NL235587A - - Google Patents

Info

Publication number
NL235587A
NL235587A NL235587DA NL235587A NL 235587 A NL235587 A NL 235587A NL 235587D A NL235587D A NL 235587DA NL 235587 A NL235587 A NL 235587A
Authority
NL
Netherlands
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.)
Publication of NL235587A publication Critical patent/NL235587A/xx

Links

Classifications

    • 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
    • E21D15/60—Devices for withdrawing props or chocks
    • E21D15/603—Devices for withdrawing props or chocks by means of hydraulic 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
    • E21D15/15—Means counteracting entry of dirt; Built-in cleaning 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
    • 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
    • E21D15/60—Devices for withdrawing props or chocks
    • E21D15/606—Devices for withdrawing props or chocks the props being moved systematically
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
    • E21F13/086—Armoured conveyors shifting devices

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)
  • Structural Engineering (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Filtration Of Liquid (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
NL235587D 1958-01-30 NL235587A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB305358A GB876483A (en) 1958-01-30 1958-01-30 Improvements in or relating to hydraulic pillar supports for mines

Publications (1)

Publication Number Publication Date
NL235587A true NL235587A (xx)

Family

ID=9751089

Family Applications (1)

Application Number Title Priority Date Filing Date
NL235587D NL235587A (xx) 1958-01-30

Country Status (4)

Country Link
DE (1) DE1164961B (xx)
FR (1) FR1221089A (xx)
GB (1) GB876483A (xx)
NL (1) NL235587A (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046354A (en) * 1975-08-26 1977-09-06 Stith Jr Morris Randall Apparatus for positioning and supporting a machine
GB2357806A (en) * 1999-12-02 2001-07-04 Trevor John Honour Load bearing props
DE10045680B4 (de) * 2000-09-15 2006-03-09 Dbt Gmbh Hydraulikzylinder als Grubenstempel oder Rückzylindereinheit im untertägigen Bergbau

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE899483C (de) * 1953-11-05 Eisenwerk Wanheim G.M.B.H., Duisburg-Wanheim Eiserner Grubenstempel
DE640845C (de) * 1935-05-27 1937-01-13 Wilhelm Fehlemann Nachgiebiger Grubenstempel
DE901282C (de) * 1943-08-01 1954-01-11 Eisenwerk Wanheim G M B H Eiserner Grubenstempel
DE809903C (de) * 1948-08-25 1951-08-02 Mavor & Coulson Ltd Hydraulischer Stempel fuer den Grubenbetrieb
DE846238C (de) * 1949-10-28 1952-08-11 Mannesmannroehren Werke Steink Verstellbarer metallischer Grubenstempel
DE827939C (de) * 1950-02-17 1952-01-14 Peter Ewald Zapp Hydraulischer Grubenstempel
DE871883C (de) * 1950-03-17 1953-03-26 Der Niederlaendische Staat Metallener Grubenstempel mit zugehoerigem Kopf
DE926601C (de) * 1950-04-26 1955-04-21 Konrad Grebe Hydraulischer Grubenstempel
DE918561C (de) * 1951-08-08 1954-09-30 Arthur Hamel Hydraulischer Grubenstempel
DE924686C (de) * 1951-11-30 1955-03-07 Emil Weber Hydraulische Setzvorrichtung fuer Stempel
DE922527C (de) * 1952-05-20 1955-01-17 Ringfeder Gmbh Grubenstempel
DE934342C (de) * 1954-06-27 1955-10-20 Gutehoffnungshuette Sterkrade Mehrteiliger hydraulischer Grubenstempel
DE967868C (de) * 1955-03-31 1957-12-19 Robel & Co G Schlaggeraet

Also Published As

Publication number Publication date
FR1221089A (fr) 1960-05-31
DE1164961B (de) 1964-03-12
GB876483A (en) 1961-09-06

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