BE642929A - - Google Patents

Info

Publication number
BE642929A
BE642929A BE642929A BE642929A BE642929A BE 642929 A BE642929 A BE 642929A BE 642929 A BE642929 A BE 642929A BE 642929 A BE642929 A BE 642929A BE 642929 A BE642929 A BE 642929A
Authority
BE
Belgium
Application number
BE642929A
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
Application filed filed Critical
Publication of BE642929A publication Critical patent/BE642929A/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
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Safety Valves (AREA)
  • Earth Drilling (AREA)
BE642929A 1963-01-26 1964-01-24 BE642929A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG36909A DE1195251B (de) 1963-01-26 1963-01-26 Ventilanordnung fuer hydraulische Grubenstempel

Publications (1)

Publication Number Publication Date
BE642929A true BE642929A (fr) 1964-05-15

Family

ID=7125502

Family Applications (1)

Application Number Title Priority Date Filing Date
BE642929A BE642929A (fr) 1963-01-26 1964-01-24

Country Status (4)

Country Link
BE (1) BE642929A (fr)
DE (1) DE1195251B (fr)
GB (1) GB1050951A (fr)
NL (1) NL6400493A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1239648B (de) * 1965-07-08 1967-05-03 Hoesch Bergbautechnik G M B H Hydraulischer Grubenstempel
DE1583067B1 (de) * 1967-09-02 1970-11-19 Thyssen Huette Ag Ventil fuer hydraulische Grubenstempel
DE2636794C2 (de) * 1975-09-09 1982-06-09 Voest-Alpine AG, 1011 Wien Gebirgsschlagventil für hydraulische Grubenausbauelemente
AT339237B (de) * 1975-09-09 1977-10-10 Voest Ag Hydraulischer grubenstempel
US4237769A (en) * 1978-04-03 1980-12-09 Commercial Shearing, Inc. Relief valves and mine props incorporating the same
GB2152635A (en) * 1984-01-05 1985-08-07 Dobson Park Ind Valve devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078516B (de) * 1956-07-17 1960-03-31 Bwg Bergwerk Walzwerk Nachgiebiger hydraulischer Grubenstempel
BE571152A (fr) * 1957-09-13
DE1137405B (de) * 1959-07-11 1962-10-04 Kloeckner Werke Ag UEberdruckventile fuer den hydraulischen Grubenausbau

Also Published As

Publication number Publication date
GB1050951A (fr)
NL6400493A (fr) 1964-07-27
DE1195251B (de) 1965-06-24

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