Patent ID: 6098812
Filing Date: 2000-08-08
Classification: B07B,B60P,E01C

Abstract:
A mobile screening apparatus which comprises:a wheel-supported main frame;a hopper mounted at or near to one end of the main frame to receive a supply of bulk material which is to be screened;an elevator mounted on the frame and having a lower receiving end arranged to receive material from the hopper, and to convey this material to an upper discharge end of the elevator;a screening device mounted on the frame and arranged to receive material from the discharge end of the elevator, and to screen the material into different size ranges;discharge means associated with the screening device and operative to discharge the different size ranges to respective discharge positions;a towing coupling provided at said one end of the frame; anda tractor unit releasably coupled with said towing coupling and operative to move the apparatus over the ground, said tractor unit being short in length relative to the length of the screening apparatus and being supported by endless tracks so as to render the tractor unit/screening apparatus combination highly maneuverable, the tractor unit including a driver's cab to permit driver control of the movement and/or operation of the screening apparatus.