IMPROVEMENTS IN THE UTILIZATION OF THE PRODUCTS OF COMBUSTION FOR THE PRODUCTION OF MOTIVE Power, AND IN FURNACES AND BOILERS TO BE EMPLOYED FOR SUCH PURPOSE." PROVISIONAL SPECIFICATION
Year: 1872

page_text: LETTERS PATENT to Edward Partington, of Manchester, in the County
of Lancaster, for the Invention of "IMPROVEMENTS IN THE UTILIZATION
OF THE PRODUCTS OF COMBUSTION FOR THE PRODUCTION OF MOTIVE Power,
AND IN FURNACES AND BOILERS TO BE EMPLOYED FOR SUCH PURPOSE."
PROVISIONAL SPECIFICATION left by the said Edward Partington
at the Office of the Commissioners of Patents, with bis Petition, on
the 26th July 1872.
I, EDWARD PARTINGTON, of Manchester, in the County of Lancaster,
do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN THE UTILIZATION OF THE PRODUCTS OF COMBUSTION FOR THE PRODUCTION OF
MOTIVE POWER, AND IN FURNACES AND BOILERS TO BE EMPLOYED FOR SUCH
PURPOSE," to be as follows:-
My Invention consists, firstly, in utilizing the heated air, gases, and
other products of combustion evolved from the furnace by mixing them
with the steam produced by the evaporation of the water in the boiler, and
using this mixture of heated air gases, and steam as the motive power

page_text: for driving the engine; and secondly, in a peculiar construction of
furnace and boiler adapted for the utilization of the said products in the
manner specified.
The furnace and flue is entirely closed, there being no chimney; the
end of the flue furthest from the furnace communicates by means of
valves (opening upwards) with the steam space of the boiler. The fuel
is admitted through a vertical tube or hopper provided with two valves
or slides working alternately, and in the bottom of the furnace beneath
the fire-bars are two tubular ash-pits also provided with two valves or
slides working alternately. The air is supplied to the furnace beneath
the fire-bars by means of a fan or blast engine. The combustion of the
fuel thus takes place under pressure, and the whole of the products of
combustion pass into the steam space in the boiler, and mixing with
the steam are utilized for the purpose of producing motive power.
The fire-bars which I prefer to use are those known as "Vicker's
Patent travelling bars," which are caused to oscillate to and fro by
suitable gearing. The ashes which fall through the bars pass off through
one ash-pit, and the clinkers which fall over the back ends of the bars
drop through the other tubular ash-pit.
In getting up steam in the first instance, a temporary chimney is
used which is placed at the rear end of the flue, and the products of
combustion pass out through this chimney, but as soon as the steam
has been raised to a pressure of about two or three pounds to the square
inch, this chimney is closed by a valve or slide and the heated air and
gases no longer escape but pass through the valves, as before mentioned,
into the steam space of the boiler, and mix with the steam therein.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Partington in the Great Seal Patent
Office on the 25th January 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
PARTINGTON, of Manchester, in the County of Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-sixth day of January, in the year

page_text: of our Lord One thousand eight hundred and seventy-two, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Edward Partington, Her special license.
that I, the said Edward Partington, my executors, administrators,
and assigns, or such others as I, the said Edward Partington, 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 Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
THE UTILIZATION OF THE PRODUCTS OF COMBUSTION FOR THE PRODUCTION OF MOTIVE
POWER, AND IN FURNACES AND BOILERS TO BE EMPLOYED FOR SUCH PURPOSE," upon
the condition (amongst others) that I, the said Edward Partington, my
executors or administrators, 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 calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that I, the said Edward Partington, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement and accompanying Drawings (that is to
say) :—
+
My Invention consists, firstly, in utilizing the heated air, gases, and
other products of combustion evolved from the furnace by mixing them
with the steam produced by the evaporation of the water in the boiler,
and using this mixture of heated air, gases, and steam, as the motive
power for driving the engine; and secondly, in a peculiar construction
of furnace and boiler adapted for the utilization of the said products in
the manner specificd.
The furnace and flue is entirely closed, there being no chimney; the
end of the fluc furthest from the furnace communicates by means of
valves (opening upwards) with the steam space of the boiler. The fuel
is admitted through a vertical tube or hopper provided with two valves
or slides working alternately, and in the bottom of the furnace beneath
the fire-bars are two tubular ash-pits also provided with two valves or

page_text: slides working alternately. The air is supplied to the furnace beneath
the fire-bars by means of a fan or blast engine. The combustion of the
fuel thus takes place under pressure, and the whole of the products of
combustion pass into the steam space in the boiler, and mixing with the
steam are utilized for the purpose of producing motive power.
The fire-bars which I prefer to use are those known as "Vicker's
Patent travelling bars," which are caused to oscillate to and fro by
suitable gearing. The ashes which fall through the bars pass off through
one ash-pit, and the clinkers which fall over the back ends of the bars
drop through the other tubular ash-pit.
'
In getting up steam in the first instance, air is forced in by manual
labor with an air pump, or a temporary chimney may be used which is
placed at the rear end of the flue, and the products of combustion pass
out through this chimney, but as soon as the steam has been raised to a
pressure of about two or three pounds to the square inch this chimney
is closed by a valve or slide, and the heated air and gases no longer.
escape but pass through the valves, as before mentioned, into the steam
space of the boiler and mix with the steam therein.
Such being the nature and object of my Invention for " Improve-
ments in the Utilization of the Products of Combustion for the
Production of Motive Power, and in Furnaces and Boilers to be employed
for such Purpose," I will now proceed to describe more in detail the
manner in which the same is to be or may be performed or carried into
practical effect, and in order that the same may be clearly understood
I have annexed hereunto a Sheet of Drawings illustrative thereof, and
have marked the same with Figures and letters of reference corresponding
with those in the following explanation thereof,—
In the annexed Drawing Fig. 1 is a longitudinal section of a boiler
and furnace constructed according to my Invention; Fig. 2 is a transverse
section; and Fig. 3 a plan view of the same.
a, a, is the shell of the boiler and b, b, the furnace and flue, which it
will be seen is entirely closed at each end, and communicates at the rear
end by valves c, c, with the steam space of the boiler a, a, above the
water level.
The fire-bars d, d, may be of any suitable construction provided that
such an oscillating movement is given to them as will cause the fuel.to

page_text: be carried gradually towards the rear. The fuel is supplied through the
vertical tube e, e, provided with two slides f,f, working alternately, and
in the bottom of the furnace beneath the fire-bars are two tubular
ash-pits g, g, each provided with two valves or slides h, h. These valves
or slides as well as the slides f, f, are caused to work alternately at
suitable intervals either by automatic means or otherwise, the former
to take away the ashes and clinkers, and the latter to supply the fuel.
One of the tubes g, g, is provided with an air supply pipe i, i, which
supplies air to the furnace from a fan or blast engine.
Having now described the nature and object of my said Invention,
together with the manner in which the same is to be or may be per-
formed or carried into practical effect, I wish it to be understood that I
claim as my Invention, utilizing the heated air and other gaseous
products of combustion evolved from the furnace by mixing them
with the steam produced by the evaporation of the water in the boiler,
and using such mixture of heated air, gases, and steam as the motive
power for driving an engine, substantially in the manner and by means
of a boiler and furnace constructed as herein-before described.
In witness whereof, I, the said Edward Partington, have here-
unto set my hand and seal, this Twenty-fourth day of January,
in the year of our Lord. One thousand eight hundred and seventy-
three.
Witnessed by
GEORGE DAVIES, C.E.,
Patent Agent,
Manchester.
EDWARD PARTINGTON. (L.S.)