BE499524A - - Google Patents

Info

Publication number
BE499524A
BE499524A BE499524DA BE499524A BE 499524 A BE499524 A BE 499524A BE 499524D A BE499524D A BE 499524DA BE 499524 A BE499524 A BE 499524A
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 BE499524A publication Critical patent/BE499524A/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)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Bridges Or Land Bridges (AREA)
BE499524D 1949-11-25 BE499524A (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE719215X 1949-11-25

Publications (1)

Publication Number Publication Date
BE499524A true BE499524A (ko)

Family

ID=6627150

Family Applications (1)

Application Number Title Priority Date Filing Date
BE499524D BE499524A (ko) 1949-11-25

Country Status (3)

Country Link
BE (1) BE499524A (ko)
FR (1) FR1028354A (ko)
GB (1) GB719215A (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1064008B (de) * 1953-02-27 1959-08-27 Gutehoffnungshuette Sterkrade Gelenkverbindung zweier Grubenausbaukappen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1064008B (de) * 1953-02-27 1959-08-27 Gutehoffnungshuette Sterkrade Gelenkverbindung zweier Grubenausbaukappen

Also Published As

Publication number Publication date
GB719215A (en) 1954-12-01
FR1028354A (fr) 1953-05-21

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