CA1122022A - Mine roof supports - Google Patents

Mine roof supports

Info

Publication number
CA1122022A
CA1122022A CA000334345A CA334345A CA1122022A CA 1122022 A CA1122022 A CA 1122022A CA 000334345 A CA000334345 A CA 000334345A CA 334345 A CA334345 A CA 334345A CA 1122022 A CA1122022 A CA 1122022A
Authority
CA
Canada
Prior art keywords
shield
roof
support
mine
roof beam
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
CA000334345A
Other languages
English (en)
French (fr)
Inventor
Malcolm Wake
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.)
Fletcher Sutcliffe Wild Ltd
Original Assignee
Fletcher Sutcliffe Wild 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 Fletcher Sutcliffe Wild Ltd filed Critical Fletcher Sutcliffe Wild Ltd
Application granted granted Critical
Publication of CA1122022A publication Critical patent/CA1122022A/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
    • E21D23/0043—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)
  • Lining And Supports For Tunnels (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
CA000334345A 1978-09-16 1979-08-23 Mine roof supports Expired CA1122022A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7837100 1978-09-16
GB7837100 1978-09-16

Publications (1)

Publication Number Publication Date
CA1122022A true CA1122022A (en) 1982-04-20

Family

ID=10499724

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000334345A Expired CA1122022A (en) 1978-09-16 1979-08-23 Mine roof supports

Country Status (4)

Country Link
AU (1) AU528017B2 (enrdf_load_stackoverflow)
CA (1) CA1122022A (enrdf_load_stackoverflow)
DE (1) DE2933880A1 (enrdf_load_stackoverflow)
IN (1) IN152998B (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1166241A (en) * 1966-01-04 1969-10-08 Coal Industry Patents Ltd Inclined-Prop Powered Support.
DE2600455C3 (de) * 1976-01-08 1981-12-24 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Hydraulisches Schildausbaugestell
ZA762055B (en) * 1976-04-08 1977-05-25 Dowty Mining Equipment Ltd Mine roorf support

Also Published As

Publication number Publication date
AU528017B2 (en) 1983-03-31
DE2933880C2 (enrdf_load_stackoverflow) 1988-05-26
AU5011579A (en) 1980-03-27
IN152998B (enrdf_load_stackoverflow) 1984-05-19
DE2933880A1 (de) 1980-04-03

Similar Documents

Publication Publication Date Title
CA1232464A (en) Mine roof support unit
US4010618A (en) Mine roof support
US3885396A (en) Mine roof supports
US3952525A (en) Mine roof support
CA1122022A (en) Mine roof supports
US3898845A (en) Mineral mining installations
US4274764A (en) Mine roof supporting system
US4102140A (en) Self-advancing mine roof supports
CA1110859A (en) Buttressed sprag plate
US3448584A (en) Hydraulic casing units for mine workings
US4311417A (en) Mine roof support
GB2030202A (en) Mine roof supports
US4073151A (en) Mine roof support assemblies
US4132081A (en) Mine roof support
US4347021A (en) Mine roof supports
US3375668A (en) Mine roof supports
US4449860A (en) Mine roof supports
US4121426A (en) Mine roof support unit and assembly
US2910282A (en) Mine roof support devices
US4557635A (en) Shield-type support frame
GB1574958A (en) Mine roof support
US3932998A (en) Mine roof support
US4402634A (en) Mineral mining installation
US4268193A (en) Mine roof supports
US4571127A (en) Advance mechanism for mine roof support units

Legal Events

Date Code Title Description
MKEX Expiry