DE2227626A1 - - Google Patents

Info

Publication number
DE2227626A1
DE2227626A1 DE19722227626 DE2227626A DE2227626A1 DE 2227626 A1 DE2227626 A1 DE 2227626A1 DE 19722227626 DE19722227626 DE 19722227626 DE 2227626 A DE2227626 A DE 2227626A DE 2227626 A1 DE2227626 A1 DE 2227626A1
Authority
DE
Germany
Legal status (The legal status 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 status listed.)
Granted
Application number
DE19722227626
Other languages
German (de)
Other versions
DE2227626C2 (de
DE2227626B1 (de
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
Priority to DE19722227626 priority Critical patent/DE2227626C2/de
Publication of DE2227626A1 publication Critical patent/DE2227626A1/de
Publication of DE2227626B1 publication Critical patent/DE2227626B1/de
Application granted granted Critical
Publication of DE2227626C2 publication Critical patent/DE2227626C2/de
Expired legal-status Critical Current

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)
  • Pivots And Pivotal Connections (AREA)
DE19722227626 1972-06-07 1972-06-07 Schwenkbare Kappenverbindung für den Schreitausbau Expired DE2227626C2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19722227626 DE2227626C2 (de) 1972-06-07 1972-06-07 Schwenkbare Kappenverbindung für den Schreitausbau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722227626 DE2227626C2 (de) 1972-06-07 1972-06-07 Schwenkbare Kappenverbindung für den Schreitausbau

Publications (3)

Publication Number Publication Date
DE2227626A1 true DE2227626A1 (enExample) 1973-11-08
DE2227626B1 DE2227626B1 (de) 1973-11-08
DE2227626C2 DE2227626C2 (de) 1974-06-06

Family

ID=5847028

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722227626 Expired DE2227626C2 (de) 1972-06-07 1972-06-07 Schwenkbare Kappenverbindung für den Schreitausbau

Country Status (1)

Country Link
DE (1) DE2227626C2 (enExample)

Also Published As

Publication number Publication date
DE2227626C2 (de) 1974-06-06
DE2227626B1 (de) 1973-11-08

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee