摘要 |
In a face support with a roof bar 1 consisting of a prop-supported main bar 2 and a front cantilever 3, the main bar 2 and the front cantilever 3 being pivotably connected to one another via a common front-cantilever joint 4, and the front-cantilever joint 4 being bridged via setting cylinders 5 mounted in an articulated manner on both sides on the main bar 2 and the front cantilever 3, the arrangement is made in such a way that a shaped bearing portion 6 open towards the top and restricted at the top by a throat 7 is arranged on the coal-face side on the main bar 2, a matching bearing journal 8 with a narrowed portion 9 adapted to the throat 7 is provided on the goaf side on the front cantilever 3, and the narrowed portion 9 is inclined relative to the longitudinal direction of the front cantilever 3 by an acute angle c. <IMAGE>
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申请人 |
KLOECKNER-BECORIT GMBH, 4620 CASTROP-RAUXEL, DE |
发明人 |
WATERMANN, WILLY, 4600 DORTMUND-LANSTROP, DE;SCHLUTZ, HEINZ-GERD, DIPL.-ING., 4370 MARL, DE |