On Thu, 17 Feb 2005 17:08:41 +0000 (UTC), wrote:

As that page hints at, the difference between design and implementation
wasn't just silliness on the builder's part: the original design was, if
not unimplementable, certainly a royal PITA:

The original design was fine - this is a relatively common design and
was very popular in the Victorian era. Look at the roof of an old
swimming baths sometime.

The trick is to use swaged rods in short sections and long tube nuts.
The rods have thick ends formed onto them and the threaded portion is
thicker than the middle. The nuts only have to be screwed on a foot at
at time.

--
Smert' spamionam