CERTAIN NEW AND USEFUL IMPROVE- MENTS IN THE CONSTRUCTION OF STEAM BOILERS
Year: 1874

page_text: LETTERS PATENT to Henri Adrien Bonneville, of the British and
Foreign Patent Offices, 18, Rue de la Chaussée d'Antin, Paris,
France, and 6, Piccadilly, in the County of Middlesex, Patent
Agent, for the Invention of "CERTAIN NEW AND USEFUL IMPROVE-
MENTS IN THE CONSTRUCTION OF STEAM BOILERS." -A communication
from Dominique Artige, residing at Grenelle, France, Machine
Maker.
"
Scaled the 18th June 1875, and dated the 23rd December 1874.
PROVISIONAL SPECIFICATION left by the said Henry Adrien
Bonneville at the Office of the Commissioners of Patents, with
his Petition, on the 23rd December 1874.
I, HENRI ADRIEN BONNEVILLE, of the British and Foreign Patent
Offices, 18, Rue de la Chaussée d'Antin, Paris, France, and 6, Piccadilly,
in the County of Middlesex, Patent Agent, do horeby declare the nature
of the said Invention for "CERTAIN NEW AND USEFUL IMPROVEMENTS IN
THE CONSTRUCTION OF STEAM BOILERS," communicated to me by Dominique

page_text: Artige, a person resident at Grenelle, France, Machine Maker, to be as
follows:-
The Invention relates to increasing the durableness of stationary
steam boilers, to diminishing their volume and price, to rendering them
easier to manage and repair, to obtaining a better result from them, and t
to economising the fuel.
The Invention consists in separating the bodies of the heating and
steam boilers one from another. For this purpose the bodies of the
heating boilers are placed in the lower part, and are connected one with
another, and with the bodies of the steam boilers above only through 1
pipes.
The domes of the steam boilers are connected together by steam
pipes, which serve at the same time to keep them apart. The safety
valves are fixed on the end domes. The steam feed cock and the water
guage provided with its steam whistle are fixed the former on the upper 1
part of the central steam dome and the latter on the lower part of the
same. By means of these different arrangements cuttings and joints
which diminish the strength are dispensed with in the boilers, and thus
a fertile cause of explosions is avoided. The steam domes are surrounded
by a non-conducting casing so as to prevent loss of heat.
2
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henri Adrien Bonneville in the Great Seal Patent
Office on the 21st June 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
ADRIEN BONNEVILLE, of the British and Foreign Patent Offices, 18, Ruo 2
do la Chaussée d'Antin, Paris, France, and 6, Piccadilly, in the County
of Middlesex, Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-third day of December, in the year
of our Lord One thousand eight hundred and seventy-four, in the thirty- 3
eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto mo, the said Henri Adrien Bonneville, Her special
licence that I, the said Henri Adrien Bonneville, my executors, adminis-

page_text: trators, and assigns, or such others as I, the said Henri Adrien
Bonneville, 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, usc, exercise, and vend, within the United Kingdom of
Great Britain and Ireland, the Channel Islands, and Isle of Man, an
Invention for "CERTAIN NEW AND USEFUL IMPROVEMENTS IN THE CON-
STRUCTION OF STEAM BOILERS," communicated to me by Dominiquo
Artige, a person resident at Grenelle, France, Machine Maker,
upon the condition (amongst others) that I, the said Henri Adrien
Bonneville, my exccutors or administrators, by an instrument in writing
under my, or their, or one of their hands and scals, 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.
NOW KNOW YE, that I, the said Henri Adrien Bonneville, 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 :—
The Invention relates to increasing the durableness of stationary
steam boilers, to diminishing their volume and price, to rendering them
easier to manage and repair, to obtaining a better result from them, and
to economising the fuel.
The Invention consists in separating the bodics of the heating and
steam boilers one from another. For this purpose the bodies of the
heating boilers are in the lower part, and are connected one with
another and with the bodics of the steam boilers above through pipes
only.
The domes of the steam boilers are connected together by steam
pipes, which serve at the same time to keep them apart. The safety
valves are fixed on the end domes. The steam feed cock and the water
guage provided with its steam whistle are fixed the former on the upper
part of the central steam dome and the latter on the lower part of the
same. By means of these different arrangements cuttings and joints
which diminish the strength are dispensed with in the boilers, and thus

page_text: a fertile cause of explosions is avoided. The steam domes are surrounded
by a non-conducting casing so as to prevent loss of licat.
Having thus briefly described the said Invention, I now proceed to
do so more particularly, reference being had to the accompanying Sheets
of Drawings, which show different applications of the principle on which
the said Invention is based, as applied to boilers arranged and con-
structed according to the Invention.

page_text: Fig. 1 represents a longitudinal sectional elevation of the whole
generator showing the steam generators A and their nozzles D, to which
is fitted the T pipe E connecting the steam generators with one of the
lower boilers B.
Fig. 2 represents a longitudinal horizontal section of the lower
bodics B, connecting T pipe E with two steam generators A, tho
connecting pipe P' of one of the lower bodies and their connection
between themselves by means of pipe P, the other body provided at its
end with stop clack valve box L and the feed pipe M.
Fig. 3 represents a longitudinal horizontal section of the steam
generators A and the T pipe E.
Fig. 4 represents a transversal section through the line J, K, showing
the arrangement of the steam generators A and the lower boilers B.
Fig. 5 is a front view of the fire-box with its two doors allowing it to
be charged by either, and showing the arrangement of the steam
generators A supported by the front of the furnace.
Fig. 6 represents a transverse section through the line J¹, K³,
showing the communication between the flucs.
Fig. 7 represents an end view of the generator with the special
arrangement of the outside pipes between the bodies, the feeding of the
generators and the pipe I leading to the chimney.
Sheet 2 shows a generator constructed with five bodies, of which two
are steam generators, and two lower boilers proper.
Fig. 1 represents a longitudinal sectional clevation of the whole of the
generator.
Fig. 2 is a plan view of the connecting pipes of the steam
generators A.
Fig. 3 is a longitudinal sectional plan of the lower bodies B, one of
which is provided at its end with a feed pipe L to receive the stop clack
valve box.
Fig. 4 is a transverse section through the line J, K.
Fig. 5 is a front view of the firc-box.
Fig. 6 is a transversal section through the line J', K', showing the
communication between the flues.
Fig. 7 is an end view of the generator.

page_text: Sheet 3 shows the arrangement of a generator constructed with six
bodies above each other, two and two.
Fig. 1 is a longitudinal sectional elevation showing the steam
generators A with their nozzles D, to which the T pipe E is fitted,
connecting the steam generators and one of the lower middle bodies,
the pipe P connecting the two lower middle bodies, the pipe P" con-
necting one of the lower bottom bodies and the other lower middle
body, and the pipe P' connecting the two lower bottom bodies.

page_text: which is filled with sand or any other non-conducting material, pro-
venting the radiation of heat.
· Fig. 3 is a plan view of the safety valves U and the steam cock V.
Fig. 4, a front view at the back of the casing of the domes showing
the digestors, allowing the arm to be passed through in order to fix the
bolts holding the safety valves in the domes.
Fig. 5, a front view of the steam generators A and the arrangement
of the water level brackets B and the steam connecting pipe C.
Fig. 6, a modification of the preceeding arrangement, which consists
of a single water level bracket B used at the same time as a connecting
pipo.
Fig. 7, a transverse section of the second arrangement showing the
three steam generators A, the two side domes R provided with the safety
valves U at their top, the middle tubular column S fitted on the central
dome R' provided with the square steam cock V special to the improved
generators, and the two steam connecting pipes T, which are fitted on
the nozzles of the safety valve and of the middle tubular column, thus
used as cross pieces to keep the domes apart. The domos are surrounded
as in the first arrangement.
Fig. 8 is a longitudinal section of the steam generators A. At the
lower part of the central dome R the water level Z is fitted, provided
with its alarm whistle and float mechanism. This apparatus must be
applied also to the two and to the four steam generators, thus preventing
any joint in the steam generators.
Fig. 9 is a plan view of the arrangement of the connecting pipes of
the domes.
Fig. 10, a front view of the back of the casing of the domes and of the
digesters L.
Fig. 11, a front view of front of the steam generators A showing the
water level brackets B on the side steam generators, and the two steam
connecting pipes C.
Fig. 12 is a modification of the precedeing arrangement of the two
water level brackets B being used as a connecting pipe.
Sheet 14 shows the whole of the arrangement of the domes for four
steam generators with their safety apparatus and steam distribution, and

page_text: render them easier to manage and repair, thus obtaining a better result
from them, as well as rendering explosions much less dangerous, as all
the bodies cannot get disabled at once.
Having thus described the nature of the said Invention, and the
manner of carrying it into effect, I would have it understood that I do
not confine myself to the precise details above cnumerated, as these may
obviously be modified without departing from the principle of the
Invention, but what I claim and desire to secure by the said Letters
Patent is, in constructing steam generators the diminishing of the large
volume of the steam generators, the multiplying of the heating surfaces
by multiplying and separating the bodies of the heating and steam
boilers, and by connecting them together, substantially as above specified
and illustrated in the accompanying Drawings.
In witness whereof, I, the said Henri Adrien Bonneville, havo
hereto set my hand and scal, this Nineteenth day of Junc,
in the year of our Lord One thousand eight hundred and seventy-
five.