Improvements in Filters.
Year: 1895

page_text: Date of Application, 16th May, 1895-Accepted, 22nd June, 1895
COMPLETE SPECIFICATION.
[Communicated from abroad by INTERNATIONAL FILTER Co., of No. 218,
La Salle Street, Chicago, Illinois, United States of America.]
Improvements in Filters.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co. Patent
Agents, 45 Southampton Buildings, in the County of Middlesex, 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 improvements in liquid filters and has for its object to
provide a device of this character that is simple in construction, conveniently taken
apart for repairs or other purposes, and easily cleansed.
In the drawing
:―
Figure 1 is part elevation and part section; the section being on line 1, Fig. 2,
looking in the direction indicated by the arrow.
Figure 2, a vertical section on line 2, Fig. 1, taken at right-angles with reference
to Fig. 1.
Figure 3, an elevation of the handle disk of the valve controlling the admission
of the liquid into the filter.
Figure 4, a vertical section on angular line 4, Fig. 2; and
Figure 5, a broken-away horizontal section on line 5, Fig. 2.
The body of the filter consists of two separable parts, A and B, and is of an
oval flattened form in cross-section; thus presenting a large filtering-surface within
a compact space.
The upper or cap-part A is provided interiorly with a sleeve-extension a. The
part B is provided interiorly with a hub-extension a', which is adapted to fit into
the sleeve a, as shown. This hub is provided in its upper end with a screw-
threaded recess a², for the engagement of the inner threaded end of a screw
clamping-bolt, C, which is loosely inserted through the body-part A, and has a
shouldered head a³ forming the exterior end thereof which fits closely to the body
surface. Thus the two parts, comprising the body, may be closely clamped
together or the cap-part conveniently removed.
The nut a, on the bolt C, serves to loosely connect the bolt and body-part or
cap A in taking off or replacing the same.
a
The filtering-chamber is divided into two compartments, C1 and C2, by.
number of filtering-pads, D, the outer edges of which are clamped between the
corresponding surfaces of the body-parts. These pads are cut out in the center so
as to fit down around the hub a' and rest on the annular shoulder-surface b, which
is in the same plane with the end of sleeve a, thus forming a tight-joint around the
outer edge and in the center when the body-parts are firmly clamped together.
The filtering-pads are also clamped between and stiffened by the perforated
disk-plates b².
The hub is provided, at intervals, with a number of spirally arranged inlet-
passages 63 (Fig. 5) through which the water or other liquid enters the filtering-
chamber in a horizontal plane, so that the force of the incoming volume will not
come in direct contact with the filtering-diaphragm.
The inlet-valve, E, of the filter is connected to the underside of the body-part, B,
as at 6. This valve is in turn connected with the ordinary hydrant-faucet, F, by
a tube b, through which the water passes to the filter. By this arrangement the

page_text: water may be drawn directly from the faucet when it is not desired to pass it
through the filter.
The disk hand-grasp d, on the stem d', of the inlet-valve E is provided with one
or more elongated slots d² (Fig. 3.) through which is inserted a screw, d³, engaging
with a gage-finger d', Fig. 2. One end of stop d' is pivoted, as at do, to a collar d',
(Figs. 2 and 4.) the opposite or loose end of the stop lying in the pathway of the
gage-finger. The gage-finger may be set to give the inlet-valve just the required
opening, as contact with the stop d will prevent it from being opened too far;
thus regulating the volume of water admitted.
When the water flows in slowly, the chamber g, in the hub a¹, breaks the force
of the current. By raising the stop d' the inlet-valve may be thrown wide open.
In operation, the liquid to be filtered enters the lower recess or compartment C¹
of the filtering-chamber, then percolates upwardly through the filtering-substance
into the reservoir-compartment C²; the filtered liquid running out through the
bib-tube gl.
An outlet-valve, H, is inserted in the lower body-part and opens into the
receiving-compartment. When it is necessary to flush and clean out the receiving-
compartment, it may be done by opening the inlet-valve E far enough to admit a
full stream, which entering through the horizontal, spirally arranged inlet-passages
in the hub, has the effect of imparting a centrifugal action to the body of water
and forcing the same out through the valve H, thus thoroughly washing out and
cleansing the filter without the necessity of taking the same apart each time.
The lower body-part is provided in its edge with an annular groove, h, which
will receive the drip that may be expressed when the parts are clamped together,
and which is conducted off through passage h¹.
The filtering-diaphragm or pads may be composed of any suitable substance or
material, and are easily and quickly renewed when no longer serviceable.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me by
my foreign correspondents, I declare that what I claim is :-
-:
1. In a liquid-filter, a chambered body, consisting of two parts, the upper part
being provided interiorly with a sleeve-extension, and the companion part with a
hub-extension, said hub having a screw-threaded recess and fitting into said sleeve,
and a clamping-bolt inserted through the upper body-part and having a threaded
engagement with said recessed hub, substantially as described.
2. A liquid-filter, consisting of two separable chambered parts, adapted to be
clamped together, and a filtering-diaphragm, dividing said chamber into two
compartments, substantially as described.
3. A liquid-filter, consisting of two separable chambered parts, adapted to be
clamped together, of a filtering-diaphragm, comprising a number of pads and
perforated disk-plates and clamped between the bearing-surfaces of the body-parts,
substantially as described.
4. The combination with a filtering-body, provided interiorly with a hub
extension having a number of spirally arranged liquid passages therein, an inlet-
valve connecting therewith, and a flushing-valve, discharging outwardly from the
receiving-chamber, substantially as described.
5. In a filter, the combination with the inlet-valve, of a disk hand-grasp, mounted
on the stem thereof and provided with one or more elongated slots, a screw,
inserted therethrough, a gage-finger, secured to said screw, and a stop, lying in the
pathway of said gage-finger, substantially as described.
Dated this 16th day of May 1895.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applican,