Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent
1981-09-18
1983-12-13
Byers, Jr., Nile C.
Hydraulic and earth engineering
Earth treatment or control
Chemical
405303, 175 85, 175211, 173 32, 81 5737, E21D 2002
Patent
active
044202776
ABSTRACT:
An apparatus for bolting the roof of an underground mine is disclosed comprising a mobile frame, a boom extending from the frame and a housing provided at the end of the frame. The housing supports an upwardly extending stinger, a drilling mechanism including a drill centralizer having a central bore therethrough and a passageway in communication with the central bore, a device for delivering a container of roof bolting anchoring media through the passageway and through the drill centralizer and into a drilled hole, a device for indexing a roof bolt into alignment with the drilled hole and a spinner for driving the roof bolt into the drilled hole. The present invention also provides a method for bolting the roof of an underground mine comprising the steps of stinging a housing against the roof of the mine, moving a drill centralizer into communication with the roof and drilling a hole in the roof. Without retracting the drill centralizer from communication with the roof, a container of roof bolt anchoring media is delivered through the centralizer and into the drilled hole. The drill centralizer is thereafter retracted and the housing is moved to align a roof bolt with a drilled hole. Then the roof bolt is driven into the drilled hole and the bolt anchoring media sets around the bolt.
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Eimco-Secona Roof Bolter Publication copyrighted by Envirotech Corporation in 1973.
Hibbard George A.
Lumbra Ralph C.
Morrison Ward D.
Augustin Raymond W.
Byers Jr. Nile C.
Joy Manufacturing Company
O'Rourke, Jr. William J.
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