Posted by Paul (in NY) on Tuesday, May 06, 2003 at 7:47AM :
In Reply to: Truck quiz - name that firetruck posted by Tug Boat Lonnie on Tuesday, May 06, 2003 at 3:23AM :
The Ball is a presure dome to smooth out the water flow. The A. Foxes used piston pumps and without the presure dome the flow was not smooth. Others in that time period used rotary gear pumps. All forerunners of the modern centrifugal pumps.
Paul
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