The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 21, 1983
Filed:
Apr. 24, 1981
Horst Linke, Lunen, DE;
Helmut Erwien, Lunen, DE;
Herbert Beyer, Werne, DE;
Bodo Kerklies, Lunen, DE;
Bernhard Wleklinski, Werne, DE;
Rudolf Mainusch, Bergk-Oberaden, DE;
Dieter Grundken, Lunen, DE;
Bernd Kumor, Lunen, DE;
Ulrich Mohn, Lunen, DE;
Gewerkschaft Eisenhutte Westfalia, Lunen, DE;
Abstract
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.