IMPROVEMENTS IN OBTAINING MOTIVE POWER, AND IN APPARATUS EMPLOYED THEREIN.
Year: 1871

page_text: LETTERS PATENT to James Edwards Wilson, of Spring Gardens, in
the County of Middlesex, Civil Engincer, for the Invention of
"IMPROVEMENTS IN OBTAINING MOTIVE POWER, AND IN APPARATUS EMPLOYED
THEREIN.
"
Sealed the 15th August 1871, and dated the 17th February 1871.
PROVISIONAL SPECIFICATION left by the said James Edwards Wilson
at the Office of the Commissioners of Patents, with his Petition,
on the 17th February 1871.
I, JAMES EDWARDS WILSON, of Spring Gardens, in the County of
Middlesex, Civil Engineer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN OBTAINING MOTIVE POWER, AND IN APPARATUS
EMPLOYED THEREIN," to be as follows:-
My Invention consists in obtaining motive power from the expansive
force of a mixture of steam and the products of combustion, which
force is made to work the pistons of cylinders, the motion thus produced
being transmitted from the piston rods in any ordinary manner.

page_text: In carrying out my Invention I employ a furnace or fire-place open
at the top and provided with a grating at its lower part. The bottom
of the furnace is in communication with an ordinary valve box, which
is in connection with one or more cylinders, preferably more than one,
the cranks of the piston rods of these cylinders, when two are employed,
being at right angles to each other. Between the furnace and the valve
box are one or more nozzles or analogous appliances for delivering water
in the state of spray or fine division. The supply to each cylinder is
cut off at a suitable part of the stroke.
The action is as follows:-The piston of one of the cylinders during
the first portion of its forward stroke produces a draught down through
the furnace and through the valve box into the back end of the cylinder,
so that this end of the cylinder becomes filled with a mixture of the
products of combustion and of the steam resulting from the vaporization
of the water which has mingled with the products of combustion on
their way from the furnace; when the supply to this end of the cylinder
is cut off the expansive force of the said mixture completes the forward
stroke of the piston. In the meantime the other piston has been
drawing in a similar supply of steam and products of combustion
through the valve box, and is then in its turn worked expansively, and
SO 011. The products of combustion can thus be applied to the purposes
of motive power by reducing their temperature to a suitable point by the
evaporation of the water, the tensile force of the steam thus generated
being added to that of the products of combustion.
"
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Edwards Wilson in the Great Seal Patent
Office ou the 17th August 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
EDWARDS WILSON, of Spring Gardens, in the County of Middlesex, Civil
Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing dato the Seventeenth day of February, in the
year of our Lord One thousand eight hundred and seventy-one, in
the thirty-fourth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said James Edwards Wilson,

page_text: Her special licence that I, the said James Edwards Wilson, my executors,
administrators, and assigns, or such others as I, the said James Edwards
Wilson, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times there-
after 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 OBTAINING MOTIVE POWER, AND IN APPARATUS EMPLOYED
THEREIN," upon the condition (amongst others) that I, the said James
Edwards Wilson, 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 Scal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE that I, the said James Edwards Wilson, 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 thereof, that is to say :-
My Invention consists in obtaining motive power from the expansive
force of a mixture of steam and the products of combustion, which
force is made to work the pistons of cylinders, the motion thus produced
being transmitted from the piston rods in any ordinary manner.
In carrying out my Invention I employ a furnace or fire-place open
at the top and provided with a grating at its lower part. The bottom
of the furnace is in communication with an ordinary valve box, which
is in connection with one or more cylinders, preferably more than one,
the cranks of the piston rods of these cylinders, when two are employed,
being at right angles to each other. Between the furnace and the valve
box are one or more nozzles or analogous appliances for delivering water
in the state of spray or fine division. The supply to each cylinder is cut
off at a suitable part of the stroke.
The action is as follows:-The piston of one of the cylinders during
the first portion of its forward stroke produces a draught down through
the furnace and through the valve box into the back end of the cylinder,
so that this end of the cylinder becomes filled with a mixture of the
products of combustion and of the steam resulting from the vaporization
of the water which has mingled with the products of combustion on

page_text: their way from the furnace; when the supply to this end of the cylinder
is cut off the expansive force of the said mixture completes the forward
stroke of the piston. In the meantime the other piston has been
drawing, in a similar supply of steam and products of combustion
through the valve box, and is then in its turn worked expansively, and
so on. The products of combustion can thus be applied to the purposes
of motive power by reducing their temperature to a suitable point by
the evaporation of the water, the tensile-force of the steam thus generated
being added to that of the products of combustion.
And having now described the nature of the said Invention, and in
what manner the same is to be performed, I declare that I claim,-
First. Obtaining motive power from the expansive force of a mixture
of steam and the products of combustion, substantially as herein-before
described.
Second. Constructing apparatus, substantially as herein-before
described, for obtaining motive power from the expansive force of a
mixture of steam and the products of combustion.
In witness whereof, I, the said James Edwards Wilson, have here-
unto set my hand and seal, this Seventeenth day of August,
One thousand eight hundred and seventy-one.