Tunneling machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 9, 1986
Grant Date -
N/A
app pub date -
Aug 1, 1985
filing date -
Aug 1, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tunneling machine according to the invention has a mobile and automotive base movable on the ground horizontally and longitudinally toward a face to be cut away, a turntable on the base defining an upright pivot axis and having a main support pivotal about the axis on the base, an arm having an inner end pivotal about a horizontal axis on the main support and having an outer end, and a cutter on the outer end of the arm. A conveyor having an intake on the ground between the base and the cutter and extends back away from the face, normally through the base. Actuators connected between the cutter, arm, support, conveyor, and base move the cutter over the face to cut rock therefrom and convey the cut rock back away from the face. A drilling apparatus including a drilling unit for making a hole extending along a bore axis and another unit for setting a rockbolt in the hole thus drilled is carried on the arm and engageable with the ceiling immediately adjacent the face. The cutter is engageable with the floor to support the arm thereon while the drilling apparatus is boring in the ceiling.
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