IMPROVEMENTS IN THE CONSTRUCTION OF TUYERES
Year: 1862

page_text: LETTERS PATENT to Henry Lee Corlett, of Inchicore, in the County of.
Dublin, Associate of the Institution of Civil Engineers, for the Invention
of "IMPROVEMENTS IN THE CONSTRUCTION OF TUYERES."
PROVISIONAL SPECIFICATION left by the said Henry Lee Corlett at
the Office of the Commissioners of Patents, with his Petition, on the
31st October 1862.
I, HENRY LEE CORLETT, of Inchicore, in the County of Dublin, Associate of
the Institution of Civil Engineers, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF TUYERES," to be as
follows:-
The tuyere is formed with an inner shell, through which the air is forced,
and an outer shell, between which and the inner shell is an annular water
space; this annular water space is divided by two partitions running longi-
tudinally from the back of the tuyere to nearly the front or nozzle end, leaving
a sufficient space there for the heated water to circulate and ascend from the
lower to the upper chamber thus formed by the partitions, in the annular water
space before described. By these means water is made to circulate con-
tinuously all through the tuyere 'in such a manner as to prevent the possibility
of any deposit taking place, thus preserving the tuyere from the action of the
fire, and ensuring a greater amount of durability than has hitherto been
attained. The water is supplied to the lower chamber from a cistern, to
which it may be returned after it has passed through the upper chamber; or
if preferred the supply of water may be conducted to the tuyere by a pipe, and

page_text: allowed after circulating through both chambers of the tuyere to run to
waste.
The water heated as described may be utilized for the purpose of heating
buildings or apartments by being led to the flow pipe of a hot water circulating
apparatus, a suitable return pipe being connected with the lower chamber
of the tuyere, which in this case will become the boiler of the hot water
circulating apparatus.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henry Lee Corlett in the Great Seal Patent Office on
the 19th March 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
LEE CORLETT, of Inchicore, in the County of Dublin, Associate of the
Institution of Civil Engineers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirty-first day of October, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-sixth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Henry Lee Corlett, Her special license that I, the
said Henry Lee Corlett, my executors, administrators, and assigns,
or such others as I, the said Henry Lee Corlett, 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 THE CONSTRUCTION OF TUYERES,"
upon the condition (amongst others) that I, the said Henry Lee Corlett, 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 Henry Lee Corlett, do hereby
I 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 accompanying Sheet of
Drawings, and to the letters and figures marked thereon, that is to say :-

page_text: My said Invention relates to an improvement in tuyeres of the kind known as
"water tuyeres," for smith forge fires, cupolas, furnaces, and all purposes where
air is introduced into fire to accelerate combustion, the water being by means
of my Invention forced to circulate in a continuous stream through the tuyere
in obedience to the law, causing the heated particles of water to ascend to the
surface or summit level of any body of water subjected to the action of heat.
The circulation and continuous flow of the water prevents the deposit of any
foreign matter in the water spaces of the tuyere, which is thus more effectually
preserved from the action of the fire than has hitherto been the case.
The tuyere, which may be connected in the ordinary manner with the water
supply, is formed with an inner shell, constituting the usual air passage,
between which inner shell and the outer shell is an annular water space, which
is divided by two or more partitions placed longitudinally, extending so far as
in practice may be found desirable from the back in the direction of the front
or nozzle end of the tuyere, a space or opening being left there to make a
junction between the chambers formed in the annular water space of the
tuyere, by means of the partitions already described; or, if preferred, the
partitions, or either of them, may be extended to the nozzle or front end of
the tuyere; or the opening or passage connecting the lower with the upper
chamber or chambers may be placed in any part of the partitions, already
described.
And in order that my said Invention of improvements in the construction
of tuyeres may be properly understood, I shall now describe the several
illustrative Figures on the explanatory Sheet of Drawings which I have
hereunto appended, for the purpose of shewing how my improvements may be
carried out in practice, similar letters indicating similar parts in all the
Figures, that is to say:-
Figure 1 on the accompanying Sheet of Drawings is an end elevation,
shewing the external appearance of my improved tuyere, with only two
partitions attached to a water tank and blast pipe; and Figure 2 is a section
of same, through centre of the tuyere, tank, and blast pipe.
A is the tuyere ;
B, the water tank; and C, the blast pipe and air passages.
Figure 3 is a side elevation of the water tank, and a transverse section of
the tuyere.
Figure 4 is partly an end view and partly a transverse section of the tuyero
detached from the water tank; and Figure 5 is a longitudinal section of
the tuyere through the partitions, dividing the lower and upper water spaces
or chambers.
In Figures 2, 3, 4, and 5, G is the inner and the outer shell the

page_text: tuyere; and D, D', is the annular water space, divided into a lower and
upper chamber by the partitions E; E, which partitions extend from the back
of the tuyere to near the nozzle at F, where an annular space connects the
upper chamber D with the lower chamber D¹.
Figures 6 and 7 shew the ordinary arrangement of valve for supplying and
.cutting off the blast.
The arrows in Figure 2 indicate the course taken by the water in circulating
through the tuyere and tank. The water enters the lower water space or
chamber D, and when heated passes through the annular space F into the
upper water space D, through which it ascends, and is returned to the tank B,
,or if preferred it may be utilized for heating buildings or other purposes, or
allowed to run to waste.
Having now described and particularly ascertained the nature of my said
Invention, and the manner in which the same is or may be used or carried
into effect, I would remark, in conclusion, that what I observe to be novel
and original, and therefore claim as the Invention secured to me by the
herein-before in part recited Letters Patent is,-
"
First, the general arrangement and construction of tuyeres, as herein-before
described, and in the manner delineated in the accompanying Drawings,
whereby the tuyeres are preserved from the injurious action of the fire.
Second, the partitions dividing the water spaces into two or more chambers
as herein-before described, and in the manner shewn in the accompanying
Drawings.
Third, connecting the lower with the upper chamber or chambers, as
herein-before described, and in the manner shewn in the accompanying
Drawings.
In witness whereof, I, the said Henry Lee Corlett, have hereunto set
my hand and seal, this Sixteenth day of March, One thousand eight
hundred and sixty-three.
HENRY LEE CORLETT. (L.S.)
Signed, sealed, and delivered by the
said Henry Lee Corlett in the
presence of
HENRY WANSEY,
50, Moorgate St., London,"
Solr.