Posted by murrisk on November 06, 2000 at 16:53:09:
In Reply to: The Old Infirmary posted by Tempus Fugit on November 06, 2000 at 10:09:57:
I had quite forgotten about those caravans. Often
the work crews brought rock crushers along with
them. These were used to crush coarse road aggregate
to the required fineness. I think the actual crushing
was done by nested screens which rotated in opposite
directions.