Improved Apparatus for the Extraction of Cyanides and other Compounds from Illuminating and other Gases.
Year: 1895

page_text: Date of Application, 1st Oct., 1895
Complete Specification Left, 1st July, 1896-Accepted, 1st Aug.,
1896
IRUVIDIONAL DIEUITIVATION.
Improved Apparatus for the Extraction of Cyanides and other
Compounds from Illuminating and other Gases.
I, FRANK LIVESEY of 709 Old Kent Road, London, S.E., Civil Engineer,
do hereby declare the nature of this invention to be as follows:-
The chief object of this invention is to extract the cyanides and other gases from
illuminating gas, but the invention is also applicable to treating other gases, and
for other chemical processes.
The invention consists in an arrangement of apparatus by means of which the
gas to be treated is brought into contact with a film of some suitable liquid, which
will have the effect of extracting and holding the cyanide or other gaseous
impurity.
To this end, the apparatus consists of a water- and gas-tight cylinder of suitable
dimensions, the ends being closed.
The closed ends are provided with bearings for a shaft, on which is mounted a
Beries of frames carrying perforated discs. At the outer peripheries of the discs,
and on both sides thereof, is arranged a series of pockets, which, as the shaft is
rotated in any convenient manner, are caused to dip into the liquor which is
contained in the lower part of the cylinder. The liquor is thus raised to the upper
part, and is gradually emptied onto the discs, down which it trickles, thus presenting
a thin film, through which the gas under treatment has to pass.
The gas enters at one end of the cylinder, and passes out at the other end,
passing through the perforated discs on its way. In this manner, the gas comes
into contact with the, so to speak, running stream of liquor, which takes up and
retains the cyanides or other gases, according to the nature of the liquor used.
The liquor flows into the cylinder by a suitable syphon pipe, an overflow syphon
being also provided; and means are provided, such as a fringe of brush work, to
check too great a flow of gas between the inside of the cylinder and the edges of
the discs.
The liquor is kept in a constant state of agitation by the revolving pockets, so
that any solid matter in the liquid can be kept in a state of suspension.
Dated this 1st day of October 1895.
NEWTON & SON,
Agents for the Applicant.
Improved Apparatus for the Extraction of Cyanides and other
Compounds from Illuminating and other Gases.
I FRANK LIVESEY of 7094, Old Kent Road, London, S.E., Civil Engineer,
do hereby declare the nature of this invention and in what ma her the same is
to be performed, to be particularly described and ascertained in and by the
following statement :-
The chief object of this invention is to extract the cyanides and other gaseous
impurities from illuminating gas, but the invention is also applicable to treating
other gases, and for other chemical processes.

page_text: The invention consists in an arrangement of apparatus by means of which the
gas to be treated is brought into contact with a film of some suitable liquid, which
will have the effect of extracting and holding the cyanogen or other gaseous
impurity.
$
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In the accompanying drawings:-
Fig. 1 is an end elevation, one half having the cover removed; and
Fig. 2 is a longitudinal section.
A is a water- and gas-tight cylinder of suitable dimensions, the ends being closed
by suitable covers A¹ A².
These closed ends A' A' are provided with bearings A³ for a shaft B, on which
is mounted a series of frames C, to carry perforated discs D. These discs D are
bolted to the frames C, as shown in Fig. 2, or are secured thereto in any other
convenient manner. At the outer peripheries of the discs B, are arranged series
of pockets E of suitable shape, which, as the shaft 13 is rotated by any convenient
means, dip into a suitable liquor, which is contained in the lower part of the
cylinder A. The liquor is thus raised to the upper part, and is gradually emptied
onto the perforated discs D, down which it trickles, thus presenting a thin film,
through which the gas under treatment has to pass.
The gas enters at X at one end of the cylinder, and passes out at Y at the other.
end, having to pass through the perforated discs D on its way. By these means
the gas is caused to come into contact with the, so to speak, running stream of
liquor, which takes up and retains the cyanogen or other gases, according to the
nature of the liquor used."
"
The liquor flows into the cylinder by a suitable syphon pipe, an overflow syphon
to draw from the bottom being also provided at the other end of the cylinder A.
Means are provided, such as a fringe of brush work, to check too great a flow of
gas between the inside of the cylinder A and the edges of the discs D.
The liquor is kept in a constant state of agitation by the moving pockets, so that
any solid matter in the liquid can be kept in a state of suspension; and the liquor
may be supplied constantly or intermittently, as required, flowing either in the
same direction as the gas, or in the opposite direction.
The velocity of the gas flowing through the apparatus will be regulated by the
number of perforations in the discs, and the diameter of the discs and cylinder, and
the inlet and outlet for the gas will be arranged according to a given pressure
of gas.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. In an apparatus for removing gaseous impurities from illuminating and other
gas, and for use in other chemical processes, the use of perforated rotating discs in
combination with pockets adapted to deliver a suitable liquid over the faces of the
discs, as and for the purposes herein set forth.
2. The apparatus as herein shown and described for removing gaseous impurities
from illuminating and other gas, and for use in other chemical processes.
Dated this 1st day of July 1896.
NEWTON & SON,
Agents for the Applicant.