Improvements in Apparatus for Purifying Water.
Year: 1892

page_text: Date of Application, 3rd Nov., 1892
Complete Specification Left, 3rd Aug., 1893-Accepted, 9th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Purifying Water.
We, RICHARD MOUNTFORD DEELEY, of 10 Charnwood Street, Derby,
Engineer, and LEONARD ARCH BUTT, of 11 Charnwood Street, Derby, Analytical
Chemist, do hereby declare the nature of this invention to be as follows:-
In the process described in our Specification No. 1791 of 1889, the water to be
purified is introduced into a tank, mixed with chemicals by means of a well and
trajector, and afterwards mixed with the precipitate of former operations which is
stirred up from the bottom of the tank by means of a blower and perforated pipes.
Instead of introducing the chemicals into the water by means of the well and
trajector we now introduce them through the blower and perforated pipes; and we
also make use of the blower and perforated pipes, or of the perforated pipes alone,
for the purpose of removing the excess of mud from the bottom of the tank. By
operating in this manner, we can remove the excess of mud in smaller quantities, at
short intervals, without stopping the purifying process, instead of allowing a large
quantity to accumulate and then sweeping it out through mud doors as previously
described.
In one form of apparatus, the suction orifice of the blower is connected, through
a pipe, with a plug valve, the plug of which has only three ports, whilst the barrel
has four, so that one port of the barrel is always closed whilst the other three are
open. One port of the barrel leads to a pipe passing into the water of the tank,
another, at right angles to the first, opens into the air, a third and smaller port,
opposite to the second, opens into a funnel and strainer, and the fourth, opposite to
the first, opens into a pipe communicating with another plug valve fixed to the
delivery end of the blower and giving off a branch to the suction end of the blower.
When the plug of the first valve is in one position, the action of the blower causes
water from the tank to be aspirated through it and forced out through the perfora-
tions in the pipes at the bottom of the tank, and into this current the chemicals,
previously dissolved in or mixed with water, are directed by means of the funnel
and strainer, and thus they are distributed throughout the tank. Then, by turning
the plug through 90°, air instead of water is aspirated by the blower and forced
out through the perforated pipes, in order to thoroughly mix the chemicals with
the water to be purified and also to stir up some of the mud from the bottom of the
tank as described in our previous Specification.
The object of the second plug valve is to enable the same blower to raise the
mud from the bottom of the tank and discharge it through a pipe over the side.
The barrel of this valve has three ports, one communicating with the pipe which
leads to the fourth port of the other plug valve, one at right angles to this leading
to the perforated pipes, and a third, opposite to the first, communicating with the
discharge pipe for mud. This valve is fixed to the delivery end of the blower in
such a manner that the large end of the plug revolves in front of the orifice of the
blower. The large end of the plug has a port communicating with a port in the
side of the plug, and when this side port is opposite the second port of the barrel
the water or air discharged from the blower passes out through the perforated
pipes; but when it is opposite the third port of the barrel the perforated pipes are
placed in communication, through a side channel in the plug, with the suction end.
of the blower, and then, by turning the plug of the first valve so as to prevent water
or air being drawn through it, mud and water are sucked up through the perforated
pipes instead and discharged over the side of the tank through the mud pipe into
any receptacle intended to receive it.
If the drain or receptacle into which the mud is to be discharged be at a lower

page_text: level than the tanks, the blower need not be used to remove the mud. The main
horizontal delivery pipe of the blower may, instead, be extended through the side
of the tank, and terminated by a cock, by opening which the head of water in the
tank will force the mud into the perforated pipes and out through the cock into the
drain.
Dated this 3rd day of November 1892.
CARPMAEL & Co.,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Purifying Water.
We, RICHARD MOUNTFORD DEELEY, of 10 Charnwood Street, Derby,
Engineer, and LEONARD ARCHBUTT, of 11 Charnwood Street, Derby, Analytical
Chemist, 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 improvements described in this Specification are designed to facilitate more
especially the treatment of waste water and sewage, though they are also applicable
to the softening of hard water.
In the process described in our Specification No. 1791 of 1889, the water to be
purified is introduced into a tank, mixed with chemicals by means of a well and
trajector, and afterwards mixed with the precipitate of former operations which is
stirred up from the bottom of the tank by means of a blower and perforated pipes.
Instead of introducing the chemicals into the water by means of the well and
trajector we now introduce them through the blower and perforated pipes; and we
also make use of the blower and perforated pipes, or of the perforated pipes alone,
for the purpose of removing the excess of mud from the bottom of the tank. By
these means the apparatus is simplified, a more prompt and thorough mixing of the
chemicals is ensured and steam is economised. Also by operating in this manner,
we can remove the excess of mud in smaller quantities, at short intervals, without
stopping the purifying process, instead of allowing a large quantity to accumulate
and then sweeping it out through mud doors as previously described.
In order that our invention may be fully understood and readily carried into
effect we will proceed to dosanibe the 1………..
1
Figure 1 is a plan of one form of apparatus in accordance with our invention.
Figures 2 and 3 are sections taken respectively on the lines A B and C D in
Figure 1.
Figure 4 shows with a slight modification the blower and cocks in connection
therewith to a larger scale.
Another form of the apparatus is shown by the Figures 5 to 10.
In Figures 1, 2 and 3 a is a tank, b is a set of perforated pipes lying at the
bottom of the tank. e is another set of perforated pipes at a distance above the
bottom. and are upright pipes communicating with the perforated pipes b
and c they unite in a three way cock d (see also Figure 4) and by means of thiṣ
cock either set of perforated pipes can be placed in communication with the pipe x
leading to the blower e. f is the steam inlet to the blower. g is a suction pipe in
connection with the blower, it dips down into the water in the tank. In Figure 4
a three way cock is shown by which the suction and also an air inlet i may
be opened and closed at pleasure but in the other figures a simple cap į is
provided for closing the air inlet when desired. k¹k are two tubs for dissolving
or mixing chemicals, one of them is provided with a perforated steam pipe 1 by
which steam may be blown in to facilitate solution,

page_text: .
Each tub is also provided with a pipe m connected with the suction pipe g of the
blower. n is a jointed draw off pipe the moveable part of which is shown in a
Becond position by dotted lines. At the free end of the outlet pipe is a float '
which automatically sustains the pipe with its mouth a few inches beneath the
surface of the water in the tank. is the water inlet, it is in connection with
a sluice valve outside the tank.
The inethod of working is as follows:-The tank is filled whilst the draw off
pipe n is in the elevated position and the chemicals are prepared; these chemicals
may be any suitable for the purification of water as for example lime and soda. Then
the blower e is brought into use, its air inlet is closed whilst its suction pipe is
open, as are also the cocks on one or both of the pipes m. The three way cock d is
open to the pipes c. It results that a large quantity of water is raised from the
tank, mixed with the chemicals siphoned out of the tubs k¹k and driven through
the pipes c.
When the chemicals have thus been added to the water in the tank
the admixture is completed by blowing in air which is effected either by turning the
cock. in Figure 4 or by removing the cap j in Figures 1, 2 and 3. After
a short time the cock d is turned to direct the air into the pipes which lie amongst
the mud which is at the bottom of the tank. In this way the mud from previous
operations is thoroughly stirred up; this as explained in our former Specifications
is very influential in the purifying and clarifying of the water.
The blowing
is then stopped and the water is left at rest to deposit the precipitated matter.
a short time it will be clear enough to draw off which is done by lowering the head
of the draw off pipe so that the float rests on the water and descends with it.
This pipe is seen in its lowest position in Figure 1.
When the tank is emptied to this level the draw off pipe is lifted by the aid of a
chain attached to it and the tank is ready to be refilled.
In
From time to time some of the mud will require to be removed but the
arrangements for doing so are not shewn in these figures. The mud may be
removed through perforated pipes as hereinafter described or otherwise.
One set
only of perforated pipes will in some cases suffice but we prefer to provide two
sets one in the mud and the other above it.
In another form of apparatus in accordance with our invention we arrange the
blower and the valves in connection therewith in a somewhat different manner as is
shewn by the Figures 5 to 10.
Figure 5 is a vertical section and Figure 6 is a horizontal section. Figures 7
and 8 are vertical and horizontal sections of one of the cocks or valves which we
employ and Figures 9 and 10 are similar views of another of the cocks or valves.
In this form of the apparatus the suction orifice of the blower e is connected through
a pipe, with a plug valve p (Figures 7 and 8) the plug of which has only three
ports, whilst the barrel has four, so that one port of the barrel is always closed
whilst the other three are open. One port of the barrel leads to a pipe g passing
into the water of the tank, another i at right angles to the first, opens into the air,
a third and smaller port, opposite to the second opens into a funnel and strainer
(which in some cases may replace the tubs k¹³) and the fourth, opposite to the
first, opens into a pipe communicating with another plug valves (see Figures 9
and 10) this is fixed to the delivery end of the blower e. The piper also gives off
a branch to the suction end of the blower. When the plug of the first valve
in one position, the action of the blower causes water from the tank to be aspirated
through it and forced into the pipe and then out through the perforations in the
pipes c at the bottom of the tank, and into this current the chemicals, previously
dissolved in or mixed with water, are directed by means of the funnel and strainer,
and thus they are distributed throughout the tank. Then, by turning the plug
through 90°, air instead of water is aspirated by the blower and forced out through the
perforated pipes, in order to thoroughly mix the chemicals with the water to be
purified and also to stir up some of the mud from the bottom of the tank as described
in our previous Specification.
is
The object of the second plug valves Figures 9 and 10 is to enable the same

page_text: blower to raise the mud from the bottom of the tank and discharge it through
a pipet over the side. The barrel of this valve has three ports, one communicating
with the piper which leads to the fourth port of the other plug valve, one at right
angles to this leading by the pipe to the perforated pipes and c and a third,
opposite to the first, communicating with the discharge pipe for mud. This
valve is fixed to the delivery end of the blower e in such a manner that the large
end of the plug revolves in front of the crifice of the blower. The large end of the
plug has a port s' communicating with a ports in the side of the plug, and when
this side port is opposite the second port of the barrel the water or air discharged
from the blower passes out through the perforated pipes; but when it is opposite
the third port of the barrel the perforated pipes are placed in communication,
through a side channel in the plug, with the suction end of the blower, and then,
by turning the plug of the first valve so as to prevent water or air being drawn
through it, mud and water are sucked up through the perforated pipes instead and
discharged over the side of the tank through the mud pipe t into any receptacle
intended to receive it.
If the drain or receptacle into which the mud is to be discharged be at a lower
level than the tanks, the blower need not be used to remove the mud. The main
horizontal delivery pipe of the blower may, instead, be extended through the side
of the tank, and terminated by a cock, by opening which the head of water in
the tank will force the mud into the perforated pipes and out through the cock into
the drain.
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 we claim is :-
1. Apparatus substantially as described for purifying water and so arranged that
chemicals mixed with water may be driven by a blower through perforated pipes
into the tank in which the water is contained and that afterwards mud may be
stirred up with the water by air forced by the blower through perforated pipes laid
at the bottom of the tank.
2. Apparatus substantially as described for purifying water and so arranged that
when chemicals have been mixed with the water, mud from the bottom of the tank
in which the water is contained may be stirred up by air forced amongst it
by a blower through perforated pipes and that froin time to time the surplus
mud may be removed from the tank by the suction of the blower applied to
perforated pipes lying amongst the mud.
Dated this 29th day of July 1893.
R. M: DEELEY.
LEONARD ARCHBUTT.