GB2196371B - Mine roof supports - Google Patents

Mine roof supports

Info

Publication number
GB2196371B
GB2196371B GB8624745A GB8624745A GB2196371B GB 2196371 B GB2196371 B GB 2196371B GB 8624745 A GB8624745 A GB 8624745A GB 8624745 A GB8624745 A GB 8624745A GB 2196371 B GB2196371 B GB 2196371B
Authority
GB
United Kingdom
Prior art keywords
mine roof
roof supports
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 - Fee Related
Application number
GB8624745A
Other versions
GB2196371A (en
GB8624745D0 (en
Inventor
Roy Park
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
Priority to GB8624745A priority Critical patent/GB2196371B/en
Publication of GB8624745D0 publication Critical patent/GB8624745D0/en
Priority to ZA877637A priority patent/ZA877637B/en
Priority to DE19873734642 priority patent/DE3734642A1/en
Publication of GB2196371A publication Critical patent/GB2196371A/en
Application granted granted Critical
Publication of GB2196371B publication Critical patent/GB2196371B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • E21D23/063—Retractable cantilever extensions therefor

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)
  • Absorbent Articles And Supports Therefor (AREA)
GB8624745A 1986-10-15 1986-10-15 Mine roof supports Expired - Fee Related GB2196371B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB8624745A GB2196371B (en) 1986-10-15 1986-10-15 Mine roof supports
ZA877637A ZA877637B (en) 1986-10-15 1987-10-12 Mine roof supports
DE19873734642 DE3734642A1 (en) 1986-10-15 1987-10-13 PITCH ROOF SUPPORTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8624745A GB2196371B (en) 1986-10-15 1986-10-15 Mine roof supports

Publications (3)

Publication Number Publication Date
GB8624745D0 GB8624745D0 (en) 1986-11-19
GB2196371A GB2196371A (en) 1988-04-27
GB2196371B true GB2196371B (en) 1990-05-09

Family

ID=10605805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8624745A Expired - Fee Related GB2196371B (en) 1986-10-15 1986-10-15 Mine roof supports

Country Status (3)

Country Link
DE (1) DE3734642A1 (en)
GB (1) GB2196371B (en)
ZA (1) ZA877637B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220022B (en) * 1988-06-24 1992-06-10 Dowty Hucknall Limited Mine roof support
DE3833842C1 (en) * 1988-10-05 1989-08-31 Bochumer Eisenhuette Heintzmann Gmbh & Co Kg, 4630 Bochum, De Powered support assembly
GB9004181D0 (en) * 1990-02-23 1990-04-18 Gullick Dobson Ltd Mine roof supports and components therefor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB981568A (en) * 1961-07-22 1965-01-27 Mines Domaniales De Potasse Improvements in or relating to mine roof supporting structure
GB1001562A (en) * 1960-11-21 1965-08-18 Coal Industry Patents Ltd Fluid-pressure loading attachment for mine roof bars and mine roof support assemblies provided therewith
GB1521581A (en) * 1977-02-11 1978-08-16 Fletcher Sutcliffe Wild Ltd Mine roof supports
GB2026581A (en) * 1978-07-18 1980-02-06 Fletcher Sutcliffer Wild Ltd Mining equipment
GB2048355A (en) * 1979-05-08 1980-12-10 Gewerk Eisenhuette Westfalia Mine roof supports
GB1583647A (en) * 1976-09-24 1981-01-28 Huwood Ltd Mine roof supports
GB2115048A (en) * 1982-02-02 1983-09-01 Dobson Park Ind Mine roof supports
GB2129476A (en) * 1982-10-29 1984-05-16 Dowty Mining Equipment Ltd Self-advancing support and control means therefor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2657028A (en) * 1949-06-15 1953-10-27 Joy Mfg Co Walking jack
GB977503A (en) * 1961-11-02 1964-12-09 Gullick Ltd Improvements in or relating to roof supporting means for mines
DE1200284B (en) * 1962-09-27 1965-09-09 Dow Chemical Co Process for the preparation of 3, 3, 3-trifluoropropene
GB1234661A (en) * 1968-01-17 1971-06-09
DE2027299A1 (en) * 1970-06-03 1971-12-09 Klöckner-Werke ,4100 Duisburg Cap pull for the support frame of the traveling longwall mining
GB1329125A (en) * 1970-12-02 1973-09-05 Gullick Dobson Ltd Mine roof supports
HU167711B (en) * 1973-12-07 1975-12-25

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1001562A (en) * 1960-11-21 1965-08-18 Coal Industry Patents Ltd Fluid-pressure loading attachment for mine roof bars and mine roof support assemblies provided therewith
GB981568A (en) * 1961-07-22 1965-01-27 Mines Domaniales De Potasse Improvements in or relating to mine roof supporting structure
GB1583647A (en) * 1976-09-24 1981-01-28 Huwood Ltd Mine roof supports
GB1521581A (en) * 1977-02-11 1978-08-16 Fletcher Sutcliffe Wild Ltd Mine roof supports
GB2026581A (en) * 1978-07-18 1980-02-06 Fletcher Sutcliffer Wild Ltd Mining equipment
GB2048355A (en) * 1979-05-08 1980-12-10 Gewerk Eisenhuette Westfalia Mine roof supports
GB2115048A (en) * 1982-02-02 1983-09-01 Dobson Park Ind Mine roof supports
GB2129476A (en) * 1982-10-29 1984-05-16 Dowty Mining Equipment Ltd Self-advancing support and control means therefor

Also Published As

Publication number Publication date
GB2196371A (en) 1988-04-27
GB8624745D0 (en) 1986-11-19
DE3734642A1 (en) 1988-05-19
ZA877637B (en) 1988-04-18
DE3734642C2 (en) 1990-06-13

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Legal Events

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