Patent ID: 6662930
Filing Date: 2003-12-16
Classification: G01G,Y10S

Abstract:
An apron weigh feeder for simultaneously transporting and weighing heavy bulk materials, comprising:a feeder frame; a head drive shaft mounted rotatably on the feeder frame, the head drive shaft having a drive sprocket mounted thereto; a tail traction wheel mounted rotatably on the feeder frame at an opposite end of the feeder frame from the head drive shaft, the tail traction wheel aligned with the drive sprocket; a plurality of carry rollers located and aligned between the drive sprocket and tail traction wheel, the carry rollers supported rotatably by a plurality of carry roller support frames, respectively, the carry roller support frames each mounted on the feeder frame; an endless crawler chain reeved about the drive sprocket and tail traction wheel, the crawler chain in operation of the feeder moving in a chain path comprised of an upper rectilinear path and a lower rectilinear path connected by two curvilinear end paths, and the crawler chain supported by the carry rollers while moving in the upper rectilinear path; a plurality of flights fixed to the crawler chain to define a carrying surface of the feeder; and a weigh scale assembly substituted in place of at least one of the carry roller support frames, the weigh scale assembly operable to generate an output signal indicative of the weight of bulk material passing over the weigh scale assembly.