IM- PROVEMENTS IN STEAM BOILER AND OTHER FURNACES
Year: 1859

page_text: LETTERS PATENT to Pierre Paul Boll, of Paris, in the French Empire,
and Hermann Reger, of Cologne, but now residing at No. 38, Finsbury
Square, in the City of London, Gentleman, for the Invention of "IM-
PROVEMENTS IN STEAM BOILER AND OTHER FURNACES."-A communication
from Antoine Speich, of Strasbourg.
Sealed the 29th July 1859, and dated the 23rd March 1859.
PROVISIONAL SPECIFICATION left by the said Pierre Paul Boll aud
Hermann Reger at the Office of the Commissioners of Patents, with
their Petition, on the 23rd March 1859.
We, PIERRE PAUL BOLL, of Paris, in the French Empire, Gentleman, and
HERMANN REGER, of Cologne, Gentleman, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN STEAM BOLLER AND OTHER FURNACES "
(communicated to us by Antoine Speich, residing at Strasbourg), to be as
follows:-
Our improvements consist in constructing steam boiler and other furnaces
with two or more fire-places in combination with suitable flues, so arranged
that the gases distilled from the fuel fed upon the fire bars of one fire-place,
shall be caused, after traversing the furnace, to enter beneath the fire bars of
another fire-place, and pass up through, the hot fuel upon them being thus
effectually consumed. The fires are fed alternately, and valves or doors are
provided and arranged in such manner that when the'fuel is fed into one fire-
place the gases from it shall be afforded access to the ash-pit of the other
fire-place or fire-places only..

page_text: We do not limit ourselves to any given number of boilers or fire-places, as
the principle of the Invention may be applied under various modifications.
Our improvements produce an entire prevention or consumption of smoke
and a great economy of fuel, say 20 per cent.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Pierre Paul Boll and Hermann Reger in the Great Seal
Patent Office on the 4th August 1859.
.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, PIERRE
PAUL BOLL, of Paris, in the French Empire, and HERMANN REGER, of
Cologne, but now residing at No. 38, Finsbury Square, in the City of London,
Gentlemen, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-third day of March, in the year of our
Lord One thousand eight hundred and fifty-uino, in the twenty-third year
of Her reign, did, for Herself, Iler heirs and successors, give and grant
unto us, the said Pierre Paul Boll and Hermann Reger, Her special license
that we, the said Pierre Paul Boll and Hermann Reger, our executors,
administrators, and assigns, or such others as wc, the said Pierre Paul Boll
and Hermann Reger, our 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 which has
been communicated to us from Antoine Spéich, of Strasbourg, in the Kingdom
of France, for "IMPROVEMENTS IN STEAM BOILER AND OTHER FURNACES," upon
the conditions (amongst others) that we, the said, Pierre Paul Boll and
Hermann Reger, our executors or administrators, by an instrument in writing
under our, 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 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 we, the said Pierre Paul Boll and Hermann
Reger, 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

page_text: the Drawings hereunto annexed, and to the figures and letters marked thereon,
that is to say:-
Our Invention consists in so constructing steam boiler and other furnaces
with two or more fire-places in combination with flues, so arranged that the
gasses liberated from the fuel during the process of combustion on the fire
bars of one fire-place after traversing around the flues surrounding the boiler
or any other apparatus, the gasses are conveyed under the grate bars of the
second furnace, and are passed up through the ignited fuel, thereby burning
up all the combustible gasses, and also all particles of combustible matter that
may have been liberated from the other furnace. Each furnace is fed
alternately, and valves or trap doors are so arranged in the flues that when
the fuel is fed on to one fire-place the gasses are passed around to the opposite
ash-pit or ash-pits, passes up between the grate bars and through the intensely
ignited fuel, thereby burning up all products of combustion save the carbonic
acid gas, which is passed off through the flues and to the chimney. The great
objects obtained is the absence of smoke and a saving of at least twenty per
cent. in the consumption of fuel.
The principles of our Invention is shewn in the Drawings as adapted to
what is termed in England the Woolf boiler, as is shewn in Figures 1, 2, 3, 4, 5.
Figure 1 shews a front view of the boilers and furnace front with the
necessary handles and levers to open and shut the valves or traps, at the
same time to close up or open the doors in front of the ash-pit, this being
necessary to exclude or let in air alternately to each set of grate bars;
Figure 2 is a plan of the boilers and setting; Figure 3 a longitudinal
elevation of the same; Figure 4 a cross section through C, D; and Figure 5
a cross section through E, F. The flame from the left furnace D, touches the
beating surface of the boiler B, as high up as the points marked f, g, as is
shewn in Figure 4, it then raises through the uptake flue m, n, as shewn in
Figure 3. This flue is what is termed a cross flue from f, g, to the flue p, s,
as shewn by the dotted lines in Figure 5, it then travels the whole length of
the flue to the front part of the boiler II, and descends down the flue E to the
valve or trap v, which valve or trap is placed at the side of the ash-pit; this
valve or trap can be opened or shut either for the purpose of letting in the
gasses to pass up through the grate bars E, or by closing it the
gasses will pass
down and out through the flue W to the chimney. The flame from the right
hand furnace E touches in the same manner the whole of the transmitting
surface from II. to L, traverses the whole length S, R, and then ascend another
cross flue V, V, from the right to the left Y, Z, traversing the whole length of
this flue to the front, and then descend down the flue D to the second valve or

page_text: trap Xinto the ash-pit and up through the grate bars D, or if the valvo
or trap be closed the gasses will find its way to the chimney through the
flue W as before; the whole of the arrangement of flues and valves being so
arranged as to effect an alternate change from the right furnace to the left
furnace, and the left furnace to the right furnace.
Our claim is to the peculiar arrangement of flues from left to right and
right to left in connection with the valves and their changing apparatus, as is
fully described and shewn in the Drawings.
Having now described the nature of our Invention, and the manner in
which the same is to be performed, we would remark that we do not confine
ourselves to this form of boiler as our plan can be adapted to almost any form
of furnace or boiler wherein the alternating principle of flues and valves are
adaptable, so the products of combustion are passed through and not over the
fuel; what we claim as of our Invention is, the arrangement of flues and
valves for changing the products of combustion from one furnace to the other
and passing such products up through the ignited fuel of the opposite
furnace and vise versâ as the case may be, which is fully shown in the
Drawings hereunto annexed and described in this Specification.
In witness whereof, we, the said Pierre Paul Boll and Hermann Reger,
have hereunto set our hands and seals, this Second day of August,
in the year of our Lord One thousand eight hundred and fifty-nine.
Witness by,
F. ABBOTT,
HERMANN REGER, S
29, Queen St.
BOLL (PIERRE PAUL). (L.s.)