Improvements in Oil Filters.
Year: 1895

page_text: Date of Application, 30th July, 1895-Accepted, 12th Oct., 1895
Improvements in Oil Filters.
I, PETER NEWMAN BROOKS, 632 North 16th Street, Philadelphia, Pennsylvania,
U.S.A., Machinist, 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 principal object of my present invention is to provide a simple, durable,
self-contained and comparatively inexpensive device or apparatus for expeditiously
and efficiently filtering new as well as waste oil, and to construct, arrange and
combine the various parts of the apparatus in such manner that the filtering
material may be cleaned at any time and without removing it and without drawing
off the filtered oil.
The invention consists in the improvements hereinafter described and pointed
out in the claims and its nature, characteristic features and scope will be more
fully understood from the following description taken in connection with the
accompanying drawings forming part hereof and in which is illustrated in Figure 1,
partly in section and partly in elevation an oil filter embodying features of my
invention, and in Fig. 2, details of construction.
In the drawings, 1, is a base or stand for supporting the entire or complete
apparatus. 2, is a reservoir or tank for the purified or filtered oil. This tank or
reservoir 2, is provided internally with a receptacle 3, for the oil to be filtered,
and with a depending filtering vessel 4, whose interior communicates with the
interior of the reservoir or tank 2. This filtering vessel or chamber 4, is of less
diameter than the tank or reservoir 2, in order to fit into the stand 1, and commu-
nicates at its base by way of a pipe 5, passing through the interior of the
reservoir or tank 2, with the receptacle 3. This vessel or chamber 4, contains
filtering material, as cork shavings, which are retained therein by means of a
perforate cap 6, overlying the end of the pipe 5, and by means of a gauze or wire
netting 7, located between the chamber or vessel 4, and reservoir or tank 2. 8, is
a steam or hot water coil located under the cap 6, and adapted to heat the fluid
supplied to the filtering material. 9, is a hand-valve applied to the portion of the
pipe 5, that lies without the filtering chamber or vessel and that is adapted to
control the flow of oil from the receptacle 3, to the filtering vessel 4, in order to
permit the oil to remain in the former long enough to allow the grosser impurities
to settle therein. 10, is a spigot or hand-valve by means of which purified oil
may be drawn from the reservoir or tank 2, into oil cans or other vessels for use,
and 11, is a valve by means of which purified oil may be led through pipes (not
shown) to any point for use. 12, is a water induction pipe resting upon or mounted
above the cap 6, and extending through and out of the top of the reservoir or
tank 2, in order to permit of the application of a hose or other source of supply
to its upper end. This pipe 12, is perforated at its lower portion so as to discharge
water radially through the filtering material and is provided with perforated arms 13,
overlying the filtering material and discharging downward upon it. 14, is a spigot
by means of which water and impurities may be permitted to escape from the
filtering vessel 4. 15, is a sight gauge and connections by means of which the
height of water in the vessel or chamber 4, and tank or reservoir 2, may be ascer-
tained, and in this counection it should be stated that water should fill the vessel 2,
to about the level indicated by the dotted line. 16, is a sight gauge and
connections by means of which the height of the supernatant and purified oil in
the tank or reservoir 2, may be ascertained. lu use water is introduced by means

page_text: of the pipe 12, or otherwise, into the chamber or vessel 4, and reservoir or tank 2,
until it reaches about the level indicated by the dotted line. Either new or waste
oil to be filtered is introduced into the receptacle 3, and its escape therefrom may
be retarded by means of the valve 9, in order to permit grosser impurities to
settle in the receptacle 3. From the receptacle 3, oil passes by way of the pipe 5,
and is heated by the coils of pipe 8, and is then discharged beneath the cap 6,
through the perforations of which it escapes into the vessel or chamber 4, and the
heated oil rises through the filtering material and through water contained in the
vessel 4, and tank 2, whereby it becomes purified and then floats upon the surface
of the water in the tank or reservoir 2, from which it is drawn off by the spigot 10,
or valve 11, for use. Whenever it becomes necessary or desirable to clean or
wash the filtering material, this result may be readily accomplished by permitting
water to escape from the pipes 12 and 13, through the filtering material, and away
from the apparatus by way of the spigot 14, it being understood that the valve 9,
is closed during this operation, although the purified oil remains supernatant and
need not be drawn off from the reservoir or tank 2, during the time that the
filtering material is being cleansed by jets of water issuing from the pipes 12 and 13,
as has been already described.
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. The combination in an oil filter, with an oil reservoir provided with an outlet
connection as 11, and with a depending filter chamber having filtering material
fixed therein and having an opening at its bottom and a pipe applied to said
opening for introducing oil and for discharging water, of, a perforated cap mounted
over said opening, and perforated water pipes supported on said cap and embedded
in and overlying said filtering material for flooding said chamber to float the
supernatant oil in the reservoir and for introducing jets through and upon the
filtering material, substantially as described.
2. The combination in an oil filter with, a filter chamber depending from an oil
reservoir and having filtering material fixed therein and having an opening at its
bottom for introducing oil and for discharging water, of a perforated cap mounted
over said opening, and perforated water pipes supported on said cap and embedded
in and overlying said filtering material for flooding said chamber to float the
supernatant oil in the reservoir and for introducing jets radially through and upon
the filtering material, substantially as described.
3. The combination in an oil filter with, a filter chamber depending from
and communicating with an oil reservoir, of a pipe leading from an oil receptacle
and opening into said chamber and provided with an oil valve and with a spigot,
a perforated cap and a gauze netting and interposed filtering material mounted in
said chamber and above the open end of said pipe, a radially perforated water
induction pipe resting on said cap and embedded in the filtering material, horizontal,
tubular or pipe-like arms radiating from said pipe and overlying the filtering
material and provided on their under sides with perforations, and a steam coil
beneath the perforated cap, substantially as described.
4. The combination with, a filter chamber and a pipe communicating with its
base of, a perforated cap mounted on the floor of said chamber and over the open
end of said pipe, filtering material resting on said cap, and a vertical water pipe
mounted on the cap and embedded in the filtering material and radially perforated,
substantially as described.
Dated this 8th day of July 1805
PETER N. BROOKS.
Boult & Wade,
Agents for the Applicant.