IMPROVEMENTS IN STOVES FOR HEATING APARTMENTS, HALLS, AND OTHER LIKE PLACES
Year: 1872

page_text: PROVISIONAL SPECIFICATION left by Thomas Crisell Blyth at the
Office of the Commissioners of Patents, with his Petition, on the
16th November 1872.
I, THOMAS CRISELL BLYTH, of Great Yarmouth, in the County of
Norfolk, Engineer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN STOVES FOR HEATING APARTMENTS, HALLS, AND OTHER LIKE
PLACES," to be as follows:-
This Invention relates to certain improvements in stoves or fire-places
whereby the heated products of combustion are more effectually utilized
in their passage to the chimney than heretofore, and consequently
economy in the consumption of fuel is effected, and consists of certain
peculiar arrangements of dampers or valves and air tubes in combination
with a heating chamber, through which cold air is caused to traverse
and become highly heated and finally re-enter the apartment.
According to this Invention I construct a chamber of metal or of
other suitable material and extending behind the ordinary back and
cheeks and over the top of the stove; into this chamber the heated

page_text: products of combustion are caused to enter through openings made
either in the sides or back of the stove immediately above the fire or fuel
chamber, and are then made to travel in a zig-zag or serpentine direction
along projecting shelves composed of metal, or of other suitable material,
and by preference made hollow for the admission of air to be heated.
The products of combustion after traversing these projecting shelves,
which I prefer to arrange in an inclined position, pass over a horizontal
plate near the top of the heating chamber, and finally escape through
a short tube or flue formed thereon into the chimney. A tube or series
of tubes arranged either vertically or horizontally, or both vertically and
horizontally, are fitted in the interior of this chamber, over the exterior
surface of which tubes the heated products of "combustion pass and
thereby heat them.
Openings are made in the lower portion of the front of the stove,
through which openings cold air from without enters and thence into
the lower open ends of the vertical tubes before referred to (which tubes
may project below the bottom of the heating chamber) and after passing
through these tubes finally enter the apartment in a highly heated
condition through openings made in the upper part of the front of
the stove.
A sliding plate or damper is fitted immediately above the openings
through which the products of combustion pass into the heating
chamber for the purpose of conducting such products of combustion
thereto, this plate may however be removed when required. A hinged
door or flap is fitted to the fire-place, as in ordinary register stoves,
which door may be opened when desired to allow the heat to pass direct
into the chimney should the apartment become too hot; a valve or
damper fitted in the short tube at the top of the heating chamber before
referred to may also be opened to allow the heated products of com-
bustion to pass.
Doors are provided in the sides or other convenient parts of the stove
to facilitate the cleaning of the tubes and chimney.
When the air tubes are arranged in a horizontal position they may be
made to pass through the heating chamber and open into a space
between such chamber and the back of the recess in which the stove is
fixed. The cold air entering at the bottom of the front of the stove

page_text: enters this space and passes into the apartment through the horizontal
tubes, such air having become heated during its passage. The air inlets
and tubes may be provided with valves to regulate the ingress and egress
of the air as desired. In some cases a plate may be fixed in the flue to
prevent the products of combustion passing up the chimney.