AU1304770A - Improvements in or relating to mine roof supports - Google Patents

Improvements in or relating to mine roof supports

Info

Publication number
AU1304770A
AU1304770A AU13047/70A AU1304770A AU1304770A AU 1304770 A AU1304770 A AU 1304770A AU 13047/70 A AU13047/70 A AU 13047/70A AU 1304770 A AU1304770 A AU 1304770A AU 1304770 A AU1304770 A AU 1304770A
Authority
AU
Australia
Prior art keywords
relating
mine roof
roof supports
supports
mine
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
AU13047/70A
Inventor
Evan Whitaker Michael
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.)
Gullick Dobson Ltd
Original Assignee
Gullick 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 Gullick Dobson Ltd filed Critical Gullick Dobson Ltd
Publication of AU1304770A publication Critical patent/AU1304770A/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
    • 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
    • E21D23/0418—Positioning devices and stabilizing means for the props

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)
  • Attitude Control For Articles On Conveyors (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
AU13047/70A 1969-04-08 1970-03-25 Improvements in or relating to mine roof supports Expired AU1304770A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1784969 1969-04-08
GBGB17849 1969-04-08

Publications (1)

Publication Number Publication Date
AU1304770A true AU1304770A (en) 1970-03-25

Family

ID=10102300

Family Applications (1)

Application Number Title Priority Date Filing Date
AU13047/70A Expired AU1304770A (en) 1969-04-08 1970-03-25 Improvements in or relating to mine roof supports

Country Status (5)

Country Link
US (1) US3646768A (en)
AU (1) AU1304770A (en)
DE (1) DE2014372C3 (en)
FR (1) FR2043018A5 (en)
GB (1) GB1295075A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030308A (en) * 1976-05-21 1977-06-21 Fletcher Sutcliffe Wild Limited Mine roof supports
GB1546630A (en) * 1976-12-29 1979-05-23 Fletcher Sutcliffe Wild Ltd Mine roof supports
US4664563A (en) * 1984-09-21 1987-05-12 Basf Corporation Rigid polyurethane foams with constant or slightly decreasing strain with an increasing stress in compression

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1001412A (en) * 1960-09-15 1965-08-18 Dowty Mining Equipment Ltd Roof supports suitable for use in mines
DE1160389B (en) * 1961-08-21 1964-01-02 Mannesmann Ag Setting device for pit stamp
GB1038952A (en) * 1961-11-21 1966-08-17 Dobson Ltd W E & F Improvements in or relating to mine roof supports
GB1091601A (en) * 1964-01-24 1967-11-22 Dowty Mining Equipment Ltd Roof supports suitable for use in a mine
GB1107379A (en) * 1964-08-11 1968-03-27 Gullick Ltd Improvements in or relating to pivotally supported members particularly of mine roof supports
GB1115763A (en) * 1964-12-23 1968-05-29 Gullick Ltd Improvements in or relating to mine roof and like supports
DE1533762A1 (en) * 1967-06-07 1970-01-22 Rheinstahi Wanheim Gmbh Mechanically retractable extension element, in particular extension frame

Also Published As

Publication number Publication date
FR2043018A5 (en) 1971-02-12
GB1295075A (en) 1972-11-01
US3646768A (en) 1972-03-07
DE2014372A1 (en) 1970-10-15
DE2014372C3 (en) 1973-01-04

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