FR928575A - Support with metal beams - Google Patents

Support with metal beams

Info

Publication number
FR928575A
FR928575A FR928575DA FR928575A FR 928575 A FR928575 A FR 928575A FR 928575D A FR928575D A FR 928575DA FR 928575 A FR928575 A FR 928575A
Authority
FR
France
Prior art keywords
support
metal beams
beams
metal
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CARBO STREBBAU GES DR Inc V HI
Original Assignee
CARBO STREBBAU GES DR Inc V HI
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 by CARBO STREBBAU GES DR Inc V HI filed Critical CARBO STREBBAU GES DR Inc V HI
Application granted granted Critical
Publication of FR928575A publication Critical patent/FR928575A/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
    • E21D17/04—Cantilever extension or similar protecting devices for use in longwall working
    • 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
    • E21D15/54—Details of the ends of props
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/01—Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section
    • 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
    • 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)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
FR928575D 1946-06-03 1946-06-03 Support with metal beams Expired FR928575A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR928575T 1946-06-03

Publications (1)

Publication Number Publication Date
FR928575A true FR928575A (en) 1947-12-02

Family

ID=9441892

Family Applications (1)

Application Number Title Priority Date Filing Date
FR928575D Expired FR928575A (en) 1946-06-03 1946-06-03 Support with metal beams

Country Status (1)

Country Link
FR (1) FR928575A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE864385C (en) * 1949-08-27 1953-01-26 Alexander Schubert Articulated cap for supporting the hanging wall when building longwall

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE864385C (en) * 1949-08-27 1953-01-26 Alexander Schubert Articulated cap for supporting the hanging wall when building longwall

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