IMPROVEMENTS IN APPARATUS FOR WARMING AND VENTILATING
Year: 1874

page_text: LETTERS PATENT to George Eyre, of Codnor, in the County of
Derby, for the Invention of "IMPROVEMENTS IN APPARATUS FOR WARMING
AND VENTILATING.”
Sealed the 25th March 1875, and dated the 10th December 1874.
PROVISIONAL SPECIFICATION left by the said George Eyre at the
Office of the Commissioners of Patents, with his Petition, on the
10th December 1874.
I, GEORGE EYRE, of Codnor, in the County of Derby, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN APPARATUS
FOR WARMING AND VENTILATING," to be as follows:-
-
This Invention has for its object the warming and ventilating of
rooms or apartments or other places.
To carry out the object of my Invention I use apparatus substantially
of the following character:-I construct a fire-box of any suitable
material, such box being connected by suitable tube to a series of
chambers which constitute the flue. The series of chambers are con-

page_text: structed preferably of a U shape, and they are divided by partitions so
that the heated products from the fire rise to the lower compartment of
the series and circulate round to the other side, and then rise by suitable
opening into the next compartment immediately above and round to
the opposite side, and finally after circulating through the whole of the
compartments, which may be of any number, the heated products make
their exit by the chimney. On the outside surface of these chambers
I prefer to cast or secure ribs or projections so as to give greater heating
surface.
The series of chambers are encased by another chamber, which is to 1
effect the heating of the air before entering the room or apartment. The
fuel is placed in the fire-box and the heated products pass through the
series of chambers, as above described. The air to be heated rises
between the outside case and the external surfaces of the chambers,
forming the flue, and in passing through the air is heated by the heat 1
from the series of chambers and fire-box, and it then passes into the
room or apartment.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Eyre in the Great Seal Patent Office on
the 10th June 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE 2
EYRE, of Codnor, in the County of Derby, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Tenth day of December, in the
year of our Lord One thousand eight hundred and seventy-four, in
the thirty-eighth year of Her reign, did, for Herself, Her heirs and 3
successors, give and grant unto me, the said George Eyre, Her special
licence that I, the said George Eyre, my executors, administrators,
and assigns, or such others as I, the said George Eyre, my exe-

page_text: cutors, àdministrators, and assigns, should at any time agree with, and
no others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise,
and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS
IN APPARATUS FOR WARMING AND VENTILATING," upon the condition (amongst
others) that I, the said George Eyre, my executors, or administrators,
by an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said George Eyre, do hereby declare
the nature of my said Invention, and in what manner the same is to bo
performed, to be particularly described and ascertained in and by the
following statement:-
This Invention has for its object the warming and ventilating of
rooms or apartments or other places.
To carry out the object of my Invention I use apparatus substantially
of the following character:-I construct a fire-box of any suitable
material, such box being connected by suitable tubo to a series of
chambers which constitute the flue. The series of chambers is con-
structed preferrably of a U shape or approximately U shape, and they are
divided by partitions so that the heat and products of combustion from
the fire-rise to the lower compartment of the series and circulate round to
the other side, and then rise by suitable opening into the next compart-
ment immediately above and round to the opposite side, and finally after
circulating through the whole of the compartments, which may be of
any number, the heated products make their exit by the chimney. On
the outside surface of these chambers I prefer to cast or secure ribs or
projections so as give greater heating surface.
The series of chambers is encased by another chamber, which is to
effect the heating of the air before entering the room or apartment. The
fuel is placed in the fire-box and the heated products pass through the
series of chambers, as above described. The air to be heated rises
between the outside case and the external surfaces of the fire-box and

page_text: ovoUL , Figure 5, a sectional pian througu fire-box; and
Figure 4, sectional plan through the series of chambers forming the flue
through which the products of combustion have to pass.
In these Drawings the outer casing is shown as if constructed of
brickwork, but this casing may be constructed of iron or any other
suitable material. The course that the air takes for warming and venti-
lating is denoted by arrows, and that of the products of combustion
by arrows thus
The fire-box a is constructed in segments b,
which when put together form the sides, top, and bottom, including the
space for cleaning out the fire-bars. Each segment 6 has a rib or flange c
cast on it so as to form a rebate, as shown, for the next one to fit in.
Each joint thus formed is rammed with clay or other suitable material
where the heat or smoke passes from the fire-box a into the series of
chambers . The segments are made open at the top with a socket or
rebate n formed to come against the opening into the lower compart-
ment of the flues. The front and back are in separate pieces with screw
bolts and nuts d or rods and wedges passing through the segments and
screwed or wedged up. The back e is cast with ribs c¹ so as to obtain
greater heating surface. In the front are the doors f and openings for
firing and cleaning out the ashes. The fire-bars g are carried by a dead
plate at each end, and on the segments immediately under the fire-bars
are cast studs to carry the dead plates supporting the fire-bars and pieces
of fire-lump h, which are placed between the fire-bars and the inner
surface of the fire-box, either rounded or bevelled on the upper edge.

page_text: under the fire-box, which pass round the fire-box and the outer surfaces
of the series of chambers within the outer case thus coming in contact
with a large amount of heating surface; and I would here remark that I
do not limit myself to the forms or details shown by the accompanying
Drawings and herein described, as similar arrangements may be applied
to a stove open in front of the fire or burning fuel, and various other
practical modifications might be adopted without departing substantially
from the character of my said Invention.
In witness whereof, I, the said George Eyre, have hereunto set
my hand and seal, this Ninth day of June, in the year of our
Lord One thousand eight hundred and seventy-five.
Witness,
T. MORGAN,
GEORGE EYRE. (L.8.)
Secretary Inventors' Patent Right Association, Limited,
21, Cockspur Street,
Charing Cross.
37
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