Monorail Ramp Looking up to the second floor of the Nitrating House, where cotton would be soaked in nitric acid. These brought cotton into the building. Similar Images ...based on the tags: black&white, conveyors, lights, machinery, skyways, steel, windows... This is where the transformers were housed. Note the steel tracks in the floor for moving equipment around the building. The coal extractor swings back and forth, ripping coal from the ground and throwing it on a conveyor belt to be burned a few miles away. This picture tells half the story about the size of half of the complex. For Port Arthur, it’s average, but this would be a fantastically large elevator if it were anywhere else! The former express concourse, as seen in 2005. One of my favorite visual feature of grain elevators, especially big ones, is how they repeat. Fire doors separate the buildings. The batch tag specifies some of the technical properties of the silk worked here. These were some of the most attractive shops of all the mines in the area. It’s no wonder Hanna Mining wanted to use them as their center of operations in the Iron River district. Looking at the boarded exterior of the newer area of the orphanage from its 1914 section.