Rack device for advancing a mining machine
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United States of America Patent
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Sep 27, 1988
Grant Date -
N/A
app pub date -
Jul 14, 1987
filing date -
Jul 17, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rack device for advancing a drum cutter mining machine used in underground mining operations. The rack is comprised of a plurality of rack sections positioned end-to-end wherein the discrete sections are held together by brackets which connect two adjacent rack sections. The bracket contains a bracket wall which has a top surface positioned directly beneath the end pins of the discrete rack sections. Force exerted on the rack pins during the translation of the drum cutting mining machine bears upon the bracket wall thereby diminishing damage to the rack structure caused by tilting forces created during translation of the mining machine.
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