Improvements in Oil Filters.
Year: 1898

page_text: Date of Application, 23rd Nov., 1898-Accepted, 14th Jan.,
1899
Improvements in Oil Filters.
I, WILLIAM CHRISTOPHER BARNS, of Christopher Works, Chalton Street,
London, Engineer, 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 the construction of oil filters and
has for its object to facilitate the cleansing of oil that has been used or which has
otherwise become dirty and impure, so as to render it fit for use, thus effecting a
very considerable economy.
In the accompanying drawings, Figure 1 is an external elevation of my improved
combination oil filter, which consists of a receiver and filter A, and filter, and
reservoir B. Figures 2 and 3 shew plan views of such receiver and filter,
Figure 4 is a vertical section taken on the line Z, Z, Figures and 3--Figure 5
is a vertical section taken on the line Y, Y, Figure 1, and Figure 6 is an isometric
view partly in section, of my improved combination oil filter. Similar letters of
reference indicate corresponding parts throughout the several figures.
The upper portion of the apparatus forms a receiver and filter A, which receives
and partially filters the dirty oil. This receiver and filter which is hereinafter
referred to as the "receiver," may be divided into several compartments a, by
partitions a, so that different kinds of oil may be simultaneously placed therein
ior filtration. The bottom of each of the compartments a, is packed with cotton
waste or other equivalent material a2, that acts as a trap to catch and retain the
grosser impurities in the oil as they settle and each such compartment is fitted with an
outlet pipe, that leads into a conduit pipe d, fitted in the corresponding compartment
of the filter B. In order to prevent such outlet pipe becoming choked with the
groszer impurities, the nozzle of the pipe projects above the bottom of the
receiver A, as shewn in the drawings, while each of the compartments a is fitted
with a lid to exclude dust and other impurities therefrom.
The lower portion of the apparatus forms a filter and reservoir B, which is
hereinafter referred to as the "filter B," and is divided longitudinally into com-
partments b. These compartments correspond in number with the compartments a,
in the receiver A, and each of such compartments b, is subdivided transversely
into two, three, four, or more subcompartments, hereafter termed filtering com-
partments," (two only of such filtering compartments being shewn in the accom-
panying drawings, and lettered 61, 62,) while a third similar compartment dis-
tinguished by the letter 63, forms a reservoir for the filtered oil, and is fitted with
a glass guage i, that is recessed in the front of the filter B, so as to protect it from
injury, and with a draw off tap y. Such subcompartments 61, 62, 63, are formed
by means of partitions c, c', the partition c, being perforated at or near the top,
and the partition c¹ at or near the bottom, as shewn in the drawings.
When however more than two such filtering compartments are employed, the
partitions between are perforated alternately at the top and bottom, while the
partition forming the front of the filtering compartment next to the reservoir is
preferably perforated at the bottom, as shewn in the drawings, so that the filtered

page_text: oil may gradually flow into and fill such reservoir. A conduit pipe d, is fitted in
each of the filtering compartments 61, the upper end of which conduit pipe receives
the lower end of the outlet pipe a³, fitted in the bottom of the corresponding com-
partment of the receiver A, as already mentioned, and as shewn in Figures 4, 5,
and 6. A fixed or removable perforated tray e, is fitted a convenient distance above
the bottom of each of the filtering compartments b', as shewn in the said Figures 4,
5, and 6 so as to form a division el; while both the filtering compartments 61, 62,
and any further similar compartments are packed with cotton waste, or other
suitable filtering material, as indicated at f, f', in Figures 3, and 5. A draw
off tap h, is likewise fitted to each of the filtering compartments b¹, below the
level of the perforated tray e. For the convenience of cleaning the interior of
the apparatus when requisite, I make the receiver A, and filter B, separate, and
removable from each other by forming a flange j, round the bottom of the
receiver, A which flange fits into the top of the filter B as shewn at Figs. 4, 5
and of the drawings. When it is desired to cleanse or repair the filter, it is
only necessary to lift off the receiver from the top of the filter, in order to obtain
ready access to the interior of the latter.
The operation of my invention is as follows:-
The impure oil having been poured into the receiver A, percolates through the
cotton waste or other equivalent material therein, which serves to separate and
retain the heavier impurities from the oil as they settle. The oil then passes
through the outlet pipe a², into the conduit pipe d, and thence into the bottom
of the filtering compartment 6', in the filter B, where the grosser impurities are
deposited, and are retained in the division e¹ formed by the perforated tray e,
which prevents their ascending with the semi-purified oil into the filtering
material f, contained in such filtering compartment 61. The oil having soaked
through such filtering material, passes through the perforations in the partition c,
into the adjoining filtering compartment 62, where it descends through the filter-
ing media f, to the bottom, and passes thence through the perforations in the
partition, into the compartment 63, which forms the reservoir, and whence it
can be drawn off as required through the tap g, while the waste that is deposited
under the perforated tray e, can be drawn off through the waste tap h.
My improved combination oil filter may be made of any convenient dimensions,
while both the receiver and filter may be fitted with any desired number of com-
partments and subdivisions, the principle of their construction remaining the
same as that herein before described and illustrated.
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
As a new article of manufacture an improved combination oil filter, consisting
of a receiver and filter A and filter and reservoir B, constructed, arranged and
combined all substantially in the manner hereinbefore described and shewn.
Dated this 22nd day ofAL
1000
ELT & Co.,
Registered Patent Agents,
43, Southampton Buildings, Holborn, Londo..
Agents for Applicant.