Slagbins at Sunrise A morning shower made the plant’s metal siding shake… probably nothing, though, compared to when the furnaces were blasting. The objects on the ground are molten ore containers. Similar Images ...based on the tags: machinery, sheet-metal, smokestacks... Aaron by the concentrator. Copper poured from this furnace and was cast by the autocaster on the right into billets. On the upper floors where the sunlight is yellow–the color of flour dust, once exposed to the elements. One of my favorite visual feature of grain elevators, especially big ones, is how they repeat. This movable chute came off its rails. Looking at The Windy City from the top of the coal tower. The pond you see is the former ACME Coke coal yard. Bits and things in a pile in the corner of the smelter, the unsold chunks of industrial history that didn’t sell at an on-site auction before my visit. The corner of the elevator… lumber armored with steel for fireproofing and water resistance. One of the early automated painting booths in the paint plant line.