GB1358541A - Mine roof supports - Google Patents

Mine roof supports

Info

Publication number
GB1358541A
GB1358541A GB4692970A GB4692970A GB1358541A GB 1358541 A GB1358541 A GB 1358541A GB 4692970 A GB4692970 A GB 4692970A GB 4692970 A GB4692970 A GB 4692970A GB 1358541 A GB1358541 A GB 1358541A
Authority
GB
United Kingdom
Prior art keywords
lever
mine roof
jack
base
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
GB4692970A
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.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment 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 Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Priority to GB4692970A priority Critical patent/GB1358541A/en
Priority to DE19712147803 priority patent/DE2147803A1/de
Publication of GB1358541A publication Critical patent/GB1358541A/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

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)
  • Lining And Supports For Tunnels (AREA)
  • Tents Or Canopies (AREA)

Abstract

1358541 Mine roof support assemblies DOWTY MINING EQUIPMENT Ltd 10 Sept 1971 [2 Oct 1970] 46929/70 Heading E1P In a mine roof support assembly comprising a base 11 with a lever 14 pivotally mounted thereon and adjustable thereabout by a pair of jacks 15, the lever is provided with a jack 16, 17 and a roof canopy 19 is pivotally connected to the member 16 by a pivot 18 and a jack 21 for tilting same into contact with the mine roof; on advancing jack 23 also being provided, if desired. In a modification, see Fig. 3 (not shown), the roof canopy is pivotally connected to the base by a lever of fixed length, is pivoted about the lever by a slightly modified jacking arrangement and has a shield pivotally mounted thereon to rest against the lever.
GB4692970A 1970-10-02 1970-10-02 Mine roof supports Expired GB1358541A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4692970A GB1358541A (en) 1970-10-02 1970-10-02 Mine roof supports
DE19712147803 DE2147803A1 (en) 1970-10-02 1971-09-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4692970A GB1358541A (en) 1970-10-02 1970-10-02 Mine roof supports

Publications (1)

Publication Number Publication Date
GB1358541A true GB1358541A (en) 1974-07-03

Family

ID=10443109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4692970A Expired GB1358541A (en) 1970-10-02 1970-10-02 Mine roof supports

Country Status (2)

Country Link
DE (1) DE2147803A1 (en)
GB (1) GB1358541A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073149A (en) * 1974-12-18 1978-02-14 Gewerkschaft Eisenhutte Westfalia Mine roof support assemblies
US4094155A (en) * 1976-02-03 1978-06-13 Bochumer Eisenhutte Heintzmann Gmbh & Co. Mine roof support
US4140430A (en) * 1977-05-05 1979-02-20 Bochumer Eisenhutte Heintzmann Gmbh & Co Walking mine roof support
GB2191236A (en) * 1986-06-04 1987-12-09 Gullick Dobson Ltd Movable hydraulic jacks on mine roof support

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2320960C3 (en) * 1973-04-26 1981-08-06 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Shield support frame
DE2447429A1 (en) * 1974-07-02 1976-04-08 Johannes Winkler Mine shield support with roofbar - roofbar forepoled off telescopic powered beam with joint on waste shield
DE2644649C3 (en) * 1976-10-02 1986-11-13 Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen Shield support frame

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073149A (en) * 1974-12-18 1978-02-14 Gewerkschaft Eisenhutte Westfalia Mine roof support assemblies
US4094155A (en) * 1976-02-03 1978-06-13 Bochumer Eisenhutte Heintzmann Gmbh & Co. Mine roof support
US4140430A (en) * 1977-05-05 1979-02-20 Bochumer Eisenhutte Heintzmann Gmbh & Co Walking mine roof support
GB2191236A (en) * 1986-06-04 1987-12-09 Gullick Dobson Ltd Movable hydraulic jacks on mine roof support
US4797023A (en) * 1986-06-04 1989-01-10 Gullick Dobson Limited Mine roof supports
GB2191236B (en) * 1986-06-04 1990-04-04 Gullick Dobson Ltd Mine roof supports

Also Published As

Publication number Publication date
DE2147803A1 (en) 1972-06-08

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Legal Events

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