an incline conveyor that includes driven rollers at both the input end and the output end of the conveyor that are powered by a single power source . power is transmitted along the length of the conveyor with a driveline that distributes power to both the input and output drive rollers . the position of the drive rollers is adjustable to tension and track the conveyor belt . the position of the gearbox is also adjustable to maintain tension on the drive belt . the resulting conveyor drive mechanism allows cleated belt conveyors to be longer and transfer at higher capacities .