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AssigneeGewerkschaft Eisenhutte Westfalia
InventorsHorst Linke, Helmut Erwien, Herbert Beyer, Bodo Kerklies, Bernhard Wleklinski, Rudolf Mainusch, Dieter Grundken, Bernd Kumor, Ulrich Mohn
Estimating the term…
A mineral mining installation comprises a longwall conveyor, a plough movable to and fro along a guide fixed to the face side of the longwall conveyor, and a drive station at one end of the longwall conveyor. The drive station includes a drive frame supporting drive means for driving the longwall conveyor. A support beam is provided at the goaf side of the drive station. The support beam extends substantially parallel to the drive frame. A floor plate extends beneath the drive frame. The goaf-side end portion of the floor plate is supported on the support beam by means of a lifting device, whereby the goaf-side end portion of the floor plate can be moved up and down relative to the support beam by the lifting device.
A mineral mining installation comprising a longwall conveyor, a winning machine movable to and fro along the face side of the longwall conveyor, a drive station at one end of the longwall conveyor, the drive station including a drive frame supporting drive means for driving the longwall conveyor, a support beam at the goaf side of the drive station, the support beam extending substantially parallel to the drive frame, and a floor plate extending beneath the drive frame, wherein one portion of the floor plate is supported on the support beam by means of a lifting device, whereby said one portion of the floor plate can be moved up and down relative to the support beam by the lifting device.
A mineral mining installation comprising a longwall conveyor, a winning machine movable to and fro along the face side of longwall conveyor, a drive station at each end of the longwall conveyor, each drive station including a drive frame supporting drive means for driving the longwall conveyor, a respective support beam being provided at the goaf side of each drive station, each support beam extending substantially parallel to the respective drive frame, and a respective floor plate extending beneath each drive frame, wherein one portion of each floor plate is supported on the respective support beam by means of a respective lifting device, whereby said one portion of each floor plate can be moved up and down relative to the respective support beam by the respective lifting device.
Dependencies are inferred from the claim text.