IMPROVEMENTS IN APPARATUS FOR HEATING THE FEED WATER OF STEAM BOILERS, SUPERHEATING STEAM, AND SURFACE CONDENSATION
Year: 1861

page_text: LETTERS PATENT to Samuel Elson, of Oldham, in the County of Lan-
caster, Engineer, for the Invention of "IMPROVEMENTS IN APPARATUS FOR
HEATING THE FEED WATER OF STEAM BOILERS, SUPERHEATING STEAM, AND
SURFACE CONDENSATION."
Sealed the 18th February 1862, and dated the 23rd August 1861.
PROVISIONAL SPECIFICATION left by the said Samuel Elson at the
Office of the Commissioners of Patents, with his Petition, on the 23rd
August 1861.
I, SAMUEL ELSON, of Oldham, in the County of Lancaster, Engineer, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN APPA-
RATUS FOR HEATING THE FEED WATER OF STEAM BOILERS, SUPERHEATING STEAM,
AND SURFACE CONDENSATION," to be as follows:-
I propose that the water to be supplied to the boiler shall first be heated
by means of the exhaust steam of the engine, whence it is to be forced by
pumps into suitable cylinders placed in the flues leading to the chimney, the
water becoming further heated by the waste heat from the furnace of the
boiler. A tube or pipe of small diameter, open at the lower end, conveys
the water to the bottom of each of these cylinders, and is so arranged as to

page_text: pass through their interior, whenco the water continues its passage within the
cylinders to the feed pipe, which conveys it to the boiler. The cylinders are
kept free from the accumulation of soot or dirt by means of chains or bands
passing two or more turns round them from end to end, where their extremities
are attached to wheels rotating at either or both ends of the cylinders by means
of a shaft and cog wheels. These chains or bands thus scrape or rub off the
soot or dirt as it lodges on the exterior of the cylinders, rendering them moro
capable of absorbing heat, and conveying it to the water within.
These cylinders in like manner servo for the purpose of superheating
steam, in which caso a syphon box is placed at their lower extremity, and an
iron casing coutaining a lover float, balance weight, and equilibrium valve is
suitably arranged, in order to carry off any water that might lodge in the
cylinders, and also to retain the steam.
The cylinders may also be made useful for surface condensation by arranging
them in conjunction with an iron vessel or suitable receptacle, and exhausting
steam inside or outside the cylinders, according as they are placed either in the
interior or outside tho said vessel.
When required for heating water, the exhaust apparatus and cylinders are
worked separately or conjointly with each other.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Samuel Elson in the Great Seal Patent Office on the
22nd February 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
ELSON, of Oldham, in the County of Lancaster, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-third day of August, 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 Samuel Elson, Her special licence that I, the said Samuel Elson, my
executors, administrators, and assigns, or such others as I, the said Samuel
Elson, 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 torm 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 APPA

page_text: '
RATUS FOR HEATING THE FEED WATER OF STEAM BOILERS, SUPERHEATING STEAM,
AND SURFACE CONDENSATION," upon the condition (amongst others) that I, the
said Samuel Elson, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should par-
ticularly 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 Patent.
NOW KNOW YE, that I, the said Samuel Elson, do hereby declare the
nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement :--
I propose that the water to be supplied to the boiler shall first be heated
by means of the exhaust steam of the engine, whence it is to be forced by
pumps into suitable cylinders placed in the flues leading to the chimney, the
water becoming further heated by the waste heat from the furnace of the
boiler. A tube or pipe of small diameter, open at the lower end, conveys
the water to the bottom of each of these cylinders, and is so arranged as to
pass through their interior, whence the water continues its passage within the
cylinders to the feed pipe, which conveys it to the boiler. The cylinders are
kept free from the accumulation of soot or dirt by means of chains or bands
passing partly, entirely, or more than one turn round them from end to end,
where their extremities are attached to wheels rotating at either or both ends
of the cylinders by means of a shaft and cog wheels. These chains or bands
thus scrape or rub off the soot or dirt as it lodges on the exterior of the
cylinders, rendering them more capable of absorbing heat, and conveying it to
the water within.
These. cylinders in like manner serve for the purpose of superheating
steam, in which case a syphon box is placed at their lower extremity, and an
iron casing containing a lever, float, balance weight, and equilibrium valve is
suitably arranged, in order to carry off any water that might lodge in the
cylinders, and also to retain the steam.
The cylinders may also be-made useful for surface condensation by arranging
them in conjunction with an iron vessel or suitable receptacle, and exhausting
steam inside or outside the cylinders, according as they are placed either
in the interior or outside the said vessel.
When required for heating water, the exhaust apparatus and cylinders are
worked separately or conjointly with each other.

page_text: DESCRIPTION OF THE DRAWINGS.
A is a valve, by which injection water is thrown into the exhaust pipe of
the engine, being the injection pipo; a is the exhaust pipe from the engine
into the condenser a'; 6 is the force pump; c is the pipe conveying the feed
water therefrom to the cylinders d, d, &c., in the flues e, e, leading to the
chimney; f, f, are the inner tubes of these cylinders d, which are open at
their lower ends for the purpose of conveying the water to the bottom of the
cylinders, so as to cause it to circulate freely through them, and acquiro
additional heat; 9, g, is the pipo conveying the water to the boiler, h;
i, i, are the chains, passing partly, entirely, or more than onco round the
cylinders d, d, for the purpose of cleaning them or freeing them from accu-
mulations of soot or dirt, so as to enable them the more readily to take up
the heat, and give it to the water they contain; and k, k, are the wheels and
gearing, to which the ends of the chains are attached, in order to cause them
to travel round the cylinders. These cylinders may be made of a circular,
oval, elliptical, square, or other shapo or form as may be found most desirable,
and in some cases the inner tubes f, f, may be omitted, and the cylinders d, d,
&c., used without any internal tubes, their principal object of receiving and
discharging the water at the top ends thereof being still accomplished.
For the purpose of superhoating steam the same apparatus is used, with the
addition of a syphon box / placed at the lower extremity of the cylinders, and
an iron casing m containing the lever n, float o, balance weight p, and
equilibrium valve q, & air valvor is suitably arranged so as to carry off
any water that may lodge in the cylinders, as well as to retain tho steam.
For surface condensation the apparatus may be equally applied, by arranging
the cylinders in conjunction with an iron vessel or other receptacle, and by
exhausting steam, either inside or outside them, according to their situation
with regard to the exterior or interior of the vessel or receptacle.
When required for heating water or generating steam, the exhaust apparatus
and cylinders are to be worked separately or in connexion with each other.
Having now described the nature of my said Invention for "Improvements
in Apparatus for Heating the Feed Water of Steam Boilers, Superheating
Steam, and Surface Condensation," and the manner in which the same is to
bo performed, I would remark, in conclusion, that I do not confine or restrict
myself to the precise details herein specified, as the samo may be varied or
modified without in any way departing from the principle of my Invention;
but what I claim as my Invention, and therefore desire to be secured to me

page_text: by the herein in part recited Letters Patent, is, the method of heating the feed
water of steam boilers, superheating steam, and surface condensation, by means
of the apparatus herein described and shewn.
In witness whereof, I, the said Samuel Elson, have hereunto set my
hand and seal, this Seventeenth day of February, One thousand eight
hundred and sixty-two.
Witness,
EDWARD INGHAM,
Hopwood Street,
Oldham.
SAMUEL ELSON. (L.B.)