GB1095369A - Roof supports suitable for use in mines - Google Patents

Roof supports suitable for use in mines

Info

Publication number
GB1095369A
GB1095369A GB4118965A GB4118965A GB1095369A GB 1095369 A GB1095369 A GB 1095369A GB 4118965 A GB4118965 A GB 4118965A GB 4118965 A GB4118965 A GB 4118965A GB 1095369 A GB1095369 A GB 1095369A
Authority
GB
United Kingdom
Prior art keywords
mines
roof supports
supports suitable
sept
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
GB4118965A
Inventor
Michael Charles Potts
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 GB4118965A priority Critical patent/GB1095369A/en
Publication of GB1095369A publication Critical patent/GB1095369A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/04—Cantilever extension or similar protecting devices for use in longwall working
    • 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)
  • Agricultural Machines (AREA)

Abstract

1,095,369. Mine roof supports. DOWTY MINING EQUIPMENT Ltd. Sept. 1, 1966 [Sept. 28, 1965], No. 41189/65. Addition to 905,312. Heading E1E. In a mine roof bar assembly as claimed in Claim 1 of Specification 905,312 the roof engaging member 7 is modified by being adjustably mounted on the rigid bar 1 as by adjustable rods 13 disposed as shown.
GB4118965A 1965-09-28 1965-09-28 Roof supports suitable for use in mines Expired GB1095369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4118965A GB1095369A (en) 1965-09-28 1965-09-28 Roof supports suitable for use in mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4118965A GB1095369A (en) 1965-09-28 1965-09-28 Roof supports suitable for use in mines

Publications (1)

Publication Number Publication Date
GB1095369A true GB1095369A (en) 1967-12-20

Family

ID=10418509

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4118965A Expired GB1095369A (en) 1965-09-28 1965-09-28 Roof supports suitable for use in mines

Country Status (1)

Country Link
GB (1) GB1095369A (en)

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