PL87719B1 - - Google Patents

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Publication number
PL87719B1
PL87719B1 PL1973165332A PL16533273A PL87719B1 PL 87719 B1 PL87719 B1 PL 87719B1 PL 1973165332 A PL1973165332 A PL 1973165332A PL 16533273 A PL16533273 A PL 16533273A PL 87719 B1 PL87719 B1 PL 87719B1
Authority
PL
Poland
Prior art keywords
sliding unit
plate
unit according
stand
joint
Prior art date
Application number
PL1973165332A
Other languages
English (en)
Polish (pl)
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
Publication of PL87719B1 publication Critical patent/PL87719B1/pl

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
    • E21D23/0454—Trailing plates; Coal face or goaf side sprags
    • 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
    • E21D23/04—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
    • E21D23/0427—Shield operating devices; Hinges therefor

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)
  • Lining And Supports For Tunnels (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Tents Or Canopies (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
PL1973165332A 1972-09-22 1973-09-20 PL87719B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2246745A DE2246745C2 (de) 1972-09-22 1972-09-22 Rückbare Schildausbaueinheit

Publications (1)

Publication Number Publication Date
PL87719B1 true PL87719B1 (fr) 1976-07-31

Family

ID=5857174

Family Applications (1)

Application Number Title Priority Date Filing Date
PL1973165332A PL87719B1 (fr) 1972-09-22 1973-09-20

Country Status (6)

Country Link
US (1) US3874178A (fr)
BE (1) BE804720A (fr)
DE (1) DE2246745C2 (fr)
FR (1) FR2200436B3 (fr)
GB (1) GB1437193A (fr)
PL (1) PL87719B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2413538C2 (de) * 1974-03-21 1978-05-24 Bochumer Eisenhuette Heintzmann & Co, 4630 Bochum Schildausbaugestell
DE2601341A1 (de) * 1976-01-15 1977-07-28 Kloeckner Werke Ag Ausbaueinheit fuer untertaegige strebbetriebe
DE2605068C3 (de) * 1976-02-10 1978-12-14 Thyssen Industrie Ag, 4300 Essen Kappen- und Bruchschildkonstruktion für ein Schildausbaugestell
DE2843857C2 (de) * 1978-10-07 1986-06-19 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Schildausbaugestell
DE3630579C2 (de) * 1986-09-09 1994-07-14 Westfalia Becorit Ind Tech Schildausbaugestell mit zwischen Liegendschwelle und Bruchschildlenkern lösbar angeordnetem Aufsatzstück
CN103590847A (zh) * 2013-10-31 2014-02-19 山东新煤机械装备股份有限公司 单立柱双推移液压支架及推移机构与推移方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2159535C3 (de) * 1971-12-01 1979-01-04 Thyssen Industrie Ag, 4300 Essen Schildausbaugestell

Also Published As

Publication number Publication date
DE2246745C2 (de) 1974-03-07
DE2246745B1 (de) 1973-08-09
FR2200436A1 (fr) 1974-04-19
US3874178A (en) 1975-04-01
FR2200436B3 (fr) 1976-08-20
GB1437193A (en) 1976-05-26
BE804720A (fr) 1974-01-02

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