Improvements iu of rela
Year: 1897

page_text: Improvements iu of rela
I, BENJAMIN SMITH of No. 12 Arthur Street Leicester in the County of Leicester
Traveller do hereby declare the nature of this invention to be as follows:-
This invention refers to improvements in or relating to oil filters and has for its
object the construction of an apparatus which is capable of filtering oil so that the
dirt is left in the upper portions of the vessel and delivered clean into a bottom
reservoir ready for use, the filtering media being asbestos fibre and asbestos cloth.
In carrying out my invention 1 employ a suitable metal or other cylindrical vessel
of the required height and dimensions, with a good fitting lid, and fit inside thereof,
to reach about half way down an inner cylinder, at the bottom of which, or forming
the bottom thereof is a strainer, or straining surface surmounting a funnel of the
desired shape and circumference of the cylinder, the neck of the funnel passing into
a cup shaped vessel, or secondary filtering chainber covered by a ring or plate of
asbestos cloth through which the already partly filtered oil works, and is again
cleansed before running over the sides of the cup or second filtering chamber into the
clean oil chamber or reservoir underneath, immediately above the funnel is placed a
bed of asbestos fibre of the desired thickness and of the circumference of the inner
cylinder, an ordinary tap is put in the outer cylinder near the bottom for drawing
off the clean oil.
1 100-
W. BESTWICK MAXFIELD,
Applicant's Agent.
I, BENJAMIN SMITH of No. 12 Arthur Street Leicester in the County of Leicester
Traveller 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 refers to improvements in or relating to oil filters and has for its
object the construction of an apparatus which is capable of filtering oil so that the
dirt is left in the upper portions of the vessel and delivered clean into a bottom
reservoir ready for use, the filtering media being asbestos fibre and asbestos cloth.
That my invention may be clearly understood I have annexed a sheet of drawings
which shows a sectional elevation of the apparatus forming the subject of this
invention.

page_text: In carrying out my invention I employ a suitable metal or other cylindrical vessel
A of the required height and dimensions having a good fitting lid a', and inside the
vessel to reach about half way down; the inner cylinder B at the bottom of which,
or forming the bottom thereof is a bed or layer of asbestos cloth C covering the
funnel D which is of any desired shape and of the circumference of the cylinder A,
the neck d¹ of the funnel passes into and is secured to the pipe d² by a union d³
which allows of it being taken off for cleaning, holes are made in the pipe d' and
the bottom thereof is soldered to the bottom of the cup E or secondary filtering
chamber, this is covered. by the ring, plate or layer of asbestos cloth e¹ through which
the already partly filtered oil works and is again cleansed before running over the
sides of the cup into the clean oil chamber of reservoir F, or bottom part of the
cylinder A. Immediately above the funnel D and level with the layer of asbestos
cloth C, is fitted the inner cylinder B in which is suspended the filtering box or
chamber G containing asbestos fibre g'; connected to the neck of the funnel H by
the union g³, the strainer I being placed therein or thereon, and upon which the dirty
oil is placed and passes down the funnel through the holes in the pipe g², and
through the straining surfaces ; these keep the fibre from clogging up or
stopping up the pipe 92. An ordinary tap J is put in the outer cylinder A near the
bottom for drawing off the clean oil. The asbestos filtering material e¹ may be
exchanged for flannel and the cup E filled with asbestos fibre if desired.
I do not confine myself to the shape of the cups or filtering chambers, or the
vessel generally for the first filtering box G may be arranged like the cup E and
similar in shape.
Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed I declare that what I claim is:
The combination in an oil filter of an inner cylinder, a strainer, funnel connected
to pipe of filtering box having therein asbestos fibre, a bed of asbestos cloth resting
upon the second funnel the neck of which is connected to pipe soldered to bottom of
a cup carrying a covering of asbestos cloth, or flannel and cup filled with asbestos
fibre, a clean oil chamber or reservoir formed of the lower portion of the outer
cylinder A, arranged in the manner substantially as described and with reference to
the accompanying drawing.