Improvements in Roller Bearings.
Year: 1897

page_text: Date of Application, 13th Apr., 1897
Complete Specification Left, 13th Jan., 1898-Accepted, 19th Feb., 1898
Improvements in Roller Bearings.
I, WILLIAM HUGH WOODCOCK, of 25, Auckland Hill, West Norwood, in the
County of Surrey, Civil Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention has reference to improvements in roller bearings having for
object to diminish friction between revolving journals or shafts and their bearings
and also between wheels and pulleys revolving on fixed journals or shafts.
My invention consists in a novel form of cage or cradle for spacing the rollers
and keeping them parallel, said cage being formed in one piece, and preferably
so devised that the rollers are inserted between the spokes or bars of the cradle from
the ends thereof by slipping them in between said spokes in a lateral direction,
although if desired it may be so devised that they may be dropped in from the
outside of the cradle in a radial direction, before the cradle is placed in the casing
of the bearing, and on being so placed the rollers and cradle are retained in thei
proper positions; or as an alternative the cradle may be constructed so that the
rollers can be inserted from the inside of the cradle, in which alternative the rollers
and cradle are retained in their proper relative positions after the shaft is inserted.
Lateral movement of the cradle and rollers in the casing is prevented by projecting
circular ribs formed on the inner surfaces of the ends of the casing.
The way in which I carry out my invention is as follows:-
I construct a cage of suitable metal, in one piece, for any even number of rollers,
each pair of bars or spokes of said cage or cradle, between which the anti-
friction rollers are placed, being connected together only at one end the connection
between the pairs of spokes or bars being at alternatively opposite ends, that is
to say, for example, the right hand ends of one pair of spokes would be formed
solid with or connected together by a connecting piece, the left hand ends of the
next pair of spokes being similarly connected, and so on.
Bearing surfaces for the antifriction rollers are formed on the spokes or bars of
the cradle at each end and projections are formed on the inner surface of the end
connecting piece of each pair of spokes as bearings for the ends of said rollers.
Projecting circular ribs are formed on the inner surfaces of the ends of the casing
as bearing surfaces for the ends of the cradle and rollers, taking up lateral move-
ment of the cradle and rollers in the casing.
The main object of constructing a cradle or cage according to my invention, as.
above described, is to facilitate the machining of the surfaces on the spokes or bars
upon which the antifriction rollers bear, said surfaces being simply bored out by
an ordinary boring bar instead of being milled. My improved cage also gives
increased bearing surface for the antifriction rollers on the interior of the casing
said rollers beaing on the full width thereof.
10 L
A 1907
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.
I, WILLIAM HUGH WOODCOCK, of 25, Auckland Hill, West Norwood, in the
County of Surrey, 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 has reference to improvements in roller bearings having for
object. to diminish friction between revolving journals or shafts and their bearings
and also between wheels and pulleys revolving on fixed journals or shafts.
My invention consists in a novel form of cage or cradle for spacing the rollers
and keeping them parallel, said cage being formed in one piece, and preferably
so devised that the rollers are inserted between the spokes or bars of the cradle from
the ends thereof by slipping them in between said spokes in a lateral direction,
although if desired it may be so devised that they may be dropped in from the
outside of the cradle in a radial direction, before the cradle is placed in the casing
of the bearing, and on being so placed the rollers and cradle are retained in their
proper positions; or as an alternative the cradle may be constructed so that the
rollers can be inserted from the inside of the cradle, in which alternative the rollers
and cradie are retained in their proper relative positions after the shaft is inserted.
Lateral movement of the cradle and rollers in the casing is prevented by projecting
circular ribs formed on the inner surfaces of the ends of the casing.
The way in which I carry out my invention is as follows:-
I construct a cage of suitable metal, in one piece, for any even number of rollers,
each pair of bars or spokes of said cage or cradle, between which the anti-
triction rollers are placed, being connected together only at one end the connection
between the pairs of spokes or bars being at alternatively opposite ends, that is
to say, for example, the right hand ends of one pair of spokes would be formed
solid with or connected together by a connecting piece, the left hand ends of the
next pair of spokes being similarly connected, or in other words, taking as an
example a cage for eight rollers, and consequently having eight spokes, if the
connections between the pairs of spokes Nos. 1 and 2, 3 and 4, 5 and 6, 7 and 8,
were at the right hand end of the cage, the connections between the pairs of
spokes Nos. 1 and 8, 2 and 3, 4 and 5, 6 and 7 would then be at the left
hand end of the cage. Briefly an opening is left at alternatively opposite
ends of each two bars or spokes between which
a roller is placed.
Bearing surfaces for the anti-friction rollers are formed on the spokes or bars of
the cage at each end and projections are formed on the inner surface of the end
connecting piece of each pair of spokes as bearings for the ends of said rollers.
Projecting circular ribs are formed on the inner surfaces of the ends of the casing
as bearing surfaces for the ends of the cradle and rollers taking up lateral move-
ment of the cradle and rollers in the casing. This cage is preferably so devised
that the rollers are inserted between the spokes or bars of the cradle from each end
thereof by slipping them in between said spokes in a lateral direction, although if
desired it may be so devised that they may be dropped in between the spokes or bars
from the outside of the cradle or cage in a radial direction, before the cradle is
placed in the casing of the bearing but on being so placed the rollers and cradle
are retained in their proper positions; or, as an alternative, the cradle or cage may
be constructed so that the rollers can be inserted from the inside of the cradle, in
which alternative the rollers and cradle are retained in their proper relative positions
after the shaft is inserted.
In order. that my invention may be better understood and more readily carried

page_text: 0
nto effect I will describe it with reference to the accompanyang
which:-
Figure 1 is a cross section of a bearing comprising my improved form of cage
or cradle.
Figure 2 is, on the upper half, a longitudinal section and on the lower half an
elevation outside the casing.
Figure 3 is a side elevation of the cage without the rollers and removed from the
journal box or casing, and Figure 4 is an end view of same.
The same letters of reference indicate similar parts in the several figures of
the drawings.
a is the casing of the bearing, 6 is the journal box or shaft, c are the spokes or
bars of the cradle between which the rollers d are placed, said rollers bearing on
the interior of the casing a and on the journal or axle b, and at their ends on
f are the pieces con-
projecting bearing surfaces e formed on each spoke or bar c:
necting the spokes or bars of the cage said connections being at alternatively
opposite ends of the bars as clearly shown in Figure 3, forming as it were a zig-zag
cage. (Figures 2 and 3) are the projecting bearing surfaces formed on the outside
of the end connecting pieces f of the spokes or bars said surfaces bearing on corre-
sponding projecting circular ribs g¹ g² (see Figure 2) formed on the interior of
the casing a, one end of each roller d also bearing on ribs g¹ or g² as the case may
be; projecting surfaces or rubs may also be formed on the inner sides of the con-
necting pieces f as bearing surfaces for the ends of the rollers opposite to those
that bear on ribs g¹ or g².
The main object of constructing a cradle or cage according to my invention, as
above described, is to facilitate the machining of the surfaces on the spokes or bars
upon which the anti-friction rollers bear, said surfaces being simply bored out by
an ordinary boring bar instead of being milled. My improved cage also gives
increased bearing surface for the anti-friction rollers on the interior of the casing
said rollers bearing on the full width thereof.
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 of a cylindrical journal or shaft, (with
or without a sleeve fitted thereon), rollers running between and on the spokes or
5 bars of a cage formed in one piece with an even number of spokes or bars, each
spoke or bar of said cage being connected at one end only to the next spoke or bar
such connection being alternatively at opposite ends of the cage or cradle, substan-
tially as herein set forth for the purposes specified and as illustrated in Figures 1
to 4 of the drawings annexed.
10
2. A cage or cradle for roller bearings formed in one piece with an even number
of spokes or bars, each bar or spoke of said cage, between which and the next, an
anti-friction roller is placed, being connected to the next spoke or bar at one end
only, said connection being at alternatively opposite ends of the cage or cradle,
substantially as herein described, for the purposes specified, and as illustrated in
45 Figures 1 to 4 inclusive of the drawings annexed.
1000
JOHN P. O'DONNELL, Fel. Chart. Inst. P.A.,
Agent for the said Applicant,
70 and 71, Palace Chambers, Westminster, S.W.