IMPROVE- MENTS IN GENERATING STEAM FOR PRODUCING MOTIVE POWER OR HEAT
Year: 1852

page_text: LETTERS PATENT to Julien François Belleville, Manufacturer, of
Paris, in the French Republic, for the Invention of "IMPROVE-
MENTS IN GENERATING STEAM FOR PRODUCING MOTIVE POWER OR
HEAT."
Sealed the 4th May 1853, and dated the 12th November 1852.
PROVISIONAL SPECIFICATION left by the said Julien François
Belleville at the Office of the Commissioners of Patents, with
his Petition, on the 12th November 1852.
I, JULIEN FRANÇOIS BELLEVILLE, Manufacturer, of Paris, in the
French Republic, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN GENERATING STEAM FOR PRODUCING MOTIVE POWER
OR HEAT" to be as follows:-
My means of generating steam consists of forcing water by means
of a force pump or otherwise into a reservoir containing air, from
whence (when it has attained a pressure regulated at pleasure by
a valve) it passes into a spiral tube of small diameter (heated by
means of a furnace in the centre of the spiral at the lower part) in
such a manner that one portion of the water injected becomes con-
verted into steam by circulating in one part of the spiral, then
ineets a further portion of the water as it is injected at another part
of the spiral, and the two together pass through the latter part of
the heated spiral tube, the steam generated being taken off at the
Nipper end.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Julien François Belleville in the Great Seal
Patent Office, on the 5th May 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
JULIEN FRANCOIS BELLEVILLE, Manufacturer, of Paris, in the French
Republic, send greeting.
WHEREAS Her Most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of November, in the
year of our Lord One thousand eight hundred and fifty-two, in the
sixteenth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Julien Francois Belleville,
Her special licence that I, the said Julien Francois Belleville, my
executors, administrators, and assigns, or such others as I, the said
Julien Francois Belleville, 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 GENERATING STEAM
FOR PRODUCING MOTIVE POWER OR HEAT," upon the condition (amongst
others) that I, the said Julien Francois Belleville, 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 imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that 1, the said Julien Francois Belleville, do
hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascer-
tained in and by the following statement thereof (that is to say):
My means of generating steam consists of forcing water by means
of a force pump or otherwise into a reservoir containing air, from
whence (when it has attained a pressure regulated at pleasure by a
valve) it passes into a spiral tube of small diameter, heated by
means of a furnace in the centre of the spiral at the lower part, in

page_text: such a manner that one portion of the water injected becomes con-
verted into steam by circulating in one part of the spiral, then meets
a further portion of the water as it is injected at another part of
the spiral, and the two together pass through the latter part of the
heated spiral tube, the steam generated being taken off at the upper
end. And in order that my said Invention may be more fully un-
derstood, and readily carried into effect, I will proceed to describe
the Drawing hereunto annexed.
DESCRIPTION OF THE DRAWING.
Figure 1, shows a transverse section, Figure 2, a longitudinal
section, and Figure 3, a horizontal section of the apparatus arranged
according to my Invention. A, is a vessel containing air, into
which water is forced by a pump through the tube C, and the cock
D, until the pressure in the vessel A, is equal to that on the valve
B, (shown at Figure 4,) which is pressed on by a spring c, through
the spindle d, on which is formed a screw which works through the
bar e, so that by turning the spindle d, the spring is compressed to
an extend indicated by the bar e, on the graduated pillars a, a, which
are connected together at the top by a cross piece b, as shewn.
When the quantity of water supplied by the pipe C, is more than
sufficient to maintain the desired pressure in the apparatus, the
excess will escape by the valve B; and I prefer to arrange the appa-
ratus in such a manner that the supply of water through the tube
C, shall be always in excess of the consumption from the tube C.
When the upper cock at E, is open, the water enters at the lower
part of spiral F (which is best constructed of rough iron); and
water may at the same time be injected into the upper spirals I, and
J, by a similar feed pipe C; but as it is not essential to my Inven-
tion, I have shewn the simplier arrangement where water is injected
only at the point N, into the spiral F.
The spirals F, I, and J, are enclosed in brickwork, as shewn at G,
and B, so as to form a furnace and chimney, the spiral F, being
enclosed in the former, and I, and J, in the latter, as shewn. The
water when injected circulates in the spiral F, till is converted into
vapour, then rises in the spirals I, and J, to the point K, where the

page_text: dry steam is taken off for use. The tube P, is placed so as to retain
any solid impurities which may be carried over with the steam, and
which are ejected at intervals by the cock Q. I prefer, when the
water is converted into vapour in the spiral F, to rise the vapour
to the point K, directly where the vapour divides into two parts,
10
one of which descends by the spiral I, and the other by the spiral J,
to the point O, where the dry steam is taken off for use this method
is shewn in the Drawing.
It will be seen that by the arrangement of apparatus the pressure
in the tubes can never much exceed that on the valve B, for when
the pressure in the spirals is the same as that in the injection tube
C, no more water is introduced, and the generation of steam ceases.
The formation of steam may also be arrested when required by
turning the injection cock at E.
Having thus described the nature of my Invention, and the
manner of performing the same, I would have it understood that I
do not confine myself to the precise details of the arrangement; but
what I claim is, the combination of apparatus herein described for
.generating steam by injecting water into a heated spiral tube.
In witness whereof, I, the said Julien François Belleville, have
hereunto set my hand and seal, this day of April the Twenty-
ninth, in the year of our Lord One thousand eight hundred
and fifty throe
J. F. BELLEVILLE. (L.s.)
Taken and acknowledged by the
within-named Julien François
Belleville at Paris this Twenty-
ninth day of April 1853.
H. B. M. Consul at Paris,
THOMAS PICKFORD. (L.S.)