IMPROVEMENTS IN STEAM BOILER AND OTHER FURNACES
Year: 1872

page_text: LETTERS PATENT to Richard Hutton, of Eyre Street, Sheffield, in
the County of York, Engineer, for the Invention of "IMPROVEMENTS
IN STEAM BOILER AND OTHER FURNACES."
PROVISIONAL SPECIFICATION left by the said Richard Hutton at
the Office of the Commissioners of Patents, with his Petition, on
the 22nd July 1872.
I, RICHARD HUTTON, of Eyre Street, Sheffield, in the County of
York, Engineer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN STEAM BOILER AND OTHER FURNACES," to be as follows:-
This Invention consists,-
:
i
Firstly. In constructing such furnace. doors with the bottom part
inclined or bent outward so as to leave a space betwixt the said door
and the dead plate when the door is shut, and in the application of an
adjustable deflecting plate to the inside of the door for regulating the
amount of atmospheric air to be admitted to the furnace, and deflecting
the same upon the fuel.
Secondly. Instead of the door being bent outward as aforesaid, it may
shut close as usual, and I form a slit or slits in the dead plate for the
admission of air, and this is to act in conjunction with the deflector:
;

page_text: Thirdly. In the construction and application of a hollow bar on each
side of the furnace open at the bottom, and having a slit or slits longi-
tudinally therein on the side towards the fuel for the admission of air to
the furnace, such slits (by preference) being formed with a downward
inclination so as to deflect the air upon the fuel.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Richard Hutton in the Great Seal Patent Office
on the 22nd January 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
HUTTON, of Eyre Street, Sheffield, in the County of York, Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-second day of July, in the year
of our Lord One thousand eight hundred and seventy-two, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Richard Hutton, Her special licence
that I, the said Richard Hutton, my executors, administrators, and
assigns, or. such others as I, the said Richard Hutton, my executors,
administrators, 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 STEAM
BOILER AND OTHER FURNACES," upon the condition (amongst others) that
I, the said Richard Hutton, 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.

page_text: plate C will come in contact with and ascend the wedge-shaped piece or
incline G, whereon the pointed end of the catch lever D will enter the
notch C³ in the said projection of the deflecting plate C, and so hold such
plate in its raised position as shewn in the Drawings, admitting and
deflecting air upon the fuel.
It will be seen that when the door is opened for the purpose of fireing
the deflecting plate will be raised at the same time, and on the door
being closed a supply of air will be admitted and deflected upon the
fuel by the self-acting means and arrangements shewn and described,
altogether independent of any attention from the fireman or attendant,
and as before stated, when it is desirable to close the passage to prevent
the admission of air, the attendant can by lifting the weighted end of
the lever D release the catch from the notch, when the deflector will
fall upon the dead plate and thereby exclude the air.
Having thus described the nature of my said Invention and shewn by
the aid of Drawings in what manner the same is to be or may be per-
formed or carried into practical operation, I would have it distinctly
understood that I do not confine or restrict myself to the precise details
in the construction or arrangement of the parts as shewn and described,
but what I claim as my Invention is,, constructing the doors for steam
boiler and other furnaces so as to leave a space at the bottom for the
admission of air, and in the application thereto of an adjustable plate
for deflecting the air upon the fuel, and for excluding it when required,
in manner substantially as herein set forth, described, and illustrated by
the annexed Sheet of Drawings.
In witness whereof, I, the said Richard Hutton, have hereunto
set my hand and seal, this Twenty-first day of January, in the
year of our Lord One thousand eight hundred and seventy-three.
RICHARD HUTTON. (L.S.)
Witness,
HENRY F. E. HOLMES,
of 22, Havelock St.,
Sheffield,
Brewers' Accountant.
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