IMPROVEMENTS IN APPARATUSES FOR WASHING AND CONDENSING GAs
Year: 1860

page_text: LETTERS PATENT to William Mann, of Barnsbury, in the County of
Middlesex, Gas Engineer, for the Invention of "IMPROVEMENTS IN
Ann
Sealed the 19th April 1861, and dated the-25th October 1860.
PROVISIONAL SPECIFICATION left by the said William Mann at the
Office of the Commissioners of Patents, with his Petition, on the
25th October 1860.
I, WILLIAM MANN, of Barnsbury, in the County of Middlesex, Gas Engineer.
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
APPARATUSES FOR WASHING AND CONDENSING GAs," to be as follows:-
My improvements in apparatuses for washing gas consist in the employment
of a syphon tube, the lower part of which enters the vessel in which the
washing is performed, known as a "scrubber," the tube is then bent and is
turned down at the extreme end through a stuffing box in the centre of the
cover of the scrubbing vessel; I introduce a shaft and connect to it so as to
revolve with it a tray or grating, and I charge the tray with birch, pebbles,
coke, or other like suitable material; I place a pulley on the shaft and fit on
the lower part of the syphon tube a rigger, a belt passed round the pulley and
rigger imparts rotary motion from the shaft to the tube. The tap of the
syphon tube is furnished with a funnel into which a continuous supply of water

page_text: Under the
or other washing liquid is fed from a cistern or other source.
grating or tray a supply of pebbles, coke, or other like material usually
employed in scrubbers and through which the gas is made to rise is placed.
The working of the apparatus is as follows:-Rotary motion is imparted
to the main shaft and also from it to the liquid tube from the bottom of
this tube which is made to describe a circle inside the scrubber between
the side and the central shaft, a continuous flow of liquid is distributed
over the material on the tray or grating, the rotary motion of which con-
stantly exposes a fresh surface of the material from which the liquid is
distributed in a shower or in finely divided streams over the pebbles, or coke in
the lower part of the scrubber, the gas rising through this latter material
meeting the liquid becomes washed, and then passes out of the apparatus
through a shaft or pipe provided for the purpose.
My improvement in apparatuses for condensing gas consists in surrounding
the condensing pipes, ordinarily used in gas works with a series of brushes or
rubbers of cotton, or other like material which are made to rise and fall up and
down the pipes between trays or troughs fixed at intervals on the pipes, and
supplied with water which is fed into the uppermost trough, the overflow from
which enters that next below it and so on to the lowest trough. Each time
the rubbers enter the troughs they take a supply of water, and in ascending and
lescending pay it over the pipes.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Mann in the Great Seal Patent Office on the
25th April 1861...
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM'
MANN, of Barnsbury, in the County of Middlesex, Gas Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters'
Patent, bearing date the Twenty-fifth day of October, in the year of our Lord One
thousand eight hundred and sixty, in the twenty-fourth year of Her reign, did,
for Herself, Her heirs and successors, give and grant unto me, the said.
William Mann, Her special licence that I, the said William Männ, my
executors, administrators, and assigns, or such others as I, the said William
Männ; my executors, administrators, and assigns, should at any tinie 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

page_text: vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN APPARATUSES
FOR. WASHING AND CONDENSING GAS," upon the condition (amongst others)
that. I, the said William Mann, my executors or administrators, by an
instrument in writing under my, 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 I, the said William Mann, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, reference being had to the Drawing hereunto annexed, that
is to say:-
My improvements in apparatuses for washing gas consist in the employment
of a syphon tube, the lower part of which enters the vessel in which the
washing is performed, known as a "scrubber," the tube is then bent, and is
turned, at the extreme end, through a stuffing box in the centre of the cover of
the scrubbing vessel; I introduce a shaft and connect to it so as to revolve with
it a tray.or grating, and I charge the tray with birch, pebbles, coke or other
like suitable material; I. place a pulley on the shaft and fit on the lower part
of the syphon tube a rigger, a belt passed round the pulley and rigger imparts
rotary motion from the shaft to the tube. The top of the syphon tube is
furnished with a funnel into which a continuous supply of water or other
washing liquid is fed from a cistern or other source. Under the grating or tray
a supply of pebbles, coke, or other like material usually employed in scrubbers
and through which the gas is made to rise is placed.
t
The accompanying Drawing is a longitudinal section of an apparatus shewing
the improvements just described.
a is the syphon tube terminating at top in a funnel 6 and at bottom, in a
branch c. The tube a passes through the top of the "scrubber" d as shewn, and
is supported by a bracket c. The branch c of the tube a terminates in a jet f
turned by preference upwards; but I do not limit myself to this as in some cases
where two (or more) tubes are employed, one for example may be made to
turn upwards and the other. downwards, or both up, and both down as circum-
stances may require; g. is a shaft passing through a stuffing, box in the top of
the vessel carrying a tray or grating.h, at its lower end connected to the shaft
by arms or branches i, i, and at its upper end a toothed wheel by which it.

page_text: receives rotary motion; k is a pulley on the shaft 9, and 1 is a rigger. on the
syphon tube a round which a strap passes for communicating rotary motion
to the arm or branch c; m is a pipe by which water is conveyed to the
syphon; is the grating or tray of birch upon which the water is deposited by
the branch.co
The working of the apparatus is as follows:-Rotary motion is imparted
to the main shaft g, and also from it to the liquid tube a from the branch c of
this tube, which is made to describe a circle inside the scrubber between the
side and the central shaft, a continuous flow of liquid is distributed over the
material on the tray or grating, the rotary motion of which constantly exposes
a fresh surface of the material from which the liquid is distributed in a shower
or in finely divided streams over the pebbles or coke in the lower part of the
scrubber, the gas rising through this latter material meeting the liquid becomes
washed, and then passes out of the apparatus through a shaft. or pipe provided.
for the purpose.
My improvements in apparatuses for condensing gas consist in surrounding
the condensing pipes ordinarily used in gas works with a series of brushes or
rubbers of cotton or other like material which are made to rise and fall up and
down the pipes between trays or troughs fixed at intervals on the.pipes.and
supplied with water which is fed into the uppermost trough, the overflow: from
which enters that next below it, and so on to the lowest trough. Each time
the rubbers enter the troughs, they take a supply of water and in ascending.
and descending pay it over the pipes.
In cases where the condenser pipes are horizontal instead of vertical the
brushes or rubbers are made to revolve round the pipes, and are supplied with
water from a trough underneath.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I do not limit myself
to the particular arrangements herein-before described, as for example,
in the apparatus for washing gas two revolving tubes may be employed, cach
receiving a continuous supply of water and both receiving motion from the
central shaft, and it is not necessary that the arm of the syphon tube should
receive a rotary motion, as a vibratory one will answer, the only difference
being that the liquid will be laid in semicircles instead of circles, but what I
claim is,
First, the arrangement of apparatuses for washing gas herein-before
described, whereby continuous streams or showers of water or other cleansing
liquid are maintained in the cleansing vessel or scrubber.
And second, the improvements in apparatuses for condensing gas, whereby.
3

page_text: the outer surfaces are moistened substantially in manner herein-before
described.
In witness whereof, I, the said William Mann, have hereunto set my
hand and seal, the Twenty-fifth day of April, One thousand eight
bundred and sixty-one.