Improvements in and connected with the Lubrication of Bearings.
Year: 1894

page_text: Date of Application, 13th Aug., 1894
Complete Specification Left. 11th May, 1895-Accepted, 15th June, 1895
PROVISIONAL SPECIFICATION.
Improvements in and connected with the Lubrication of Bearings.
I, SIDNEY STRAKER, of 139, Cannon Street, in the City of London, Civil
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements on my former Patent No. 14161 of 1893,
the present improvements having mainly for object to prevent the oil from creeping
along the shaft and leaking at the oil flyer end of the bearing.
For this purpose I make the chamber or casing in which the oil disc or flyer
rotates of the same width as the flyer (allowing only for working clearance) so as
It also
to make a joint and thus prevent the oil from leaking or getting out.
prevents there being any end play in the working of the shaft as the same is
accordingly collared up tight. In cases where, as with electrical machinery, it is
indispensable that the spindle or shaft should have end play I fix the oil flyer on
the shaft with a loose key or feather only; the key-way is not through the entire
width of the flyer so that the function of inaking an oil joint is retained.
This device is found in practice to answer the requirements and the joint between
the flyer is retained whereas admission of end play exists.
In some cases I find it advantageous to employ a cam-shaped or eccentrically
placed oil thrower instead of a concentric one as described in the Specification of
my said former Patent.
In the case of large shafts I prefer to construct the oil-flyer in the ordinary
width or allowing clearance in the casing for any end play that may be deemed
advisable. The casing at the end of the bearing is made in three separate divisions.
The first and nearest to the brasses being for the oil-flyer with the catcher lip.
The second division is one beyond and has for object to retain a brass collar which
1 term the joint chamber or casing, and the third is a receptacle for arresting any
waste oil that may pass the joint chamber, the said oil being slung off by a groove
or projecting edge on the shaft.
These several chambers are connected with the main reservoir and any oil that
gets into them immediately returns into the oil reservoir.
The joint chamber is faced on its inner sides between which I fit a brass collar of
the same width and bored the size of the shaft which passes through it. The collar
does not rotate with the shaft but is held stationary by a feather or pin projecting
from either side of the faced casing. This admits of the collar descending as the
shaft wears in its brasses.
To prevent the bearing being overfilled, I cast a small projecting lip on the
5 outside of the pedestal; the top of which lip is on the same level as the oil should
occupy in the pedestal when in working condition. This lip also serves for filling
the bearing.

page_text: I, SIDNEY STRAKER, of 139, Cannon 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 :-
This invention relates to improvements on my former Patent No. 14161 of 1893,
the present improvements having mainly for object to prevent the oil from creeping
along the shaft and leaking at the oil flyer end of the hearing.
For this purpose I make the chamber or casing in which the oil disc or flyer
rotates of the same width as the flyer (allowing only for working clearance) so as
to make a joint and thus prevent the oil from leaking or getting out. This also
prevents there being any end play in the working of the shaft as it is collared up
tight. In cases where, as with electrical machinery, it is indispensable that the
spindle or shaft should have end play I advantageously mount the oil flyer on the
shaft with a loose key or feather the key-way extending only partially through
the flyer so that the making of an oil joint by the latter is not interfered with.
In some cases I find it advantageous to employ a cam-shaped or eccentrically
placed oil flyer instead of a concentric one as described in the Specification of my
said former Patent.
In the case of large shafts I prefer to construct the oil flyer of the ordinary
width, allowing clearance in the casing for any end play that may be deemed
advisable. In this case the casing at the end of the bearing is made with three
separate chambers. The first and nearest chamber to the brasses is for the oil
flyer with the catcher lip, the second chamber, which I term the joint chamber or
casing, is to retain a brass collar and the third chamber is a receptacle for arresting
any waste oil that may pass the joint chamber, the said oil being slung off by a
groove or projecting edge on the shaft.
These several chambers are connected with the main reservoir and any oil that
gets into them eventually returns into the reservoir.
The joint chamber is faced on its inner sides and a brass collar of the same width
as the chamber and bored the size of the shaft which passes through it is fitted
between the said sides. The collar does not rotate with the shaft but is held
stationary by a feather or pin projecting from either side of the faced casing and
entering a slot which admits of the collar descending as the shaft wears in its
brasses.
To prevent the bearing being overfilled, I cast a small projecting lip or cup on
the outside of the pedestal, the top of which lip is on the same level as the oil
should occupy in the pedestal. This lip also serves for filling the bearing.
To enable my invention to be fully understood I will describe the same by
reference to the accompanying drawing, in which :-
Figure 1 is a longitudinal section of a part of a plummer block constructed
according to my invention; and,
Figures 2 and 3 are similar sections illustrating the modifications of my
invention :
Figure 4 is a section on the line 4-4, Figure 2.
Similar letters of reference indicate corresponding parts in the several figures.
a is the base or pedestal of the block, b is the cap or cover thereof, and c is the
brass forming the bearing to be lubricated.
d, d' are the oil catchers on the sides of the plummer block, e is the flyer, and
fis the projecting edge of the shaft contained in a chamber g outside the oil
catcher dh, ' are the passages through which the chambers communicate with
the oil reservoir.

page_text: In the arrangement shown in Figure 1 the flyer e is made to fit between the faced
sides of the chamber d' so as to form a joint to prevent the escape of oil.
As shewn in Figure 2 the flyer is made of the ordinary width, that is to say, of
less width than the chamber in which it rotates thereby allowing clearance for end
play. In this case the casing at the end of the bearing is made with an extra
chamber i between the chambers d', and g, the said chamber i containing the brass
collar through which the shaft passes, but which is held stationary by the
feather k which projects from the same and works in a slot in one side of the
casing to allow of the collar descending when the shaft wears in its brasses.
In Figure 3, which shews another modification in which the shaft has end play,
the flyer
is not keyed to the shaft but is attached thereto by a loose key or
feather m which slides in a key-way n in the flyer. This key-way n does not
extend entirely through the flyer so that oil cannot pass through the same.
o is the lip or cup on the outside of the pedestal to prevent the bearing being
overfilled with oil, the top of the lip being on the same level as the oil should occupy
in the pedestal when the latter is in working condition.
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 provided with a flyer rotating in a chamber at the
side, arranging the said flyer to fit between the faced sides of the said chamber and
providing an additional chamber such as 9 connected to the oil reservoir by a passage
and having within it a projecting edge or groove upon or in the shaft substantially
as, and for the purpose, described.
2. In a lubricating bearing of the kind described in Claim 1, attaching the flyer
loosely to the shaft by means of a feather on the shaft sliding in a slot in the said
flyer to allow of the shaft having end play, substantially as described.
3. In a lubricating bearing of the kind described in Claim 1 the combination
with chambers such as d¹ and g of an intermediate chamber such as i containing a
collar through which passes the shaft, the said collar being held stationary by a
pin which works in a slot in one side of its chamber substantially as, and for the
purpose, described.
4. The manufacture and use of lubricating bearings substantially as herein before
described and illustrated in the accompanying drawing.
Dated this 11th day of May 1895
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.