GB851682A - A cross-bar for the slidable assembly of associated members of roof supports - Google Patents

A cross-bar for the slidable assembly of associated members of roof supports

Info

Publication number
GB851682A
GB851682A GB17893/59A GB1789359A GB851682A GB 851682 A GB851682 A GB 851682A GB 17893/59 A GB17893/59 A GB 17893/59A GB 1789359 A GB1789359 A GB 1789359A GB 851682 A GB851682 A GB 851682A
Authority
GB
United Kingdom
Prior art keywords
cross
bar
roof supports
associated members
slidable assembly
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
GB17893/59A
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.)
FORGES ET ATELIERS de la NAVE
Original Assignee
FORGES ET ATELIERS de la NAVE
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 FORGES ET ATELIERS de la NAVE filed Critical FORGES ET ATELIERS de la NAVE
Publication of GB851682A publication Critical patent/GB851682A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

851,682. Mine-roof supports. FORGES ET ATELIERS DE LA NAVE. May 26, 1959 [Feb. 5, 1959], No. 17893/59. Class 20(2) A stirrup E and cross-bar e clamp for frictionally-sliding roof bars has the ends e 3 of the cross-bar bent round to engage its centre part and the stirrup arms.
GB17893/59A 1959-02-09 1959-05-26 A cross-bar for the slidable assembly of associated members of roof supports Expired GB851682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR851682X 1959-02-09

Publications (1)

Publication Number Publication Date
GB851682A true GB851682A (en) 1960-10-19

Family

ID=9324797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17893/59A Expired GB851682A (en) 1959-02-09 1959-05-26 A cross-bar for the slidable assembly of associated members of roof supports

Country Status (1)

Country Link
GB (1) GB851682A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129030A (en) * 1982-10-23 1984-05-10 Arbed Techno Gmbh Mine roof support clamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129030A (en) * 1982-10-23 1984-05-10 Arbed Techno Gmbh Mine roof support clamp

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