IMPROVEMENTS IN CERTAIN DESCRIPTIONS OF STOVES
Year: 1838

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
EARLE HUXLEY, of Marlborough Street, JOHN EARLE HUXLEY, junior, of the
same place, and JOHN OLIVER, of Dean Street, all in the County of Middlesex,
Stove Makers, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent, under the Great Seal of Great Britain, bearing date at
Westminster, the Thirty-first day of August, in the second year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the
said John Earle Huxley, John Earle Huxley, junior, and John Oliver, Her
especial licence, full power, sole privilege and authority, that we, the said John
Earle Huxley, John Earle Huxley, junior, and John Oliver, our exors, admors,
and assigns, or such others as we, the said John Earle Huxley, John Earle
Huxley, junior, and John Oliver, our exors, adñiors, and assigns, should at
any time agree with, and no others, from time to time and at all times
during the term of years therein expressed, should and lawfully might make,
use, exercise, and vend, within England, Wales, and the Town of Berwick
upon Tweed, our Invention of "IMPROVEMENTS IN CERTAIN DESCRIPTIONS OF
STOVES," in which said Letters Patent is contained a proviso that we, the said
John Earle Huxley, John Earle Huxley, junior, and John Oliver, or one of
us, shall cause a particular description of the nature of our said Invention,
and in what manner the same was to be performed, to be inrolled in Her said
Majesty's High Court of Chancery within six calendar months next and
immediately after the date of the said in part recited Letters Patent, as in
and by the same, reference being thereunto had, will more fully and at large
appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, we, the said
John Earle Huxley, John Earle Huxley, junior, and John Oliver, do hereby
declare the nature of our Invention, and the manner in which the same
is to be performed, are fully described and ascertained in and by the follow-
ing statement thereof, reference being had to the Drawing hereunto annexed,
and to the figures and letters marked thereon, that is to say:-
Our Invention relates to such description of stoves as are provided with
means of regulating the degree of combustion, and our Invention consists,
first, of apparatus for regulating the temperature or quantity of combustion
which shall go on in the stoves to which such apparatus may be applied; and
our Invention, secondly, consists of certain modes of constructing the fire box
and ash box of such stoves. And in order to give the best information in our
power we will describe the Drawing hereunto annexed.
DESCRIPTION OF THE DRAWING.
Figures 1 and 2 represent tubes of glass, iron, or other suitable material,
with one end open and the other closed; the upper end of the inner tube is
closed with a metal cap, having a screw valve passing through it, for the
purpose of admitting air when required, see Figure 3, and the other end is
reduced in diameter, as shewn in the Drawings, about one-third of its length.
The tubes may be of any suitable dimensions, but we consider the most con-
venient size to be as follows, the outer tube about twelve inches long and one
inch diameter. The outer tube is supplied to about one-fourth of its depth
with quicksilver, oil, or other suitable fluid, but quicksilver we consider best
for the purpose. The inner tube being inverted into the quicksilver, and the
screw valve opened to admit air, will sink to the bottom of the outer tube,
when the valve being screwed down quite close, the regulator will be fit for use.
The regulator may be fixed either inside or outside of the stove. When the
stove is heated, the air confined by the quicksilver in the inverted tube will
expand, and by its expansive force will lift the tube more or less in proportion
to the degree of heat which may be communicated to it, as shewn at Figure 4,
and may thereby be made to open and shut a valve or air passage by means of
levers or connecting rods, as shewn at Figures 1 and 2. The apparatus,
Figure 1, acting directly to the connecting rod of the valve, and the apparatus,
Figure 2, acting through the intervention of a lever, by which greater capa-
bility and nicety of regulation is obtained.
We would remark that we do not confine ourselves to any particular con-
struction of stove, so long as they are suitably arranged for regulating the
combustion by opening and closing air ways, this part of our Invention not

page_text: relating to the construction of the stoves, but to the apparatus employed for
regulating the extent of combustion.
Another improvement is in the construction of the fire box and ash box of
such stoves, by which the undue admission of air is prevented between the
brick lining and the iron case of the fire box, and by which the construction is
simplified. Figure 5 is a vertical section of a stove having this part of our
Invention applied thereto. Figure 6 is a plan in section of a similar stove.
Figure 7 is a section of part of a stove in elevation; in this case the fire box is
of iron, and is not lined with fire brick, as is the case in Figures 5 and 6.
A, B, is a quadrangular box of iron, open at the top. E is a loose plate,
fitted into the box A, B, resting upon stops about two inches below the top
edge. In this plate E is an opening of suitable size, with a rim F about
two inches deep, which rim forms a support for the fire bars at the bottom of
the fire box. Upon the plate E, between the rim of the opening F and the
side of the box A, B, cement is to be placed, upon which the fire box, formed
either of brick, stone, or iron, is to be bedded, which may be easily renewed at
any time when burnt out. The box A, B, may be cylindrical, or of any other
required form, and will of course have the usual openings for the admission of
air, also for removing the ashes.
Having thus described the nature of our Invention, we would remark that
what we claim is, first, the mode of constructing the apparatus for regulating
the combustion of stoves herein described; secondly, we claim the mode of
combining the fire box and ash box, as shewn at Figures 5, 6, and 7.
In witness whereof, I, the said John Earle Huxley, have hereunto set my
hand and seal, this Twenty-eighth day of February, in the year of our
Lord One thousand eight hundred and thirty-nine.
Arn
JOHN EARLE (L.S.) HUXLEY.
DE IT DEMEMBE that on the Twenty sighth dow of Bohm