Improvements in Water Purifying Apparatus.
Year: 1889

page_text: Date of Application, 8th June, 1889
Complete Specification Left, 16th Oct., 1889-Accepted, 11th Jan., 1890
PROVISIONAL SPECIFICATION.
Improvements in Water Purifying Apparatus.
I, HENRY CARROD of 81 Chelsham Road South Croydon in the County of Surrey
Draughtsman, do hereby declare the nature of this Invention to be as follows:-
My Invention has for its object to provide a simple and efficient apparatus for use
in the purification of water.
The apparatus constructed according to my Invention consists of a lower vessel
being that in which the purification of the water is effected. This vessel has attached
to the sides receptacles for deposit. These receptacles extend upwards to near the
underside of a horizontal deflector or baffle plate which extends across the vessel to
such an extent that at each side it leaves a space above the aforesaid receptacles and
between itself and the sides of the vessel. The reagent tank is above this vessel and
between the said reagent tank and the vessel are tanks one for receiving the reagent
from the tank above and the other for receiving the water to be purified the water
and reagent passing together out of these tanks and down a stand pipe which opens
at the lower part into the purifying vessel below the receptacle and baffle plate
aforesaid, the opening being preferably presented downwards. The water and reagent
pass together upwards in the said vessel and then between the tops of the receptacle
and the underside of the baffle plate and then between the edges of the said plate
and the sides of the vessel and upwards (through any suitable filtering medium if
desired) to the outlet for the purified water from the vessel. The level of the liquids
in the tanks can be maintained or controlled by ball valves operated by floats or by
equivalent devices.
To clean the filtering medium, baffle plate and receptacles I may attach a hose
pipe to the water supply and open cocks communicating with the receptacles so, that
the apparatus is cleaned with unpurified water and all such water and any deposit is
run off by the cocks and does not mix with the softened water in the lower part of
the clarification vessel.
Dated this 8th day of Inne 1889
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Water Purifying Apparatus.
I HENRY CARROD of 81 Chelsham Road South Croydon in the County of Surrey
Draughtsman 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 :-
my
My Invention has for its object to provide a simple and efficient apparatus for use
in the purification of water. I will describe my Invention with reference to the
accompanying drawing which shews in Figures 1 and 2 elevations (partly in section)
at right angles to each other of an apparatus constructed according to Invention.
The apparatus consists of a lower vessel A this being the vessel in which the
purification of the water is effected. This vessel has attached to the sides receptacles.
for deposit which may most conveniently be made by inclined or curved plates as
shewn at B. These extend upwards to near the underside of a deflector or baffle
plate C (which is preferably a horizontal plate but may be curved) which extends
across the vessel A to such an extent that at each side it leaves spaces above the
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page_text: aforesaid receptacles B and between itself and the sides of the vessel A. The
reagent tank D is above this vessel A and between the said reagent tank D and
the vessel A are tanks E and F the one tank being for receiving the reagent from the.
tank D above and the other tank F being for receiving the water to be purified, the
water and reagent passing together out of these tanks E and F and down a stand
pipe G (which may be situated either inside or outside the apparatus) which opens at
the lower part into the purifying vessel A below the receptacles and baffle plates B
aforesaid the opening of the said stand pipe being preferably presented downwards.
The water and reagent pass together upwards in the said vessel A and then between
the tops of the receptacles B and the underside of the baffle plate C and then between
the edges of the said plate C and the sides of the vessel A and upwards (through any
suitable filtering medium if desired) to the outlet H for the purified water from the
vessel. If filtering medium be used it may be situated between perforated or
reticulated plates or trays as shewn at I and J. The level of the liquids in the
tanks E and F can be maintained or controlled by ball valves operated by floats or by
equivalent devices.
To clean or wash out the filtering medium baffle plate and receptacles I may attach
a hose pipe to the water supply at L' and after shutting the other cocks open the
cocks on the outlets K communicating with the receptacles formed by the plates B
so that the apparatus is cleaned with unpurified water and all such water and any
deposit is run off by the outlets K and does not mix with the softened water in the
lower part of the clarification vessel A.
I do not limit myself to any precise arrangement of pipes or valves for supplying
liquid to and drawing it off from the vessels or tanks but the arrangement
which I have shewn in the drawing I consider most convenient. L is the pipe by
which unpurified water is supplied it having branches leading to the reagent tank D
and to the tank F in which the unpurified water is received. I have shewn the
reagent tank F as being divided into two compartments so that they can be used
alternately and the process thus be continuous. ' is the branch water pipe for
supplying the tank F and are the branch water pipes for the supply of water
to the compartments of the tank D. The pipes are controlled by stop cocks 1* 1*
and the pipe is controlled by a ball cock. The reagent solution or mixture
passes off from the upper part of the compartments of the vessel D by the floating
outlet pipes M and passes by the pipes m to the vessel E the outlet from the said
pipes m into the said vessel E being controlled by the ball cock m². The water
to be purified passes from the tank by the nozzle f and the reagent solution or
mixture passes from the tank E by the nozzle e these nozzles being of a size to
give the requisite proportion of the reagent and water and discharging into the
vessel X the reagent and water thence passing together by the pipe N into the
open top of the pipe or passage p leading into the stand pipe G and thence up
through the vessel A and to the outlet H therefrom as herein before described. The
tanks E. F and vessel X are shewn as being made by dividing one main tank by
partitions.
Having now particularly described and ascertained the nature of this Inven-
tion and, in what manner the same is to be performed I declare that what I
claim is :-
First. In apparatus for purifying water a vessel A having therein receptacles like
or equivalent to those formed by the plates B with a plate or surface C above them
there being an inlet below and an outlet above and all being arranged substantially as
and for the purpose herein before described and whether with or without the receptacle
for filtering material in the said vessel.
Second. In apparatus for purifying water the combination of a vessel A with a
reagent tank or tanks (as at D) above and receiving tanks E. F for the water to be
purified and for the reagent with the vessel X between supplied by nozzles ef and

page_text: having one outlet the whole being provided with means for conducting the water and
reagent thereto therethrough and therefrom substantially as hereinbefore described.
Third. The arrangement and combination of parts constituting a water purifying
apparatus substantially as herein before described and illustrated in the accompanying
drawings.