IMPROVEMENTS IN WATER TUYERE IRONS OR TUYERES, AND IN THE CONSTRUCTION OF THE SAME
Year: 1878

page_text: LETTERS PATENT to Joseph Yates and George William Willford, of Sheffield,
in the County of York, for the Invention of "IMPROVEMENTS IN WATER
TUYERE IRONS OR TUYERES, AND IN THE CONSTRUCTION OF THE SAME."
Sealed the 3rd December 1878, and dated the 4th June 1878.
PROVISIONAL SPECIFICATION left by the said Joseph Yates and George
William Willford at the Office of the Commissioners of Patents on the 4th
June 1878.
JOSEPH YATES and GEORGE WILLIAM WILLFORD, of Sheffield, in the County
of York. "IMPROVEMENTS IN WATER TUYERE IRONS OR TUYERES, AND IN THE
CONSTRUCTION OF THE SAME."
These improvements relate to the construction of tuyeres having loose nozzles
and to improvements in tuyeres with loose nozzles with the object of obtaining a
constant flow of water to and from the loose nozzle.
In the first place these improvements consist in attaching the loose nozzle to the
body of the tuyere by two or more long bolts screwed into or attached to the loose
nozzle, and passing through the ordinary water way or water space of the main
body of the tuyere, and fastened to or tightened firmly up to it by means of nuts,
cotters, or similar appliances.
The nozzle and body of the tuyere will have projections and recesses, either in
the one or in the other, for the purpose of allowing the one to enter into the other to
insure a tight joint being made, or the faces of the nozzles and the bodies of the
tuyeres may be plain.
The bolts used to connect the nozzles to the bodies of the tuyeres may be cast
into the said nozzles, or may be screwed thereinto, or cottered thereto. By this
construction of tuyere the exterior of the nozzle and the body of the tuyere will be
flush or in a line the one with the other.
In the second place these improvements consist in constructing the nozzle in the
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page_text: form of a cap, either with or without projections or recesses on its face, where joined
to the main body of the tuyere, and forming the main body of the tuyere with
screwed or worm projections or recesses, and forming the cap nozzle with corre-
sponding recesses or projections, so as to fit on to and screw on to the main body of
the tuyere; this nozzle, when screwed on to the main body of the tuyere would
be water-tight, but the cap nozzle would project above the main body of the
tuyere.
In the third place these improvements consist in forming on a cap nozzle and
the body of the tuyere projections and recesses, corresponding the one with the
other, so that the projections on the nozzle will slide into the recesses in the body
of the tuyere, and on the nozzle being rotated concentrically it will be locked
firmly on to the main body of the tuyere by reason of the concentric projections on
the nozzle passing behind the concentric projections on the body of the tuyere; the
said projections and recesses can be made slightly taper so as to secure a tight joint,
and the nozzle can be prevented from sliding back by set screws, or by a wedge or
strap.
In the fourth place these improvements consist in the construction of a tuyere
with loose nozzle designed to insure a constant flow of cold water to the nozzle and
heated water away from the said nozzle.
In carrying into effect this part of the Invention tubes will be used to connect
the nozzle to the main body of the tuyere, through which said tubes water will be
conveyed through the main body of the tuyere to the nozzle; the said tubes can be
cast into the nozzle either at the extreme end thereof or cast into a flange or stay
in the water space thereof, or may be screwed into the loose nozzle instead of being
cast thereinto; at the other extremity of the tubes the main body of the tuyere will
be secured by nuts or cotters as in the case of solid bolts. This tuyere and nozzle
can be constructed so that water passes solely through the tubes, or it can be so
constructed as that water passes through the tubes and through the ordinary water
way or water space, as is the case with a tuyere and nozzle connected together
by solid bolts.
By arranging the said tubes in an upper and a lower row the water can be
made to flow to the nozzle by the under set of tubes, and away from the
nozzle by the upper set of tubes.
The nozzles and bodies of the tuyeres can be of cast iron or of any other
*suitable materials.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Joseph Yates and George William Willford in the Great Seal Patent
Office on the 3rd December 1878.
JOSEPH YATES and GEORGE WILLIAM WILLFORD, of Sheffield, in the County of
York. "IMPROVEMENTS IN WATER TUYERE IRONS OR TUYERES, AND IN THE 4
CONSTRUCTION OF THE SAME."
This Invention relates to improvements in the mode of securing the loose nozzles
to the bodies of water tuyere irons or tuyeres.

page_text: This Invention consists firstly in the construction of a tuyere, to the main body
of which the loose nozzle is attached in the manner shown in Figure 1, Figure 2,
and Figure 3 of the accompanying Sheet of Drawings.
Figure 1 shows a longitudinal section (as taken through the dotted line A, B,
Figure 2 and Figure 3) of a complete tuyere with a loose nozzle.
Figure 2 is a back end view in elevation of the loose nozzle; and Figure 3 is a
back end view of the body of the tuyere in elevation.
The loose nozzle is made with three flanges or stays, connecting the outer and
inner case, as shown in Figure 1 and Figure 2.
The body of the tuyere and the nozzle are formed with projections and recesses,
where they are joined together, the one fitting into the other, for the purpose of
making an air-tight and water-tight joint, the said projections and recesses being of
an angular, circular, or other suitable form. The nozzle and body of the tuyere are
secured together by three bolts, as shown in Figure 1 and Figure 2, and marked
E, F, G.
H is the air-way; and K is the water space.
The inlet and outlet pipes for the water are shown in Figure 3, and are marked
C, D; the pipe C being also shown in Figure 1.
When the loose nozzle is worn and unfit for further use the nuts securing the
bolts E, F, G, Figure 1 and Figure 3, are unscrewed, and the nozzle, with the bolts
attached, is withdrawn; the bolts can be fitted to a new nozzle, and the new
nozzle be secured to the old main body of the tuyere as in the first instance.
In cases where the use of bolts is impossible or inconvenient, the loose nozzle can
be secured to the body of the tuyere by forming on the nozzle a projecting socket
and screwing it on to the body of the tuyere, as shown in Figure 4.
Instead of an ordinary screw thread, as shown in Figure 4, one strong projecting
thread can be cast or formed on the body of the tuyere, and one corresponding
recessed thread be cast or formed in the projecting socket of the nozzle, so that
when securing the loose nozzle to the body of the tuyere it will only be necessary
to turn the loose nozzle one revolution on the body of the tuyere instead of a number
of revolutions, as in Figure 4.
In making the joint between the loose nozzle and the main body of the tuyere
red lead or other suitable packing can be used, as is ordinarily employed for
joints.
Having now particularly described and ascertained in what manner our Invention
is to be or may be performed and carried into effect, we claim as our Invention
secured to us by the herein-before in part recited Letters Patent, "Improvements in
Water Tuyere Irons or Tuyeres," constructed substantially as herein-before
specified and described and illustrated in Figures 1 to 4 of the accompanying
Sheet of Drawings.
In witness whereof, we, the said Joseph Yates and George William Willford,
have hereunto set our hands and seals, this Second day of December,
One thousand eight hundred and seventy-eight.