mehrteiliger Grubenstempel |
US3190324A (en) * | 1962-07-27 | 1965-06-22 | Nordberg Manufacturing Co | Fluid piston and cylinder assembly for use in railway tie cutters and the like |
FR1343862A (fr) * | 1962-11-03 | 1963-11-22 | Pousseur-ravanceur, étançon, distributeur d'étançon et système de distribution de soutènement marchant |
-
1964
- 1964-11-17 BE BE655844D patent/BE655844A/xx unknown
- 1964-11-23 NL NL6413598A patent/NL6413598A/xx unknown
- 1964-11-27 GB GB48314/64A patent/GB1065559A/en not_active Expired
- 1964-11-30 US US414541A patent/US3241801A/en not_active Expired - Lifetime
-
1965
- 1965-08-06 DE DER41253A patent/DE1237040B/de active Pending
-
1966
- 1966-07-14 JP JP41045708A patent/JPS5117651B1/ja active Pending
- 1966-07-29 GB GB34098/66A patent/GB1126940A/en not_active Expired
- 1966-08-08 US US571369A patent/US3426649A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998022695A1 (de) * | 1996-11-20 | 1998-05-28 | Dbt Deutsche Bergbautechnik Gmbh | Hydraulischer doppelteleskopstempel |
CN1084425C (zh) * | 1996-11-20 | 2002-05-08 | Dbt德国矿业工程有限责任公司 | 液压双套管支柱 |
Also Published As
Publication number | Publication date |
---|---|
US3426649A (en) | 1969-02-11 |
JPS5117651B1 (sv) | 1976-06-03 |
DE1237040B (de) | 1967-03-23 |
GB1126940A (en) | 1968-09-11 |
GB1065559A (en) | 1967-04-19 |
NL6413598A (sv) | 1965-05-31 |
US3241801A (en) | 1966-03-22 |