Year: 1886

page_text: Date of Application, 15th Dec., 1886.
Complete Left, 15th Sept., 1887
Complete Accepted, 18th Oct., 1887
Purpose.
I, FRANCIS DIXON BROWN of the firm of I. W. Gray and Son, 115 Leadenhall
Street, City of London, Engineers do hereby declare the nature of this invention,
which has been communicated to me from abroad by Andrew Howatson of 46
Boulevard Anspach, Brussels, Belgium, Civil Engineer, to be as follows:-
The object of this invention, is, to treat sewage in a novel and efficient manner in
apparatus specially designed for the purpose.
The two
The sewage is collected in a tank, from which it runs into a vessel to regulate the
flow into a trough or gutter, also supplied with a quantity of lime water, or its equi-
valent agent, flowing through a regulating vessel from another tank.
liquors become mixed in the trough along which they flow in a zigzag, or serpentine
manner by means of partitions arranged in alternate order from the side walls.
Another tank supplies a deodorant to the trough by its regulating tank and the
associated liquors continue to travel along the trough and flow into vessels, having
conical shaped bottoms, in which precipitation takes place. The apex of the cone is
provided with a tap and a nozzle, to which air tight vessels can be attached in any
suitable manner. The precipitant, or sludge enters these air tight vessels by gravi-
tation and become solidified, which vessels, when full, can be removed (after closing
the taps) and be carted away for after use as manure, or other purposes.
The liquor from the lime water tank, is drawn from the upper part by means of
floating nozzles, the same may also be the case with the deodorizing liquid tank.
The vessels which receive the deposit, or sludge may be mounted on wheels for
easy removal.

page_text: The several tanks and depositing vessels may be increased both in size and number,
and where a large quantity of sewage has to be treated, they can be arranged in
contiguity, and a kind of permanent-way provided with turntables, which would
enable the sludge receiving vessels to be moved about in any, and every direction
desired, to take their supplies from the conical bottom vessels, which vessels are made
sufficient in number, so that the liquor under treatment, may flow over any number
of them until all the flocculent matter is deposited, or until the liquor has become
sufficiently clear to be run off into a stream, or other channel.
Dated this 15th day of December 1886.
H. GARDNER,
166, Fleet Street, London,
Agent for the said F. D. Brown.

page_text: COMPLETE SPECIFICATION.
An Improved Method of Treating Sewage and Apparatus for the
Purpose.
I FRANCIS DIXON BROWN of the firm I. W. Gray and Son, 115 Leadenhall
Street, city of London, Engineers, do hereby declare the nature of this invention,
which has been communicated to me from abroad by Andrew Howatson of 46
Boulevard Anspach, Brussels, Belgium, Civil Engineer 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 to permit of any given quantity of sewage being
purified in a continuous and automatic manner; and for this purpose I employ an
arrangement of tanks and reservoirs as is shown in the annexed drawings.
I do not bind myself to employ any particular material in the carrying out of this
invention; in the drawing the re-agent tanks are in iron, and also the tank to contain
the sewage, but these can be made in masonry, also any other material, if they are
kept at a proper level to allow the treated sewage to flow into the precipitating
tanks.
Figure 1 is the plan of my arrangement. Figures 2 and 3 elevations.
The sewage to be treated is stored in a tank or reservoir A the Lime water is
prepared in tank B having a division in the centre, so that while one compartment is
at work the other is being prepared. These compartments are fitted with india
rubber tubes and floats to run off the surface or clear portion of the lime water.
Tank C contains the deodorising material.
In order that the purification may take place not only effectively but cheaply and
regularly I employ a well known arrangement of tank and nozzles as shown in the
Drawings of my previous Patent No. 6351 of 1885.
The quantity of sewage to be purified is run from the nozzle a of the regulating
tank D, the quantity of lime water required is run from the nozzle 6 of the regulating
tank E, and, the deodorising material from the nozzle c of the regulating tank F,
these three flow into a gutter G fitted with check plates or mixers so that a complete
mixing takes place of the different materials as they flow along the gutter. The
check plates are placed at intervals and at opposite sides of the gutter, the sewage
then leaves the gutter G and flows into the precipitating reservoir H.
The reservoir H is made large enough that it will contain at least 2 to 3 hours
supply of sewage, in other words from the time the sewage enters the reservoir until
it leaves it 2 to 3 hours have elapsed, during this time the solid matter falls to the
bottom as it would do in any ordinary reservoir, the bottom of the reservoir H or a
number of them in communication has a series of conical bottoms I which are fitted
with cocks d; adjustable collars e and carriages J are arranged under. The cocks
are left open and when the solid matter falls into the cone it finds its way by its
gravity through the cocks d into the carriage J when in time it solidifies and when

page_text: the carriage J is quite full the cock is shut and the carriage
emptied and to be replaced by another one.
drawn away to be
This mode of operation produces a much more solid sludge than can be obtained by
any other system.
The sewage entering the precipitating tanks H at K flows as shown by the arrows
until it leaves the tank at L, during its course it has left all its solid matter in the
reservoir the clear purified liquid flowing out into a stream or river as the case
may be.
Any number of precipitating reservoirs can be arranged side by side the sludge
being easily drawn away on rails by the trucks or air tight carriages J.
The advantage of the conical bottomed precipitating reservoirs is they do not
require to be emptied by hand for the removal of the sludge as the sludge settles in
the cones it finds its way into the air tight trucks and its specific gravity being
greater than that of the water it solidifies and the water passes away from the upper
part of the cone so that the sludge is not only easily removed but it contains a very
small proportion of liquid as compared with the sludge as at present treated.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that I do not bind
myself to the exact details of the arrangement shown but what I claim is :-
1. The multi-conical bottom precipitating reservoir arranged substantially in the
manner shown in the drawings.
2. The general arrangement of apparatus arranged as set forth and shown for the
purposes described.
The 15th dort of Santambar 1887
H. GARDNER,
166, Fleet Street, London,
Agent for the said F. D. Brown.