| 20100025306 | ADJUSTABLE COAL SCREENING APPARATUS - A screening and sorting assembly for coal particles includes a bin for receiving crushed coal. The bin is provided with a weir over which the coal particles are passed onto a pivoted screen assembly having a plurality of openings therethrough for sorting the coal particles. A cam arrangement is provided for varying the angle of the screening assembly relative to the horizontal to vary the speed of flow of the coal particles downwardly over the screening assembly. | 02-04-2010 |