DE968919C - Metallkappenverbindung im Grubenbetrieb - Google Patents

Metallkappenverbindung im Grubenbetrieb

Info

Publication number
DE968919C
DE968919C DER5777A DER0005777A DE968919C DE 968919 C DE968919 C DE 968919C DE R5777 A DER5777 A DE R5777A DE R0005777 A DER0005777 A DE R0005777A DE 968919 C DE968919 C DE 968919C
Authority
DE
Germany
Prior art keywords
cap
ball
socket part
mine
support surfaces
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
DER5777A
Other languages
German (de)
English (en)
Inventor
Albert Voit
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.)
Saarbergwerke AG
Original Assignee
Saarbergwerke AG
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 Saarbergwerke AG filed Critical Saarbergwerke AG
Application granted granted Critical
Publication of DE968919C publication Critical patent/DE968919C/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces
    • B28B7/0067—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces with polished or glossy moulding surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (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)
  • Emergency Lowering Means (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
DER5777A 1956-06-13 1951-04-19 Metallkappenverbindung im Grubenbetrieb Expired DE968919C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR831565X 1956-06-13

Publications (1)

Publication Number Publication Date
DE968919C true DE968919C (de) 1958-04-10

Family

ID=9292721

Family Applications (2)

Application Number Title Priority Date Filing Date
DER5777A Expired DE968919C (de) 1956-06-13 1951-04-19 Metallkappenverbindung im Grubenbetrieb
DES53861A Pending DE1045944B (de) 1956-06-13 1957-06-12 Kugelgelenkverbindung fuer Kappen aus Metall im Grubenbetrieb

Family Applications After (1)

Application Number Title Priority Date Filing Date
DES53861A Pending DE1045944B (de) 1956-06-13 1957-06-12 Kugelgelenkverbindung fuer Kappen aus Metall im Grubenbetrieb

Country Status (5)

Country Link
BE (1) BE499866A (fr)
DE (2) DE968919C (fr)
FR (3) FR1023255A (fr)
GB (2) GB704698A (fr)
NL (1) NL88048C (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741949C (de) * 1942-04-15 1943-11-19 Alois Vanwersch Als Gelenk ausgebildete Schaleneisenverbindung fuer den Grubenausbau
DE806133C (de) * 1948-10-02 1951-06-11 Johannes Ecker Gelenkverbindung fuer Stahlkappen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741949C (de) * 1942-04-15 1943-11-19 Alois Vanwersch Als Gelenk ausgebildete Schaleneisenverbindung fuer den Grubenausbau
DE806133C (de) * 1948-10-02 1951-06-11 Johannes Ecker Gelenkverbindung fuer Stahlkappen

Also Published As

Publication number Publication date
BE499866A (fr)
DE1045944B (de) 1958-12-11
FR69607E (fr) 1958-11-10
GB831565A (en) 1960-03-30
FR1023255A (fr) 1953-03-16
FR1028255A (fr) 1953-05-20
NL88048C (fr)
GB704698A (en) 1954-02-24

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