IMPROVEMENTS IN THE CONSTRUCTION OF STOVE PIPES FOR BLAST AND OTHER FURNACES
Year: 1872

page_text: LETTERS PATENT to Robert Hutton, of Baxtergate, Whitby, in the.
County of York, Engineer, for the Invention of "IMPROVEMENTS IN
THE CONSTRUCTION OF STOVE PIPES FOR BLAST AND OTHER FURNACES."
PROVISIONAL SPECIFICATION left by the said Robert Hutton at the
·
Office of the Commissioners of Patents, with his Petition, on the
30th July 1872.
I, ROBERT HUTTON, of Baxtergate, Whitby, in the County of York,
Engineer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE CONSTRUCTION OF STOVE PIPES FOR BLAST AND OTHER
FURNACES," to be as follows:-
The object of this Invention is to obtain a greater heating surface in
the stove pipes of blast and other furnaces than can be obtained by the
usual mode of construction.
In constructing stove pipes according to my Invention I make
diagonal passages for the gas or air to pass through; these diagonal
passages lead from the inside to the outside of the stove pipe, which is
cast in one piece as usual.
The number of diagonal passages and the angle at which they are set
can be varied.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Robert Hutton in the Great Seal Patent Office on
the 24th January 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
HUTTON, of Baxtergate, Whitby, in the County of York, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirtieth 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 Robert Hutton, Her special licenco
that I, the said Robert Hutton, my executors, administrators, and assigns,
or such others as I, the said Robert Hutton, my executors, admi-
nistrators, 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 THE Con-
STRUCTION OF STOVE PIPES FOR BLAST AND OTHER FURNACES," upon the condition
(amongst others) that I, the said Robert 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.
NOW KNOW YE, that I, the said Robert Hutton, 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 (that is to say) :-
The object of this Invention is to obtain a greater heating surface in
the stove pipes of blast and other furnaces than can be obtained by the
usual mode of construction.
In constructing stove pipes according to my Invention I make
diagonal passages for the gas or air to pass through; these diagonal
passages lead from the inside to the outside of the stove pipe, which is
cast in one piece as usual.

page_text: The number of diagonal passages and the angle at which they are set
can be varied.
And in order that my Invention may be fully understood and readily
carried into operation, I will proceed to describe the accompanying Sheet
of Drawings, reference being' had to the figures and letters marked
thereon.
Fig. 1 is a front elevation, and Fig. 2 a side view of a stove pipe for a
blast furnace, constructed according to my improvements.
The pipe is of a horse-shoe form as usual, but instead of being a plain
bent pipe as now customary, it is provided with diagonal passages
marked a, a, and b, b; the passages a, a, leading from the inside to the
outside, and the passages b, b, passing transversely through the pipe;
these diagonal. passages produce a greater heating surface, and con-
sequently heat the air and gases passing through them more effectually
and economically than heretofore. The passage c may also be made at
the bend of the pipe. The whole pipe with the metal round the passages
is cast in one piece.
I wish to remark that the above is only given as an illustration of one
mode of constructing my improved stove pipes, and that I do not intend
to limit myself to the shape of the pipe, as my Invention is applicable to
stove pipes of every description, and the number of the passages a and b
and the angle at which they are set can be varied according to the
dimensions of the stove pipes and the particular purpose for which they
are intended, the object of the said diagonal passages being to increase
the area of the heating surface.
I declare that I claim as my Invention the application of diagonal
passages to stove pipes in the manner and for the purpose described.
In witness whereof, I, the said Robert. Hutton, have hereto set
my hand and seal, this Twenty-second day of January, One
thousand eight hundred and seventy-three.
ROBERT HUTTON. (L.S.)