AN IMPROVED, METHOD OF OBTAINING MOTIVE POWER
Year: 1857

page_text: LETTERS PATENT to Richard Archibald Brooman, of 166, Fleet Street,
in the City of London, Patent Agent, for the Invention of "AN IMPROVED,
METHOD OF OBTAINING MOTIVE POWER."-A communication.from Gregoire
Russo.
Sealed the 28th July 1857, and dated the 7th February 1857.
1
PROVISIONAL SPECIFICATION left by the said Richard. Archibald
Brooman at the Office of the Commissioners of Patents, with his
Petition, on the 7th February 1857.
I, RICHARD ARCHIBALD BROOMAN,' of 166; Fleet Street, in the City of
London, Patent Agent, do hereby declare the nature of the said Invention
for" AN IMPROVED METHOD OF OBTAINING MOTIVE POWER," (communicated to me
by Gregoire Russo; a foreigner residing abroad;) to be as follows:
This Invention consists in obtaining, motive power by vaporizing mercury,*
condensing the vapour, and causing the mercury from such condensation to
descend a tube and drive a turbine or other similar apparatus; from which the
motive power is applied to any purpose required. After. driving the turbine
the mercury falls into a vessel or chamber, from whence, it is reconveyed into
the boiler in which it was vaporized.:

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Archibald Brooman in the Great Seal Patent Office
on the 7th August 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of London, Patent
Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventh day of February, in the year of our Lord
One thousand eight hundred and fifty-seven, in the twentieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Richard Archibald Brooman, Her special licence that I, the said
Richard Archibald Brooman, my executors, administrators, and assigns, or
such others as I, the said Richard Archibald Brooman, my executors, adminis-
trators, 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 "AN IMPROVED METHOD OF OBTAINING MOTIVE POWER," a commu-
nication from Gregoire Russo, a foreigner residing abroad, upon the condition
(amongst others) that I, the said Richard Archibald Brooman, my execu-
tors 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 per-
formed, 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 Richard Archibald Brooman, 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 thereof, reference being had to thei Drawings hereunto
annexed; that is to say:-
This Invention consists in obtaining motive power by vaporizing mercury,
condensing the vapor, and causing the mercury resulting from such con-
densation to descend a tube and drive a turbine or other similar apparatus
from which the motive power is taken to be applied to any purpose required.

page_text: After driving the turbine the mercury falls into a vessel or chamber, from
whence it is reconveyed into the boiler in which it was vaporized.
The Drawings hereunto annexed represent the manner in which the
Invention may conveniently be carried into effect. Figure 1 being a vertical
longitudinal section of the apparatus employed; Figure 2 a front elevation
of the same, partly in section; and Figure 3 a plan of the same, partly
in section. A is a furnace from which the chimney A¹ rises. Over the
furnace A is placed the retort or boiler B, which contains a given quantity
of mercury, and which is exposed at its lower side to the action of the fire
of the furnace; D is a pipe or tube through which the vapour of mercury
ascends as it is generated, and which is kept heated by the gases ascending
from the furnace; E is a valve or damper, worked by the handle E¹, in
order to regulate the temperature of the furnace; F is a bent pipe, through
which the vapour of mercury passes from the pipe D into the worm G, which
is immersed in cold water contained in the vessel H, in order that the vapor
may be thereby condensed, leaving a vacuum above it. The mercury resulting
from the condensation passes out of the worm G by the orifice I into the
reservoir K, from which it falls through the pipe L into the receiver O.
The pipe L is furnished with the regulating valve M. From the receiver O the
mercury is conducted by the distributor P to the vanes of the turbine Q (see
the section, Figure 4) which it sets in motion, thereby imparting motion to the
vertical shaft Q', from which the power may be led away to produce any
required effect. After passing through the turbine, the mercury enters the
cylinder R, from which it is conducted down by the pipe T to the retort or
boiler B, escaping into it near the lower side at U. The pipe T is furnished
with a valve S, by means of which the supply of mercury to the retort or
boiler may be regulated.
The apparatus herein-before described, and represented in the Drawings
hereunto annexed, may be used with advantage for carrying this Invention into
effect, but I do not confine myself to it, as any other suitable arrangement may
be employed for the purpose.
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 by vaporizing mercury, condensing the vapor,
and causing the mercury resulting from such condensation to descend a tube
and drive a turbine or other similar apparatus, from which the motive power
is taken to be applied to any purpose required.

page_text: Secondly, the employment for the above purpose of the apparatus herein-
before described, and represented in the Drawings hereunto annexed, in the
manner herein-before described.
In witness whereof, I, the said Richard Archibald Brooman, have
" hereunto set iny hand and seal; this Sixth day of August, One
thousand eight hundred and fifty-seven."