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
Application number
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DER36680A external-priority patent/DE1231194B/de
Application filed filed Critical
Publication of BE655844A publication Critical patent/BE655844A/xx

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)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Fluid-Damping Devices (AREA)
  • Lining And Supports For Tunnels (AREA)
BE655844D 1963-11-29 1964-11-17 BE655844A (enrdf_load_stackoverflow)

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 (enrdf_load_stackoverflow) 1965-03-16

Family

ID=25991737

Family Applications (1)

Application Number Title Priority Date Filing Date
BE655844D BE655844A (enrdf_load_stackoverflow) 1963-11-29 1964-11-17

Country Status (6)

Country Link
US (2) US3241801A (enrdf_load_stackoverflow)
JP (1) JPS5117651B1 (enrdf_load_stackoverflow)
BE (1) BE655844A (enrdf_load_stackoverflow)
DE (1) DE1237040B (enrdf_load_stackoverflow)
GB (2) GB1065559A (enrdf_load_stackoverflow)
NL (1) NL6413598A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
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 (27)

* Cited by examiner, † Cited by third party
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 (enrdf_load_stackoverflow) * 1969-11-21 1975-08-30
US3858485A (en) * 1971-01-27 1975-01-07 Borje O Rosaen Fluid cylinder
JPS4863172A (enrdf_load_stackoverflow) * 1971-12-03 1973-09-03
JPS5512006Y2 (enrdf_load_stackoverflow) * 1972-03-02 1980-03-15
US3791628A (en) * 1972-07-26 1974-02-12 Ocean Science & Eng Motion compensated crown block system
FR2253160B1 (enrdf_load_stackoverflow) * 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
RU2161253C1 (ru) * 2000-03-07 2000-12-27 Пелевин Юрий Владимирович Силовой гидроцилиндр
CN102454658B (zh) * 2010-10-25 2014-12-10 徐州重型机械有限公司 臂架系统及其伸缩油缸
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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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
NL6413598A (enrdf_load_stackoverflow) 1965-05-31
US3241801A (en) 1966-03-22
DE1237040B (de) 1967-03-23
US3426649A (en) 1969-02-11
GB1065559A (en) 1967-04-19
JPS5117651B1 (enrdf_load_stackoverflow) 1976-06-03
GB1126940A (en) 1968-09-11

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