1. Twenty kinds of powder arrived daily in 50-pound paper bags. In addition, storage tanks of liquid would be filled weekly from tank trucks.
2. Two or three acetate helpers would jointly unload pallets of bags into the storage area using a lift truck.
3. Several times during a shift, the helpers would bring the bagged material up in the elevator to the third floor,
where it would be stored temporarily along the walls.
4. Mixing batches was under the direction of the group leader and was rather like baking a cake. Following a prescribed formula, the group leader, mixers, and helpers operated valves to feed in the proper solvent and manually dump
in the proper weight and mixture of solid material.
The glob would be mixed by giant eggbeaters and heated according to the recipe.