Dear List,
I am currently drawing up survey plans of the boiler house of the Sark
Silver Mines in the Channel Islands,
constructed in 1836 to house a single boiler and widened in c.1841 to take a
second. The design of boilers
are not known. Although they should in theory be Cornish type, as the
pumping engine of 1836 was by
Harveys of Hayle, they may have been Lancashires.
The widened building has brick arched voids or possibly flues of c.40cm wide
by 1m high at ashpit level
which appear to have run around the long sides and flue ends of the boilers.
One of these connects with
the smoke flue of the 1841 alterations. At a higher level, there is a
revetted stone passage along one
long side and the flue end of the building - it is not certain whether this
was capped or open to air, but
one end of it certainly had a narrow arched entrance, c.40cm wide by 60cm
high.
Has anyone had any experience of recording such structures, or can direct me
to published drawings
of recorded examples?
Robert Waterhouse
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