IMPROVE-- MENTS IN OBTAINING MOTIVE POWER." MENTS IN OBTAINING MOTIVE POWER
Year: 1872

page_text: LETTERS PATENT to James Young, of Kelly, in the County of
Renfrew, North Britain, Gentleman, for the Invention of "IMPROVE--
MENTS IN OBTAINING MOTIVE POWER."
MENTS IN OBTAINING MOTIVE POWER."
Scaled the 29th November 1872, and dated the 31st July 1872.
PROVISIONAL SPECIFICATION left by the said James Young at the
Office of the Commissioners of Patents, with his Petition, on the
31st July 1872.
I, JAMES YOUNG, of Kelly, in the County of Renfrew, North Britain,
Gentleman, do hereby declare the nature of the said Invention of
IMPROVEMENTS IN OBTAINING MOTIVE POWER," to be as follows, that is to
66
say:
-
This Invention relates to the obtainment of motive power from the
vapours given off by the volatile hydrocarbons obtained from petroleums.
and paraffin oils. In carrying the Invention into practice the said
hydrocarbons are contained in boilers, wherein they are heated so as to
volatilize the liquid hydrocarbons into vapours under any required*

page_text: degree of pressure, and in this state the vapours are admitted to the
cylinders of engines-analogous to those of ordinary steam engines so as
to act upon pistons therein. The vapours in exhausting from the
cylinders of the engines may pass off into the atmosphere, but it is
preferred to pass them into a condenser so that they may be collected
in the liquid state and carried back into the boiler for being reutilized.
The vapours of hydrocarbons may also be superheated when used in
the manner and for the purpose herein-before described.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Young in the Great Seal Patent Office on
the 30th January 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
YOUNG, of Kelly, in the County of Renfrew, North Britain, Gentleman,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirty-first day of July, in the year of
our Lord One thousand eight hundred and seventy-two, in the 36th
year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said James Young, Her special license that
I, the said James Young, my executors, administrators, and assigns,
or such others as I, the said James Young, my executors, adminis-
trators, or 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 OBTAINING MOTIVE
POWER," upon the condition (amongst others) that I, the said James
Young, by an instrument in writing under my hand and seal, 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.
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NOW KNOW YE, that I, the said James Young, do hereby declare
the nature of my said Invention, and in what manner the same is to

page_text: be performed, to be particularly described and ascertained in and by
the following statement, that is to say :—.
My said Invention which relates to the obtainment of motive power
from the vapours given off by the volatile hydrocarbons obtained from
petroleums and paraffin oils consists as follows:-
According to one mode of practising my Invention a sufficient
quantity of the aforesaid hydrocarbons is placed in a boiler and heated
so that vapour is generated under pressure. This vapour is admitted to
the valve chest and cylinder or cylinders of a motive-power engine
constructed and arranged analagous to an ordinary steam engine. The
slide or other valve or valves distribute the hydrocarbon vapour to each
side of the piston or pistons alternately, allowing the alternate exhaust
of vapour therefrom, the exhaust vapour being condensed. When the
condenser used is a surface condenser the exhaust vapour is passed
thereinto and condensed, so that it is or may be revaporised and used
in the cylinder or cylinders continuously, any loss from leakage being
made up from time to time. When the condenser used is an injection
condenser, the hydrocarbon vapour when condensed floats on the surface
of the injection water, and is pumped off for revaporization as required.
According to another mode of practising my Invention, the hydro-
carbon vapour is employed so as to obtain useful effect or motive power
from the residual heat of the exhaust steam of a steam engine. This
is effected by causing the exhaust steam from the cylinders of one or
more steam engines to pass into, around, or through a boiler or vessel
containing the hydrocarbons to be vaporised, but in such a way that
there shall be no contact or mixture of the exhaust steam with the
hydrocarbons. The heat of the exhaust steam is imparted to the said
hydrocarbons, whose boiling point in this case is lower than the boiling
point of water, and so generates vapour from them under pressure,
which is used to operate one or more engines combined with the engine
or engines from which the exhaust steam used for vaporising the hydro-
carbons is obtained, after the manner of Du Trembley's ether engine, or
it may operate an engine separate therefrom. The hydrocarbon vapour
so generated, after exhausting from the cylinder or cylinders in which it
operates passes into a condenser to be again used.
According to another mode of practising my Invention, I use two
hydrocarbons having different boiling points, and cause the residual heat

page_text: of the vapour of that hydrocarbon which has the higher boiling point
as it is exhausted from the cylinder or cylinders of the motive power
engine or engines in which it operates to pass into a surface condenser
or boiler through or amongst the hydrocarbon having the lower boiling
point, without contact therewith, thus the residual licat of the exhaust
vapour of the hydrocarbon having the higher boiling point generates
vapour under pressure from that which has the lower boiling point,
which vapour is also caused to operate in the cylinder or cylinders of a
motive power engine, on exhausting from which it passes into a con-
denser to be again used.
Having now described and particularly ascertained the nature of my
said Invention, and the system, mode, or manner in or under which the
same is or may be used or practically carried into effect, I would observe
in conclusion, that what I consider to be novel and original, and
therefore claim as the Invention secured to me by the herein-before
in part recited Letters Patent is, the employment of the vapours of
hydrocarbons obtained from petroleums and paraffin oils to actuate
motive power engines in either manner herein-before described.
In witness whereof, I, the said James Young, have hereunto set my
hand and seal, this Twenty-ninth day of January, One thousand
eight hundred and seventy-three.