GB1251096A - - Google Patents

Info

Publication number
GB1251096A
GB1251096A GB1251096DA GB1251096A GB 1251096 A GB1251096 A GB 1251096A GB 1251096D A GB1251096D A GB 1251096DA GB 1251096 A GB1251096 A GB 1251096A
Authority
GB
United Kingdom
Prior art keywords
conveyor
support
piston
cylinder
see figs
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)
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 GB1251096A publication Critical patent/GB1251096A/en
Expired legal-status Critical Current

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
    • E21D23/08—Advancing mechanisms
    • E21D23/081—Advancing mechanisms forming parts of the roof supports
    • E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine

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)
  • Framework For Endless Conveyors (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Manipulator (AREA)
  • Reciprocating Conveyors (AREA)
GB1251096D 1969-01-16 1969-10-30 Expired GB1251096A (pl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691902042 DE1902042A1 (de) 1969-01-16 1969-01-16 Wandernder Strebausbau fuer untertaegige Grubenbetriebe

Publications (1)

Publication Number Publication Date
GB1251096A true GB1251096A (pl) 1971-10-27

Family

ID=5722571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1251096D Expired GB1251096A (pl) 1969-01-16 1969-10-30

Country Status (4)

Country Link
JP (1) JPS4932162B1 (pl)
DE (1) DE1902042A1 (pl)
GB (1) GB1251096A (pl)
PL (1) PL80383B1 (pl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1534382B1 (de) * 1965-01-15 1970-07-23 Schraubenbach Dr Rer Hort Paul Kunstformstein,insbesondere Betonformstein
DE2234452C2 (de) * 1972-07-13 1984-08-09 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Schreitendes Schildausbaugestell
DE2330764C2 (de) * 1973-06-16 1989-08-31 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Einrichtung zur Niveausteuerung einer Gewinnungsmaschine, insbesondere eines Hobels
GB1472552A (en) * 1974-11-15 1977-05-04 Gullick Dobson Ltd Mine roof supports

Also Published As

Publication number Publication date
PL80383B1 (pl) 1975-08-30
JPS4932162B1 (pl) 1974-08-28
DE1902042A1 (de) 1970-08-20

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees