An Improved Filter.
Year: 1893

page_text: Date of Application, 21st Feb., 1893
Complete Specification Left, 21st Nov., 1893-Accepted, 6th Jan., 1894
PROVISIONAL SPECIFICATION.
An Improved Filter.
We, JOHN MARION MORGAN, EDWARD BAXTER NEAVE, SAMUEL HAMILTON
WILEY, and WILLIAM SMITHDEAL, all of Salisbury, North Carolina, U.S.A.,
Gentlemen, do hereby declare the nature of this invention to be as follows:-
This our invention relates to that class of filter which is connected to the water-
supply pipe to filter the water as it is drawn off for use. The object of the
invention is to provide a filter of this class which can be readily purified
when foul.
The invention comprises a cylindrical box fitted at both. ends with a cover.
The supply-pipe-fitted with a tap above the filter-enters the box and terminates
in the interior thereof in a flared strainer. A short length of pipe is connected to
the supply-pipe above the tap and carries at its upper end a small cylindrical
receptacle containing a suitable purifying liquid. A. branch from the supply-pipe-
fitted with a tap-enters the lower cap of the filter and penetrates a short distance
into the filtrant material contained within the cylindrical box. Beneath the
filtering material and separated therefrom by a perforated partition is the filtered
water chamber from which the filtered water can be drawn by means of a tap. A
branch pipe-fitted with a tap-extends from the upper portion of the supply-pipe
just beneath the small receptacle aforereferred to.
When the filter becomes foul the tap of the filtered water chamber is turned off
and the tap of the branch entering the lower end of the filter, and also the tap
separating the smaller purifier-receptacle are turned on. The water will then be
forced through the filtering material in the opposite direction, and being mixed
with the purifying liquid will thoroughly cleanse the filter.
Dated this 21st day of February 1893. ·
W. H. MUNNS,
Applicants' Agent.
COMPLETE
SPECIFICATION.
An Improved Filter.
We JOHN MARION MORGAN, EDWARD BAXTER NEAVE, SAMUEL HAMILTON
WILEY, and WILLIAM SMITHDEAL, all of Salisbury, North Carolina U.S.A.
Gentlemen, do hereby declare the nature of our said 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 filters and has for its object to effect an improvement
in filters, whereby the many impurities of the water are extracted therefrom, while
at the same time the water is supplementally purified after the extraction of such
visible impurities as are generally held in suspension in unfiltered water.
For this purpose the main and primary object of the invention is to generally
improve upon the construction of filters adapted to be connected in the lines of
piping for water distribution, and also to provide means whereby the filter can be
easily cleaned.
And in order that our said invention may be particularly described and,
ascertained, reference is hereby made to the accompanying drawings, in which
similar letters of reference indicate corresponding parts.

page_text: Figure 1. is a side elevation of a filter constructed in accordance with this
invention. Fig. 2. is a vertical sectional view of the same.
Fig. 3 is a separate enlarged side view, and Fig. 4 is a plan view of the cylindrical
purifying box, and
1
Fig. 5 is a horizontal sectional view on the line 4-4 of Fig. 2.
a represents the filter cylinder, having the top and bottom enclosing caps bb
which may be fitted to the cylinder so as to be capable of being removed, if found
necessary or desirable. A main water supply pipe c extends from a suitable point
of attachment with the unfiltered water supply, passes into the top inclosing cap
of the cylinder, and terminates within the top in a flared or conical inlet funnel d,
inclosed at its lower open end by the strainer e which serves to collect the larger
particles of sediment in the water, before the same passes into the body of the filter.
Connected with the pipe c adjacent to the lower end of the cylinder is the branch
wash pipe f, which is carried upwards through the bottom head or cap of the
cylinder as shewn in Fig. 2, and projects therein a suitable distance or height.
The branch wash pipe is provided with a cock g, which is kept closed while the
filter is in operation, and the cock g¹ also fitted to the main supply pipe, is kept
open, while, on the other hand, when the filter is being washed, the cock gl is
closed, and the cock g is opened to allow the water to pass in at the bottom of the
cylinder. A waste pipe fitted with a stop cock h³, is connected with the portion
of the supply pipe entering the top of the cylinder, and is intended to be open
when the water is passing in at the bottom to flush and wash the filter. Supported
above the portion of the supply pipe entering the top of the cylinder is a
supplemental alum pipe or cylinder i, the flow from which is controlled by the stop
cock rattached to the short pipe connecting the tank with the supply pipe, so that
at the proper time, and at regular intervals, the alum water may be allowed to flow
into the cylinder, to assist in the purification of the water. Removably mounted
within the cylinder a, and supported near the lower end thereof, is the cylindrical
purifying box fitting the interior of the cylinder and provided with a tube k,
enclosing as a sleeve the inner projecting end of the branch wash pipe f, so that the
boxj is held in position within the cylinder, and the pipe k extends slightly above
the box so that the water passes directly. through the filtering material above the
box. The portion of the cylinder a between the top of the purifying box ; and the
top inlet, is filled with sand, or other suitable filtering material, through which
the unfiltered water first passes. The box is filled with iron filings, the top,
bottom and sides being perforated with small holes so that the filtered water, after
passing through the main filtering strata, is subjected to additional filtration,
besides being thoroughly purified before being drawn from the cylinder.
j
A small filtered water chamber or space l, is left in the bottom of the cylinder
below the perforated box j. In this chamber directly under the bottom of the
box is arranged the perforated horizontal discharge coil m. This consists of a
number of coils formed with one pipe, which projects through the side of the
cylinder and terminates in a tap n, from which the filtered water is drawn as
required.
It will be readily seen that the perforated discharge coil is capable of passing a
large quantity of water always ready to be drawn off and also acts as a strainer, to
prevent any sediment which may have worked its way through, from being drawn
off. As before referred to, by manipulating the cocks as described, water can be
passed up through the filtering material above the top of the box so as to
thoroughly wash, cleanse and carry away the same through the upper strainer with
all the impurities collected thereby.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is
1. In a filter, the cylinder open at both ends, top and bottom caps removably
losing the ends of the owlinder a volved sunnly nine entering the ton can of the

page_text: cylinder, a valved branch wash pipe connected with said supply pipe and projecting
through the bottom cap of the cylinder a distance into the same, a cylindrical
perforated purifying box removably mounted upon the inner end of said wash pipe,
which latter projects slightly above the plane of the box, said box inclosing there
between and the bottom cap of the cylinder a filtered water chamber, filtering
material within said box, a suitable filtering strata filling the cylinder above said
box and the inner terminal of said wash pipe, and a horizontal discharge coil
arranged in the filtered water chamber at the bottom of the cylinder substantially
as hereinbefore described and illustrated by the drawings.
2. In a filter, the cylinder, the valved supply pipe entering the top of the
cylinder and terminating in a flared strainer, the valved wash pipe projecting
within the bottom of the cylinder, a cylindrical perforated purifying box having a
central tube fitting over the projecting end of said wash pipe near the bottom of
the cylinder and containing suitable purifying material, a filtering strata filling the
cylinder above said box, and a horizontal perforated discharge coil arranged
within the cylinder between the bottom thereof and the bottom of said purifying
box, substantially as hereinbefore described and illustrated by the drawings.
3. The improved filter substantially as hereinbefore described.
Dated this 21st day of November 1893
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent.