Self-advancing mine roof supports
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United States of America Patent
Stats
-
Mar 19, 1985
Grant Date -
N/A
app pub date -
Oct 22, 1982
filing date -
Oct 23, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A self-advancing mine-roof-support for use in or aligned with a main roadway or gate has a floor-engaging part and a roof engaging part spaced apart by extensible load-bearing prop or jack means, and engagement means for a face-conveyor and a transversely acting transfer conveyor whereby their relative positions are constrained to facilitate discharge of mineral from one conveyor to the other. The engagement means for the face conveyor comprises sliding anchor beams that assure maintenance of the relative attitudes of the support and the face conveyor and the transfer conveyor is held fore and aft of the support.
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Cited Art Landscape
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