CERTAIN IMPROVEMENTS IN THE CONSTRUCTION OF STEAM BOILERS.
Year: 1855

page_text: LETTERS PATENT to Peter Armand le Comte de Fontaine Moreau, of
the English and Foreign Patent Office for Inventions, 4, South Street,
Finsbury, London, and 39, Rue de l'Echiquier, Paris, for the Invention
of "CERTAIN IMPROVEMENTS IN THE CONSTRUCTION OF STEAM BOILERS.".
A communication from Monsieur S. Boutigny, of Paris, France.
Sealed the 18th September 1855, and dated the 10th April 1855.
PROVISIONAL SPECIFICATION left by the said Peter Armand le Comte
de Fontaine Moreau at the Office of the Commissioners of Patents, with
his Petition, on the 10th April 1855.
I, PETER ARMAND le Comte DE FONTAINE MOREAU, of the English &
Foreign Patent Office for Inventions, 4, South Street, Finsbury, London, &
39, Rue de l'Echiquier, Paris, do hereby declare the nature of the Invention
of "CERTAIN IMPROVEMENTS IN THE CONSTRUCTION OF STEAM BOILERS" to be as
follows, that is to say:-
The Invention communicated to me consists in the employment of metallic
diaphragms in steam generators for hastening the process of transforming the
water into steam.
The generator consists of a water boiler & steam boiler, the latter being
placed above & fitted internally with several rectangular metallic grooved or
plain diaphragms. The water boiler is provided with a pipe of the same

page_text: diameter as the boiler, & the width of the steam boiler is one-fourth greater
than that of the water boiler. The feeding of the boiler should be kept up &
regulated so as to supply only the necessary quantity of water which the appa-
ratus are able to transform into steam in a given time. The furnace should be
constructed in such manner that all the surface of the boiler should be heated
direct.
A, A, water boiler; a, purge pipe; B, B, tube forming a communication
between the water boiler & steam boiler C, C; b, b, tube for indicating the
level of water in the tube B, B; C, safety valve; C', another safety valve;
d, whistle; d', alarm whistle; e, e, feeding tube; f, f, gauge tube; g, g, ingress
of the steam; h, h, h, h, h, h, perforated rectangular metallic diaphragms for
dividing the water, & thus hastening its reduction to steam.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Peter Armand le Comte de Fontaine Moreau in the Great
Seal Patent Office on the 6th October 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PETER
ARMAND le Comte DE FONTAINE MOREAU, of the English and Foreign Patent
Office for Inventions, 4, South Street, Finsbury, London, and 39, Rue de
l'Echiquier, Paris, send.greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Tenth day of April, in the year of our Lord
One thousand eight hundred and fifty-five, in the eighteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Peter Armand le Comte de Fontaine Moreau, Her special license,
that I, the said Peter Armand le Comte de Fontaine Moreau, my exccutors,
administrators, and assigns, or such others as I, the said Peter Armand
le Comte de Fontaine Moreau, my exccutors, 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
of "CERTAIN IMPROVEMENTS IN THE CONSTRUCTION OF STEAM BOILERS," a communi-
cation from Monsieur S. Boutigny, of Paris, France, upon the condition
(amongst others) that I, the said Peter Armand le Comte de Fontaine

page_text: Moreau, by an instrument in writing under my hand and seal, should particu-
larly 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 Peter Armand le Comte de Fontaine
Moreau, 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, reference being had to the
Drawing bereto annexed, and to the figures and letters marked thereon,
that is to say:-
The improvements consist in the employment of one or two heating
chambers surmounted by one or more steam boilers, the latter being fitted
with metallic diaphragms for enlarging the heating surface, and thereby
obtaining a more rapid production of steam.
The Figure of the annexed Drawing shews a single heating and steam
boiler. A, A, water boiler; a, purge pipe; B, B', tubes connecting the water
boiler with the steam boiler; b, tube indicating the level of water in the
connecting tubes B, B', and in the steam boiler; C, C, C, steam boiler;
c and c', safety valves; d, whistle; d, alarm whistle; e, feed pipe; f, steam
guage pipe; g, steam escape pipe; h, h, h, rectangular sheet-iron diaphragms,
which may be fluted and perforated or not from top to bottom or made of
wire gauze. Should the diaphragms be made of non-perforated sheet-iron,
they are put in communication by means of holes, the edges of which are
raised about an inch to permit the water to be kept up on the diaphragms
at the same height as the edges of the holes. The diaphragms serve to divide
the water and facilitate its reduction into steam; they also serve to retain tho
calcareous or other matters. The thickness of the sides of the boilers must
be calculated to allow the working of the generator at a pressure of five to
ten atmospheres.
The feeding must be permanent and sufficient to supply the quantity of
water consumed during a given time. The furnace should be built so that
the whole surface of the water boiler is converted by it into a direct heating
surface. The flame, escaping from the furnace through an opening on the
top and bottom, then passes up the under part of the steam boiler, comes down
one of its sides, and after returning over the other side enters the flue.
The water level should not go below the connecting tube; it may, however,
without inconvenience go an inch or two above its summit, so as to leave the
steam boiler nearly empty, except the water which falls from diaphragm to

page_text: -diaphragm on the bottom of the steam boiler in its way to the water boiler at
boiling point. Thus it will be seen that the steam boiler performs the function
of generator, overheater, and steam box. In some cases it will be advan-
tageous to use a boiler A, on which a certain number of upper boilers with
vertical diaphragms can be placed.
And having..now described the nature of the said Invention, and the
manner in which the same is to be performed, I wish it to be understood that
I do not.confine myself to the precise details herein-before described, reserving
to myself the right of modifying the construction thereof; but what I claim
,is, the employment of ordinary water boilers or heaters, surmounted by one or
several steam boilers provided with diaphragms, for enlarging the heating
surface of, the water, and obtaining a more rapid production of steam, as
herein-before described, and referred to in the Figure of the Drawing..
In witness whereof, I, the said Peter Armand le Comte de Fontaine
Moreau, have hereunto set my hand and seal, this Third day of
October; in the year of our Lord One thousand eight hundred and
fifty-five.
L DE FONTAINE MOREAU. (L.8.)