IMPROVEMENTS IN APPARATUS FOR WASHING OR PROVISIONAL SPECIFICATION
Year: 1882

page_text: LETTERS PATENT to Stephen Holman of Queen Victoria Street in the City
of London and Charles Hunt of Birmingham in the County of Warwick―
for an
Invention of
"IMPROVEMENTS IN APPARATUS FOR WASHING OR
PROVISIONAL SPECIFICATION left by the said Stephen Holman and Charles
Hunt at the Office of the Commissioners of Patents on the 17th August
1882.
STEPHEN HOLMAN of Queen Victoria Street in the City of London and CHARLES
HUNT of Birmingham in the County of Warwick "IMPROVEMENTS IN APPARATUS
FOR WASHING OR PURIFYING ILLUMINATING GAS AND OTHER FLUIDS."
Our Invention relates to apparatus to be used in the washing or purification of
illuminating gas and other fluids for the separation of dense and Volatile products
therefrom and has for its object to provide an apparatus which gives a very large
acting surface in but a small space and in which the dense and volatile products
are readily separated from the gas or other fluid-and a very effective separation
and purification is thereby obtained.
The said apparatus is constructed according to our Invention as follows-An
outer casing is provided preferably of a circular figure in its interior and provided
with an inner revolving barrel or drum having annular or other shaped side or
sides and division pieces between which are wound or wrapped lengths or layers of
wire netting or gauze or other like wire work forming a deep wire periphery to
the drum. The lower part of the casing in which this drum revolves has an
opening at bottom which communicates with a Settling Chamber for the Tarry or
other dense matters the said Settling Chamber forming the base of the Apparatus
The inner side of the casing and the sides of the drum revolving therein have
turned surfaces which by fitting closely against each other prevent escape of gas
from the inner chamber. At opposite sides of the outer casing are an inlet passage
and an outlet passage for the washing liquid the outlet being preferably at a lower
level than the inlet to give a ready passage for the liquid through the apparatus.
Above these passages for the liquid are arranged the inlet and outlet passages for
D

page_text: the gas under treatment. The passages for the liquid are at an elevation requisite
to maintain any determined level of the liquid in which the said drum revolves
and the inlet and outlet passages for the gas are arranged above the water level
and at such a distance below the upper part of the drum that the gas is compelled
to pass through a considerable portion of the wire work on the drum-The gas
and liquid passages are arranged transversely to the axis of the inner revolving
drum so that the wire work carried by the drum as it revolves in the liquid takes
up the said liquid and the gas then passes through the recticulations or interstices
of the said wire work in a line with the path of revolution of the said drum but
preferably in the reverse direction to its motion-The gas is by its passage through
these interstices or recticulations very finely divided and very thoroughly subinitted
to the washing action of the liquid and the tarry or other dense matters fall
through the opening in the lower part of the casing and into a Chamber beneath
so that they are not stirred up again by the drum-It will be evident that if
desired a similar arrangement of wire work may be applied to washers through
which the gas passes longitudinally or vertically and a number of the apparatus
may be arranged together the gas passing if necessary from one to the other until
thoroughly cleansed-The chamber beneath is provided with openings for dis-
charging and cleansing purposes.
The apparatus it will be evident may be employed for washing or separating
matter from fluids other than illuminating gas.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Stephen Holman and Charles Hunt in the Great Seal Patent
Office on the 16th February 1883.
STEPHEN HOLMAN of Queen Victoria Street in the City of London and CHARLES
HUNT of Birmingham in the County of Warwick. "IMPROVEMENTS IN APPARATUS
FOR WASHING OR PURIFYING ILLUMINATING GAS AND OTHER FLUIDS "1
Our Invention relates to apparatus to be used in the washing or purification of
illuminating gas and other fluids for the separation of dense and volatile products
therefrom and has for its object to provide an apparatus which gives a very large
acting surface in but a small space and in which the dense and volatile products
are readily separated from the gas or other fluid and a very effective separation
and purification is thereby obtained.
And in order that our said Invention may be fully understood we shall now
proceed particularly to describe the same and for that purpose shall refer to
the figures on the annexed sheet of drawings the same letters of reference
indicating corresponding parts in both the figures.
Figure 1 is a vertical Section and Figure 2 is a side view partly in vertical
section of an apparatus constructed according to our Invention An outer casing A
is provided preferably of a circular figure in its interior and provided with an inner
revolving barrel or drum B fixed upon a shaft C and having annular or other
shaped sides b and also, in addition, if necessary, division pieces bs between which
sides or sides and division pieces are wound or wrapped lengths or layers of wire
netting or gauze or other like wire work as shewn at d forming a deep wire
periphery to the drum. The wire work is only shewn in the Drawing in that
recess which is between the division pieces b' but it will be understood that it is
similarly placed in the recesses between the sides b and the division pieces b².
The lower part of the casing A in which this drum revolves has an opening a
at bottom which communicates with a settling chamber E for the tarry
or other dense matters the said settling chamber forming the base of the
apparatus. The inner side of the casing A and the sides of the drum B
revolving therein have turned surfaces (as at 63 a³) which by fitting closely
against each other prevent passage of gas from the inner chamber. At opposite
sides of the casing A are an inlet passage G and an outlet passage H for the
washing liquid the outlet being preferably at a lower level than the inlet. Above
these passages for the liquid are arranged the inlet and outlet passages (marked
respectively I and J) for the gas under treatment. The passages for the liquid are
at an elevation requisite to maintain any determined level of the liquid in which
the drum revolves and the inlet and outlet passages for the gas are arranged above
the water level and at such a distance below the upper part of the drum that the
gas is compelled to pass through the passage formed between the upper parts of
the barrel B and casing A and consequently through that portion of the wet wire-
work d which is above the liquid. The gas and liquid passages are arranged
transversely to the axis of the inner revolving drum so that the wire work carried
by the drum as it revolves in the liquid takes up the said liquid and the gas then
passes through the reticulations or interstices of the said wire work in a line with
the path of revolution of the said drum but preferably in the reverse direction to
its motion. The gas is, by its passage through theso interstices or reticulations,
very finely divided and very thoroughly submitted to the washing action of the
liquid and the tarry or other dense matters fall through the opening a in the
lower part of the casing and into the chamber E beneath so that they are not

page_text: stirred up again by the drum. It will be evident that if desired a similar
arrangement of meshed wire work in wrappings or layers may be applied to
washers through which the gas passes longitudinally or vertically and that a
number of the apparatus may be arranged together the gas passing if necessary
from one to the other until thoroughly cleansed. The Chamber E is provided with
openings e e for discharging and cleansing purposes.
The apparatus it will be evident may be employed for washing or separating
matter from fluids other than illuminating gas.
Having now described and particularly ascertained the nature of our said
Invention and the manner in which the same is or may be used or carried into
effect we would observe in conclusion that what we consider to be novel and original
and therefore claim as the Invention secured to us by the hereinbefore in part
recited Letters Patent is:-
First The general arrangement and combination of parts constituting the
apparatus for washing or purifying illuminating gas or for other like purpose
substantially as hereinbefore described and illustrated in the accompanying
Drawing.
Secondly. In apparatus for washing or purifying illuminating gas or for other
like purpose the employment of layers or wrappings of wire netting or gauze
substantially as and for the purpose hereinbefore described.
In witness whereof I the said Stephen Holman for myself and on behalf of
the said Charles Hunt have to this our Specification set my hand and seal
this thirteenth day of February One thousand eight hundred and eighty-
three.
STEPHEN HOLMAN (L.S.)