Mill Door Beautiful doors separated the boiler room and the sugar mill. Can you imagine the gracefully curving steps in a power plant today? Similar Images ...based on the tags: archways, doors, leaves, peeling-paint, shadows, staircases... In a strange loft next to the brewhouse are these twin kettles, which seem much older than the main kettles in the brewhouse. This building cleaned the barrels that transported ingredients through the plant. This wide skyway connected two of the inner factory buildings, where parts would have to be transported to keep the operation moving, which is why it is much wider than other bridges in the plant. The office was redder than the rest of the building. A look at another “Belt-o-Vator”. I like the sign. The scale of the grain hoppers helps tell the story of how large Hamm’s was in its day. These steam powered pumps were integral to the cooling of the meat packing plant next door. Looking at the side of 4B from the roof of its car shed. One of the oldest buildings had a wide central staircase with well worn steps. They were utilitarian and beautiful.