Improvements in Apparatus for Washing or Scrubbing Gas.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Washing or Scrubbing Gas.
We, SAMUEL CHANDLER, Junior, and Josian CHANDLER, both of Central Works,
Kennington Oval, in the County of London, Engineers, do hereby declare the
nature of this invention to be as follows:
Our invention relates to gas washers and scrubbers of the kind described in
the Specification of former Letters l'atent granted to us No. 2085 of 1881 wherein
a series of plates, sheets or boards or of clusters of the same is arranged
upon a rotating shaft or axle and partially immersed in the washing liquid in
such a manner that as the plates are rotated all parts thereof will be successively
immersed in the washing liquid and so maintained in a wet condition.
The object of our invention is to provide improved means for maintaining the
spaces or channels between the plates, sheets or boards and for causing the gases
which pass between the same to travel much further before leaving them than
with the arrangement described in the specification before referred to whereby
the gas is more effectually purified than heretofore.
According to our invention the plates, boards or the like are separated by
distance pieces of a breadth corresponding with the space which is to be pre-
served between adjacent plates, the said distance pieces being either straight
or curved or otherwise suitably shaped and being preferably arranged in a series
of concentric circles around the axis of the washer, spaces being left between
the distance pieces of each circle whilst the distance pieces of one circle are
arranged opposite to the spaces between the distance pieces of adjacent circles
so that the gas in passing from the centre of the drum to the exterior will have
to flow in a zig-zag or circuitous passage. It will thus be understood that the
gas in passing through the apparatus is subjected to a large amount of wetted
surface and is more thoroughly broken up than heretofore.
A further advantage of our invention is that the distance pieces, by holding
the liquid, tend to raise the liquid as the apparatus rotates and allow it to drop
again through and in contact with the gases flowing through the apparatus.
Dated the 8th day of February 1899.
Improvements in Apparatus for Washing or Scrubbing Gas.
We, SAMUEL CHANDLER, Junior, and JOSIAH CHANDLER, both of Central Works,
Kennington Oval, in the County of London, Engineers, do hereby declare the
Price 8T

page_text: nature of this invention and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement:-
Our invention relates to gas washers and scrubbers of the kind described in
the Specification of former Letters Patent granted to us No. 2085 of 1881 wherein
a series of plates, sheets or boards or of clusters of the same is arranged
upon a rotating shaft or axle and partially immersed in the washing liquid in
such a manner that as the plates are rotated all parts thereof will be successively
immersed in the washing liquid and so maintained in a wet condition.
The object of our invention is to provide improved means for maintaining
the spaces or channels between the plates, sheets or boards and causing the gases
which pass between the same to travel much further before leaving them than
heretofore whereby the gas is more effectually purified and for providing carriers
of any shape or number to distribute liquor over the surfaces employed.
According to our invention the plates, boards or the like are separated by
distance pieces of a breadth corresponding with the space which is to be pre-
served between adjacent plates, the said distance pieces being either straight
or curved or otherwise suitably shaped and being preferably arranged in a series
of concentric circles around the axis of the washer, spaces being left between
the distance pieces of cach circle whilst the distance pieces of one circle are
arranged opposite to the spaces between the distance pieces of adjacent circles
so that the gas in passing from the centre of the drum to the exterior will have
to flow in a zig-zag or circuitous passage. It will thus be understood that the
gas in passing through the apparatus is subjected to a large amount of wetted
surface and is more thoroughly broken up than heretofore. The said distance
pieces are formed with hollows or recesses which raise the liquids as the apparatus
rotates and allow it to drop again through and in contact with the gases flowing
through the apparatus.
Our invention will be readily understood by reference to the accompanying
drawing in which :-
Figure 1 is a transverse section of apparatus constructed according to our in-
vention; and
Figure 2 is a longitudinal section of the same.
Figures 3 and 4 are respectively an edge view and a section of one of the
clusters of plates detached."
Figures 5 and 6 are respectively an elevation and sectional view drawn to a
larger scale than the other figures and illustrating a modification of our invention.
a a are the plates, sheets or boards and b, b are the distance pieces arranged
between the same, a series of the said plates a, a with the distance picces between
them being secured between the side plates c, d secured to a boss e mounted
upon a shaft carried in suitable bearings in the ends of a casing which en-
closes the plates. This casing 9 is divided by partitions h, h into bays, in each
of which a series of plates is adapted to rotate and which at the bottom is adapted
to be provided with the washing liquid which, as the plates are rotated keeps
them constantly wet.
It will be noticed that the boss e has two flanges i, j to which the side
plates c, d are respectively connected and that the flange jis provided with a
series of openings k, k and has its face running in close proximity to the margin
of an opening formed in the adjacent partition h whilst the side plate e extends
right down to the flange ; this arrangement is provided in order that the gas
to be purified as it flows from one bay to the next through the opening 7, shall
pass to the interior of the cluster of plates, thence between the same and thence
to the next bay as indicated by the arrows in Figure 2.
The plates a, a of each series of plates may be formed out of a single sheet
of material or in a series of sections. As shewn in the drawing the latter con-
struction is adopted, each section being of segmental shape as shewn in Figures 3
and 4, and at its inner end resting on a bolt m extending through the side

page_text: plates c and d and also through the flange j as shewn in Figures 1 and 2, whilst
the said segment is confined in position by another bolt n extending through the
side plates c, d.
The distance pieces b, bas herein before stated, are arranged in a series of
concentric circles as shewn in Figure 1 and so that the halves of each distance
piece are carried by adjacent segments, this arrangement being provided in
order that the apparatus can be readily erected and transported and that in case
of necessity any cluster of segments can be removed for cleaning or repairs
without disturbing any of the other segments.
In Figure each distance piece b is represented as being provided at one end
with a notch or recess o; these notches or recesses serve, as the apparatus is
rotated, for lifting the washing liquid and dropping it on to the adjacent distance
pieces so as to ensure a most intimate contact of the gas to be purified with the
liquid. Or instead of forming these notches or recesses cups or lifters p, p can
be arranged between the plates as shown in Figures and 6.
With the construction herein before described it will be understood that the
gas which passes from the centre of each group of plates and between the said
plates to the periphery of the group will be caused to pass in a zig-zag direction
in the manner indicated by the arrows in Figure 1.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
wo claim is: -
1. In apparatus for washing or scrubbing gas wherein a series of circular
plates, sheets or boards are carried upon an axle or shaft separating the said
plates, sheets or boards by a series of distance pieces arranged in circles or rows
with spaces between them in such a manner that the distance pieces of one row
or circle are opposite to the spaces between the distance pieces of the adjacent
row or circle so that the gas in passing from the centre of the apparatus to the
periphery will be caused to flow in a zig-zag or circuitous course, substantially
as described.
2. Apparatus for washing or scrubbing gas of the kind referred to in the
preceding claiming clause wherein the distance pieces are attached in halves to
segmental sections forming the plates, each distance piece being provided with
a recess or cup for raising the washing liquid and again dropping it as the drum
rotates, substantially as, and for the purpose, described.
3. The improved apparatus for washing or scrubbing gas herein before described
and illustrated in the accompanying drawings.
DL 0
11900
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.