Improvements in and connected with Filters.
Year: 1899

page_text: Date of Application, 13th Nov., 1899-Accepted, 23rd Dec., 1899
COMPLETE SPECIFICATION.
Improvements in and connected with Filters.
I, ANDREW GILBERT SHEAK, Salesman, of Binghamton, in the State of New
York, United States of America, 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:-
The invention relates to improvements in water filters.
The object of the present invention is to provide a simple, inexpensive and
efficient water filter, designed to be used in connection with a service pipe, and
adapted to clean itself automatically and thereby obviate the necessity of re-
moving it and taking it apart to accomplish this result.
The invention consists in the construction and novel combination and arrange-
ment of parts, hereinafter fully described, illustrated in the accompanying
drawings and pointed out in the claims hereto appended
In the drawings:-
Figure 1 is a vertical sectional view of a water filter constructed in accordance
with this invention.
Figure 2 is a horizontal sectional view.
Figure 3 is a detail view of the frame which supports the filtering cylinder.
Figure 4 is a detail view of the cover.
Figure 5 is a vertical sectional view of a modification of the invention.
Like letters and numerals of reference designate corresponding parts in all
the figures of the drawings.
A designates an outer cylindrical casing having an upper enlarged interiorly
threaded end, which is engaged by an exteriorly threaded hollow cover B, which
is supported by the shoulder or seat formed by such enlargement, and a packing
is arranged on this seat h to provide a water tight joint. The casing is provided
with interior vertical flanges a forming a way for the reception of a brush C,
to hold the same in operative position. From the bottom of the casing depends
a central tube z, having an exteriorly threaded lower end, and around the opening
at the upper end of the tube is a socket J. forming a race for a series of anti-
friction balls K, upon which rests a rotary frame D, carrying a filtering cylinder
or casing E. The casing A is provided at its bottom with an opening F, threaded
to receive a faucet or plug which provides for a flow of water for a purpose herein-
after described.
The casing A is provided beneath the groove or way with a threaded opening
which receives a plug H, and which provides for the introduction and removal
of the brush C. A new brush may be readily introduced into the casing A, and
packing is arranged at the lower end of the opening h, to prevent leakage.
The cover B, which has an interior chamber is provided with a top opening N,
threaded to receive a service pipe, and the lower wall N¹ is inwardly offset and
is provided with a central socket 7, forming a bearing for a shaft or journal m
of the frame D. This bottom N¹ provides a lower recess for the reception of a
circular water wheel L. The walls of the recess consists of tapered portions n,
forming radially arranged shoulders and provided with passages, extending
from the exterior chamber į to eject water upon the water wheel. The curved

page_text: faces n³ extend gradually inwardly and are adapted to direct the water against
the water wheel, which is thereby-rotated. The streams of water are delivered
upon the water wheel in a direction tangential with relation to the same and the
casing.
The frame D comprises an upper disk L, a lower disk M, and vertical bars t,
connecting the disks at opposite sides of the frame. The journal m projects from
the top of the frame, which is provided with a groove a, formed by flanges and g,
and receiving the upper edge of the filtering cylinder E. The bottom of the
frame is provided with a similar groove s¹, to receive the lower edge of the
filtering cylinder. The bars t, which are rigid with the upper disk, fit in
grooves of the lower disk, and prevent the frame from exerting any strain
on the filtering cylinder. The grooves are designed to be filled with suitable
impermeable cement, to secure water tight connection. The filtering casing,
which may be made of natural or artificial stone, porcelain, baked clay or the
like, may be of any other configuration which will permit it to rotate within an
exterior casing. A central tube w depends from a central opening ", of the
bottom of the frame and extends through and projects beyond the tube z, which
is screw threaded at its lower end, to receive a nut e, forming a seat for a suitable
packing. The bottom of the frame is enlarged at the top of the tube ic, to pro-
vide a cone bearing f to rest on the anti-friction balls.
An elastic packing 9 is placed on the upper portion of the tube z, and is
engaged by a thumb nut 0, mounted on the threaded portion of the tube and
engaging the packing 9, with just sufficient pressure to make a water tight
joint, and when in, this position, it also engages the packing of the nut e. The
thumb nut has an annular groove forming a lower supporting flange », which
is engaged by screws , of a water distributor 1'. The water distributor P con-
sists of a tube swiveled to the thumb nut O, and provided with a depending stop
cock R, and a pipe y extends from one side of the distributer.
The brush C moves freely in the groove or way of the outer casing and is held
against the inner filtering casing by springs cl. "When it is desired to clean the
filtering casing, the cock R is open; the thumb nut 0 is screwed tightly against
the packing g to raise its lower end from the packing of the nut e, and the faucet
or plug of the opening F is opened to permit the water to escape freely. The
pressure being removed from the interior of the lower portion of the filter, the
water is ejected forcibly through the openings o, and rotates the water wheel.
This causes the filtering casing to revolve against the brush, which, together with
the flow of water, will rapidly clean the filter of all accumulations. The water
which escapes around the tube w flows through the open stop cock R. After the
filter is cleaned, the cut off is closed at F and the thumb nut is turned down
firmly on the packing of the nut e. The stop cock is also closed and the water
entering the filter must pass through the filtering casing and may be conveyed
to a suitable vessel.
In Figure 5 is illustrated a modification of the invention in which the outer
casing is provided with exterior screw threads to be engaged by a threaded
Hange 3, of a sectional cover 4, composed of an upper section or cover proper,
and a lower section 5, having a central bearing 9, for a journal 10, of a support-
ing frame 11. The top of the casing receives a water wheel 12 and is provided
with passages similar to those heretofore described, for ejecting water upon the
water wheel.
From the bottom 16, of the casing 1 depends a tube 17 and around the opening
at the top thereof, is a socket 18, receiving anti-friction balls 19, upon which
rests and revolves a frame 11 that carries a filtering casing 20. At one side of
the casing are arranged upper and lower U-shaped guides, extending over the
top and under the bottom of the filtering casing and receiving a cleaning device 22,
constructed and operating substantially the same as that heretofore.described.
The lower guide 23 may be fixed to the casing, and the upper guide 24 is detach-
ably interlocked with the same, · ·

page_text: 8. A filter comprising an exterior casing, an interior rotary filtering casing, a
water wheel connected with the interior casing, the upper and lower substantially
U-shaped guides located above the inner casing, and a cleaning device supported
in the guides and engaging the exterior of the inner casing, substantially as
described.
9. A filter comprising an exterior casing, an interior rotary filtering casing,
a supporting frame consisting of a shaft extending through the inner casing, a
lower plate fixed to the shaft and engaging the lower end of the inner casing
an upper plate engaging the top of the inner casing and a screw passing through
the upper plate and engaging the shaft and adapted to clamp the said plates nguinst
the casing, and a water wheel connected with the screw, substantially as described.
10. A filter comprising an exterior casing, an inner filtering casing, and a
supporting frame composed of upper and lower plates engaging the top and
bottom of the inner casing, and a shaft rigid with one of the plates and detach-
ably connected with the other and extending through the inner casing, said shaft
being provided at its lower portion with a longitudinal bore or opening com-
municating with the interior of the inner casing, substantially as described.
11. A filter comprising an exterior casing having a depending tube and pro-
vided with an annular flange concentric with the tube, an inner rotary filtering
casing provided with a depending tubular portion communicating with its interior
and having a shoulder or seat, a nut engaging the said flange and arranged to
engage the said shoulder or seat, and a stop cock carried by the nut, substantially
desoviled
Dated this 18th day of November 1899.
For the Applicant,
J. G. LORRAIN, M.I.E.E., M.I.Mech.E.,
Norfolk House, Norfolk Street, London, W.C., Chartered Patent Agent.

page_text: The inner filtering casing is of greater thickness than before described, and
the supporting frame is composed of a shaft 30 and upper and lower disks 31
and 32, engaging the filtering casing, which has a bore 29, for the shaft 30.
The lower disk 32 is integral with the shaft 30, which is of less diameter than
the bore 29, to provide an interior chamber, and the upper disk has a flange 35,
forming a socket for the upper end of the shaft 30, and fitting in the bore of the
filtering casing. The upper plate is provided with a central aperture, through
which passes a screw 36, which engages a threaded socket of the shaft 30. The
screw has a head 38, to engage the upper disk, and it is adapted to force the
parts tightly against the filtering casing. The journal 10 is integral with the
screw, which is threaded at 39, to receive the water wheel.
The lower portion 40 of the shaft 30 extends through the tube 17, and is provided
with a bore 41, communicating at its upper end with the chamber 29, by trans-
verse bores. The bottom of the casing 1 is provided with a depending flange 43,
arranged concentric with the tube 17, to provide a recess for a packing 44. The
Hange 43 is interiorly threaded and is engaged by a nut 46, having a tubular body
portion and provided with lower screw threads for the attachment of a stop cock 47.
The lower end 51 of the shaft 30 is threaded to receive a nut 50, which supports
a packing 49. The packing 44 is compressible and the tubular nut 46 is adapted
to be operated similar to the nut heretofore described, when it is desired to clean
the filtering cylinder.
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 comprising an exterior casing, an interior filtering casing, a water
wheel connected with the latter and adapted to rotate the same, and a stationary
cleaning device engaging the filtering casing, substantially as described.
2. A filter comprising an exterior casing, a hollow cover provided with a recess
and having discharge openings around the same, a rotary inner filtering casing,
and a water wheel connected with the same and arranged in the said recess,
substantially as described.
3. A filter comprising an inner rotary frame composed of top and bottom por-
tions and connecting bars spacing the same, an exterior casing, a filtering cylinder
secured to the top and bottom portions of the frame, the connecting bars thereof
being of sufficient length to prevent the frame from exerting pressure on the
cylinder, and means for rotating the cylinder, substantially as described.
4. A filter comprising an exterior casing, a hollow cap or cover having dis-
charge openings, an exterior filtering casing, a rotary wheel connected with the
filtering casing, a distributing device, and means for drawing off the water from
the space between the inner and outer casings, substantially as described.
5. A filter comprising an exterior casing having a ball bearing at its bottom
and provided with a depending flue, an inner filtering casing having a tube
extending through the said tube and projecting beyond the same, and a nut
arranged on the projecting end of the inner tube and forming a seat for a
packing, substantially as described.
6. A filter comprising an outer casing having a depending tube, an inner rotary
filtering casing provided with a tube extending through and projecting beyond
the said tube, a lower nut arranged on the inner tube, an elastic packing disposed
on the outer tube, and an adjustable nut interposed between the said nut and the
elastic packing and engaging the same and adapted to compress the latter to
release the former, substantially as described.
7. A filter comprising an exterior casing, a top composed of two separate
sections, the upper section forming a cover and engaging over the upper edge of
the exterior casing, and the lower section fitting within the exterior casing, an
interior rotary filtering casing, a water wheel connected with the inner casing,
and a stationary cleaning device, substantially as described.

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