Sectional cutting machine used to cut curved gallery cross-sections true to profile
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United States of America Patent
Stats
-
Jun 7, 1988
Grant Date -
N/A
app pub date -
Jun 23, 1986
filing date -
Oct 26, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Sectional cutting machine used to cut a curved gallery cross-section in underground mining and tunneling operations with cutting rollers arranged in a movable way in regard to the machine frame. The machine is characterized by the circumstance, that to cut the upper layer (10) and the gallery roof (11), an upper roller (2) configured as a frontal surface roller is used. The roller is moved on a support arm (4) along a rotation axis (6) which is parallel to the longitudinal axis of the machine. The lower layer is cut by a lower roller (3), configured as a lateral cutting roller with even front surfaces (9) of the roller bodies (8). This lower roller (3) is moved along a predetermined, even path, which is parallel to the gallery bed (17).
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Cited Art Landscape
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