Re: Why the use of American valves
They would have been nice and clean. It was in the '50s I lived and worked in Kent, as we were KB agents I use to visit the factory fairly often with under guarantee work.
The valve factory used vast amounts of liquid oxygen for some reason and I remember being there and seeing it being discharged from a tanker, the pipe was completely covered with frost and it looked as though it was snowing underneath it.
I also used to maintain the PA system at the Vegetable parchment mills in St Mary cray.
Peter
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