CA995908A - Mine roof supports - Google Patents

Mine roof supports

Info

Publication number
CA995908A
CA995908A CA176,003A CA176003A CA995908A CA 995908 A CA995908 A CA 995908A CA 176003 A CA176003 A CA 176003A CA 995908 A CA995908 A CA 995908A
Authority
CA
Canada
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
Application number
CA176,003A
Other versions
CA176003S (en
Inventor
Peter Shuttleworth
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA995908A publication Critical patent/CA995908A/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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with advancing shifting devices connected therewith
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Body Structure For Vehicles (AREA)
CA176,003A 1972-07-14 1973-07-09 Mine roof supports Expired CA995908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3300172A GB1408429A (en) 1972-07-14 1972-07-14 Mine roof supports

Publications (1)

Publication Number Publication Date
CA995908A true CA995908A (en) 1976-08-31

Family

ID=10347201

Family Applications (1)

Application Number Title Priority Date Filing Date
CA176,003A Expired CA995908A (en) 1972-07-14 1973-07-09 Mine roof supports

Country Status (3)

Country Link
US (1) US3872678A (en)
CA (1) CA995908A (en)
GB (1) GB1408429A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113847071A (en) * 2021-10-19 2021-12-28 安徽理工大学 Adjustable pedal applied to coal mining hydraulic support

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2416306C2 (en) * 1974-04-04 1979-12-06 Becorit Grubenausbau Gmbh, 4350 Recklinghausen Breakage and misalignment shielding for a shield support for underground mining operations
DE2732339C2 (en) * 1977-07-16 1990-03-29 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Longwall mining, especially longwall mining
US4480946A (en) * 1981-10-19 1984-11-06 Kelley Jay H Gob canopy for a mine roof support
DE3239377A1 (en) * 1982-10-23 1984-04-26 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Powered support assembly for underground mining operations
GB2192021B (en) * 1986-06-26 1990-03-21 Gullick Dobson Ltd A roof engaging structure for a mine roof support
DE102008029085B3 (en) * 2008-06-20 2010-01-28 Bucyrus Dbt Europe Gmbh Shield cap for a shield extension
DE102008029014B3 (en) * 2008-06-20 2010-04-15 Bucyrus Dbt Europe Gmbh Shield frame for underground mining and surface support element for this purpose
CN102022130B (en) * 2009-09-15 2013-03-27 兖州煤业股份有限公司 Stepping self-walking cantilever timbering of fully mechanized workface
US20120181087A1 (en) * 2009-09-28 2012-07-19 Janice Marquardt Falling object protection system
DE202009015653U1 (en) * 2009-11-25 2011-07-12 Bucyrus Europe Gmbh Shield cap for a shield extension
CN102230387A (en) * 2011-05-24 2011-11-02 中煤北京煤矿机械有限责任公司 Movable anti-falling rack canopy guard device and tip bracket
DE102011105556B4 (en) * 2011-06-25 2023-04-13 Abg Allgemeine Baumaschinen-Gesellschaft Mbh road construction machine
CN102305093B (en) * 2011-09-29 2013-09-11 郑州四维机电设备制造有限公司 Transitional hydraulic bracket for gob-side entry retaining
CN109441516B (en) * 2018-12-11 2024-02-20 贵州大学 Colliery exploitation subsidence area protection device that angle is convenient for adjust
CN110043299A (en) * 2019-05-14 2019-07-23 江苏中贵重工有限公司 A kind of suspension device and roofboltier
CN113845056B (en) * 2021-09-22 2022-07-26 江苏虹一工程建设有限公司 Method and system based on single-action synchronous alternate jacking

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113661A (en) * 1959-09-09 1963-12-10 Gewerk Eisenhuette Westfalia Apparatus for displacing a longitudinal mining conveyor
BE649949A (en) * 1963-07-02
US3490243A (en) * 1966-11-16 1970-01-20 Karl Maria Groetschel Roof supports for mine workings
GB1182817A (en) * 1967-06-19 1970-03-04 Wild A G & Co Ltd Fluid-Operable Self-Advancing Mine Roof Support.
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113847071A (en) * 2021-10-19 2021-12-28 安徽理工大学 Adjustable pedal applied to coal mining hydraulic support
CN113847071B (en) * 2021-10-19 2024-04-16 安徽理工大学 Adjustable pedal applied to coal mining hydraulic support

Also Published As

Publication number Publication date
GB1408429A (en) 1975-10-01
AU5782673A (en) 1975-01-09
US3872678A (en) 1975-03-25

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