IMPROVEMENTS IN THE HEATING OF MALT KILNS AND OTHER APPARATUS OF A SIMILAR CHARACTER, AND THE WARMING OF THE INTERIORS OF CHURCHES AND OTHER LARGE BUILDINGS, WHICH INVENTION IS ALSO APPLICABLE TO CAUSING THE CONSUMPTION OF SMOKE FROM OPEN FIRE-PLACES
Year: 1867

page_text: PROVISIONAL SPECIFICATION left by Thomas Prideaux at the Office of
the Commissioners of Patents, with his Petition, on the 30th January
1867.
I, THOMAS PRIDEAUX, of Sheffield, in the County of York, Hotel Keeper,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN THE
HEATING OF MALT KILNS AND OTHER APPARATUS OF A SIMILAR CHARACTER, AND THE
WARMING OF THE INTERIORS OF CHURCHES AND OTHER LARGE BUILDINGS, WHICH
INVENTION IS ALSO APPLICABLE TO CAUSING THE CONSUMPTION OF SMOKE FROM OPEN
FIRE-PLACES," to be as follows:-
For the purpose of heating a malt kiln or other such apparatus, or warming
the interior of a church or other large building, I arrange an opening in the
wall of the kiln or building through which air may pass from the external
atmosphere to the interior of such kiln or building, such air being conducted to
the interior thereof by a tube or flue commencing at the opening and passing
round or nearly round the interior of the lower part of the kiln or building,
this flue finally terminating at a grating through which the air enters the body
of the kiln or building. This air is heated in its progress to the grating by a
second tube or flue, smaller than and placed inside the first; this inner tube
or flue communicating at one end with a furnace and at the other with
a suitable chimney, and the heated air and products of combustion passing
from the furnace through such inner tube or flue in their way to the chimney,
thereby heating such inner tube or flue, and consequently the air in the outer
tube or flue which surrounds it. The arrangement is such that the portion of

page_text: the inner tube or flue which is next the grating of the outer flue is hotter
than the portion next the opening mentioned above, and the result is that a
constant supply of cold air passes into the external flue from the outside of
the kiln or building, and being heated by the inner flue is finally discharged
in a heated state through the grating into the body of such kiln or building.
Patent
I propose to use a furnace such as described in the Specification of
of the First of January 1866, No. 5, but a furnace otherwise constructed
might be used.
my
In applying the Invention so as to effect the consumption of smoke in an
open fire-place I construct in the chimney of such fire-place a tube or flue,
open at one end to the external atmosphere, or to the atmosphere of the room
or building in which the fire-place is situated, and at the other end com-
municating with a chamber constructed at the back or sides, or back and
sides of the fire-place, this chamber being provided with a grating or perforated
plate at the part next-the-fire. Air thus passes into the tube or flue at its
open end, and thence into the chamber, being heated in such passage, and
issues through the grating or perforations into the fire-place among and above
the burning fuel, and causes the smoke arising from such fuel to be very
effectually consumed.