Improvements in Roller Bearings for Shafts, Axles and the like.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Roller Bearings for Shafts, Axles and the like.
We, WILLIAM HUGH WOODCOCK, of 25, Auckland Hill, West Norwood, in the
County of Surrey, Civil Engineer, and THOMAS COOPER, of King's Lynn, in the
County of Norfolk, Mechanical Engineer, do hereby declare the nature of this
invention to be as follows:-
-
Our invention relates to improvements in roller bearings for shafts, axles,
wheels and the like, and has for its object to minimise the friction arising in
such bearings, and at the same time to produce a bearing of simpler construction
than those hitherto employed, and our invention relates particularly to that class
of roller bearings in which what are known as frames, cages or cradles are used
for separating the rollers from contact with each other and also to keep them in
axial line with the axle journal or shaft. The most successful of such bearings
have hitherto been constructed with floating cages, that is, cages supported by
and moving with the rollers in such a manner that no portion of the cage touches
or bears on the axle, journal or shaft, or on the casing thereof, such cages con-
sisting of end rings or discs connected together by spokes or bars between each
pair of which spokes a roller is placed, the rollers supporting the cage or cradle
and keeping it out of contact with the axle, journal or shaft, or the casing thereof.
In our invention we provide a frame, cage or cradle for spacing the rollers and
keeping them in axial line with the axle, shaft or journal, but this frame, cage
or cradle instead of being supported upon the rollers (as are the floating cages
above referred to) is carried by the axle, shaft or journal, or the casing thereof,
as the case may be, and not by the rollers.
The spokes or bars of the frame, cage or cradle as well as the end discs thereof
can be arranged to bear upon the axle, shaft or journal, or upon the casing if so
desired, or the end dises only, or the spokes only can be made so to bear. The
spokes or bars of the frame, cage or cradle are so spaced that although the rollers
can he placed between them, there is not sufficient clearance to allow of the rollers
to get out of their true axial position.
The frame, cage or cradle in our invention is thus subject to less strain and as
there are no bearing surfaces to be provided for the rollers, it can be manufactured
at very low cost.
When the shaft revolves in a fixed bearing it is preferable to support the frame,
cage or cradle by the axle, shaft or journal, and on the other hand, when the
bearing revolves upon a fixed axle or shaft. it is preferable to support the frame,
cage or cradle upon the inner surface of the casing of the bearing.
Dated this 24th day of February 1898
JOHN P. O'DONNELL, Fel.Chart.Inst. P.A.,
Agent for the said Applicant,
70 and 71; Palace Chambers, Westminster, S.W.

page_text: Improvements in Roller Bearings for Shafts, Axles and the like.
We, WILLIAM HUGH WOODCOCK, of 25, Auckland Hill, West Norwood, in the
County of Surrey, Civil Engineer, and THOMAS COOPER, of King's Lynn, in the
County of Norfolk, Mechanical 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:-
Our invention relates to improvements in roller bearings for shaft, axles,
wheels and the like, and has for its object to minimise the friction arising in
such bearings, and at the same time to produce a bearing of simpler construction
than those hitherto employed, and our invention relates particularly to that class
of roller bearings in which what are known as frames, cages or cradles are used
for separating the rollers from contact with each other and also to keep them in
axial line with the axle journal or shaft. The most successful of such bearings
have hitherto been constructed with floating cages, that is, cage supported by
and moving with the rollers in such a manner that no portion of the cage touches
or bears on the axle or shaft, or on the casing thereof, such cages con-
sisting of end rings or discs connected together by spokes or bars between each
pair of which spokes a roller is placed, the rollers supporting the cage or cradle
and keeping it out of contact with the axle, journal or shaft, or the casing thereof.
In our invention we provide a frame, cage or cradle for spacing the rollers and
keeping them in axial line with the axle, shaft or journal, but this frame, cage
or cradle instead of being supported upon the rollers (as are the floating cages
above referred to) is carried by or bears on the axle, shaft or journal, or the
casing thereof, as the case may be, and not on the rollers.
We carry out our invention in the following manner reference being made to
the accompanying drawings in which:
Figure 1 illustrates a sectional side elevation of a bearing comprising our
improvements. In this case the end discs or rings of the frame, cage or cradle,
are shown as supported by or bearing on the axle or journal. Figure 2 is a cross
sectional elevation of same.
The same letters refer to the same parts in the different figures.
a is the casing of the bearing, 6 the axle, journal (or shaft) and c c¹ the end
discs or rings of the cage, frame or cradle employed for spacing or separating the
anti-friction rollers d, e being the spokes or bars connecting the said end discs
or rings c, c¹ between which spokes the anti-friction rollers & are placed.
Although we have shown in the illustrations the end discs or rings c, c¹ of the
cage, frame or cradle, for spacing the anti-friction rollers d, only as bearing on
the axle journal or shaft yet the spokes or bars e connecting said end discs or
rings c, c may also bear thereon; or both the end discs, c, c¹ and the spokes & of
the cage frame, or cradle, (or the end disc only or spokes only) may bear on the
casing of the bearing, or axle box, instead of on the axle, journal or shaft. The
spokes or bars d of the frame, cage or cradle, are so spaced that although the
rollers can be placed between them yet there is not sufficient clearance to allow
of the rollers getting out of their true axial position.
The frame, cage or cradle in our invention is thus subject to less strain and as
there are no bearing surfaces to be provided for the rollers, it can be manufactured
at very low cost.
When the shaft revolves in a fixed bearing it is preferable to support the frame,
cage or cradle by the axle, journal or shaft and on the other hand, when the

page_text: bearing revolves upon a fixed axle or shaft, it is preferable to support the frame,
cage or cradle upon the inner surface of the casing of the bearing.
The herein mentioned frame, cage or cradle for spacing the rollers d may be
formed in one or more pieces as desired.
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. In roller bearings the combination, with the axle journal or shaft and the
casing of the bearing or axle box, of a cage, frame or cradle with rollers running
between and on the spokes or bars of said cradle the end discs or rings (or the end
discs or rings and spokes or bars, or the spokes or bars only) of said cage, frame
or cradle bearing on or being supported by the axle journal or shaft or by the
axle box or casing of the bearing, substantially as and for the purposes herein
set forth.
قييم
1
1000
JOHN P. O'DONNELL, Fel.Chart.Inst.P.A.,
Agent for the Applicants,
70 and 71, Palace Chambers, Westminster, S.W.