My heavens, was he asked that?
It is a pump run off the old steam recip engines crossheads.
They are designed to to handle air and condensate from a condensor.
I've seen one 25 years ago in a museum.
oh God, I just realized it is more like 28 years :shock:
Here is a little:
http://homepage.ntlworld.com/howard.v.m ... t_well.htm