IMPROVE- MENTS IN THE MEANS OR APPARATUS EMPECTED FOR FREDING SEPAK BOLLURG WITH HOT WATER
Year: 1861

page_text: LETTERS PATENT to Joshua Garside Wilson, of Rastrick, near Halifax,
in the County of York, Manufacturer, for the Invention of "IMPROVE-
LETTERS PATENT to Joshua Garside Wilson, of Rastrick, near Halifax,
in the County of York, Manufacturer, for the Invention of "IMPROVE-
MENTS IN THE MEANS OR APPARATUS EMPECTED FOR FREDING SEPAK BOLLURG
WITH HOT WATER"
Sealed the 31st December 1861, and dated the 2nd July 1861.
PROVISIONAL SPECIFICATION left by the said Joshua Garside Wilson
at the Office of the Commissioners of Patents, with his Petition, on
the 2nd July 1861.
I, JOSHUA GARSIDE WILSON, of Rastrick, near Halifax, in the County of
York, Manufacturer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE MEANS OR APPARATUS EMPLOYED FOR FEEDING STEAM
BOILERS WITH HOT WATER," to be as follows:-
This Invention relates to steam boilers which are fed or supplied with water
heated by being forced or passed through pipes or tubes placed in the flues.
In the employment of such heating tubes there is great danger of explosion or
damage to the tubes if the feed pump ceases to work, and does not, therefore,
keep the tubes supplied with water; to remedy which is the object of this
Invention, and the improvements consist in the application of a valve to the
said tubes or feeding apparatus, so årranged and connected with the boiler
that when the pump ceases to force the water through the tubes, the valve.
will open to the water in the boiler, and allow it to circulate in the tubes, and
thus prevent explosion or damage to the said tubes.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joshua Garside Wilson in the Great Seal Patent Office on
the 1st January 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSHUA
GARSIDE WILSON, of Rastrick, near Halifax, in the County of York, Manu-
facturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Second day of July, in the year of our Lord
One thousand eight hundred and sixty-one, in the twenty-fifth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Joshua Garside Wilson, Her special license that I, the said
Joshua Garside Wilson, my executors, administrators, and assigns, or such
others as I, the said Joshua Garside Wilson, 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 King-
dom of Great Britain and Ireland, the Channel Islands, and Isle of Man,
an Invention for "IMPROVEMENTS IN THE MEANS OR APPARATUS EMPLOYED FOR
FEEDING STEAM BOILERS WITH HOT WATER," upon the condition, amongst
others, that I, the said Joshua Garside Wilson, my executors or adminis-
trators, 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
calender months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Joshua Garside Wilson, do hereby
declare the nature of any 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) :-
This Invention relates to steam boilers which are fed or supplied with water
heated by being forced or passed through pipes or. tubes placed in the flues.
In the employment of such heating tubes there is great danger of explosion or
damage to the tubes if the feed pump ceases to work, and does not therefore
keep the tubes supplied with water; to remedy which is the object of this
Invention, and the improvements consist in the application of a valve to the
said tubes or feeding apparatus, so arranged and connected with the boiler

page_text: that when the pump ceases to force the water through the tubes, the valve
will open to the water in the boiler, and allow it to circulate in the tubes,-and
thus prevent explosion or damage to the said tubes.
The Invention will be readily understood by reference to the accompanying
Sheet of Drawings, wherein Fig. 1 is a cross section, and Fig. 2 a longitudinal
section (taken through one of the flues), of a Cornish or two-flued fire-box
boiler with my improvements applied thereto.
A is the grate bars or fire bed, and B the bridge forming the fire-box within
the flue, as usual; C is the feed pipe, or pipe connected to the feed pump, for
conducting the feed water into the boiler, which water, instead of being dis-
charged direct into the bottom of the boiler, as in ordinary usage, the said
pipe is continued within the boiler to beyond the bridge, and thence by branch
pipes D passing into the flues is connected to a series of pipes E, arranged in
a serpentine manner within the flues behind the bridges, the outlet ends of the
said pipes passing through the upper sides or tops of the flues in the boiler to
about the height of the water line F. It will now be seen that the feed' water
is caused by the action of the pump to pass along or through these pipes
where the intense heat from: the furnace acts upon it, and is then discharged
into the boiler at a very high temperature. It is not new; however, to pass
the feed water through tubes arranged and applied in a somewhat similar
manner in the flues of steam boilers, but hitherto in the using of such it has
been found that if the pump ceases to work, so as not to maintain a constant
passage of the water through the tubes, the heat of the furnace drives tlie
water out of the tubes into the boiler, and the tubes are consequently burnt
asunder, and an explosion takes place, or otherwise the tubes are damaged so
as to be useless. To prevent such explosion or damage, I apply a valve G,
which, when the pump is in action, is closed by the pressure thereof at each
stroke or impulse, thus causing the. water to pass through the tubes to the
upper part of the boiler, as previously shewn, but if. the. pump, ceases to act,
or to force the water constantly through the feed pipe, the said valve opens to
and admits the water from the bottom part of the boiler, which water, in con-
sequence of there being no great amount of heat applied to it, is at a much
lower temperature than the water in the upper part of the; boiler, and,
therefore, more dense, will readily flow therein, and displace or replace the
hotter water, which, by the action of the furnace, is driven out of the tubes
into the upper part of the boiler, and thus a constant circulation of the water
through the tubes will be kept up, and thereby explosions or damage to the
tubes will be prevented. This valve is shewn on a larger. scale at Fig. 3,
where it will be seen that it is,simply what is technically known as a "mush-

page_text: room valve" of ordinary construction, the valve opening by its own weight
when no pressure is applied on the under side of it.
I have herein shewn the application of my Invention to fire-box boilers
only, but it may also be applied to other descriptions of boilers, for instance,
in order to apply it to a plain cylindrical boiler, or one having the fire under-
neath, I place the valve in the boiler at such part or place as the water
therein will be of the lowest temperature, viz., the back end, or furthest from
the furnace, and I arrange the tubes in the flue or flues in a similar manner
as previously described, so that the water in its course from the feed pump
may be constantly ascending as the heat of the furnace acts upon it, until it is
finally discharged at the upper part of the boiler; the valve being placed in
such part where the water in the boiler is at a lower temperature than where
the water is discharged from the feed pipe into the boiler, a constant circulation
will be maintained, although the pump may cease to work, or to force the
water through the pipes.
Having thus described the nature of my said Invention, and the manner in
which the same is performed or carried into practice, I would have it under-
stood that I do not claim any of the parts separately considered, nor do
I confine myself to the precise detail of arrangement or method of application;
but what I do claim as of my Invention, and which I believe to be new within
the realm, is,-
Firstly, the application of a valve to the feed pipes of steam boilers, for
purposes as herein described.
And, secondly, the general arrangement of feed pipes or apparatus for
heating the feed water in the flues of steam boilers, as herein described and
illustrated by the accompanying Sheet of Drawings.
In witness whereof, I, the said Joshua Garside Wilson, have hereunto
set my hand and seal, this Twenty-eighth day of December, One
thousand eight hundred and sixty-one.
Signed, sealed, and delivered by the within-
named Joshua Garside Wilson, in the
presence of
W. TASKER, Patent Agent,
Halifax.
JOS. G. WILSON. (L.S.)