IMPROVEMENTS IN APPARATUS FOR FEEDING STEAM BOILERS WITH WATER PROAL
Year: 1882

page_text: LETTERS PATENT to Charles Wetherell Wardle of the Boyne Engine Works,
Hunslet, Leeds in the County of York, Engineer for an invention of
"IMPROVEMENTS IN APPARATUS FOR FEEDING STEAM BOILERS WITH WATER
PROVISIONAL SPECIFICATION left by the said Charles Wetherell Wardle
at the Office of the Commissioners of Patents on the 13th March 1882.
CHARLES WETHERELL WARDLE of the Boyne Engine Works, Hunslet, Leeds
in the County of York, Engineer, "IMPROVEMENTS IN APPARATUS FOR FEEDING
STEAM BOILERS WITH WATER
"
"
In feeding steam boilers with water by apparatus of the kind known as the
injector" considerable loss of water usually occurs from the overflow port or pipe
of the apparatus before commencement of the feed. The prevention of this loss is
of great importance to users of steam boilers in localities where water is scarce, also
in dry seasons, and in the cases of locomotive and traction engines whether on the
rail, road, or in the field.
Now with a view to obviate the loss of water referred to above I provide a
suitable vessel to receive the said overflowing water as it leaves the overflow port
or pipe of the injector as above referred to this vessel I so place in any convenient
position and in connection with the said overflow port or pipe, that when the feed
water has attained the necessary velocity for entering the boiler and the injector
has got fairly into operation and has created a partial vacuum in the overflow pipe,
the water which would otherwise have run to waste, but which is now reserved in
the aforesaid vessel, will by the continued action of the injector and by reason of
the said partial vacuum in the overflow pipe, be caused to return from the said
vessel through the overflow pipe and into the injector, and become mixed with the
feed water from the usual source and enter the boiler therewith thus lessening the
quantity of water required to be drawn from the usual feeding source.

page_text: Hot water can also be drawn from the said vessel by the effect of the partial
vacuum previously referred to, during the operation of the injector, the said water
may be heated and supplied to the said vessel from any convenient source, or it
may be heated in any suitable manner after being supplied to the said vessel, and
be so injected into the boiler at a very high temperature along with the feed water
from the usual or any other source, which is of considerable advantage, thereby
effecting not only a saving of water but also of fuel.
My invention may be used for any kind of steam boiler, whether stationary,
locomotive or marine, and its use will be conducive to cleanliness about locomotive
or portable engines or boilers by preventing the overflowing water from running to
waste on the ground.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Charles Wetherell Wardle in the Great Seal Patent Office on the
8th September 1882.
CHARLES WETHERELL WARDLE of the Boyne Engine Works, Hunslet, Leeds,
in the County of York, Engineer,
"IMPROVEMENTS IN APPARATUS FOR FEEDING
"
STEAM BOILERS WITH WATER."
In feeding steam boilers with water by apparatus of the kind known as the
"injector," considerable loss of water usually occurs from the over-flow port or pipe
of the apparatus before commencement of the feed.
The prevention of this loss is of great importance to users of steam boilers in
localities where water is scarce, also in dry seasons, and in the cases of locomotive
and traction engines, whether on the rail, road or in the field.
Now with a view to obviate the loss of water above referred to, I provide a
suitable vessel to receive the said overflowing water as it leaves the overflow port
or pipe of the injector as above referred to, this vessel I so place in any convenient
position and in connection with the said overflow port or pipe, that when the feed
water has obtained the necessary velocity for entering the boiler, and the injector
has got fairly into operation and has created a partial vacuum in the overflow pipe,
the water which would otherwise have run to waste, but which is now reserved in
the aforesaid vessel, will, by the continued action of the injector and by reason of
the said partial vacuum in the overflow pipe or port, be caused to return from the
said vessel through the overflow pipe and into the injector, and become mixed
with the feed water from the usual source and enter the boiler therewith, thus
lessening the quantity of water required to be drawn from the usual source of
supply. Hot water can also be drawn from the said vessel by the effect of the
partial vacuum previously referred to during the operation of the injector, the said
water may be heated by any convenient heating apparatus and supplied to the said
vessel, or it may be heated by means of exhaust steam after being supplied to the
said vessel, and be so injected into the boiler at a very high temperature along
with the feed water from the usual or any other source which is of considerable
advantage, thereby effecting not only a saving of water but also of fuel.
My invention may be used for any kind of steam boiler whether stationary,
locomotive or marine, and its use will be conducive to cleanliness about locomotive,
portable or other engines or boilers by preventing the overflowing water from
running to waste on the ground.
In the accompanying sheet of drawings, Figs, 1, and 2, I shew the apparatus as
applied to a locomotive boiler, the source of water supply in this case being the
saddle tank A, B, is the injector C, the inlet for water regulated by the valve D,―
E, a pipe for conveying steam from the boiler to the injector at F, which is
regulated by the valve G-On opening the valve D, for the admission of water to
the injector B, and also opening the steam valve G, a quantity of said water escapes
at the overflow port H, which is usually allowed to run to waste, but which,
according to my invention is conducted by the pipe I, to the overflow vessel J, the
said escape or overflow of water continues until the injector has got fairly into play
forcing the water into the boiler, when the escape or overflow ceases and a
re-action takes place, the overflow water reserved in the vessel J, returns along
the pipe I, to the injector B, mixes with the feed water flowing therein, and with
it is injected into the boiler as previously described, thus economizing the quantity
of water required to be drawn from the tank A, or other usual source, K, is an
overflow pipe in connection with the overflow vessel J, to prevent the overcharging
of the same in the event of the injector not getting fairly into action in a

page_text: reasonable time, or through any other cause,-L, is the pipe leading from the
injector to the boiler, through which and the check valve M, the feed water
passes. Instead of feeding the boiler with cold water alone, heat may be applied
to the overflow vessel in any convenient manner, or hot water supplied thereto,
or exhaust steam passed therein by the pipe N, for heating water supplied to, or
contained in the said vessel, so that water at a high temperature may be injected
into the boiler along with the water from the usual source, the effect of which will
be a considerable saving in the consumption of fuel on that required when cold
water only is injected into the boiler.
Having now described the nature of the said Invention and the manner of
carrying the same into practical effect, I would have it understood that what I
consider to be novel and original and therefore claim as secured to me under the
Letters Patent hereinbefore first in part recited is
1, The use in combination with an injector for feeding a steam boiler with
water, of a vessel such as J, the arrangement being such that water escaping
from the overflow port or pipe of the injector is retained in the said vessel
until the injector has got fairly into operation and is then by the action of the
injector caused to enter the boiler along with water from the usual feeding source
substantially as herein before described with reference to the accompanying
drawings.
2. The use of the improved feeding apparatus substantially, as described for
supplying heated water to a steam boiler as above set forth.
In Witness whereof, I, the said Charles Wetherell Wardle, have hereunto
set my hand aud seal this sixth day of September, in the year of our Lord
One thousand eight hundred and eighty two.
CHARLES WETHERELL WARDDL (4.5.)
Witness to the signature of the said
Charles Wetherell Wardle,
THO8. E. CRAVEN
Patent Agent,
24, Victoria Chambers,
South Parade,
Leeds.