IMPROVEMENTS IN FURNACES OR FIRE-PLACES TO FACILITATE HEATING THE AIR SUPPLIED THERETO
Year: 1880

page_text: LETTERS PATENT to George Love, the younger, of Malton House, Lanchester,
in the County of Durham, for an Invention of "IMPROVEMENTS IN
FURNACES OR FIRE-PLACES TO FACILITATE HEATING THE AIR SUPPLIED
THERETO."
PROVISIONAL SPECIFICATION left by the said George Love at the Office
of the Commissioners of Patents on the 3rd September 1880.
GEORGE LOVE, the younger, of Malton House, Lanchester, in the County of
Durham. "IMPROVEMENTS IN FURNACES OR FIRE-PLACES TO FACILITATE HEATING
THE AIR SUPPLIED THERETO."
The object of the Invention is to utilize the waste heat given off from the
combustion of fuel in the fire-place, for the purpose of heating the air supplied to
the fire for the production of combustion, whereby economy of fuel is effected.
In carrying my improvements into effect, a flue or flues for the conduct of the
air to support combustion of the fuel in the fire-place is formed around the fire
chamber, and so as to open into an ash-pit capable of being closed under the fire-
bars, when fire-bars are used, and also by side passages through suitable gratings to
the fuel in the fire-place, just above the fire-bars.
By thus arranging this flue or these flues around the casing of the fire chamber,
the surplus or waste heat from the combustion of the fuel in the fire chamber
is concentrated and utilized to heat the air in its passage to support combustion.
Sliding or other doors are provided to regulate the direction of the current
or currents of air, as well as for closing and giving access when required to the
ash-pit.

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 shows by a front view; Figure 2 by a horizontal section through the
lines (1) of Figure 1; Figure 3 represents a vertical section through the lines
(2), (2), of Figure 2, and, Figure 4 represents a vertical section through the lines
(3), (3), of Figure 3, an arrangement of furnace or fire place with flue for the conduct
of air to be heated in its passage to the fire, adapted to carry out my improvements.
In each of the Figures the same letters are employed to indicate corresponding
parts; a, a, is the fire chamber; b is the flue by which atmospheric air admitted by
any suitable passage, as at c, is conducted around or in close proximity to the fire
chamber a, and in the direction indicated by the arrows, until that air is discharged
into the ash pit d, to pass up between the bars e supporting the fuel in the fire
chamber a, whilst a portion of that air is admitted through the side bars or
gratings, also to the fuel in the fire place a. The ash pit d is closed by the
doorg or otherwise, so as to be capable of being opened when required, and a
sliding door may also be employed to close the passage of air to the fire through
the gratings or bars f. The surplus or waste heat from the fuel in the fire chamber a.
thus serves to heat the air in its passage through the flue b to the fire in the fire
chamber a; h indicates the fire door, and i, i, are covers to the poker holes therein;
j,j, are feed passages for the supply of fuel to the fire chamber a, and k, k, are covers
to close these passages j, j.
The bars and gratings may be made either of iron or perforated fire clay.
I have thus far described my Invention as applied to a furnace or fire place with
bars to support the fuel in the fire chamber.
In Figure 5 I have shown part of a front view, and in Figure 6 part of a vertical
section of an arrangement of furnace or fire place in which the fuel in the fire
chamber a is supported on a hearth without supporting bars; Figure 7 is a horizontal

page_text: section taken through the lines 4, 4, of Figure 5, and Figure 8 is a transverse
vertical section taken through the lines 5, 5, of Figure 6. The section Figure 6 is
taken through the lines 6, 6, of Figures 7 and 8. In each of these Figures the
same letters are employed to indicate corresponding parts to those already described
in the previous Figures.
Having thus described my improvements, and means which I adopt in carrying
the same into effect, I would have it understood that I do not confine myself to
the precise arrangements of parts shown and described, as the same may be varied
without departing from the peculiar character of my Invention, but what I do
claim is, the improvements in furnaces or fire-places, whereby the air is heated
in its passage to the fuel in the fire-chamber, in manner substantially as described.
In witness whereof, I, the said George Love, junior, have hereunto set my
hand and seal, this Twenty fifth day of February, in the year One thousand
eight hundred and eighty one.
GEORGE LOVE, JUNR. (L.S.)