Improvements in Apparatus for Purifying Water.
Year: 1890

page_text: Date of Application, 20th Dec., 1890
Complete Specification Left, 19th Sept., 1891-Accepted, 24th Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Purifying Water.
I, FRANCIS CRUMPTON NUNN, of Dock House, Billiter Street, in the City of
London, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to that class of apparatus in which the water is submitted
to the action of iron in the form of borings or the like. In this process it is
desirable that the iron should be kept bright and free from rust; and apparatus in
the form of revolving cylinders has been devised for effecting this object, by keeping
the pieces of iron.in motion so that they rub against each other.
It has also been found necessary in some cases to force air into the apparatus, to
promote the desired chemical action, and for this purpose an arrangement of
air pipes passing through the trunnions of the revolving cylinders, has been
devised.
According to this invention, I dispense with the continual movement of the
iron, and form the apparatus in such a manner that the air pipes can be
arranged in a simple manner and the iron readily removed and cleaned when
necessary. The apparatus consists of a vertical cylindrical case in which there
is an inner case containing the iron and with a perforated bottom. An air pipe is
provided which leads to a coil of perforated pipes at the bottom of this inner
receptacle.
The air flowing out of the perforations ascends regularly in fine streams among
the particles of iron. The water is admitted at the top of the inner receptacle
and passes through the iron and perforated bottom to an outlet in the outer
casing. It may equally well pass in at the bottom and out at the top. A
number of these vessels are employed together and are arranged in such a way
that the inner receptacle may be removed by a crane or a traveller, and the
iron transferred to a cleaner, which may be of any convenient form, but pre-
ferably a revolving barrel by which the pieces of iron are rubbed or rumbled
together.
า
1000
COMPLETE SPECIFICATION.
Improvements in Apparatus for Purifying Water.
I, FRANCIS CRUMPTON NUNN, of Dock House, Billiter Street, in the City of
London, 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 :-
This invention relates to that class of apparatus in which the water is submitted
to the action of iron in the form of borings or the like. In this process it is
desirable that the iron should be kept bright and free from rust; and apparatus
in the form of revolving cylinders has been devised for effecting this object, by
keeping the pieces of iron in motion, so that they rub against each other.
It has also been found necessary in some cases to force air into the apparatur,
to promote the desired chemical action, and for this purpose an arrangement
of air pipes passing through the trunnions of the revolving cylinders has been
devised.
According to this invention I dispense with the continual movement of the iron,
and I substitute an occasional or intermittent cleansing of the iron. I form the

page_text: apparatus in such a manner that the air pipes can be arranged in a simple manner,
and the iron readily removed for cleaning when necessary. The apparatus consists
of a vertical cylindrical case in which there is an inner case containing the iron.
This case has a perforated bottom. An air pipe is provided which leads to a coil
of perforated pipes at the bottom of this inner receptacle.
The air flowing out of the perforations ascends regularly in fine streams among
the particles of iron. The water is admitted at the top of the inner receptacle,
and passes through the iron and perforated bottom to an outlet in the outer casing.
It may equally well pass in at the bottom and out at the top. A number of these
vessels are employed together, and are arranged in such a way that the inner
receptacle may be removed by a crane or a traveller, and the iron transferred to a
cleaner which may be of any convenient form but preferably a revolving barrel by
which the pieces of iron are rubbed or rumbled together.
Figure 2 is an
In the drawing annexed Figure 1 is a vertical section and
horizontal section of apparatus in accordance with my invention. a is the outer
casing or tank. is the movable case or basket within it. The basket 6 is per-
forated at the bottom, and contains scraps of iron b. c is the air pipe through
which air is forced when the apparatus is at work; the rings c'e' forming the lower
part of this pipe are perforated. The air pipe connects with the air main d by a
screw union at 2 so arranged that it can be readily detached to allow the case or
basket to be lifted out for emptying and recharging. is the water inlet, it is
provided with a cock and jointed so that it can be turned out of the way of the
basket when lifted. is the outlet pipe by which the purified water passes into
the trough g, which conveys it away this pipe is provided with a cock to regulate
the flow. is a cross bar with which a hook can engage to lift the basket.
In some cases in place of removing the iron when cleaning becomes-necessary
the cleaning may be effected in situ by means of a powerful current of air or
otherwise.
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. An apparatus, substantially as described, for purifying water, consisting of a
casing or tank with water inlet and outlet, the one near the bottom, and the other
near the top, and with an inner case or basket having a perforated bottom and con-
taining within it pieces of iron and also an air pipe with perforations by which air
escapes amongst the iron; the whole so arranged that the inner case or basket may
be from time to time removed and emptied to admit of the iron being cleaned by
friction in a rotating barrel or otherwise.
2. An apparatus, substantially as described, for purifying water, consisting of a
casing or tank with water inlet and outlet, the one near the bottom and the other
near the top, and a perforated inner bottom between the inlet and the outlet
supporting pieces of iron and also an air pipe with perforations by which air escapes
amongst the iron, as herein set forth.
J
1001
CARPMAEL & Co.,
Agents for the Applicant.