BE501546A - - Google Patents

Info

Publication number
BE501546A
BE501546A BE501546DA BE501546A BE 501546 A BE501546 A BE 501546A BE 501546D A BE501546D A BE 501546DA BE 501546 A BE501546 A BE 501546A
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.)
Publication of BE501546A publication Critical patent/BE501546A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated 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)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
BE501546D 1950-03-04 BE501546A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV643A DE974877C (de) 1950-03-04 1950-03-04 Kappenverbindung fuer den Strebausbau im Grubenbetrieb unter Tage

Publications (1)

Publication Number Publication Date
BE501546A true BE501546A (xx)

Family

ID=7569206

Family Applications (1)

Application Number Title Priority Date Filing Date
BE501546D BE501546A (xx) 1950-03-04

Country Status (3)

Country Link
BE (1) BE501546A (xx)
DE (1) DE974877C (xx)
NL (1) NL86396C (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018824B (de) * 1952-05-31 1957-11-07 Usines Et Acieries Leonard Gio Unterzug, insbesondere fuer Abbauraeume geringer Hoehe
DE1105821B (de) * 1955-04-07 1961-05-04 Josef Brand Kappenverbindung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018824B (de) * 1952-05-31 1957-11-07 Usines Et Acieries Leonard Gio Unterzug, insbesondere fuer Abbauraeume geringer Hoehe
DE1105821B (de) * 1955-04-07 1961-05-04 Josef Brand Kappenverbindung

Also Published As

Publication number Publication date
NL86396C (xx)
DE974877C (de) 1961-05-25

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