IMPROVE- MENTS IN APPARATUS FOR WASHING LIGHTING OR OTHER GASES
Year: 1882

page_text: LETTERS PATENT to Henri Adrien Bonneville, of the British and Foreign
Patent Offices, 8, Rue de la Chaussée d'Antin, Paris, France, and 90, Cannon
Street, in the City of London, Patent Agent, for an Invention of "IMPROVE-
MENTS IN APPARATUS FOR WASHING LIGHTING OR OTHER GASES." A com-
munication from Louis Auguste Chevalet, of Troyes, in the Republic of France,
Chemist.
COMPLETE SPECIFICATION filed by the said Henri Adrien Bonneville at
the Office of the Commissioners of Patents on the 25th February 1882.
HENRI ADRIEN BONNEVILLE, of the British and Foreign Patent Offices, 8, Rue
de la Chaussée d'Antin, Paris, France, and 90, Cannon Street, in the City of
London, Patent Agent. "IMPROVEMENTS IN APPARATUS FOR WASHING LIGHTING
OR OTHER GASES." A communication from Louis Auguste Chevalet, of Troyes, in
the Republic of France, Chemist.
The Invention relates to a new or improved means of practically and chemically
washing gases used for lighting purposes as well as all gases, whether arising from
the calcination or combustion of animal, vegetable, or mineral matters, or from
unhealthy manufactures, and to obtain or extract from them their condensable
matters, such as ammonia, acetic, chlorhydric, nitric, sulphuric, carbonic, and
sulphydric acids, tar, and other useful products which have been lost beforetime,
and consists of two apparatuses, which in combination form one complete apparatus,
or which can be used separately or successively, according as the gases to be treated
are more or less charged with ashes, soot, or any matter likely to clog the
apparatus.
The first apparatus is intended for gases of the nature last mentioned; it is
represented in the accompanying Drawings, in which Fig. 1 is a top plan view,
Fig. 2 is a longitudinal elevation, Fig. 3 sectional views through the lines F, G, and
I, J, Fig. 1, and Fig. 4 an elevation of part of the washing grid enlarged.

page_text: This apparatus consists of a large reservoir A. divided into arched or bell shaped
passages B supported on one side by a transverse partition C, dividing the reservoir
into two unequal parts; D, D, are copper or iron plates (perforated by holes 2 to 4 milli-
metres wide by 50 to 60 millimetres long) fixed at the lower end of each partition,
and dipping in the water up to E in the form of a grid, across which the gas
drawn from the calcining or combustion furnaces through the inlet passages F in
jets or threads by means of a suction or similar apparatus cools, and by friction
with the bars of the grid deposits whatever soot or other impurities it may have
brought along with it, and escapes or is conducted through the outlet pipe G to
the second apparatus.
The height of the water in the reservoir is regulated by means of a pressure
guage H through a feeding pipe not shewn in the Drawing.
The second apparatus, which is of rectangular form, can be employed alone if
the gases to be treated are cold or nearly so, and but slightly charged with solid
particles, is illustrated in the accompanying Drawings, in which Fig. 5 is an
horizontal section by the line C, D, Fig. 6, Fig. 6 an elevation of the same,
A, B, C, D, and E, F, E', F', being front views, C, D, E, F, a sectional view by the
line I, K, Fig. 5, and E, F, G, H, a sectional view by M, N, Fig. 5, Fig. 7 an
elevation of the same, O, P, R, S, and T, U, V, X, being side views, and R, S, T, U,
a sectional view by Y, Z, Fig. 5.
1, 1, 1, are perforated plates sliding upon inside brackets, and placed horizontally
one above the other; 2, 2, 2, unperforated plates sliding upon the perforated ones,
so as to close or leave open a larger or smaller number of the holes, according as
the gases to be treated are more or less abundant.
These plates rest in slits in a sheet of india rubber 3, 3, 3, which is fixed by a
metallic plate 4, 4, 4; 5, 5, 5, are receptacles, in which the lower ends of the
overflow pipes 6, 6, 6, are dipped; they are provided with delivery taps 7, 7, 7.
These receptacles, as well as the overflow pipes, are separate and independent of
the perforated plates.
The gases forced into the said apparatus directly from the apparatuses or places
in which they are generated, or after having passed through the first apparatus
above described by the inlet pipe 8, ascend through the perforated plates, and
escape by the appor opening 9, from whence they pass through a chimney or into
a gas holder.
As the gas rises it is washed by a small stream of pure or acidulated water
coming through the inlet pipe 10, and spreading successively over the several
perforated plates, on the surface of which it is kept up by the ascending current
of gas, the excess of water flowing down through the overflow pipes saturated
more or less with the matters to be collected or eliminated, and it runs off by the
orifice 11, at which point its treatment by concentration, crystallization, or other-
wise commences.
A differential pressure guage 12, whose branch tubes terminate one above the
perforated plate and the other underneath the said plate, indicates the pressure in
each compartment, which is regulated by uncovering or stopping up the perforations
in the plates 1, 1, 1, by the plates 2, 2, 2.
These apparatuses are constructed of various materials, according to the nature
of the gases to be treated.
Having described the said Invention, and the manner in which the same is be
performed, I wish it to be understood that I do not confine myself to the precise
details above mentioned and represented in the accompanying Drawings, as these
may be obviously modified without departing from the principle of the Invention,
but what I claim and desire to secure by the said Royal Letters Patent is,―
I. In reference to the first apparatus, 1st, the grids or perforated plates D
immerged vertically in the water, substantially and for the purposes above
described; 2nd, the arched chambers or passages B increasing the washing surface
in a limited space.

page_text: 5
II. In reference to the second apparatus, 1st, the looseness of the perforated
plates 1; 2nd, the covering plates 2; 3rd, the independent action of the receptacles 5
and the overflow pipes 6; 4th, the delivery taps 7; 5th, the use of the differential
pressure guage 12.
In witness whereof, I, the said Henri Adrien Bonneville, have hereto set my
hand and seal, this Twenty-fifth day of February, in the year of our
Lord One thousand eight hundred and eighty two.
TT
- ז DANTTROYT
H. BONNETT
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