Improvements in and relating to Gas Washers.
Year: 1889

page_text: Date of Application, 8th Oct., 1889
Complete Specification Left. 16th July, 1890-Accepted, 23rd Aug., 1890
PROVISIONAL SPECIFICATION.
Improvements in and relating to Gas Washers.
I, GEORGE EDWARD SAVILLE of Millwood, Todmorden in the County of York,
Gas Engineer, do hereby declare the nature of this invention to be as follows:--
The object of this invention is, in addition to the ordinary process of purifying
gas by washing, to regulate the flow of gas to the exhauster, whereby excessive
external pressure and the consequent ingress of atmospheric air or furnace gas into
the gas washing apparatus are avoided.
To carry out my invention I employ a washing tank by preference of rectangular
form, with an inlet for a supply of ammoniacal liquor, and an outlet for spent liquor
which has become saturated with ammonia and other soluble gas products.
The liquor in this cistern is caused to flow to the required level at which it is
maintained by a constantly inflowing supply. A flange is formed round the upper
edge of the walls of the cistern upon which rests a flange formed by lateral extensions
of the top plate of the inverted trough or bell, and a gas-tight joint is formed between
the two flanges.
The gas passing from the cooler enters one end of the inverted trough or bell of
the washer, and passing under the lower edge or through perforated plates rivetted to
the lower edge of the inverted trough, which dip a short distance into the liquor,
thereby becomes washed and partially purified by such passage through the liquor.
After this washing process the gas passes to the exhauster by an outlet formed at
one end of the tank communicating with the space between the walls of the tank
and the sides of the inverted trough.
At a short distance from tho washer and freely communicating with it by means
of a pipe opening from the bottom, is placed a cylindrical reservoir forming the
regulator, which is open at the top and has an outlet pipe passing through the
bottom.
Upon this pipe is screwed a funnel opening upwards, the upper edges of which are
level with the normal level of the liquor, which flows into this cylindrical reservoir
by the pipe before mentioned to the level of the liquor contained in the washing
tank. In consequence of the overflow of liquor into the funnel, when the liquor in
the tank and in the regulator rises above the regulated level, the dip of the sides of
the inverted trough can never exceed the required depth, which is adjusted by raising
or lowering the funnel in the reservoir of the regulator.
Immediately upon any sudden increase of speed in the exhauster, and excessive
draught caused thereby, the level of the liquor rises in the washer, with the aid of
the liquor then flowing from the regulator, and this rise of liquor forming a deeper
seal or dip of the sides of the inverted trough, retards the flow of gas under the sides,
and thereby regulates the supply passing to the exhaustor.
DL: With day of Ontahan 1000
WILLIAM JAMES BAKER,
2, New Street, Huddersfield, Agent for the Applicant.
COMPLETE SPECIFICATION
Improvements in and relating to Gas Washers.
I, GEORGE EDWARD SAVILLE of Millwood, Todmorden, in the County of York,
Gas Engineer, do hereby declare the 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
:-
The object of this invention is, in addition to the ordinary process of purifying
gas by washing, to regulate the flow of gas to the exhauster, whereby excessive

page_text: external pressure and the consequent ingress of atmospheric air or furnace gases into
the illuminating.gas are avoided.
To carry out my invention I employ a washing tank, by preference of rectangular
form, with an inlet for a supply of ammoniacal liquor, and an outlet for spent liquor
which has become more fully charged with ammonia and other impuritios.
The liquor in this tank is caused to flow to the required level, at which it is
maintained by a constantly inflowing supply.
A flange is formed or fixed round the upper edge of the walls of the tank, upon
which rests a flange formed by lateral and longitudinal extensions of the top plate of
the inverted trough or bell, and a gas-tight joint is formed between the two flanges.
The gas passing from the cooler enters one end of the inverted trough or bell of
the washer, and passing under the lower edge of the vertical walls of the inverted
trough or bell, or through perforated plates fixed along such lower edge, which dip a
short distance into the liquor, thereby becomes washed and partially purified by such
passage through the liquor.
•
After this washing process the gas passes to the exhauster by an outlet formed
at one end of the tank and communicating with the space between the walls of tho
tank and the sides of the inverted trough or bell.
At a short distance from the washer tank and freely communicating with it by
means of a pipe opening from the bottom or side thereof, is placed a cylindrical
reservoir, which forms the outer shell of the regulator, which is open at the top and
has an outlet or waste pipe passing out at the bottom.
Upon the upper extremity of this pipe is screwed a funnel opening upward, the
upper edges of which are levol with the normal working level of the liquor, which flows
into this cylindrical reservoir by the pipe before mentioned, to the same level as that
of the liquor contained in the washing tank.
Immediately upon any sudden increase of speed in the exhauster, and excessive
draught caused thereby, the level of the liquor rises in the space between the walls
of the inverted trough or bell and the walls of the tank, with the aid of the liquor which
then flows from the regulator, and this rise of liquor forming a deeper seal or dip of
the sides of the inverted trough, retards the flow of gas under the sides, and thereby
regulates the supply allowed to pass to the exhauster.
The liquor in the washer tank and in the regulator is prevented from rising higher
than the required working level, by overflowing into the funnel of the regulator, and
passing away down the outlet pipe.
The regulator funnel being screwed upon the upper extremity of the outlet pipe
can be adjusted to the required height to regulate the working level of the liquor.
In order to enable this invention to be fully understood I will proceed to
describe the same with reference to the accompanying drawings in which Figure 1
represents a longitudinal sectional elevation of the washing tank and inverted trough
or bell. Figure 2 represents a plan partly in section of the washing tank, inverted
trough, and regulator, and Figure 3 a transverse sectional elevation of the same at the
plane represented by the dotted line X Y.
Similar letters refer to similar parts in all the figures.
The arrows in the drawings indicate the direction in which the gas passes.
The impuro gas enters the washer by the inlet pipe A and occupies the principal
or upper portion of the inverted trough or bell D. The gas is from thence drawn
forward by the suction of the exhauster, and passes under the side plates of the
inverted trough D, and through the perforated plates E, which being immersed in
liquor causes the gas to pass through such liquor, thereby washing the gas which
rises from the liquor into the space F, between the walls of the tank and the
inverted trough D, and on to the exhauster by the pipe G.
The regulator consists of the external cylinder or shell J, which communicates
with the washing tank by means of the pipe H, and the funnel I which is screwed
upon the outlet pipe K at the point M, whereby the level of the rim of the funnel is
adjustable, and the level to which the liquor can rise in the regulator is governed, and
the same adjustment also regulates the level of liquor in the washing tank.

page_text: 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 gas washing apparatus the combination of the washing tank, and inverted
trough for washing the gas, with the regulator, in which a funnel screwed to an outlet
pipe and adjustable thereon, controls the working level of liquor in the washing
tank, and prevents excessive draught from the exhaust, substantially in the manner
described and as represented in the accompanying drawings.
2. In gas washing apparatus, the devices for regulating the flow and pressure of
gas being operated upon, by increasing or decreasing the dip or seal of the plates of
the inverted trough or bell, by means of a liquor level regulator, constructed and
operating substantially in the manner described, and as represented in the accom-
panying drawings.
3. In a regulator appertaining to a gas washer, an overflow receiving funnel, with
screw adjustment, for the purpose of regulating the working level of liquor in the
regulator and washing tank, as described.
4. The general arrangement and relative positions of the various parts of the
combined gas washer and regulator herein described and represented.
Datad this Stintaruth day of Tuns 1000
WILLIAM JAMES BAKER,
2, New Street, Huddersfield, Agent for the Applicant.
WILLIAM JAMES BAKER,
2, New Street, Huddersfield, Agent for the Applicant.