GB941767A - Mine roof-supporting device - Google Patents

Mine roof-supporting device

Info

Publication number
GB941767A
GB941767A GB810661A GB810661A GB941767A GB 941767 A GB941767 A GB 941767A GB 810661 A GB810661 A GB 810661A GB 810661 A GB810661 A GB 810661A GB 941767 A GB941767 A GB 941767A
Authority
GB
United Kingdom
Prior art keywords
prop
extension
march
carried
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
GB810661A
Inventor
Michael Charles Potts
Ernest William Axten
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.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment 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 Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Priority to GB810661A priority Critical patent/GB941767A/en
Publication of GB941767A publication Critical patent/GB941767A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/58—Devices for setting props or chocks
    • 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
    • E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting devices

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)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Framework For Endless Conveyors (AREA)

Abstract

941,767. Advancing mine-roof supports. DOWTY MINING EQUIPMENT Ltd. March 5, 1962 [March 6, 1961], No. 8106/61. Heading E1E. An advancing mine roof support having a pivoted cantilever extension 16 is provided with a swingable prop 18 carried by the extension in such a manner that on meeting obstructions it does not interfere with the advancement of the support. A boss 25 on the prop 18 is received in an aperture 23, 25 of the extension 16, 22 which carries apertured brackets 27 for the reception of pivot pins 26 carried by the prop thereby allowing relative movement as is decided by the dot-dash lines. Swinging movement of the prop as it engages the coal conveyer may be used to operate hydraulic control valves for the prop.
GB810661A 1961-03-06 1961-03-06 Mine roof-supporting device Expired GB941767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB810661A GB941767A (en) 1961-03-06 1961-03-06 Mine roof-supporting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB810661A GB941767A (en) 1961-03-06 1961-03-06 Mine roof-supporting device

Publications (1)

Publication Number Publication Date
GB941767A true GB941767A (en) 1963-11-13

Family

ID=9845878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB810661A Expired GB941767A (en) 1961-03-06 1961-03-06 Mine roof-supporting device

Country Status (1)

Country Link
GB (1) GB941767A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121426A (en) * 1976-10-02 1978-10-24 Gewerkschaft Eisenhutte Westfalia Mine roof support unit and assembly
US4309131A (en) * 1979-07-12 1982-01-05 Bochumer Eisenhutte Heintzmann Gmbh & Co. Mine roof support
US4309130A (en) * 1979-07-12 1982-01-05 Bochumer Eisenhutte Heintzmann Gmbh & Co. Mine roof support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121426A (en) * 1976-10-02 1978-10-24 Gewerkschaft Eisenhutte Westfalia Mine roof support unit and assembly
US4309131A (en) * 1979-07-12 1982-01-05 Bochumer Eisenhutte Heintzmann Gmbh & Co. Mine roof support
US4309130A (en) * 1979-07-12 1982-01-05 Bochumer Eisenhutte Heintzmann Gmbh & Co. Mine roof support

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