GB1083218A - Roof-bar connection for underground mines - Google Patents

Roof-bar connection for underground mines

Info

Publication number
GB1083218A
GB1083218A GB2401865A GB2401865A GB1083218A GB 1083218 A GB1083218 A GB 1083218A GB 2401865 A GB2401865 A GB 2401865A GB 2401865 A GB2401865 A GB 2401865A GB 1083218 A GB1083218 A GB 1083218A
Authority
GB
United Kingdom
Prior art keywords
tongue
roof
bar connection
underground mines
support bars
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
GB2401865A
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DEV26100A external-priority patent/DE1207319B/en
Application filed by Individual filed Critical Individual
Publication of GB1083218A publication Critical patent/GB1083218A/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
    • E21D17/0213—Assembling devices for pivoting caps upwardly
    • 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
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type

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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

1,083,218. Mine roof support bars. A. VANWERSCH. June 4, 1965 [April 28, 1965], No. 24018/65. Addition to 1,083,217. Heading E1E. In a tongue and fork connection for mine roof support bars the tongue is slotted to receive a pin 9 having hooked ends 11 and a flat portion adapted to cooperate with lugs 12 on the tongue to prevent relative rotation therebetween. The inclined surfaces 6a, 6b of the tongue are formed with recesses 14 to accommodate the ends 11. For slightly modified pin and tongue constructions, Figs. 3, 4 and 5 (not shown) should be referred to.
GB2401865A 1964-06-06 1965-06-04 Roof-bar connection for underground mines Expired GB1083218A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEV26100A DE1207319B (en) 1964-06-06 1964-06-06 Cap connection for pit construction in underground operations
DEV28346A DE1220370B (en) 1964-06-06 1965-04-28 Cap connection for pit construction in underground operations

Publications (1)

Publication Number Publication Date
GB1083218A true GB1083218A (en) 1967-09-13

Family

ID=26001768

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4702164A Expired GB1083217A (en) 1964-06-06 1964-11-18 A support for an underground roof
GB2401865A Expired GB1083218A (en) 1964-06-06 1965-06-04 Roof-bar connection for underground mines

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB4702164A Expired GB1083217A (en) 1964-06-06 1964-11-18 A support for an underground roof

Country Status (4)

Country Link
BE (1) BE664853A (en)
DE (1) DE1220370B (en)
FR (1) FR1435672A (en)
GB (2) GB1083217A (en)

Also Published As

Publication number Publication date
DE1220370B (en) 1966-07-07
BE664853A (en) 1965-10-01
GB1083217A (en) 1967-09-13
FR1435672A (en) 1966-04-15

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