[Bell Historians] Adjustable Louvres

[Nick Bowden]

From: Robert Lewis
Going through RW correspondence from 100 years ago, I was wondering
if there are any examples of towers that do (or did), in fact, have
adjustable louvre boards "operated like venetian blinds".

I imagine that any such installation would be highly prone to
mechanical failure and would be quite difficult to install, operate
and maintain, not to mention the exterior aesthetic considerations -
but it is an interesting idea.

Can anyone enlighten me please?
RAL
>>

I seem to recall Rawtenstall, Lancs had such a device when I rang there in 
1990.
Nick



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