Improvements in the Lubrication of Bearings and Filtering of the Lubricant During its Action.
Year: 1893

page_text: Date of Application, 22nd July, 1893
Complete Specification Left, 21st Apr., 1894-Accepted, 25th May, 1894
NOVIDIUNAL DIFICATION.
Improvements in the Lubrication of Bearings and Filtering of the
Lubricant During its Action.
SIDNEY STRAKER 139 Cannon Street London E.C. Civil Engineer do hereby
declare the nature of this invention to be as follows:-
The object of my invention is to provide an efficient and continuous system of
circulating oil automatically in and around a journal or spindle and bearing. To
effect this I make such modification in the construction of any bearing, pedestal
fitted with ordinary brasses as shall enable me to adopt my system of continuous
lubrication.
Upon the ends of a bearing pedestal I attach oil-catcher cups which may form
a portion of the pedestal casting or be detachable at will.
Through the base of the said pedestal by means of a hole drilled or coned parallel
to the axes of the bearing block, I connect the two oil catchers and thus provide a
channel for continuous circulation.
Projecting inwards and inside one of the said catchers I provide a small lip or
cup at the greatest elevation that the catcher will admit of, which is placed in such
a manner as to catch and retain any lubricant which may be flung off tangentially
from a disc or flyer rotating on a spindle working in the said pedestal.
The said flyer is permanently affixed to the said spindle and arranged centrally
inside the said oil catcher clear of the projecting lip.
From the said lip or oil cup the oil flows through an orifice into an oil box cast
on top of the bearing or pedestal and in which box a wire gauze strainer or other
form of filter is placed. Attached to the top of the said oil box is a detachable lid
which may be opened and closed at will to enable the oil strainer to be cleaned of
any residue collecting from the lubricant.
The operation in working is as follows:-
Oil is poured into the said oil box until sufficient is circulated as to fall to the
bottom of the said oil catchers, when assuming the spindle is set in motion the disc
flys the oil into the said oil cup or lip, the lubricant passing through the orifice
into the strainer through which it percolates and feeds the bearing, returning into
the catchers for recirculation.
If thought necessary the oil flyer may be arranged in the centre of bearing, with
other suitable construction or various design of pedestal for the application of my
invention.
1000
SIDNEY STRAKER.
COMPLETE SPECIFICATION.
Improvements in the Lubrication of Bearings and Filtering of the
Lubricant During its Action.
1, SIDNEY STRAKER, of 139, Caunon Street, in the City of London, Civil
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 :-
My invention relates to bearings for journals and has for its object to provide
improved means for maintaining the continuous lubrication of the same, and the
filtering of the lubricant during the working.

page_text: In carrying out my invention I apply to a machine pedestal or bearing-block,
adjacent to the two sides of the bearing, oil-cups or catchers, which are connected
at their lower parts so that the oil may flow from one to the other, and upon the
cap or cover of the block I form an oil-box in which is placed a strainer of wire-
gauze or other suitable material, the said chamber being normally closed by a lid.
Upon the shaft working in the bearing I fix a disc which is advantageously milled
on its periphery rotating in one of the said oil-catchers in such a manner that it
will lift the oil and throw it by centrifugal action on to a lip or partition whence
it will flow into the oil-box hereinbefore referred to and thence on to the bearing.
To enable my invention to be fully understood I will describe the same by
reference to the accompanying drawings, in which :—
Figure 1 is a plan of a plummer-block having my improvements applied thereto,
the said block being provided with a split bush :
Figures 2 and 3 are sections on the lines 2-2 and 3-3 respectively of
Figure 1:
Figures 4 and 5 are elevations at right angles to each other of a disc which I
employ for lifting the oil:
Figures 6 and 7 are sectional views corresponding to Figures 2 and 3 illustrating
a modification.
a is the base of the pedestal or block, is the cap or cover thereof, and c is the
bush or brass forming the bearing to be lubricated.
d, d' are the oil-catchers upon the sides of the block and cover and enclosing the
ends of the brasses or bearing; these oil-catchers may be formed separately from
the block and attached thereto, or may be cast therewith. As shewn in the
drawings the catcher d is represented as being attached to the cap and base of the
block by screws, whilst the catcher d¹ is represented as being cast with the block.
e, Figures 1 to 3, is the passage formed through the block and serving to connect
the two catchers d, d'. f is the oil-box formed upon the cap b, and g is the lid of
The said oil-box communicates with the upper part of the catcher d
through the passage and with the bearing to be lubricated through the passages i,
the strainer being placed between the passages h, i so that the oil which flows
through the passage is filtered before it passes to the bearing. This strainer can
be arranged either obliquely or in any other position provided the oil can flow
therethrough.
the same.
In cases where the plummer-block is of sufficient height, I sometimes enlarge the
passage e so as to form an oil reservoir e¹ in the lower part thereof, as shewn in
Figures 6 and 7, for the precipitation of the solid matters contained in the oil, a
dip partition e' being arranged as shewn whereby the oil from the catcher d' is
caused to descend to the bottom of the reservoir before reaching the catcher d.
k is the lip or partition formed across the upper part of the catcher d, and is the
disc or wheel which when the shaft is rotating lifts the oil and throws if off by
centrifugal action in the direction of the arrows m, Figures 3 and 7, so that it will
fall on to the said partition and thence flow into the chamber f, whence, after
passing through the strainer j, the lubricant flows into the bearing and thence
works through into the catchers d, d' to be again raised, the oil in the block shewn
in Figures 6 and 7 first precipitating any metallic and solid matter that may have
got into it.
The disc as shewn in Figures 2 and 3 and in Figures 4 and 5 is advantageously
milled on its periphery and may be of any width, that shewn in the latter two
figures being of a slightly different form to that shewn in Figures 2 and 3.
As in plummer-blocks having split bushes it is necessary to lower the cap and
top brass of the bearing as the said brass wears, I provide in the block shewn in
Figures 1 to 3 slots d², d² in the catcher d, through which slots the screws d³, d³
for fastening the said catcher to the cap & are placed from the outside thus
enabling the said cap to be lowered without affecting the said catcher which is
permanently screwed and fixed to the base a by the screw d' as shewn.
I sometimes as shewn in Figures 6 and 7 provide one central screw d³ only for

page_text: fixing the catcher d to the cap b, in which case the slot d' is formed in the end of
the oil-box fand the said screw is screwed from the inside of the said oil-box into.
the end cap. In cases where the shaft does not pass beyond the bearing as in
Figures 1 to 3, I make the catcher d to cover the end of the shaft whereby dust is.
prevented from entering the bearing.
In order that the oil shall not escape between the casing d and the shaft in cases
where the said shaft runs through the said casing as in Figures 6 and 7, I attach
or form an external lip n outside the casing and the opening through which the
shaft passes so that any oil which may drain from the said opening will run into
the lip and return for recirculation. The said lip also forms a filling opening and
acts as an oil level gauge.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a lubricating bearing, the combination of oil-catchers at the sides of the
same, the said oil-catchers being connected by a channel; a disc or wheel secured
to the shaft working in the bearing; a lip or partition on to which the oil raised
by the said disc will fall and a chamber into which the oil falling on to the lip or
partition will flow, the said chamber communicating with the bearing to be lubricated
substantially as described.
2. In a lubricating bearing of the kind described in the preceding claiming clause
the employment of a precipitating reservoir substantially as, and for the purpose,
described.
3. In a bearing adapted to be continuously lubricated by means of a disc or
wheel which lifts the oil and discharges it into a chamber upon the hearing, a
strainer for filtering the oil before it returns to the bearing, substantially as
described.
4. The combination with the bearing-block a and cap 6 of the oil-catchers d, d
connected by the passage e, the chamber f having the strainer j, the lip k and the
disc or bucket-wheel 1, substantially as described.
5. In a lubricating bearing of the kind herein described and in which a split
bush is employed, connecting the oil-catcher d to the cap of the bearing in such a
manner that the said cap can be adjusted to take up the wear of the brasses without
affecting the position of the said catcher, substantially as described.
6. In a lubricating bearing of the kind herein described the employment of the
disc milled on its periphery for lifting the oil hereinbefore described and illustrated
in Figures 4 and 5 of the accompanying drawings.
Dotad this 21st daw of A nuil 1901
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.