GB1438994A - Roof support of the arcvate caving shield type in underground workings - Google Patents

Roof support of the arcvate caving shield type in underground workings

Info

Publication number
GB1438994A
GB1438994A GB5135073A GB5135073A GB1438994A GB 1438994 A GB1438994 A GB 1438994A GB 5135073 A GB5135073 A GB 5135073A GB 5135073 A GB5135073 A GB 5135073A GB 1438994 A GB1438994 A GB 1438994A
Authority
GB
United Kingdom
Prior art keywords
roof support
shield type
caving shield
arcvate
underground workings
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
GB5135073A
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Publication of GB1438994A publication Critical patent/GB1438994A/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
    • E21D23/0427—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
    • E21D23/0039—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 a strut or by a row 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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

1438994 Mine roof supports BOCHUMER EISENHUTTE HEINTZMANN & CO 5 Nov 1973 [25 Nov 1972] 51350/73 Heading E1P In an advancing mine roof support of the arcuate-caving shield type the leading end 18 of the sole-plate 7 is apertured at 41, 42 to receive an extension 28 which is positioned by a wedge 44 as shown. The extension has an apertured projection 35 welded thereto. The soleplate is extended under certain operating conditions to prevent the roof support from becoming "nose-heavy". For Figure see next column
GB5135073A 1972-11-25 1973-11-05 Roof support of the arcvate caving shield type in underground workings Expired GB1438994A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2257828A DE2257828C2 (en) 1972-11-25 1972-11-25 Device for the shield-like expansion of underground mining operations

Publications (1)

Publication Number Publication Date
GB1438994A true GB1438994A (en) 1976-06-09

Family

ID=5862694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5135073A Expired GB1438994A (en) 1972-11-25 1973-11-05 Roof support of the arcvate caving shield type in underground workings

Country Status (5)

Country Link
US (1) US3891275A (en)
BE (1) BE807641A (en)
DE (1) DE2257828C2 (en)
FR (1) FR2208048B3 (en)
GB (1) GB1438994A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199068A (en) * 1986-12-23 1988-06-29 Gullick Dobson Ltd Adjustment of mine conveyor angle by link with mine roof support

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1486906A (en) * 1974-09-07 1977-09-28 Peake C Mining apparatus
DE2800376A1 (en) * 1978-01-05 1979-07-19 Gewerk Eisenhuette Westfalia IN-HOUSE FOR AN EXTENSION FRAME OF AN UNDERGROUND MINERAL EXTRACTION PLANT
DE2803907C3 (en) * 1978-01-30 1982-09-23 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Detachable articulated connection for underground mining and its use on a longwall frame
DE2843857C2 (en) * 1978-10-07 1986-06-19 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Shield support frame
US6767200B2 (en) * 2001-09-28 2004-07-27 Mcneil-Ppc, Inc. Systems, methods and apparatuses for manufacturing dosage forms
AU2002951470A0 (en) * 2002-09-18 2002-10-03 Derrek William Batty A support device for a rib
RU2544345C2 (en) 2009-07-10 2015-03-20 Джой ММ Делавэр, Инк. Roof supports for longwall mining

Family Cites Families (4)

* 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
DE2128023B2 (en) * 1971-06-05 1974-04-18 Kloeckner-Werke Ag, 4100 Duisburg Migrating longwall construction with side-by-side support shields
DE2159535C3 (en) * 1971-12-01 1979-01-04 Thyssen Industrie Ag, 4300 Essen Shield support frame
US3811288A (en) * 1972-05-15 1974-05-21 Kloeckner Werke Ag Traveling face support with an attached extensible shield

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199068A (en) * 1986-12-23 1988-06-29 Gullick Dobson Ltd Adjustment of mine conveyor angle by link with mine roof support
GB2199068B (en) * 1986-12-23 1991-01-09 Gullick Dobson Ltd Mine roof supports

Also Published As

Publication number Publication date
FR2208048B3 (en) 1976-10-01
US3891275A (en) 1975-06-24
FR2208048A1 (en) 1974-06-21
BE807641A (en) 1974-05-22
DE2257828B1 (en) 1973-06-20
DE2257828C2 (en) 1974-01-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee