GB1153573A - Improvements in or relating to Mine Roof Support systems - Google Patents

Improvements in or relating to Mine Roof Support systems

Info

Publication number
GB1153573A
GB1153573A GB3046665A GB3046665A GB1153573A GB 1153573 A GB1153573 A GB 1153573A GB 3046665 A GB3046665 A GB 3046665A GB 3046665 A GB3046665 A GB 3046665A GB 1153573 A GB1153573 A GB 1153573A
Authority
GB
United Kingdom
Prior art keywords
support
conveyor
point
supports
mine roof
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
GB3046665A
Inventor
Peter Henry Martyn
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.)
Dobson Ltd W E & F
WE&F Dobson Ltd
Original Assignee
Dobson Ltd W E & F
WE&F Dobson 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 Dobson Ltd W E & F, WE&F Dobson Ltd filed Critical Dobson Ltd W E & F
Priority to GB3046665A priority Critical patent/GB1153573A/en
Publication of GB1153573A publication Critical patent/GB1153573A/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
    • E21D23/04—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
    • E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

1,153,573. Advancing mine roof supports. W. E. & F. DOBSON Ltd. 16 Aug., 1966 [17 July, 1965], No. 30466/65. Heading E1P. In a mine roof support system for use in an inclined seam and comprising a series of hydraulic roof supports 2, 3, 4, 5 .. each retractable and advanceable in turn towards the working face by respective hydraulic jacks 6, 7, 8, 9.. connected to a conveyor 1, each successive support is interconnected by a single chain or rope 10, 11 12 which corrects the downwards drift of the supports along the inclined seam during their advance. Each chain or rope is connected at one end to a point P on its associated upper support and at the other end to a point P1 on its associated lower support, the point P1 being forward of the point P when the pair of supports are side by side. A hydraulic jack may be provided between the extreme upper support and the adjacent lower support of the series to enable any downward drift of the extreme upper support to be corrected. Each of the jacks is connected to the conveyor by a link 13, 14, 15 or 16 having a wedge-shaped outer end arranged to co-act with abutments on its support to assist in aligning when the support is fully advanced. Each link may be connected to the conveyor through a runner in a guide carried by the conveyor Fig. 6 (not shown). The runners are connected by links running in the guide and longitudinally adjustable by tensioning a cable connected thereto.
GB3046665A 1965-07-17 1965-09-17 Improvements in or relating to Mine Roof Support systems Expired GB1153573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3046665A GB1153573A (en) 1965-07-17 1965-09-17 Improvements in or relating to Mine Roof Support systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3046665A GB1153573A (en) 1965-07-17 1965-09-17 Improvements in or relating to Mine Roof Support systems

Publications (1)

Publication Number Publication Date
GB1153573A true GB1153573A (en) 1969-05-29

Family

ID=10308129

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3046665A Expired GB1153573A (en) 1965-07-17 1965-09-17 Improvements in or relating to Mine Roof Support systems

Country Status (1)

Country Link
GB (1) GB1153573A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2415719A1 (en) * 1978-01-28 1979-08-24 Gewerk Eisenhuette Westfalia Mine support system for sloping seams - has arm on height adjustable beam on face conveyor to swing adjacent support sideways

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2415719A1 (en) * 1978-01-28 1979-08-24 Gewerk Eisenhuette Westfalia Mine support system for sloping seams - has arm on height adjustable beam on face conveyor to swing adjacent support sideways

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