GB688377A - Improvements in or relating to girder structures for mines - Google Patents

Improvements in or relating to girder structures for mines

Info

Publication number
GB688377A
GB688377A GB15419/49A GB1541949A GB688377A GB 688377 A GB688377 A GB 688377A GB 15419/49 A GB15419/49 A GB 15419/49A GB 1541949 A GB1541949 A GB 1541949A GB 688377 A GB688377 A GB 688377A
Authority
GB
United Kingdom
Prior art keywords
junctions
breadth
angle
mine
mines
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
GB15419/49A
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.)
MARGOT VON LINSINGEN
Original Assignee
MARGOT VON LINSINGEN
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 MARGOT VON LINSINGEN filed Critical MARGOT VON LINSINGEN
Publication of GB688377A publication Critical patent/GB688377A/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
    • E21D11/20—Special cross- sections, e.g. corrugated

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)
  • Tents Or Canopies (AREA)

Abstract

688,377. Mine roof supports. LINSINGEN, M. VON [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO.]. June 9, 1949 [Oct. 1, 1948], No. 15419/49. Class 20(ii) In a mine roof supporting structure comprising overlapping members of identical W-section, clamped together by plates 5, 6 of and bolts 7 to allow sliding movement under roof pressure, the breadth b<SP>2</SP> of the thickened junctions 3 of two webs inside the angle is not less than the breadth b<SP>1</SP> outside the angle and the height of these junctions is such that the overlapping parts of the members closely contact one another or the heights of the junctions 3 either at one side or the other of the sections may differ so as to leave a clearance Z between them. The invention may be adapted to a mine prop.
GB15419/49A 1948-10-01 1949-06-09 Improvements in or relating to girder structures for mines Expired GB688377A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE688377X 1948-10-01

Publications (1)

Publication Number Publication Date
GB688377A true GB688377A (en) 1953-03-04

Family

ID=6598475

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15419/49A Expired GB688377A (en) 1948-10-01 1949-06-09 Improvements in or relating to girder structures for mines

Country Status (1)

Country Link
GB (1) GB688377A (en)

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