Improvements relating to Koller Bearings.
Year: 1899

page_text: Improvements relating to Koller Bearings.
We, HENRY PERCY HOLT, Engineer, and MoSSBERG ROLLER BEARINGS LIMITED,
of 6, Victoria Street, in the City of Westminster, Manufacturers, do hereby declare
the nature of this invention to be as follows:-
-
This invention relates to roller bearings, and has for its object to provide
bearing surfaces that are capable of adjustment in diameter, and in which the
possibility of deformation or buckling is obviated.
The invention consists in the provision of a bearing surface, from a strip of
metal of suitable section spirally coiled and also by the coiling of a tapered
strip of metal of suitable section in the manner and for the purposes hereinafter
explained.
În carrying the invention into effect we take a strip of bar steel, preferably of
square section, and while hot spirally coil it upon a mandrel, thus forming a
sleeve having a practically continuous interior and exterior surface. Such a
sleeve may or may not be turned in the lathe, and, after hardening may be
employed to form the inner surface of a roller bearing. By thus providing a
bearing surface or sleeve the possibility of deformation of buckling on temper-
ing, or on wear, is obviated. The surface or sleeve thus formed may, however,
be employed as the exterior surface of a bearing, and may, for example, be
applied upon a shaft as a bearing surface.
Or, we take a tapered steel bar and while hot similarly coil it upon a mandrel
to form a sleeve of any particular diameter, thus forming a tapered sleeve having
its interior cylindrical and its exterior tapered or conical. Such a sleeve may or
may not be turned in the lathe, and, after hardening, may be employed within
a bush or bracket of a bearing having a tapered recess corresponding to that of
the exterior of the sleeve provided in the bush or bracket, so that upon com-
pression in an axial direction the interior diameter of the sleeve may be de-
creased. This may be effected by such means as a nut screwed within the bush
or bracket or other suitable device which upon operation may effect the adjust-
ment of the sleeve to suit the rollers that may be employed and to take up any
wear that may have been occasioned. It is obvious that such a sleeve may be
employed to form the exterior bearing surface. For example such a sleeve may
be formed with its exterior surface cylindrical and its interior conical or tapered
and it may be caused to fit upon the spindle or shaft at a part formed of a corre-
ponding taper and a nut or other suitable means may be employed to adjust it
ongitudinally upon the spindle or shaft and thus to increase or adjust its exterior
liameter. Such an arrangement of tapered sleeve may also be employed for
ixing a sleeve upon a shaft.
Such bearing surfaces provided as herein before described are particularly
seful in roller bearings where rollers carried within floating cages are em-
loyed, but are obviously capable of general application to roller bearings.
It will be understood that the invention is not limited to any particular shape

page_text: or section of bar employed other than that necessary to secure a practically con-
tinuous bearing surface.
Dated this 21st day of September 1899.
We, HENRY PERCY HOLT, Engineer, and MOSSBERG ROLLER BEARINGS LIMITED,
both of 6, Victoria Street, in the 'City of Westminster, 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 roller bearings, and has for its object to provide
bearing surfaces that are capable of adjustment in diameter, and in which the
possibility of deformation or buckling is obviated.
The invention consists in the provision of a bearing surface, from a strip of
metal of suitable section spirally coiled and also by the coiling of a tapered
strip of metal of suitable section in the manner and for the purposes hereinafter
explained.
In the accompanying sheet of explanatory drawings,
Figure 1 is a sectional elevation of a roller bearing having our improved
adjustable sleeve arranged therein, and Figure 2 is a sectional end elevation of
the same. Figures 3 and 4 are similar views of one modification of our invention.
In carrying the invention into effect we take a strip of bar steel or other suit-
able metal, preferably of square section, and while hot spirally coil it upon a
mandrel, thus forming a sleeve having a practically continuous interior and
exterior surface. Such a sleeve may or may not be turned in the lathe, and,
after hardening may be employed to form the inner surface of a roller bearing.
By thus providing a bearing surface or sleeve the possibility of deformation or
buckling on tempering or on wear is obviated. The surface or sleeve thus formed
may, however, be employed as the exterior surface of a bearing, and may, for
example, be applied upon a shaft as a bearing surface.
Or we take a tapered steel bar as illustrated in Figures 1 and 2 and while
hot similarly coil it upon a mandrel to form a sleeve a of any particular diameter,
thus forming a tapered sleeve having its interior cylindrical and its exterior
tapered or conical. Such a sleeve may or may not be turned in the lathe, and,
after hardening, may be employed within a bush or bracket c of a bearing having
a tapered recess corresponding to that of the exterior b of the sleeve provided
in the bush or bracket so that upon compression in an axial direction the interior
diameter of the sleeve may be decreased. This may be effected by such means as
a nut e screwed within the bush or bracket or other suitable device which upon
operation may effect the adjustment of the sleeve to suit the rollers f that may
be employed and to take up any wear that may have been occasioned.
A sleeve may be formed with its exterior surface cylindrical and its interior
conical or tapered and it may be caused to fit upon the spindle or shaft at a
part formed of a corresponding taper and a nut or other suitable means may be
employed to adjust it longitudinally upon the spindle or shaft and thus to
increase or adjust its exterior diameter. An arrangement of tapered sleeve may
also be employed for carrying or fixing a roller liner or sleeve upon a shaft as

page_text: lustrated in Figs. 3 and 4 in which the liner g is caused to revolve with the
shaft and the adjustable bush a is secured between the shaft and the liner by
the nut e thus enabling a true exterior bearing surface to be formed when the
shaft itself is irregular or roughened upon its surface the yielding spiral nature
of the sleeve a following up any irregularity upon the surface of the shaft.
The rollers and cage are kept in position by means of a keep plate
to the bracket e by screws k.
attached
Such bearing surfaces provided as herein before described are particularly
useful in roller bearings where rollers carried within floating cages are em-
ployed, but are similarly capable of general application to ordinary roller bear-
ings.
It will be understood that the invention is not limited to any particular
shape or section of bar employed other than that necessary to secure a practically
continuous bearing surface.
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 roller bearing the arrangement of a tapered sleeve or bush formed
from a strip or bar of metal substantially as and for the purpose herein before
described and as illustrated in the accompanying drawings.
2. In roller bearings the combination therewith of a spirally wound metal bar
or strip for the purpose of forming a bearing surface substantially as herein-
before described.