GB1439546A - Mining shield supporter - Google Patents

Mining shield supporter

Info

Publication number
GB1439546A
GB1439546A GB5456873A GB5456873A GB1439546A GB 1439546 A GB1439546 A GB 1439546A GB 5456873 A GB5456873 A GB 5456873A GB 5456873 A GB5456873 A GB 5456873A GB 1439546 A GB1439546 A GB 1439546A
Authority
GB
United Kingdom
Prior art keywords
props
mining
support
jacks
central
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
GB5456873A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiheiyo Coal Mining Co Ltd
Original Assignee
Taiheiyo Coal Mining Co Ltd
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 by Taiheiyo Coal Mining Co Ltd filed Critical Taiheiyo Coal Mining Co Ltd
Publication of GB1439546A publication Critical patent/GB1439546A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D19/00—Provisional protective covers for working space
    • E21D19/04—Provisional protective covers for working space for use in drifting galleries

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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Toys (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

1439546 Mining shields TAIHEIYO COAL MINING CO Ltd 23 Nov 1973 [18 Dec 1972] 54568/73 Heading E1F A mining shield, support 1 comprises a central arcuate member 2, lateral arcuate members 3, 3' pivotally connected to opposite ends of the central member, a sliding block 5, 5' slidably mounted within each lateral member, jacks 11, 11' pivotally connected between the central member and the blocks, and extensible props 7, 7' pivotally mounted on the lower ends of the sliding blocks. The support is collapsed for transportation (Fig. 2 not shown), by contracting the jacks and extensible props. Leaf springs 39, 39' act between the sliding blocks and props 7, 7' to bias the props laterally outwardly. A wheeled carrier 40 for the support forms the subject matter of Specification 1439545.
GB5456873A 1972-12-18 1973-11-23 Mining shield supporter Expired GB1439546A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47126267A JPS4983228A (en) 1972-12-18 1972-12-18

Publications (1)

Publication Number Publication Date
GB1439546A true GB1439546A (en) 1976-06-16

Family

ID=14930943

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5456873A Expired GB1439546A (en) 1972-12-18 1973-11-23 Mining shield supporter

Country Status (5)

Country Link
JP (1) JPS4983228A (en)
AU (1) AU463641B2 (en)
CA (1) CA985056A (en)
DE (1) DE2361235B2 (en)
GB (1) GB1439546A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014047721A1 (en) * 2012-09-27 2014-04-03 Centre For Excellence In Mining Innovation Drill and blast method and apparatus for the same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461095A1 (en) * 1979-07-06 1981-01-30 Charbonnages De France SLIDING CONTINUOUS SUPPORT PORTION WITH LARGE PASSENGER OPENING AND SLIDING HAT
JPH0781518B2 (en) * 1988-06-22 1995-08-30 戸田建設株式会社 Tunnel lining method and device
JPH089280Y2 (en) * 1992-01-09 1996-03-13 株式会社新菱製作所 Segment transfer device
DE102007035848C5 (en) 2007-07-31 2018-11-15 Marco Systemanalyse Und Entwicklung Gmbh Removal screen and method for controlling or determining the position of a removal screen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014047721A1 (en) * 2012-09-27 2014-04-03 Centre For Excellence In Mining Innovation Drill and blast method and apparatus for the same
US10053984B2 (en) 2012-09-27 2018-08-21 Centre For Excellence In Mining Innovation Drill and blast method and apparatus for the same
US10662771B2 (en) 2012-09-27 2020-05-26 Centre For Excellence In Mining Innovation Drill and blast method and apparatus for the same

Also Published As

Publication number Publication date
DE2361235B2 (en) 1976-01-08
AU6365073A (en) 1975-06-19
AU463641B2 (en) 1975-07-31
CA985056A (en) 1976-03-09
JPS4983228A (en) 1974-08-10
DE2361235A1 (en) 1974-07-04

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Legal Events

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