hopper

Nearly vertical conveyor belts lifted dry ingredients high up to be deposited into hoppers where they were mixed with water and then the wet concrete was poured into waiting trucks below.

“That way, companies don’t think you’re a job hopper,” she said.

They said Grace employees were responsible for loading the hopper cars, plugging the holes of any cars leaking vermiculite and occasionally cleaned up material that spilled in the rail yard.

It was most likely a mid-speed hopper, something like a swamp wallaby.

The centre still contains the grain hoppers which are individually numbered and almost reach the full height of the building.