Our Safety Cry If you know what BTI stands for, please leave a comment. Similar Images ...based on the tags: bokeh, cartoons, numbers, peeling-paint, safety-first, signs... A taste of Superior culture. Pipes to channel nitrose (think nitro glycerine) infused acid through the building. The east side of the boiler shop sported a platform with a control booth and heavy machine mounts. Note the door that replaces the lower section of stairs for explorers. Kat’s pretty cool. Park Insurance Agency is no longer in business, nor would you be able to dial that phone number. The control room for the whole of the plant. Sinterband here means one of the sintering lines. Temperatures, gasses, mixtures, speeds, and so on were centrally controlled here. The giant radiators in this casting shop look like a flag to me. The rear of engine bay 13… according to the heavily faded sign. In the days before a centralized fire alarm system, coded whistle blasts would warn when and where a fire broke out.