发明名称 |
LINEAR CUTTING ROTARY HEAD CONTINUOUS MINING MACHINE |
摘要 |
<p>The triangular-shaped rotary head mounted on an eccentrically driven shaft rotates at a low speed in a path determined by a ring/pinion gear ratio, such that cutting tools mounted on the apices of the triangular-shaped rotary head follow a square path entering the face of the coal seam to be cut at a top corner and making a long linear vertical cut at a constant depth of approximately one and one-half times the diameter of the rotary head greatly reducing dust generation and methane ignition potential while increasing productivity.</p> |
申请公布号 |
CA1078417(A) |
申请公布日期 |
1980.05.27 |
申请号 |
CA19770281427 |
申请日期 |
1977.06.27 |
申请人 |
UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF COMMER |
发明人 |
ROEPKE, WALLACE W.;RASMUSSEN, JOSEPH W.;LINDROTH, DAVID P. |
分类号 |
E21C27/00;E21C27/24;(IPC1-7):21C27/24 |
主分类号 |
E21C27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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