An Improved Oil-filter.
Year: 1899

page_text: An Improved Oil-filter.
LEO WHITE, of 66, Raglan Road, Smethwick, in the County of Stafford,
Clerk, do hereby declare the nature of this invention to be as follows:-
This invention has for its object the production of a filter suitable for use in
filtering waste-oil or dirty oil and thereby rendering it fit for commercial use.
In carrying out my invention I provide an outside casing or shell hencefor-
ward referred to as the container such container may be made in one length or
in several sections fitting together to form one complete container; within the
container I provide the following parts.
I provide the upper removable dirty-oil receptacle and within such receptacle
I provide the first filtering compartment, to the lid of the first filtering compart-
ment I secure a syphon for the purpose of conveying the dirty oil out of the
upper dirty oil receptacle on to the waste or other filtering substance lightly
packed into the first filtering compartment; the heavy settlings or sediment
deposited at the bottom of upper dirty-oil receptacle can be emptied from time
to time as required.
When the syphon has drawn the oil from the upper dirty oil receptacle until
the surface of the oil is level with the mouth of syphon the said syphon ceases
working until more waste oil is poured into the upper receptacle sufficient in
quantity to cover the syphon, and when charged with such waste-oil it should
be poured gently down the charging pocket (provided inside the upper waste-oil
receptacle) so as not to disturb the oil already in the upper dirty-oil receptacle,
a perforated disc is provided in the pocket for the purpose of catching any pieces
of waste, chips or other foreign substance that may have become mixed with
the dirty oil in the workshop or other place from whence the dirty oil has been
removed, the perforated disc also breaks the force of the oil poured down the
pocket so that it will not be so liable to stir up the dirty oil as wouid be the
case if the charge was poured direct into the upper receptacle.
The first filtering compartment is filled with unsized cotton waste or with
other suitable filling substance but such filling is not packed too hard; some
distance from the bottom of the first filtering compartment is provided a perforated
disc which is supported on suitable rests fixed inside the said first filtering com-
partment, the compartment should be packed up to the disc rests.
Outlet tubes are provided near the bottom of first filtering compartment so that
the partly filtered oil flows through the outlet tubes and drops onto the tapered
sides of the inverted hopper of second filtering compartment.
I next provide the second filtering compartment which consists of an inverted
hopper formed with its mouth on the under side, the face of such hopper slants
towards the centre until it reaches a second chamber which is open at the top and
provided with a removable cover, within the cylindrical chamber an internal
cylindrical chamber is in some cases formed, "centrally with its outer chamber"
so that the lower part of the main cylindrical chamber is in the form of a ring,

page_text: from such ring shaped space project two conduits carried in an upward direction,
such conduits or pipes are carried through the tapered surface of the inverted
hopper, the ends of the conduits may be cowled to prevent partly filtered oil
falling in, or the ends may be bent to any convenient angle to prevent the
unfiltered oil dropping in. In some cases I dispense with the two conduits and
with the internal compartment; in such cases the second filtering compartment
would be fitted with a removable flanged lid, the bottom of the flange being below
the perforated holes in the upper end of compartment.
To
I next provide the third filtering compartment which consists of a drum and
two wheels one wheel being situated at the bottom of the drum and the other
wheel being situated some distance from the upper edge of drum so as to form
a compartment above the upper wheel, a suitable space is provided between the
upper wheel and the lower wheel within which to pass the unsized cotton waste
or other suitable filling material; under the upper wheel and on the top of the
lower wheel are provided perforated discs; the two wheels are secured together
by means of a suitable central tube passing through the centre of both wheels
so that a nut can be tightened on the lower end of the tube to draw the parts
together, the upper end being rivetted into the central eye of upper wheel:
prevent the final chamber from moving, a ledge is provided over the internal peri-
phery of the filtering box, the lower wheel of the lower chamber is secured to the
drum of such lower chamber by means of screws or other suitable fastenments.
In using my improved filter, dirty oil is placed in the top compartment or
upper removable dirty-oil receptacle and when the level of such oil rises above the
upper internal surface of the highest part of syphon, the dirty oil will flow
through the syphon into the first filtering chamber passing through the unsized
cotton waste or other filling and being thereby partly filtered then dripping out
through the outside tubes near bottom of first filtering chamber onto the inverted
hopper shaped surface radiating from the second filtering chamber, the partly
filtered oil then rises in the hopper shaped outer vessel until such oil reaches
the perforations in the upper part of second filtering chamber passing through
such perforations onto the lid or perforated grid of second filtering chamber
thence into the second filtering chamber where the partly filtered oil becomes
further cleansed in its decent through the filtering material of second filtering
chamber, the cleansed oil then dripping through the perforated or gridded bottom
of the second filtering chamber onto the upper grid of lowest filtering chamber
through which it filters, passing out at the bottom perforated plate or grid, reach-
ing the lower end of the container as clarified oil ready for commercial use.
When the second filtering chamber is provided with the internal tube and
two upward conduits, the course of the oil that drips from the first filtering
chamber is varied and directed in the following manner: The oil dripping on
to the surface of the inverted hopper, collects in the conically bottomed vessel
and rises therein until it reaches the ends of the conduits or pipes, the oil when
it reaches that height has become cleansed by the further settlings on the conical
bottom of the outer vessel and passing down the conduits into the packed ring-
chamber is there further purified by passing upwards through the packing within
such ring-chamber; the oil then flows over and through the central tube on to
the final or lower filtering chamber there to be finally cleansed as herein before
described.
By another modification of hopper and chamber I form the hopper shaped
arrangement in the following manner.
I provide a central cylinder or chamber with a fixed perforated bottom and
a removable perforated lid, such central cylinder or chamber being packed with
the unsized cotton waste or other suitable filtering material.
The action of this modification is similar to the action of the other modifications
excepting that when the oil reaches the hopper shaped receptacle it drops on the
tapered sides thereof until the oil rises up to the perforated lid of the central
cylinder, the oil then passes through the waste or other packing contained in

page_text: the cylinder, dropping through the perforated bottom thereof onto the lower wheel
shaped filtering box.
.
I prefer in some cases to fit the upper part of the main shell of my improved
oil filter with a jacket, either internally or externally, such jacket forming a
peripheral chamber which can be supplied with hot water for the purpose of
assisting the filtering of the dirty oil by quickly depositing sediment.
Dated this 27th day of June.
ALFRED WILLIAM TURNER.
Cobden Buildings, 67A, Corporation Street, Birmingham,
Agent for the Applicant.
An Improved Oil-filter.
I, LEO WHITE, of 66, Raglan Road, Smethwick, in the County of Stafford,
Clerk, 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 has for its object the production of a filter suitable for use in
filtering waste oil or dirty oil and thereby rendering it fit for commercial use.
I will now proceed to describe the nature of my invention reference being
had to the accompanying drawing which represents a vertical section of the shell
with its internal filtering chambers and connections.
In carrying out my invention I provide an outside casing or shell A, A hence-
forward referred to as the container, such container may be made in one length
or in several sections fitting together to form one complete container; within the
container I provide the following parts. I provide the upper removable dirty-oil
receptacle A and within such receptacle I provide
compartment E, to the lid of the first filtering I
the first filtering
for the purpose
of conveying the dirty oil out of the upper dirty
a syphon
oil receptacle on to the waste or
into the first filtering compartment E; the heavy settlings or sediment deposited
other filtering substance lightly packed
at the bottom of upper dirty oil receptacle can be emptied from time to time as
required.
secure
When the syphon C has drawn the oil from the upper dirty oil receptacle A
until the surface of the oil is level with the mouth of syphon, the said syphon
ceases working until more waste oil is poured into the upper receptacle A suffi-
cient in quantity to cover the syphon, and when charging with such waste oil
it should be poured gently down the charging pocket B (provided inside the
upper waste oil receptacle) so as not to disturb the oil already in the upper dirty-
oil receptacle A, a perforated disc R is provided in the pocket for the purpose of
catching any pieces of waste, chips, or other foreign substance that may have
become mixed with the dirty-oil in the workshop or other place from whence the
lirty oil has been removed, the perforated disc R also breaks the force of the
il poured down the pocket, so that it will not be so liable to stir up the dirty oil as
vould be the case if the charge was poured direct into the upper receptacle.
The first filtering compartment E is filled with unsized cotton waste, or with
ther suitable filtering substances,, but such filtering substance is not packed
oo hard; near the top is provided a perforated disc D and some distance from
he bottom of the first filtering compartment is provided a perforated disc D'
hich is supported on suitable rests fixed inside the said first filtering compart-
ent, the compartment E should be packed up to the disc D.

page_text: .
Outlet tubes S are provided near the bottom of first filtering compartment E
so that the partly filtered oil flows through the outlet tubes S and drops onto
the tapered sides T of the inverted hopper of second filtering compartment.
I next provide the second filtering compartment which consists of an inverted
hopper T formed with its mouth on the under side, the face of such hopper slants
towards the centre until it reaches a second chamber E. which is open at the top
and provided with a removable lid or cover.
I next provide the third filtering compartment E which consists of a drum
and two wheel-shaped grids, one wheel being situated at the bottom of the drum
and the other wheel being situated some distance from the upper edge of drum so
as to form a compartment above the upper wheel, a suitable space is provided
between the upper wheel and the lower wheel within which to pack the unsized
cotton waste or other suitable filtering material; under the upper wheel and on
the top of the lower wheel are provided perforated discs L and L'; the two wheels
are secured together by means of a suitable central tube or connecting rod M
passing through the centre of both wheels so that a nut N can be tightened on
the lower end of the said tube or connecting-rod to draw the parts together, the
upper end being rivetted into the central eye of upper wheel; to prevent the
final chamber E from moving, a ledge is provided over the internal periphery
of the filtering box, the lower wheel of the lower chamber is secured to the drum
of such lower chamber by means of screws K or by other suitable fastenings.
In using my improved filter, dirty-oil or other liquid is placed in the top com-
partment or upper removable dirty oil receptacle A and when the level of such
oil rises above the upper internal surface of the highest part of syphon C, the
dirty oil will flow through the syphon into the first filtering chamber E passing
through the unsized cotton waste or other filtering substance and being thereby
partly filtered, then dripping out through the outside tubes S near bottom of
first filtering chamber onto the inverted hopper shaped surface radiating from
the second filtering chamber, the partly filtered oil then rises in the hopper
shaped outer vessel F until such oil reaches the perforations in the upper part
of second filtering chamber, passing through such perforations onto the per-
forated disc D2 of second filtering chamber, thence into the second filtering
chamber where the partly filtered oil becomes further cleansed in its descent
through the filtering material of such second filtering chamber E¹, the cleansed
oil then dripping through the perforated bottom of the second filtering chamber
onto the upper grid or wheel J and perforated plate L of lowest filtering chamber
through which it filters, passing out at the bottom perforated plate L and grid
or wheel J, reaching the lower end O of the container, as clarified oil ready for
commercial use.
By another modification of hopper and chamber I form the hopper shaped
arrangement in the following manner.
I provide a central cylinder or chamber with a fixed perforated bottom and
a removable perforated lid, such central cylinder or chamber being packed with
the unsized cotton waste or other suitable filtering material.
The action of this modification is similar to the action of the other modification
excepting that when the oil reaches the hopper shaped receptacle it drops on the
tapered sides thereof until the oil rises up to the perforated lid of the central
cylinder, the oil then passes through the waste or other packing contained in
the cylinder, dropping through the perforated bottom thereof onto the lower wheel
shaped filtering box.
I prefer in some cases to fit the upper part of the main shell of my improved
oil filter with a jacket, either internally or externally, such jacket forming a
peripheral chamber which can be supplied with hot water for the purpose of
assisting the filtering of the dirty oil by quickly depositing sediment.
The sediment is drawn off through the tap P, the clear oil or other clear liquid
being drawn from the lower tap Q.
To assist in the constant flow of liquid through my improved filter I provide

page_text: De
leading from the upper part of shell to the mouth or inner
surface of the inverted hopper of chamber E'; I also provide an air outlet tube V
for the purpose of conducting and removing any air displaced by the inlet of
oil or other liquid.
Altho my improved filter is constructed for use in filtering dirty oil never-
theless it can be used for filtering other liquids.
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:-
A filter consisting of an outer shell or casing within which are assembled
filtering chambers and connections for use in filtering dirty oil or other dirty
liquid, the liquid being first poured into the charging pocket from whence it
passes through the filtering chambers E, E and E reaching the under com-
partment of the shell as clarified oil or as clarified liquid, substantially as illus-
trated and described.
Dated this 27th.
P
1900.
LEO WHITE.
Witness, Alfred William Turner,
International Patent Agent,
Cobden Buildings, 67A, Corporation Street, Birmingham