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GB1227317A - - Google Patents

Info

Publication number
GB1227317A
GB1227317A GB1227317DA GB1227317A GB 1227317 A GB1227317 A GB 1227317A GB 1227317D A GB1227317D A GB 1227317DA GB 1227317 A GB1227317 A GB 1227317A
Authority
GB
United Kingdom
Prior art keywords
interconnected
arches
piston
mine
advancing
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
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 GB1227317A publication Critical patent/GB1227317A/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
    • E21D23/0086—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor in galleries
    • E21D23/0095—Temporary supports at the driving front

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)
  • Tents Or Canopies (AREA)

Abstract

1,227,317. Advancing mine roof supports. GREENSIDE MACHINE CO. Ltd. 18 July, 1968 [7 June, 1967], No. 26269/67. Heading E1P. In an advancing mine roof support assembly comprising a pair of mine arches 6, 8 interconnected by plates 11, 13 welded thereto and a like arrangement of interconnected arches 7, 9 the two pairs of arches are interconnected by rams 17 for selective advance. Each arch comprises a piston-and-cylinder unit mounted in a column having a foot plate 10, the piston being pivotally connected to a strut having a shoulder piece for receiving an arched roof bar 28, see also Fig. 1 (not shown).
GB1227317D 1967-06-07 1967-06-07 Expired GB1227317A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2626967 1967-06-07

Publications (1)

Publication Number Publication Date
GB1227317A true GB1227317A (en) 1971-04-07

Family

ID=10240996

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1227317D Expired GB1227317A (en) 1967-06-07 1967-06-07

Country Status (1)

Country Link
GB (1) GB1227317A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091628A (en) * 1976-09-27 1978-05-30 Jay Hilary Kelley Prestressed elastic arched mine roof support
FR2415720A1 (en) * 1978-01-27 1979-08-24 Stephanois Constr Meca Mine gallery roof support - has three relatively movable portal frames, with hydraulically-operated shoes supportable against caps
US4173421A (en) * 1976-10-15 1979-11-06 Gewerkschaft Eisenhutte Westfalia Shield apparatus for use in tunnelling or mining
US5444948A (en) * 1994-02-09 1995-08-29 Trapp; William B. Adjustable arch support
CN103711509A (en) * 2014-01-10 2014-04-09 李明 Self-moving arched shield support type lapping and shed erecting all-in-one machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091628A (en) * 1976-09-27 1978-05-30 Jay Hilary Kelley Prestressed elastic arched mine roof support
US4173421A (en) * 1976-10-15 1979-11-06 Gewerkschaft Eisenhutte Westfalia Shield apparatus for use in tunnelling or mining
FR2415720A1 (en) * 1978-01-27 1979-08-24 Stephanois Constr Meca Mine gallery roof support - has three relatively movable portal frames, with hydraulically-operated shoes supportable against caps
US5444948A (en) * 1994-02-09 1995-08-29 Trapp; William B. Adjustable arch support
CN103711509A (en) * 2014-01-10 2014-04-09 李明 Self-moving arched shield support type lapping and shed erecting all-in-one machine

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee