Rebar Fall Guards A look straight down into the chutes were taconite pellets would dump into the dock hoppers. Rebar was a safety measure to keep workers from being buried alive, were they to slip into the holes. Related Similar Images ...based on the tags: black&white, grates, heights, rebar, squares, steel, tracks... This is the crane that would be used to lower extra-heavy bits of copper ore into the fire of the furnace. Looking from the shaft room into the room where an electric hoist would be. The sidewalks are littered with rocks. Catwalk crating, welded over the yard crane operator cab’s windows. These dump cars moved copper ore to the top of the furnaces… it’s about two stories above ground level. A burned and rusted control panel in the corner of the new hoist room. The metallic arms of the missile erector, which would stand rockets over the blast pit in the launch position. Medium Format film–cheap but excellent Fomapan 100 in a Pentax 67. I like to think of this as a giant straw, through which the factory is slowly draining the earth, leaving nothing but reinforced concrete below… I wonder if these windows were bricked after the 1950 explosion with the hopes that, if another silos blew, the people in this office would be better protected.