Improvements in Roller Bearings.
Year: 1898

page_text: Date of Application, 10th Feb., 1898-Accepted, 24th Sept., 1898
COMPLETE SPECIFICATION.
Improvements in Roller Bearings. -
I, FRANK MOSSBERG, of 101, Sabin Street, Providence, Rhode Island, United
States of America, Manufacturer, 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 roller bearings and is designed for all situations where
there is a thrust in two directions, that is, longitudinally and laterally.
My invention consists of a hollow cage of conical form with a series of tapering
rollers contained within the shell or wall of the cage, in openings formed therein,
the peripheries of the rollers protruding beyond the wall of the cage so as to form
a bearing on both sides, the cage practically floating between the bearing surfaces
in contact with the rollers, the rollers being simply retained in place and kept
spaced apart by the cage. By making the cage of conical form the bearings are
properly centered and the rollers not only take up the longitudinal thrust but
also the radial or lateral thrust.
The invention as applied to a wheel hub is illustrated in Figure 1 which is a
central longitudinal section through a hub showing the rollers in place.
In this drawing A represents the vehicle hub containing the lining sleeve B
which has a tapered or flaring portion at B to receive one of the conical cages
and its bearing rings. At the other end the sleeve B is threaded to engage with
a tapered sleeve C which receives the other conical cage and its bearing rings.
These bearing rings D and D' are inclined to the axle so as to provide bearing
surfaces for the rollers, which are also set inclined. The axle E has an enlarged
portion E' forming a seat for a bearing ring F having its outer face inclined. The
end of the axle is threaded at e, and carries the adjustable bearing ring F¹ bearing
the same relation to the ring D' as ring F does to the ring D. The ring F¹ may be
adjusted by screwing it in or out upon the end of the axle, and is held in its
adjusted position by a washer and lock nut threaded upon the reduced and
extended end of the axle.
Bearing rollers G are located between the opposing faces of the bearing rings D,
F and D, F respectively, and in order to hold these rollers, they are carried in a
rigid cage H of conical form. The cage is of truncated cone shape and is pro-
vided with a plurality of elongated openings forming pockets in which the rollers
are located, being inserted from the larger end and held in place by a plate or
ring & secured to the end of the cage in any suitable manner. The portion of the
cage which carries the rollers is of less thickness than the diameter of the rollers
so that when the cage is in place between the two bearing rings the rollers will
extend through the lateral openings in the walls of the cage and contact with the
bearing rings. As shown in Figures 5 and 6 the rollers are held by the concave
shape of the intermediate webs i, the peripheries of the rollers extending through
the openings and beyond the periphery of the cage.
The ends of the rollers are
rounded to bear against the plate or ring k.
At its smaller end the cage is provided with an inwardly extending flange h

page_text: which overhangs the edge of the bearing F or F1, Figure 1, and bears against the
axle while at its larger end it is provided with a corresponding flange h³ over-
hanging the diagonally opposite edge of the corresponding bearing ring D or D¹.
The cage is confined in position in the hub by a locking washer I or I¹ threaded
into the sleeve carrying the outer bearing rings, and in addition suitable dust
excluding caps are preferably employed.
It will thus be observed that the rollers are held to their work between the bear-
ing rings by rigid conical shaped cages, and thus it is impossible for the rollers
to crowd each other and these cages with the rollers carried thereby serve to resist
longitudinal and lateral strain perfectly.
The invention as shown in Figures 2 and 3 is adapted to be used with vertical
or longitudinal shafts or spindles where it is desirable to reduce the friction and
particularly where there is longitudinal as well as lateral strain.
In Figure 2 a block A is formed with a recess in its upper face having a plain
bottom and inclined walls and fitted to this recess is one of the conical cages H
made hollow and having its walls inclined and provided with a series of recesses
made tapering as described and fitted to these recesses are like rollers G.
Between the cage and the inclined walls of the recess in the block A is a bearing
ring and upon this ring the outer peripheries of the rollers rest and find a
bearing. The rollers support a ring 3 which has a conical outer face adapted to
rest upon the rollers and this ring in turn supports a shaft B2 which, as shown in
Figure 2 is stepped in the ring 3. The cage and its bearing rings are held in
place within the recessed block A, by means of a cap plate 5 closing the opening
to the recess and fitting snugly around the periphery of the shaft B².
In Figure 3 the same construction is shown, but in this form the projecting
end 2 of the shaft B2 extends through the cage and through an opening in the
block A³.
The rollers are self contained within the conical cages and may be lifted out
with it.
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-A roller bearing comprising a hollow conical rotating cage and a series of
tapering rollers fitted to openings in the walls thereof, said rollers protruding on
each side of said wall whereby a bearing is provided adapted to resist the thrust
of the bearing surfaces both longitudinally and laterally, substantially as described.
2-In combination with an axle and hub, a rotating cage surrounding the axle
and disposed between it and the hub, said cage having inclined walls slotted to
receive and support a series of rollers, and bearing rings on the axle and hub for
the rollers, whereby the rollers are kept to their work and are adapted to receive
both the end and lateral thrust of the axle and hub, substantially as described.
Dated this 10th day of February 1898.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., Agents.