FR1562503A - - Google Patents

Info

Publication number
FR1562503A
FR1562503A FR1562503DA FR1562503A FR 1562503 A FR1562503 A FR 1562503A FR 1562503D A FR1562503D A FR 1562503DA FR 1562503 A FR1562503 A FR 1562503A
Authority
FR
France
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)
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 filed Critical
Application granted granted Critical
Publication of FR1562503A publication Critical patent/FR1562503A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/02—Machines which completely free the mineral from the seam solely by slitting
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00—Methods or devices for placing filling-up materials in underground workings
    • E21F15/02—Supporting means, e.g. shuttering, for filling-up materials

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)
  • Basic Packing Technique (AREA)
  • Binders And Loading Units For Sheaves (AREA)
  • Catching Or Destruction (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Crushing And Grinding (AREA)
FR1562503D 1967-05-17 1968-04-23 Expired FR1562503A (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH62755A DE1273459B (de) 1967-05-17 1967-05-17 Vorrichtung zum mechanischen Abbau in Floezen steiler und halbsteiler Lagerung

Publications (1)

Publication Number Publication Date
FR1562503A true FR1562503A (cs) 1969-04-04

Family

ID=7162008

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1562503D Expired FR1562503A (cs) 1967-05-17 1968-04-23

Country Status (4)

Country Link
BE (1) BE714165A (cs)
DE (1) DE1273459B (cs)
ES (1) ES353553A2 (cs)
FR (1) FR1562503A (cs)

Also Published As

Publication number Publication date
DE1273459B (de) 1968-07-25
BE714165A (cs) 1968-09-16
ES353553A2 (es) 1969-10-01

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Legal Events

Date Code Title Description
ST Notification of lapse