IMPROVEMENTS IN APPARATUS FOR HEATING THE FEED WATER. FOR STEAM BOILERS BY: THE " PROVISIONAL THE EXHAUST STEAM FROM HIGH-PRESSURE ENGINES
Year: 1860

page_text: LETTERS PATENT to Walter Mabon, junior,. and William Peel Gaulton,
both of "Ashton Old. Road Iron Works," in the City of Manchester, and
County of Lancaster, Engineers, for the Invention of "IMPROVEMENTS IN
APPARATUS FOR HEATING THE FEED WATER. FOR STEAM BOILERS BY: THE
"
PROVISIONAL SPECIFICATION left by the said Walter Mabon and
William Peel Gaulton at the Office of the Commissioners of Patents,
with their Petition, on the 27th October 1860.
We, WALTER MABON, junior, and WILLIAM PEEL GAULTON, both of:
"Ashton Old Road Iron Works," in the City of Manchester, and County of:
Lancaster, Engineers, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN APPARATUS FOR HEATING THE FEED WATER FOR STEAM
BOILERS BY THE EXHAUST STEAM FROM HIGH-PRESSURE ENGINES," to be as
follows:-
Our Invention consists in the use of a pipe peculiarly formed into a con-
tinuous flat coil, through which the water is forced after it has passed through the
feed pump,
and of an oblong hollow casing or heater in which the coil is placed,
and through which the exhaust steam is blown from the engine cylinder. The
water being supplied cold to the pump is forced into the coil at a low tempe-

page_text: rature, but during its progress through the coil it gradually becomes heated to
a boiling temperature, and from thence is driven into the boiler in that state.
A considerable amount of condensation takes place as the exhaust steam
strikes the cold end of the coil sufficient to cause a continuous stream of pure
water to flow from the heater, to the under side of which a pipe is attached for
the purpose, if necessary, of reconveying the water thus condensed into the
reservoir or elsewhere. Under circumstances where the supply of water is
limited or when it is charged with objectionable organic or other matter,
considerable economy and other advantages result from the arrangement.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Walter Mabon and William Peel Gaulton in the Great Seal
Patent Office on the 27th April 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, WALTER
MABON, junior, and WILLIAM PEEL GAULTON, both of Ashton Old Road Iron
Works, in the City of Manchester, and County of Lancaster, Engineers, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-seventh day of October, in the year of our Lord
One thousand eight hundred and sixty, in the twenty-fourth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said Walter Mabon, junior, and William Peel Gaulton, Her special license
that we, the said Walter Mabon, junior, and William Peel Gaulton, our
executors, administrators, and assigns, or such others as we, the said Walter
Mabon, junior, and William Peel Gaulton, our 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 APPARATUS FOR HEATING THE FEED WATER
OF STEAM BOILERS BY THE EXHAUST STEAM FROM HIGH-PRESSURE ENGINES,"
upon the condition (amongst others) that we, the said Walter Mabon, junior,
and William Peel Gaulton, by an instrument in writing under our 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 l'atent.

page_text: NOW KNOW YE, that we, the said Walter Mabon, junior, and William
Peel Gaulton, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement and accompanying Drawing, that is
to say:
Our improvements in apparatus for heating the feed water for steam boilers
by the exhaust steam from high-pressure engines consists in the use of a pipe
so coiled that the different circles or turns of the coil lay against each other in
such a way that no clear passage is seen through them when viewed from the
end. We have used a worm but in consequence of the central open space
from end to end we find it less efficient than the flat coil we now describe.
This coil is placed in a narrow case only sufficiently large to contain it; it is
placed between the force pump and the boiler, and forms part of the con-
nection between them through which the feed water is forced. The exhaust
steam from the engine being blown into the case there comes in contact with
the turns of the coil, and thereto parts with its heat, which is absorbed by the
feed water inside as it is forced on through the different turns of the coil to
the boiler.
(a) is the coil of pipe through which the feed water passes from the pump
to the boiler; (b) is a union joint for connecting the feed pipe (c), which forms
the connection between the pump and the coil; (d) is another union joint for
connecting the pipe which communicates with the boiler to the other end of
the coil; these communications may be made with flanges instead of unions;
(e) is a narrow steam-tight case in which the coil is fixed; (f) is an opening
at one end for the entrance of the exhaust steam, and (9) is an opening at the
other end for the exit of the exhaust steam; (h) is a pipe through which the
condensed water runs off; the exhaust steam every stroke of the engine enters
one end of the steam-tight case at the opening (f), where it first comes in
contact with that end of the coil which is in connection with the pump; the coils
there being cold condenses a portion of the steam, which the heat therefrom
passes through the pipe to the feed water inside. The remainder of the
exhaust steam passes on through the case, and on its passage meets a partial
barrier at every turn of the coil, whereunto it imparts the principal portion of
its heat which is absorbed by the feed water, the temperature of which as it is
gradually forced through the coil is raised to water boil, and at or about that
temperature it is forced on and enters the boiler. The steam which remains
passes out of the case at the opening (g), to be applied, if necessary, as a blast
up the chimney. The water which is the product of the condensed steam runs off
through the pipe (h) into the reservoir, again to be used if required. On board

page_text: sea-going steam vessels, driven by high-pressure steam engines, our Invention
may be applied with advantage, not only on account of the saving of heat, but
because the boiler being partially fed by the water so condensed less salt is
accumulated in the boiler, and on board canal and river steamboats, the con-
densed water being free from organic matter less deposit is made in the boiler;
this is also the case when stationary boilers are fed from canals, rivers, or pools,
when their waters are in a dirty foul state.
Having now described the nature of our Invention and its mode of application,
we wish it to be understood that we do not confine ourselves to the number of
turns or laps in the coil or to the regularity or size of their diameters, and
what we believe to be our Invention and claim as new is,---
First, we claim for the use of a length of pipe coiled after the manner and
for the purposes herein described and shewn by the Drawing hereto annexed.
Secondly, we claim for the mode of passing the feed water into steam boilers
after it has left the pump through a coil of metal pipe contained in a case as
herein described for the purpose of raising the temperature of such water on
its passage to the boiler.
In witness whereof, we, the said Walter Mabon, junior, and William
Peel Gaulton, have hereunto set our hands and seals, this Twenty-sixth
day of April, in the year of our Lord One thousand eight hundred and
sixty-one.