NL279454A - - Google Patents

Info

Publication number
NL279454A
NL279454A NL279454DA NL279454A NL 279454 A NL279454 A NL 279454A NL 279454D A NL279454D A NL 279454DA NL 279454 A NL279454 A NL 279454A
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 NL279454A publication Critical patent/NL279454A/xx

Links

Classifications

    • 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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • 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
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • E21D23/0039—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by a strut or by a row of struts parallel to the working face
    • 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
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
    • 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
    • E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
    • 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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0454—Trailing plates; Coal face or goaf side sprags

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)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
NL279454D 1961-06-09 NL279454A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0042809 1961-06-09

Publications (1)

Publication Number Publication Date
NL279454A true NL279454A (de)

Family

ID=7154986

Family Applications (1)

Application Number Title Priority Date Filing Date
NL279454D NL279454A (de) 1961-06-09

Country Status (3)

Country Link
DE (1) DE1608512B1 (de)
GB (1) GB1004110A (de)
NL (1) NL279454A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1236590A (en) * 1968-10-01 1971-06-23 Gullick Dobson Ltd Improvements in or relating to mine roof supports
DE2164365C3 (de) * 1971-12-23 1984-03-15 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Rückbare Schildausbaueinheit
DE2407227B1 (de) * 1974-02-15 1975-06-05 Bochumer Eisen Heintzmann Hangendkappen-Anordnung fuer Schildausbaugestelle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970540C (de) * 1949-03-10 1958-10-02 Dipl Berging Curt Boie Rahmen fuer schreitenden Ausbau im Braunkohlen-Strebbruchbau
DE935785C (de) * 1953-09-01 1955-12-07 Carbo Strebbau Ges Dr Ing Von Verfahren und Vorrichtung zum Rauben von unter Versatzdruck stehenden Ausbauschilden beim Abbau von Kohlefloezen
DE1089707B (de) * 1954-02-12 1960-09-29 Hans Joachim Von Hippel Dr Ing Verfahren und Vorrichtung zum Ruecken eines Strebausbaues

Also Published As

Publication number Publication date
DE1608512B1 (de) 1969-11-20
GB1004110A (en) 1965-09-08

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