Patent ID: 6948779
Filing Date: 2005-09-27
Classification: E02F,E21C

Abstract:
1. A mining member provided as a cutting roller for a continuously operating surface miner for mining mineral raw materials possessing solid and abrasive properties; the mining member comprising: a cylindrical or substantially cylindrical roller basic body for providing a cutting roller support; a drive for rotating said roller basic body; supports fastening said roller basic body to the surface miner; a roller jacket disposed around said roller basic body, said jacket having mini-disk bits arranged in rolling paths, and conveying screws having opposite pitches and extending from two edges of the roller to the middle of the roller to form two roller halves, which are symmetrical to one another providing a mineral raw material cutting roller for block cutting with a larger middle area forming a mining front joined on both sides by edge areas, the cutting roller rolling paths providing a circumferential interface with a middle cylinder joined on both sides by outwardly tapering frusta, said frusta having a length equal to at least 0.25 of a mining height (H