Lyons Boiler Installed in 1904 at the center of the plant, this is one of two batteries of boilers. Being in Oshkosh, heat was very important to keeping labor moving in the cold months. Related Similar Images ...based on the tags: boilers, chutes, machinery, rusty... The end of the monorail in the nitrating house. Old boathouses near the dock. In the nitrating house. Because there’s no Port-a-John underground. On first impression it might look like a funky mailbox, but trust me on this one; it’s a flour bolter chute. In flour milling, “bolting” means sifting the flour through successively smaller screens. This wheel scoops the washings from the sluice room and places it on the tailings conveyor. When I revisited the mine in 2013, the hoists were scrapped and sitting by the road. Compressors and turbines over the Eagle River. Looking out the finishing end of the sintering plant at a network of torched-off catwalks through a maze of rust and asbestos. Paradise.