FR1028255A - Rallonge métallique de mine - Google Patents

Rallonge métallique de mine

Info

Publication number
FR1028255A
FR1028255A FR1028255DA FR1028255A FR 1028255 A FR1028255 A FR 1028255A FR 1028255D A FR1028255D A FR 1028255DA FR 1028255 A FR1028255 A FR 1028255A
Authority
FR
France
Prior art keywords
metal mine
extension
mine extension
metal
mine
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
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.)
REGIE DES MINES de la SARRE
Original Assignee
REGIE DES MINES de la SARRE
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 REGIE DES MINES de la SARRE filed Critical REGIE DES MINES de la SARRE
Application granted granted Critical
Publication of FR1028255A publication Critical patent/FR1028255A/fr
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)
FR1028255D 1956-06-13 1950-11-22 Rallonge métallique de mine Expired FR1028255A (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR1028255A true FR1028255A (fr) 1953-05-20

Family

ID=9292721

Family Applications (3)

Application Number Title Priority Date Filing Date
FR1023255D Expired FR1023255A (fr) 1956-06-13 1950-08-11 Procédé de moulage de plaques de béton
FR1028255D Expired FR1028255A (fr) 1956-06-13 1950-11-22 Rallonge métallique de mine
FR69607D Expired FR69607E (fr) 1956-06-13 1956-06-13 Rallonge métallique de mine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR1023255D Expired FR1023255A (fr) 1956-06-13 1950-08-11 Procédé de moulage de plaques de béton

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR69607D Expired FR69607E (fr) 1956-06-13 1956-06-13 Rallonge métallique de mine

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)

Family Cites Families (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
GB831565A (en) 1960-03-30
FR69607E (fr) 1958-11-10
FR1023255A (fr) 1953-03-16
GB704698A (en) 1954-02-24
NL88048C (fr)
BE499866A (fr)
DE1045944B (de) 1958-12-11
DE968919C (de) 1958-04-10

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