IMPROVEMENTS IN WATER TUYERES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, WILLIAM DODD of Gospel Oak, Tipton, in the County of Stafford General
smith, do hereby declare the nature of said invention for "IMPROVEMENTS IN
WATER TUYERES" to be as follows:-
Tuyres of the ordinary construction are so made that the interior or water space
is rendered inacessible, in consequence of the back being enclosed or covered up.
The object of my invention is to make the back covering plate of tuyres
removable or detachable from the body, in order that scale or other accumulations
deposited in the water space can be readily removed, so that by keeping the interior
water space perfectly clean and free from deposit or other accumulations, there is
little or no liability to the burning of the nose of the tuyre.
The body of the tuyre consists of the ordinary hollow shell having the blast
pipe running directly through its axis, and terminating in the nose. The open
back of the tuyre is provided with a detachable cap or plate, which is threaded
upon the blast pipe. The said detachable plate or cap is affixed to the back end of
the tuyre; by means of a screw nut taking upon a thread wormed on the outside
of the blast pipe. The discharge and feed water pipes are screwed into the
detachable covering plate as before described, which is situated at the back end of'
the tuyre. In order to produce a sound joint of the covering plate, suitable
packings are interposed between the said plate and the tuyre end. So that when
the tyre is in use, water passes through the feed-pipes and from thence circulates
in the interior of the water space, and is then discharged by the outlet pipe, the
circulation of the water keeping the tuyre cool, and not liable to burn at its nose,
and therefore the tuyre becomes more durable.
In order to examine the tuyro, it is only necessary to reinove the screw nut or
nüts from the wormed end of the blast pipe, when the back plate can be readily
removed, and all scale and other scurf accumulations deposit in the interior of the
said tuyre removed. By again replacing the plate and affixing it by the screw
nuts, the tuỷre is again ready for use.

page_text: COMPLETE SPECIFICATION.
I, WILLIAM DODD of Gospel Oak, Tipton, in the County of Stafford General
Smith, do hereby declare the nature of said invention for "IMPROVEMENTS IN
WATER TUYERES and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
Tuyeres of the ordinary construction are so made that the interior or water space
is rendered inaccessible, in consequence of the back being enclosed or covered up.
The object of my invention is to make the back covering plate of tuyres
removable or detachable froin the body, in order that scale or other accumulations
deposited in the water space can be readily removed, so that by keeping the
interior water space perfectly clean and free from deposit or other accumulations,
there is little or no liability to the burning of the nose of the tuyere.
The body of the tuyere consists of the ordinary hollow shell having the blast
pipe running directly through its axis and terminating in the nose.
The open
back of the tuyere is provided with a detachable cap or plate, which is threaded
upon the blast pipe. The said detachable plate or cap is affixed to the back end of
the buyere by means of a screw nut taking upon a thread wormed on the outside
of the blast pipe. The discharge and feed water pipes are screwed into the
detachable covering plate as before described, which is situated at the back end of
the tuyero. In order to produce a sound joint of the covering plate, suitable
packings are interposed between the said plate and the tuyero end. So that when
the tuyere is in use, water passes through the feed-pipo and froin thence circulates
in the interior of the water space, and is then discharged by the outlet pipe, the
circulation of the water keeping the tuyere cool, and not liable to burn at its nose,
and therefore the tuyere becomes more durable.
In order to examine the tuyere, it is only necessary to remove the screw nut or
nuts from the wormed end of the blast pipe, when the back plate can be readily
removed, and all scale and other scurf accumulations deposited in the interior of the
said tuyere removed. By again replacing the plate and affixing it by the screw
nuts, the tuşere is again ready for use.
Having described the nature of my invention, I will proceed to describo with
reference to the accompanying Drawing, the manner in which the same is to be
performed.
Figure 1 represents in elevation, a tuyere constructed according to my inven
tion Figure 2 is a longitudinal vertical section of the same, showing the back
covering plate fixed in position, water being représented circulating through 'the'
said tuyero, for the purpose of keeping it cool. Figure 3 also shows a section of
the tuyero with the removable back plate detached, in order that scale or other
accumulations deposited in the water-space can be readily removed, in virtue of
which, the water space or interior of the tuyere can be kept perfectly clean; so that
there is little liability of the burning of the tuyere nose. Figure 4 is the
removable back plate and fixing nut. Figure 5 is an ond view of figure 1, and
figure 6 is an end view of figure 3.
The same letters of reference indicate the same parts in the several figures of the
Drawing.

page_text: a is the tuyere and a³ its nose, which is preferably welded to the body; the said
body consists of an ordinary hollow shell, having the blast pipe b running through
its axis, and terminating in the nose, the open back of the tuyere is provided with
a detachable plate c which is threaded upon the blast pipe b. The said detachablo
plate c is affixed to the back end of the tuyere by means of the screw nut d, taking
upon the thread 6s wormed upon the outside of the blast pipe. The discharged
and feed water pipes e. f are screwed into the detachable covering plate c. Το
produce a sound joint, packing is interposed between the detachable tuyere end
covering plate, and the joints or junctions of the parts.
When the tuyere is in use, the covering plate c is securely fixed to the back of
the tuyere, and water passes through the feed pipes and from thence circulates
into the interior of the water spaco a³ and is then discharged by the outlet pipe f
the circulation of water keeping the tuyere cool which in consequence is not liable
to burn at its nose, and therefore the tuyoro becomes more durable and lasting.
In order to examine the tuyere, it is only necessary to remove the screw nut d
from the wormed end 6 of the blast pipe b, when the back plate c can be removed,
and all scale and other scurf accumulations deposited in the interior of the tuyore
removed.
By again replacing the plate, and affixing it by the screw nut d (or by two
screw nuts) the tuyre is again ready for use.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
The improvements in tuyeres herein-before described and illustrated in the
several figures of the Drawing; that is to say, the means whereby the back
covering plate which encloses the open end of the tuyre is readily affixed or
removed for the purpose of gaining access to the interior water space, in order that
the scale or other accumulations deposited therein can be removed, the parts being
arranged, combined and constructed as described and set forth.
L
AT 1
1000