Control method for equalizing pressure of feeder on front of stack of upright letters comprises sensor which measures motion of feeder and then switches on conveyor belt to remove letters from rear of stack

摘要

The control method for equalizing the pressure of a feeder (Z) on the front of a stack of upright letters (G) comprises a sensor (6) which measures the motion (V) of the feeder. It then switches on a conveyor belt (4) to remove letters from the rear of the stack.