IMPROVEMENTS IN THE CONSTRUCTION OF FURNACES FOR HEATING AND DRYING
Year: 1875

page_text: 77
13
PROVISIONAL SPECIFICATION left by the said Richard Hill. at
the Office of the Commissioners of Patents, with his Petition, on
the 8th July 1875.
quiloung he
3246
I, RICHARD HILL, of Middlesbrough-on-Tees, in the County of York,
Engineer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE CONSTRUCTION OF FURNACES FOR HEATING AND DRYING,"
to be as follows:
-
igida
¡According to this Invention instead, of constructing furnaces for
heating and drying, with a fire-box at: only one end thereof ash at i
present, I place a fire-box at both ends of the furnace, the flames from:
which fire-boxes converge towards the centre of the furnace, where

page_text: "
the pass into suitable flues placed at the top thereof and thence to the
chimney. A partition or mid-feather is placed traversely across the
centre of the furnace in order to prevent the flames from the separate
fires coming into contact with one another, but which partition is pro-
vided with a suitable aperture or apertures for the passage of the articles
under treatment. A tube or tubes of fire-clay or other suitable sub-
stance and of any desired length is or are placed longitudinally in the
furnace, and into or through which tube or tubes the articles to be
heated
or dried are placed or drawn. The tube or tubes is or are, by
preference, perfectly closed except at the ends, which may be provided
with suitable doors for the entrance and exit of the articles under treat-
ment; but in some cases it may be found desirable to let the flames
from the fires come into. actual contact with the articles in the tubo
or tubes, in which case the latter is or are left open at the top, or the
tube or tubes may be dispensed with.
By means of this Invention an uniform degree of heat is obtained
throughout the entire length of the furnace, which latter may be of
any desired dimensions; thus enabling a greater length of metal or
other substances to be heated or dried at one time than is possible by the
furnaces hitherto employed.
1
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Richard Hill in the Great Seal Patent Office on
the 8th January 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
HILL, of Middlesbrough-on-Tees, in the County of York, Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing dato the Eighth day of July, in the year
of our Lord One thousand eight hundred and seventy-five, in the
thirty-ninth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Richard Hill, Her special
licence that I, the said Richard Hill, my executors, administrators,
and assigns, or such others as I, the said Richard Hill, my executors,
administrators, and assigns, should at any time agree with, and no

page_text: 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 "IMPROVEMENT IN THE
CONSTRUCTION OF FURNACES FOR HEATING AND DRYING," upon the condition
(amongst others) that I, the said Richard Hill, my executors or
administrators, by an instrument in writing under 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 Richard Hill, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by
the following statement, reference being had to the Drawings here-
unto annexed, and to the letters and figures marked thereon, that is
to say :-
According to my Invention instead of constructing furnaces for
heating and drying, with a fire-box at only one end thereof as at
present, I place a fire-box a each end of the furnace, which can thus be
made of a much greater length than hitherto. The flames from the two
fire-boxes converge towards the centre of the furnace, where they pass
into suitable flues placed at the top thereof and thence to the chimney.
A partition or "midfeather" is placed transeversely across the centre of
the furnace in order to prevent the flames from the separate fires coming
into contact with one another, but which partition is provided with a
suitable aperture or apertures for the passage of the articles under
treatment. A tube or tubes of fire-clay or other suitable substance and
of any desired length is or are placed longitudinally in the furnace, and
into or through which tube or tubes the articles to be heated or dried
are placed or drawn. The tube or tubes may be perfectly closed except
at the ends which may be provided with suitable doors for the entrance
and exit of the articles under treatment; but in some cases it may be
found desirable to let the flames from the fires come into actual contact
with the articles in the tube or tubes, in which case the latter is or are
left open at the top for that purpose, or the tube or tubes may, if pre-
ferred, be dispensed with.

page_text: I will now proceed to refer to the accompanying Drawings, from
which the nature of my said Invention will be more clearly understood.
Figure 1 is a longitudinal section; Figure 2, a plan partly in section ;
and Figure 3, a transverse section of a furnace constructed according
to this Invention, with one tubo open at the top, running longitudinally
through the same. The same letters of reference indicate like parts in
all the Figures. A is the furnace; B and C are the two fire-boxes; D
is the tube; E, the partition; and F, the fluc.
By means of this Invention an uniform degree of heat is obtained
throughout the entire length of the furnace, which may be of any
desired dimensions, thus enabling a greater length or quantity of metal
or other substances to be heated or dried at one time than is possible
in the furnaces as hitherto constructed.
Having thus declared and ascertained the nature of my
said Invention
and in what manner the same is to be performed, I would observe in
conclusion that what I consider novel and original and thereforo claim
as constituting the Invention secured to me by the bercin-before in
part recited Letters Patent is, the construction and arrangement of
furnaces for heating and drying with a firebox at each end, in the
manner and for the purposes herein-before set forth and described, or
any mere modifications thereof.
In witness whereof, I, the said Richard Hill have hereunto
set my hand and seal, this Sixth day of January, in the year
of our Lord One thousand eight hundred and seventy-six.