The mixing 48-in. belts lie flat and run from the bottom of the mixer bins to two coal mixers which deliver the coal to a reversing 42-in. belt conveyor, taking it to either one of two 36-in. belts, running to the top of two larry bins. Each larry bin is located between two batteries of ovens, … Under the larry bins are provided platform scales which enable the larry operator to fill his larry with the exact amount of coal to charge an oven.