Positioning cradle for mine roof supports
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 2, 2003
Grant Date -
N/A
app pub date -
Feb 17, 2000
filing date -
Feb 17, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cradle for placing a support in a mine. The cradle includes a housing for holding the mine support. The cradle includes an arm mechanism rotatably attached to the housing which has an open position that allows the support to enter the housing and a closed position which prevents the support from leaving the housing. The cradle includes an attachment mechanism connected to the housing for rotatably attaching the housing to a platform of a mechanism for moving the mine support. The attachment mechanism maintains the housing in the horizontal position or a vertical position. A method for placing a support in a mine. The method includes the steps of moving a support from a platform to a cradle. Then there is the step of rotating the cradle until the support is in a vertical position relative to ground. Next there is the step of placing the support on the ground. Then there is the step of separating the support from the cradle. Next there is the step of tensioning the support with the mine roof.
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Cited Art Landscape
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