It was used as engineering manufacturing company that produced nuts and bolts, and other fittings. How do I know this? My old man knew the boss and arranged for me and my brother to have a holiday job there during the school Easter hols of 1969; It was arranged that I could use some of the facilities to finish off my A'Level Engineering project - a racing kart (some folks call them go-karts but this was a serious bit of kit). I bent the tubular chassis there on their pipe bending machine and welded it together with their oxy-axcetelene gear ... the school didn't have this type of tackle. Anyway, what i recall was banks of multi-chuck automatic machines producing bolts in their thousands, turning the hexagonal bar stock to size, threading and then parting-off ... the finished items cascaded into metal bins for fork lifting away. Whilst I worked on my kart my brother got the job of stripping the asbestos lagging off three (it might have been two ... memory fade) huge boilers using a hammer, saw and crowbar. This was 1969 and well before H&S at Work Act ... no protective gear apart from a mask and dust everywhere. So these boilers play into baths theory. I can't recall the name of the firm.