Improvements in and connected with Apparatus for Filtering Liquids.
Year: 1896

page_text: Date of Application, 2nd Oct., 1896
Complete Specification Left, 2nd July, 1897-Accepted, 7th Aug., 1897
PROVISIONAL
SPECIFICATION.
Improvements in and connected with Apparatus for Filtering
Liquids.
WILFRED REEVES of 39 Victoria Street, Westminster, London, S.W. Engineer
and THE REEVES PATENT FILTERS Co. LTD. of 39 Victoria Street, Westminster
London S.W. Filter Makers do hereby declare the nature of this invention to be
as follows:
Our invention relates to that class of filter in which the filtering material is
cleansed by means of reversing the flow of water and causing the water to travel
upwards through the bed of the filter.
In carrying this invention into practice the nltering chamber is divided into
two parts at a point immediately above the filtering material. This is effected by
means of a removable water-tight division plate, for example, by placing a ledge
ali round the filtering chamber at the required height and having a suitable plate
capable of being lowered on to this ledge or seat.
A pipe fitted with a valve is then provided to convey the water from the chamber
formed by the lowering of the plate, to the bottom of the filter, and a suitable
outlet above the filtering material and below the said plate is provided for the water
which has passed through the filter bed.
When it is desired to wash out the filter the above mentioned plate is lowered
on to the seat provided for it. The chamber thus formed is then filled with water
and all valves except the outlet valve, above mentioned, are closed. The valve in
the pipe connecting the upper part of the filter with the lower or collecting part,
is then opened, and the water allowed to flow through the filtering material and
away by said outlet valve.
When the filter is in use the plate is raised from its seat and the water passes
through in the ordinary way.
Dated this 30th day of September 1896.
THE REEVES PATENT FILTERS CO., LTD.,
ERNEST COWLAND,
Consta
WILFRED REEVES.
COMPLETE SPECIFICATION.
Improvements in and connected with Apparatus for Filtering
Liquids.
WILFRED REEVES, Engineer, of 39 Victoria Street, Westminster, London, S.W.,
and THE REEVES PATENT FILTERS Co. LTD. of 39 Victoria Street, Westminster,
COMPLETE SPECIFICATION.
Improvements in and connected with Apparatus for Filtering
Liquids.
WILFRED REEVES, Engineer, of 39 Victoria Street, Westminster, London, S.W.,
and THE REEVES PATENT FILTERS Co. LTD. of 39 Victoria Street, Westminster,

page_text: London S.W. 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:-
Our invention relates to that class, of filter in which the filtering material is
cleansed by means of reversing the flow of water and causing the water to travel
backwards through the bed of the filter.
In carrying this invention into practice the filtering chamber is divided into
two parts at a point immediately above the filtering material. This is effected by
means of a removable water tight division for example, by placing a ledge all
round the filtering chamber at the required height and having a suitable plate
capable of being lowered on to this ledge or seat.
A pipe fitted with a valve is then provided to convey the water from the chamber
formed by the lowering of the plate to the bottom of the filter and a suitable
cutlet above the filtering material and below the said plate is provided for the
water which has passed through the filtering bed.
In the drawing the filtering chamber is divided at the ledge C by lowering the
plate E on to the said ledge by means of the chain F. This plate E rests on the
ledge C and forms the upper chamber A in the filter cutting off the water from
the lower chamber B and the filtering material when it is lowered into position.
A water tight pocket N runs round the filter below the ledge C above the filtering
material D. A pipe having an opening above C fitted with a valve G and com-
municating with a chamber J below the filtering medium D is provided to carry
the water from the chamber A to J. The overflow pipe communicating with the
pocket N and fitted with a valve H is also provided."
When the filter is used for filtering purposes the plate E is raised clear of C,
the valvės G and H are closed and the valve L is opened. The water then passes
through the filtering material D, the nozzles K to the chamber J and out by the
valve L.
When however the filtering material requires cleaning the valve L is closed and
the valves Hand G are opened. The plate E is then lowered on to the seat C
which is preferably provided with some material such as wood, rubber, or the
like M to form a watertight joint. A is then filled with water which flows
through G to J and then through the nozzles K up through the filtering material D
to the pocket N and out by the valve H.
The plate E may he made flat or of any other suitable form or the
chambers A and B may be separated by a fixed plate having a suitably large valve
in the centre.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. A filter in which the upper part of the filtering chamber is capable of being
temporarily formed into a separate chamber at a point above the filtering medium,
substantially as described and for the purposes specified.
2. A filter constructed substantially as described with reference to the
accompanying drawing and operating as and for the purposes specified.
Dated the 1st day of July 1897.
THE REEVES PATENT FILTERS CO., LTD.,
ERNEST COWLAND,