The Original Tumblr This might have been part of the Pioneer Pellet Plant. It looks to be a ball mill, which pulverizes ore by spinning it with thousands of ball bearings. Similar Images ...based on the tags: flywheels, graffiti, mills, pillars, pipes, rusty... Molten copper pouring being a very dangerous thing to do by hand, this scale measured the load for the “Auto Caster” that actually formed the cooling copper in its molds. Debating immigrants. 2010. A skyway connecting two Which tube carried the beer? I hope it’s the big one! Looking into the half-demolished, half-dismantled conveyor for the sea leg. So much relies on one thing stacked on top of another thing. In case power was lost, this manual signal could direct trains on and off the taconite trestle. Turning the pole would change the color of the light on top and the shape of the metal flags. In the nitrating house. Unloading boats had the option to take on fuel at Taconite Harbor. This building, among other things, pumped fuel to the dock. I love the texture of the rust through the decaying yellow paint.