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NL72525C - - Google Patents

Info

Publication number
NL72525C
NL72525C NL72525DA NL72525C NL 72525 C NL72525 C NL 72525C NL 72525D A NL72525D A NL 72525DA NL 72525 C NL72525 C NL 72525C
Authority
NL
Netherlands
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 NL72525C publication Critical patent/NL72525C/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)
  • Connection Of Plates (AREA)
  • Grates (AREA)
  • Pivots And Pivotal Connections (AREA)
NL72525D 1949-01-11 NL72525C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB76549A GB706762A (en) 1949-01-11 1949-01-11 Improvements in or relating to connecting means for caps used in mining, more particularly for pivot-jointed steel caps

Publications (1)

Publication Number Publication Date
NL72525C true NL72525C (en)

Family

ID=9710135

Family Applications (1)

Application Number Title Priority Date Filing Date
NL72525D NL72525C (en) 1949-01-11

Country Status (4)

Country Link
BE (1) BE485770A (en)
FR (1) FR955232A (en)
GB (1) GB706762A (en)
NL (1) NL72525C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5380117A (en) * 1989-06-16 1995-01-10 Buschulte; Joachim Apparatus for the detachable coupling of gripping devices or corresponding tools on robot arms

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122915B (en) * 1952-06-16 1962-02-01 Gerlach Karl Swivel cap for pit construction
DE938366C (en) * 1952-06-18 1956-01-26 Ernst Tosch Articulated cap for rigid pre-connecting
CN114701596A (en) * 2022-04-06 2022-07-05 奕江山环境科技(北京)有限公司 Floating island flexible connecting piece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5380117A (en) * 1989-06-16 1995-01-10 Buschulte; Joachim Apparatus for the detachable coupling of gripping devices or corresponding tools on robot arms

Also Published As

Publication number Publication date
GB706762A (en) 1954-04-07
FR955232A (en) 1950-01-11
BE485770A (en)

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