FR1057387A - Pre-formwork device for formwork caps - Google Patents

Pre-formwork device for formwork caps

Info

Publication number
FR1057387A
FR1057387A FR1057387DA FR1057387A FR 1057387 A FR1057387 A FR 1057387A FR 1057387D A FR1057387D A FR 1057387DA FR 1057387 A FR1057387 A FR 1057387A
Authority
FR
France
Prior art keywords
formwork
caps
formwork device
formwork caps
Prior art date
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Alfred Buschmann
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
Application granted granted Critical
Publication of FR1057387A publication Critical patent/FR1057387A/en
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
    • E21D17/082—Cap joints for obtaining a coal-face free of pit-props of sliding 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)
FR1057387D 1951-08-30 1952-05-27 Pre-formwork device for formwork caps Expired FR1057387A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1057387X 1951-08-30

Publications (1)

Publication Number Publication Date
FR1057387A true FR1057387A (en) 1954-03-08

Family

ID=7718108

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1057387D Expired FR1057387A (en) 1951-08-30 1952-05-27 Pre-formwork device for formwork caps

Country Status (1)

Country Link
FR (1) FR1057387A (en)

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