Improved Apparatus for Filtering and Collecting Oil from Lubricated Bearings and the like.
Year: 1898

page_text: Date of Application, 7th Dec., 1898-Accepted, 4th Feb., 1899
COMPLETE SPECIFICATION.
Improved Apparatus for Filtering and Collecting Oil from
Lubricated Bearings and the like.
I, SIGMUND SCHÖNFELD, of VI Terez Körut, 29, Budapest, in the Kingdom of
Hungary, Agent, 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 object of the present invention consists of an oil filter, which can be fixed
to the drip-trays of the bearing and which will filter the used and impure oil
collected in the drip-tray, and will allow the same to flow into a collecting vessel
temporarily attached to the filter, from which the oil can from time to time be
removed for the purpose of being used over again.
As a suitable collecting vessel there may be conveniently used the glass recep-
tacle of the ordinary automatic oiler, which receptacle can be again used as an
oiler at any time, by simply exchanging the empty oiler with the collecting vessel
and vice versa. By these means I obtain the result that the lubricating oil is
practically subjected to a cycle of purification and can be used over again, with-
out having the disadvantages found in filtering large quantities of oil.
In the accompanying drawing is illustrated a constructional form of my in-
vention in which a glass receptacle of an automatic oiler is used as the collecting
vessel for the oil passing through the filter.
Fig. 1 shews a vertical section of the filter with the collecting vessel attached
thereto,
Fig. 2 shews the application of this filter to an ordinary hanging bearing.
As may be seen from Fig. 1 the filter A is constructed in the form of a cone
with its apex downwards, and having connected to the part al in any suitable
manner (as, for instance, by a screw or bayonet catch or the like) the part aª
provided with the tubular threaded connecting piece a³ and the flange a. The
part a³ serves to attach the filter to the oil catchers of cast iron or the like usually
employed, and the last named part a serves when it is requisite to secure the
apparatus by soldering or the like to oil catchers of tin plate.
In the interior of the cone a¹ are arranged two perforated sieve plates, between
which the filtering material as, for instance, the usual cotton wick or a fabric,
or cellulose or the like are placed. Through the apertures of the lower perforated
plate are drawn loosely twisted threads, and at the centre of the plate there is,
as in the self-oilers, a metal pin passing downwards, which assures the regular
drip of the oil which has passed through the filtering material and the perforated
plates. The vessel B serving to collect the filtered oil can be attached to the
filtering cone in any desired manner. If the glass vessel of a self-oiler is used
as the collecting vessel, it is most convenient to have a spring clip 6 on the filter
which can be pressed together so as to enable the glass vessel to be passed over
it, but which would in the interior of the vessel again resume its original form,
and thereby sustains the vessel.
As may be seen from Fig. 2, the oil passes in this apparatus from the lubri-

page_text: cators fixed in the upper bearings into the shaft bearing C. From this the oil
passes into the collector D) and finally flows through the filter A into the vessel B
underneath which serves as a collecting vessel. As soon as the oil has been
used out of the vessel B', the vessel B is removed (the slight resistance of the
spring being easily overcome) and is then put in the place of the vessel B',
whilst this latter takes its place as collecting vessel under the bearing.
It will be seen that this device requires no expensive apparatus, whilst it
secures a considerable saving in oil and labour.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is:
1. Improved oil filter with direct oil supply from the bearing, characterised
by the combination of a filtering vessel such as A suitably connected to the oil
catcher D of the bearing, said vessel A being provided in its interior with suit-
able filtering devices preferably constructed of two detachable parts a¹ and 2
joined together, and delivering the filtered oil into a collecting vessel such as B
substantially as described and shewn in Fig. 1 of the accompanying drawing.
2. A constructional modification of the oil filter set forth in Claim 1 in which
the filtered oil is collected directly in the collecting vessel B or B¹ respectively
of the lubricator of the bearing C substantially as described and shewn in Fig. 2
of the accompanying drawing.
Dated the 7th dov
1000
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicant.