Patent ID: 7891479

Claim:
A mobile frame assembly for mounting a conveyor thereon, the frame assembly comprising: a skeleton; a carriage assembly movably coupled to the skeleton for mounting the conveyor thereon, the carriage assembly being movable in a first direction and a second direction with respect to the skeleton, the second direction being substantially opposite the first direction, the carriage assembly including at least one conveyor support for positioning the conveyor thereon, a plurality of wheels rotatably coupled to the at least one conveyor support, and at least one wheel guide for guiding the plurality of wheels in the first direction and the second direction, thereby enabling movement of the carriage assembly in the first direction and the second direction; a drive system for moving the carriage assembly in the first direction and the second direction, the drive system including, a drive member coupled to the carriage assembly, a drive shaft rotatably mounted to the frame assembly, an idler shaft rotatably mounted to the frame assembly, a first cable having a first end attached to the drive shaft and a second end attached to the drive member, such that rotation of the drive shaft in a third direction produces a corresponding motion of the drive member in the first direction, and a second cable having a first end attached to the drive shaft, a second end attached to the drive member, and a portion intermediate the first and second ends wrapped about the idler shaft, such that rotation of the drive shaft in a fourth direction opposite the third direction produces a corresponding motion of the drive member in the second direction.