Mine stopping and method of and jack for installing same
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United States of America Patent
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-
Nov 20, 1984
Issued Date -
N/A
app pub date -
May 11, 1982
filing date -
Apr 9, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mine stopping comprising a plurality of elongate panels adapted to extend vertically in side-by-side relation from the floor to the roof of a passageway in a mine. Each panel comprises a first elongate member constituting the lower member of the panel and second elongate member constituting the upper member of the panel, each member having a web and flanges at opposite sides of the web, one of the members having a telescoping sliding fit in the other. The upper member of each panel has a head at its upper end and a sealing member held in the head extending up out of the upper end of the upper member for engagement with the roof, the head being supported on the panel with the ends of the head spaced from the flanges of the upper member. The lower member of each panel has a foot at its lower end, the foot being secured to the lower panel member with the ends of the foot spaced from the side flanges thereof. The spacing of the ends of the head and ends of the foot from the side flanges of the panel members permits the side flanges to move toward one another to preserve the integrity of the stopping on relative lateral movement of the ribs toward one another. And a method of and jack for installing the mine stopping.
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