Improvements in Ball or Roller Bearings.
Year: 1894

page_text: Date of Application, 9th Mar., 1894
Complete Specification Left. 10th Dec. 1894-Accented. 19th Jan. 1895
Date of Application, 9th Mar., 1894
Complete Specification Left. 10th Dec. 1894-Accented. 19th Jan. 1895
PROVISIONAL SPECIFICATION.
Improvements in Ball or Roller Bearings.
We, LIONEL MADDISON, of 2 Harcourt Buildings, Temple in the County of
London, Barrister-at-Law, and CHARLES TYRINGHAM PRAED, of Edgecombe
Hall, Wimbledon Park, in the County of Surrey, Banker, do hereby declare the
nature of this invention to be as follows:-
This invention relates to ball or roller bearings, and has for its object to further
improve ball-bearings of the kind or class described in the Specifications of prior
British Letters Patent numbered as follows, that is to say, No. 20508, No. 5433º¹;
No. 217971 and No. 13483°³.
In the beforementioned Specifications there are described ball bearings wherein
one or more series of balls rolling in contact with concentric bearing surfaces are
provided to resist radial pressure, and one or more other series of balls rolling in
contact with flat surfaces are provided to resist end pressure or thrust.
In some
instances the balls are contained in suitable cages and can be taken out of the
bearing and re-inserted in a body.
It is desirable under some circumstances that cylindrical rollers be used for
sustaining the radial pressure in lieu of spherical rollers or balls, as for example in
cases where the weight to be borne is excessive and necessitates more bearing
surface. The cylindrical rollers may be formed with a slight point or projection on
their axes at each end and the cage so arranged that the said point rests lightly
upon a corresponding depression or aperture in the ends of the said cage. This
arrangement tends to keep the said rollers in the required position.
According to the present invention therefore we employ cylindrical rollers for
sustaining the radial pressure or weight, in combination with spherical rollers or
balls for taking the end pressure or thrust. Said rollers and balls are contained
in suitable cages such for example as the one described in Specification 2050890 and
shown in Figure 17 or in other suitable cages so as to be removable in a body.
All the bearing surfaces are preferably treated in the manner described in the
before mentioned Specification No. 134833 to convert and harden the same.
Dated this 9th day of March 1894.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.
Improvements in Dall OF ROO
We, LIONEL MADDISON, of 2 Harcourt Buildings, Temple Barrister-at-Law,
and CHARLES TYRINGHAM PRAED, of Edgecombe Hall, Wimbledon Park, in the
County of Surrey, Banker, 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 ball or roller bearings, and has for its object to further
improve bearings of the kind or class described in the Specifications of prior British

page_text: Letters Patent numbered as follows, that is to say, No. 20508, No. 5433";
No. 217971 and No. 1348393.
In the said Specifications there are described bearings wherein one or more series
of balls rolling in contact with concentric bearing surfaces are provided to resist
radial pressure, and one or more other series of balls rolling in contact with flat
surfaces are provided to resist end pressure or thrust. In some instances the balls
are contained in suitable cages and can be taken in a body out of the bearing and
re-inserted therein.
It is desirable under some circumstances (that is to say in cases where the weight
to be borne is excessive) to provide more bearing surface than is afforded by balls,
and according to the present invention therefore we employ cylindrical rollers for
sustaining the radial pressure or weight, in combination with spherical rollers or
balls for taking the end pressure or thrust. The said rollers and balls are contained
in suitable cages such for example as the one described in the Specification
No. 205080 and shown in Figures 17 to 21 or in other suitable cages so as to be
removable in a body.
In the accompanying drawing we have shown how our invention may be
conveniently and advantageously carried into practice.
Figure 1 is a central longitudinal section of the outer end of a carriage axle
bearing constructed according to our invention.
Figure 2 is a separate perspective view of the roller-containing cage and rollers
therein for sustaining the radial pressure or weight.
Figure 3 is a perspective view of the cage alone without the rollers, and with the
ring hereinafter referred to removed.
Figure 4 is a perspective view of the said ring.
Figure 5 is a side elevation of one of the rollers.
Like letters of reference denote corresponding parts in the several figures.
A is the axle, B is the axle-box, C is a sleeve mounted on the axle. D, D are
the balls for taking the end thrusts. E, E are cylindrical rollers for supporting the
radial pressure or weight.
The balls D for taking the end thrusts are mounted as heretofore, and the
arrangements connected therewith form no part of the present invention.
The rollers E, E are contained in a cage F, see Figure 3, which consists of an
annulus having a number of cylindrical cavities fextending, parallel with the axis,
from one end of the annulus to within a short distance of the other end thereof.
A recess is formed in the end of the annulus to receive a ring G which can be
secured in the said recess by turning inward the projecting ends f2 of the cage so
as to embrace the ring. Or the ring may be secured by screwing or in any other
suitable manner. Previously to fastening the said ring in place we insert the
rollers E into the cavities of the cage and we then close the ends of said cavities
by placing the ring G in the recess f¹ and securing it therein as above described.
The rollers are thus prevented from leaving the cage while at the same time they
have a slight amount of freedom both in the axial and lateral direction. The
rollers project slightly from the annular cage both externally and internally and
roll in contact with the bearing surfaces of the axle box and sleeve when the cage
is inserted in the bearing.
The rollers E may be formed with conical or pointed ends as shown in Figure 5
to bear lightly in corresponding conical depressions formed in the cage at the
end of the cavities fand in the inner face of the ring G. The cage with its
contained rollers can be removed from the bearing in a body and replaced therein
when desired.
All the bearing surfaces are preferably treated in the manner described in the
hereinbefore mentioned Specification No. 134833 to convert and harden the same to
a sufficient depth. By the term bearing surfaces we mean to include the surfaces of
the rollers and balls as well as those of the sleeve and axle box against which the
'balls roll.

page_text: Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :
1. In a bearing, the combination with balls that roll in contact with flat surfaces
and resist end thrusts, of cylindrical rollers that roll in contact with concentric.
cylindrical surfaces and support radial pressure or weight, said rollers being
contained in cages so as to be removable in a body, substantially as described.
2. A. ball and roller bearing constructed substantially as described with reference
to the accompanying drawings.
Dated this 10th day of December.1894.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.