GB986316A - Roof support assembly suitable for use in mines - Google Patents

Roof support assembly suitable for use in mines

Info

Publication number
GB986316A
GB986316A GB4676062A GB4676062A GB986316A GB 986316 A GB986316 A GB 986316A GB 4676062 A GB4676062 A GB 4676062A GB 4676062 A GB4676062 A GB 4676062A GB 986316 A GB986316 A GB 986316A
Authority
GB
United Kingdom
Prior art keywords
mines
support assembly
roof support
assembly suitable
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
GB4676062A
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 GB4676062A priority Critical patent/GB986316A/en
Publication of GB986316A publication Critical patent/GB986316A/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
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith

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)
  • Framework For Endless Conveyors (AREA)

Abstract

986,316. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. Dec. 10, 1963 [Dec. 11, 1962], No. 46760/62. Heading E1E. In a method of advancing either or both of two roof supports 1, 2 towards a conveyer 3, a fluid-pressure jack 8 pivoted to the conveyer carries a pulley 9 engaging a rope or chain 6 passing around guide pulleys 7 and fastened to the movable supports 1, 2. Each support comprises a floor bar 4 carrying three hydraulic props 5 supporting a roof bar (not shown).
GB4676062A 1962-12-11 1962-12-11 Roof support assembly suitable for use in mines Expired GB986316A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4676062A GB986316A (en) 1962-12-11 1962-12-11 Roof support assembly suitable for use in mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4676062A GB986316A (en) 1962-12-11 1962-12-11 Roof support assembly suitable for use in mines

Publications (1)

Publication Number Publication Date
GB986316A true GB986316A (en) 1965-03-17

Family

ID=10442483

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4676062A Expired GB986316A (en) 1962-12-11 1962-12-11 Roof support assembly suitable for use in mines

Country Status (1)

Country Link
GB (1) GB986316A (en)

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