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BE603189A - Reversible articulated bonnet for pruning, in mining operations - Google Patents

Reversible articulated bonnet for pruning, in mining operations

Info

Publication number
BE603189A
BE603189A BE603189A BE603189A BE603189A BE 603189 A BE603189 A BE 603189A BE 603189 A BE603189 A BE 603189A BE 603189 A BE603189 A BE 603189A BE 603189 A BE603189 A BE 603189A
Authority
BE
Belgium
Prior art keywords
pruning
bonnet
mining operations
reversible
articulated
Prior art date
Application number
BE603189A
Other languages
French (fr)
Original Assignee
Thyssen Ind G M B H
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 Thyssen Ind G M B H filed Critical Thyssen Ind G M B H
Publication of BE603189A publication Critical patent/BE603189A/en

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)
  • Piles And Underground Anchors (AREA)
  • Pivots And Pivotal Connections (AREA)
BE603189A 1960-07-07 1961-04-28 Reversible articulated bonnet for pruning, in mining operations BE603189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET18638A DE1118720B (en) 1960-07-07 1960-07-07 Reversible joint cap for longwall construction in mining operations

Publications (1)

Publication Number Publication Date
BE603189A true BE603189A (en) 1961-08-16

Family

ID=7549017

Family Applications (1)

Application Number Title Priority Date Filing Date
BE603189A BE603189A (en) 1960-07-07 1961-04-28 Reversible articulated bonnet for pruning, in mining operations

Country Status (4)

Country Link
BE (1) BE603189A (en)
DE (1) DE1118720B (en)
GB (1) GB979801A (en)
NL (1) NL264085A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL294003A (en) 1962-06-15

Also Published As

Publication number Publication date
DE1118720B (en) 1961-12-07
GB979801A (en) 1965-01-06
NL264085A (en)

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