Support assemblies for mine workings

Patent · Tue May 12 00:00:00 EDT 1981

OSTI ID:6086727

Dodt, J; Plevak, L

A support assembly for a mine working has a floor-sill structure for engaging on the floor of the working and a roof-engaging member or members braced by one or more props against the roof of the working. The floor-sill structure employs one or more slidable skids which can be selectively extended in length at the forward end by fitting an extension component of the same width thereto. Each skid is recessed to receive rear projections of the associated extension component and securing means, such as spindles or shaped locking elements, are used to secure the extension component to the skid. When the extension component is removed, inserts are located in the recesses of the skid to fill the latter and these inserts can be likewise secured with the same securing means.

• Assignee: Gewerkschaft Eisenhutte Westfalia (Germany, Federal Republic of)
• Patent Number(s): US 4266891
• OSTI ID: 6086727
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
422000 -- Engineering-- Mining & Underground Engineering-- (1980-)
FLOORS
MECHANICAL STRUCTURES
MINES
ROOFS
SUPPORTS