BE821248A - SUPPORT DEVICE - Google Patents

SUPPORT DEVICE

Info

Publication number
BE821248A
BE821248A BE149684A BE149684A BE821248A BE 821248 A BE821248 A BE 821248A BE 149684 A BE149684 A BE 149684A BE 149684 A BE149684 A BE 149684A BE 821248 A BE821248 A BE 821248A
Authority
BE
Belgium
Prior art keywords
support device
support
Prior art date
Application number
BE149684A
Other languages
French (fr)
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 filed Critical
Publication of BE821248A publication Critical patent/BE821248A/en

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
    • E21D23/0427—Shield operating devices; Hinges therefor
    • 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
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • E21D23/0043—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by two or more rows of struts parallel to the working face

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)
  • Tents Or Canopies (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
BE149684A 1973-10-18 1974-10-18 SUPPORT DEVICE BE821248A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4862173A GB1477136A (en) 1973-10-18 1973-10-18 Mine roof support

Publications (1)

Publication Number Publication Date
BE821248A true BE821248A (en) 1975-02-17

Family

ID=10449293

Family Applications (1)

Application Number Title Priority Date Filing Date
BE149684A BE821248A (en) 1973-10-18 1974-10-18 SUPPORT DEVICE

Country Status (4)

Country Link
US (1) US3928981A (en)
BE (1) BE821248A (en)
DE (1) DE2448367C3 (en)
GB (1) GB1477136A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010618A (en) * 1974-01-19 1977-03-08 Dowty Mining Equipment Limited Mine roof support
GB1526399A (en) * 1974-12-18 1978-09-27 Dowty Mining Equipment Ltd Mine roof support
GB1494284A (en) * 1975-07-19 1977-12-07 Gullick Dobson Ltd Self-advancing mine roof supports
DE2540091C2 (en) * 1975-09-09 1982-06-03 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Shield support frame
DE2605068C3 (en) * 1976-02-10 1978-12-14 Thyssen Industrie Ag, 4300 Essen Cap and break shield construction for a shield support frame
DE2622208C2 (en) * 1976-05-19 1983-10-20 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Extension trestle
DE2644649C3 (en) * 1976-10-02 1986-11-13 Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen Shield support frame
DE2730295A1 (en) 1977-07-05 1979-01-25 Gewerk Eisenhuette Westfalia Telescopic mine support shield member
DE2840835C2 (en) * 1978-09-20 1986-03-06 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Shield support frame for underground longwall mining
DE2850073A1 (en) * 1978-11-18 1980-05-29 Fletcher Sutcliffe Wild Ltd Roof support for longwall mining - has permanently loaded force applicator acting on roof beams and restoring displaced chock legs after predetermined pressure drop
AT361430B (en) * 1979-01-23 1981-03-10 Voest Alpine Ag EXTENSION BLOCK
DE3131607C2 (en) * 1980-08-16 1986-12-11 Dowty Mining Equipment Ltd., Ashchurch, Tewkesbury,Gloucestershire Shield support frame with a rigid sole construction
GB2143882B (en) * 1983-07-23 1986-11-05 Dowty Mining Equipment Ltd Shield supports suitable for use in mines
GB2188665B (en) * 1986-04-01 1990-02-21 Dobson Park Ind Mine roof supports

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1124665A (en) * 1966-04-29 1968-08-21 Gullick Ltd Improvements in or relating to mine roof supports
BE789390A (en) * 1971-10-02 1973-01-15 Gewerk Eisenhuette Westfalia SHIELD SUPPORT FRAMES
US3848928A (en) * 1973-02-12 1974-11-19 Taiheiyo Coal Mining Co Ltd Pantographic wall protector and automatic controlling device thereof

Also Published As

Publication number Publication date
DE2448367B2 (en) 1979-09-06
DE2448367C3 (en) 1980-05-14
GB1477136A (en) 1977-06-22
DE2448367A1 (en) 1975-04-24
US3928981A (en) 1975-12-30

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: DOWTY MINING EQUIPMENT LTD

Effective date: 19841018