Improvements in or relating to Domestic Fire-places.
Year: 1898

page_text: Date of Application, 14th Oct., 1898
1000
4000
PROVISIONAL SPECIFICATION.
Improvements in or relating to Domestic Fire-places.
I, JOHN THOMAS ROBINSON, of Victoria Buildings, Girlington, Bradford, in
the County of York, Engineer, do hereby declare the nature of this invention to
be as follows:
This invention relates to bricks or blocks for insertion in the fuel containers
or on the grates of domestic fire-places. The object of the invention is to
reduce the consumption of the fuel to a minimum by causing the heat to be
radiated into the room in a novel way.
The essential feature of the invention is the special or peculiar form or con-
formation of the fire-bricks or blocks, so as to afford the greatest possible amount
of heat radiating power. For this purpose I construct or manufacture the fire-
bricks or blocks, of fire-clay or other suitable non-metallic heat radiating
material, of a shape somewhat resembling a wedge, placed upon one of its sides,
and with the sharp end towards the front. The end which is adjusted in proxi
mity to the back of the fire-place, and also that portion contiguous to the side
thereof, are preferably curved or partly hollowed out. By this construction,
when one of my fire-bricks or blocks is arranged on either side of the fuel con-
tainer in domestic fire-places, the slanting or sloping face of each of the wedge
shaped bricks or blocks causes the heat absorbed from the burning fuel by
such bricks or blocks, to radiate in waves or lines crossing each other and pene-
trating into the room in an outwardly spreading or projecting manner. By
these means the amount of fuel requisite to produce a given heat is reduced
to a minimum.
Improvements in or relating to Domestic Fireplaces.
I, JOHN THOMAS ROBINSON, of Victoria Buildings, Girlington, Bradford, in
the County of York, Engineer, do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:
--
My invention relates to fixed or detachable firebricks or blocks A, for inser-
tion in the fuel containers, or on the grates of domestic fire-places C. The
object of the invention is to reduce the consumption of the fuel to a minimum.

page_text: by reducing the area of fireplace in the rear D, & by causing the heat to be
radiated into the room, in a novel way. Fig. 2, X. The essential feature of the
invention, is the special or peculiar form or conformation of the fire-brick or
block A, so as to afford the greatest possible amount of heat radiating power.
For this purpose I construct or manufacture the fire-bricks or blocks, of fire-
clay or other suitable non-metallic heat radiating material, of a shape somewhat
resembling a wedge, placed upon one of its sides, & with the sharp edge towards
the front. The end which is adjusted in proximity to the back of the fire-
place D and also that portion contiguous to the side thereof, are preferably
curved, or partly hollowed out.
Fig. 1, on drawing, gives a prospective view of a fuel container, or fireplace,
with the firebricks or blocks in position A. The diagonal surface which radiate
the heat rays into the room, (as X Fig. 2), is also preferably fluted or corru-
gated. Fig. 1, Aa. By this construction, when one of my firebricks or blocks
is arranged on either side of the fuel container, in domestic fireplaces, the dia-
gonal slanting or sloping face, Aa; of each of the wedge shaped bricks or blocks,
causes the heat absorbed from the burning fuel, by such blocks, to radiate in
waves or lines crossing each other, and penetrating into the room, in an out-
wardly spreading or projecting manner, as Fig. 2, X. By these means, the amount
of fuel requisite to produce a given heat, is reduced to a minimum.
Fig. 2, is a plan of a fireplace or fuel chamber, with the firebricks or blocks
in position, A; the diagonal surfaces a, a; and the way in which they cause the
heat to be radiated into the room, as indicated by the arrows X. D also shews
the manner in which the firebricks reduces the area of fuel-chamber-or fireplace,
in the rear.
The firebricks or blocks A, are detachable and adjustable, and can be removed
if necessary, for cooking' or other purposes. If desirable they can be fixed
permanently.
Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
-
1st. An improved fixed or detachable firebrick or block, A, of a suitable con-
figuration, adapted to absorb the heat, from the fuel in the fireplace E, and
radiate the heat the heat thus obtained into the room, in a novel way, X.
2nd. By means of the diagonal surface in proximity to fuel a, which reduces
the area of fuel space in the rear D), the amount of fuel requisite to produce
a given heat, is reduced to a minimum.
3rd. The improvements in domestic fireplaces, whereby the aforesaid firebricks
or blocks are adjustable, and can be removed if necessary, for cooking or other
purposes, as herein before set forth, described and illustrated.
Dated this 13th day of July 1899.