CERTAIN IMPROVEMENTS IN OR APPLICABI TO STEAM ENGINES
Year: 1862

page_text: LETTERS PATENT to James Park, of Bury in the County of Lancaster.
Engineer, for the Invention of "CERTAIN IMPROVEMENTS IN OR APPLICABI
TO STEAM ENGINES."
Sealed the 25th September 1862, and dated the 14th April 1862.
PROVISIONAL SPECIFICATION left by the said James Park at the Office
of the Commissioners of Patents, with his Petition, on the 14th April
1862.
I, JAMES PARK, of Bury, in the County of Lancaster, Engineer, do hereby
declare the nature of the said Invention for "CERTAIN IMPROVEMENTS IN OR
APPLICABLE TO STEAM ENGINES," to be as follows:-
The first part of my Invention is chiefly applicable in works where several
steam engines are employed, and it consists in connecting by suitable pipes the
whole or any number of such steam engines to one condensing apparatus; by:
this means each steam engine can be worked as a condensing engine, while
the construction remains simple, as in high-pressure engines.
The second part of my Invention is particularly applicable to the steam
engines coupled direct to the rag machines employed in the manufacture of
paper pulp, as described in the Specification of Letters Patent granted to me
on the Twenty-fourth day of May 1855, No. 1170, and it consists in applying

page_text: a condenser and air pump to such engines, and in casting or otherwise making
a jacket round the cylinders thereof into which the exhaust steam is conveyed
for keeping the cylinder warm.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Park in the Great Seal Patent Office on the 11th
October 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
PARK, of Bury, in the County of Lancaster, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourteenth day of April, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said James Park, Her special license that I, the said James Park, my
executors, administrators, and assigns, or such others as I, the said James
Park, 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 "CERTAIN IMPROVEMENTS
IN OR APPLICABLE TO STEAM ENGINES," upon the condition (amongst others)
that I, the said James Park, 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 James Park, 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,
(that is to say) :-
The first part of my Invention is chiefly applicable in works where several
steam engines are employed, and it consists in connecting by suitable pipes
the whole or any number of such steam engines to one condensing apparatus,
by this means each steam engine can be worked as a condensing engine, while
the construction remains simple, as in high-pressure engines.
The second part of my Invention is particularly applicable to the steam

page_text: engines coupled direct to the rag machines employed in the manufacture of
paper pulp, as described in the Specification of Letters Patent granted to me
on the Twenty-fourth day of May, One thousand eight hundred and fifty-five,
Number 1170, and it consists in applying a condensor and air pump to such
engines, and in casting or otherwise making a jacket round the cylinders
thereof, into which the waste or exhaust steam is conveyed for keeping the
cylinder warm.
And in order that my Invention may be fully understood and readily
carried into operation, I will proceed to describe the accompanying Sheet of
Drawings, reference being had to the figures and letters marked thereon.
In Fig. 1, a, b, and c represent three steam engines which are capable
of being worked independently of each other, and may. be employed for driving
rag machines for manufacturing paper pulp, or for any other purpose. The
steam engine a is provided with the air pump d and condensor e, which is in
communication with the cylinders of all the steam engines by means of the
main pipes f, f, and branch pipes a', ', and c', each of which is provided with
an injection tap a², 62, and c; the object of these taps is to supply the water
necessary for condensing the steam from each engine.
The condensing apparatus must be sufficiently large to exhaust the steam
and air from all the steam engines in communication with it, and I wish to
remark that although I have only shewn three steam engines connected to the
condensing apparatus, any other number may be so connected according to the
magnitude of the works, or the number of engines working in proximity to each
other. By thus connecting two or more steam engines to one condensing
apparatus a considerable saving is effected, as the construction of each steam
engine remains simple, as in the usual high-pressure engines, while the ad-
vantages of the condensing engine are retained.
Fig. 2 represents a steam engine coupled direct to a rag machine employed
in the manufacture of paper pulp, as described in the Specification of Letters
Patent granted to me on the Twenty-fourth day of May, One thousand eight
hundred and fifty-five, Number 1170. To the crank shaft g of the steam
engine is fixed a pinion g¹ gearing into the wheel h¹ on the shaft h, on which
is a crank for working the air pump d, this air pump produces the requisite
vacuum in the condensor for exhausting the steam and air from the cylinder of
the steam engine. I wish to remark here that the air pump may be placed
in any other convenient position, and worked in any other suitable manner.
Fig. 3 is a section through the cylinder of a steam engine; i is the cylinder
and j the jacket, which is cast with or otherwise connected to it. The exhaust
steam from the steam cylinder is admitted in this jacket and passes off to the

page_text: condensor through the branch k, thereby keeping the cylinder warm to prevent
the radiation of heat, or the waste steam from non-condensing steam engines
may be applied in the same manner.
Having thus stated the nature of my Invention, and described the manner
of performing the same, I declare that I claim,―
First, the connecting of two or more steam engines to one condensing
apparatus.
Secondly, the application of a condensor and air pump to a steam engine
when coupled direct to a rag machine.
And lastly, the application of the waste or exhaust steam for heating the
cylinders of steam engines.
In witness whereof, I, the said James Park, have hereunto set my hand
and seal, this Ninth day of October, in the year of our Lord One
thousand eight hundred and sixty-two.
JAMES PARK.