rackman

1 :  a power plant or mill worker who cleans the racks that screen fish, weeds, and other foreign matter from river water before it enters machines

2 :  one who working from a raised loading rack fills tank cars, trucks, or ships with petroleum products

3 :  a worker who places starting blanks between anodes in electrolysis tanks before the deposition of copper starting sheets on the blanks

4 :  racker a