Improvements in Anti-friction Journal Bearings.
Year: 1890

page_text: Date of Application, 19th June, 1890
Complete Specification Left, 16th Apr., 1891-Accepted. 23rd May, 1891
PROVISIONAL SPECIFICATION.
Improvements in Anti-friction Journal Bearings.
We, MARION ADELBERT ANDREWS and JAMES MILFORD ANDREWS, severally
of Syracuse, Onondaga County, New York, United States of America, Gentlemen,
do hereby declare the nature of this invention to be as follows :-
The invention relates to the construction of anti-friction journal bearings for
axles, shafts or arbors, and which are designed to reduce the friction.
The object is to produce an improved journal bearing of the anti-friction species
in which the axle is grooved near its outer end creating a head, and an inner
shoulder, in which a ring fits loosely over the axle and lies in the groove therein,
and upon the top thereof, in which anti-friction rollers support and steady the ring
travelling in a groove around the outer periphery of the ring, and also travelling in
a groove around the inner wall of the outer casing, said rollers being mounted upon
separate arbors mounted or secured in annular rings, and being held apart from cach
other by their arbors.
The bearing comprises a casing constructed in sections which together create an
inner circular wall within it, and between the back, and the front or cover, an endless
groove being cut in this wall, and a loose ring having a plain inner wall, and an
endless groove around its periphery.
Between this ring and the casing the friction rollers or wheels are placed their
peripheries being adapted to fit into and travel in the grooves in the casing and in
the loose ring.
These rollers are separately mounted upon arbors which are in turn mounted or
secured in annular rings equidistant and held apart from each other by the arbors
so that the rollers cannot rub against each other, as they rotate.
The peripheries of the rollers can be made flat, or can have the corners scarfed
off, more or less, or can be rounded, or the edges of the groove in the casing and
ring can be scarfed off or rounded more or less, as described in the latter instance,
the periphery of the roller can be flat, or have the corners slightly taken off.
The inner wall of the loose ring can be flat, to give a broad bearing upon the
axle, or can be grooved to produce the flanges and thus reduce the bearing upon
the axle.
The axle is provided with a groove of the same width of the ring, of the same
form, or it may have the corners scarfed off or rounded the same as the groove in
the casing and the ring thus fits in the groove, while the head bears against the
outer edge of the ring and the shoulder against the inner edge, and the head and
shoulder hold the axle against end thrust.
It will be understood that the whole face of the ring travels upon the axle, and
that the rollers travel in grooves in the ring and in the inner wall of the casing, and
that the rotation of the ring rotates the rollers so that they travel around on the
ring and casing while the ring travels around the axle, so that the frictional wear is
evenly distributed and reduced to the minimum.
The inner diameter of the ring should be large enough to enable the head to pass
freely through the same.
It will also be seen that the scarfing off of the edges of the grooves or rollers,
or both causes the rollers to better follow the grooves, especially in a car truck
upon a curve, when there is a great end thrust upon the axle, and that all clipping
off of the corners is avoided also the wear of the rollers upon the sides of the
grooves is reduced.
Dated this 19th day of June 1890
HERBERT & Co.,
Agents to Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Anti-friction Journal Bearings.
We, MARION ADELBERT ANDREWS and JAMES MILFORD ANDREWS, of the
City of Syracuse, County of Onondaga, and State of New York, United States
of America, 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 the construction of anti-friction journal bearings for
axles, shafts or arbors, and which are designed to reduce the friction.
The object is to produce an improved journal-bearing of the anti-friction species
in which the axle is grooved near its outer end creating a head, and an inner
shoulder, in which a ring fits loosely over the axle and lies in the groove therein,
and upon the top thereof, in which anti-friction rollers support and steady the ring
travelling in a groove around the outer periphery of the ring, and also travelling in
a groove around the inner wall of the outer casing, said rollers being mounted upon
separate arbors, mounted or secured in annular rings, and being held apart from each
other by their arbors.
Our invention consists in the several novel features of construction hereinafter
described and specifically set forth in the claims annexed.
The bearing is constructed as follows, reference being had to the accompanying
drawings, in which
Fig. 1, is a front elevation with the cap or cover of the casing removed.
Fig. 2. is a vertical transverse section.
Fig. 3, is a section taken on radial lines from the centre outward X X, both ways
through the centre of two of the friction rollers, as on line X X, Fig. 1.
Fig. 4, is a detail of the casing and rollers showing the corner of the walls of the
groove scarfed off or rounded.
Fig. 5, is a detail of part of the loose ring, and the axle, showing the ring with a
broad bearing, the whole width of the ring upon the axle.
A, is the casing constructed in sections which together create an inner circular
wall 1, within it, and between the back, and the front or cover, and 2 is an endless
groove cut in this wall.
B, is the loose ring having a plain inner wall 4, and an endless groove 5 around
its periphery.
α,
their
Between the ring and the casing we place the friction rollers or wheels
peripheries being adapted to fit into and travel in the grooves in the casing and in
the loose ring.
These rollers are separately mounted upon arbors 8, which are in turn mounted
or secured in annular rings 9, equi-distant and held apart from each other by the
arbors so that the rollers cannot rub against each other as they rotate.
The peripheries of the rollers can be made flat, or can have the corners scarfed
off more or less, or can be rounded as at 7, or the edges of the groove in the casing
and ring can be scarfed off or rounded as at g, more or less as desired, in the latter
instance, the peripheries of the rollers can be flat, or have the corners slightly
taken off.
The inner wall of the loose ring can be flat, to give a broad bearing upon the
axle, as at c, or this roll can be grooved as at d, to produce the flanges e, and thus
reduce the bearing upon the axle.
The axle 6 is provided with a groove 7, of the same width of the ring, of the
same form, or it may have the corners scarfed off or rounded the same as the groove
in the casing, as in Fig. 4, and the ring thus fits in the groove, while the head, h
bears against the outer edge of the ring, and the shoulder m against the inner edge,
and the head and shoulder hold the axle against end thrust.
It will thus be seen that the whole face of the ring travels upon the axle, and

page_text: that the rollers travel in grooves in the ring, and in the inner wall of the casing,
and that the rotation of the axle, frictionally rotates the ring, and the rotation of
the ring rotates the rollers so that they travel around on the ring and casing, while
the ring travels around the axle, so that the frictional wear is evenly distributed and
reduced to the minimum.
The inner diameter of the ring should be large enough to enable the head / to
pass freely through the same.
It will also be seen that the scarfing off of the edges of the grooves or rollers,
or both, causes the rollers to better follow the grooves, especially in a car-truck
upon a curve when there is a great end thrust upon the axle, and that all clipping
off of the corners is avoided, also the wear of the rollers upon the sides of the grooves
is reduced.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:
1-A sectional journal casing having an endless groove in its inner wall, a
central ring having an endless groove in its periphery, and rollers travelling in the
grooves in the casing wall, and in the periphery of the ring, in combination with an
axle grooved to receive the whole width of the inner wall of the ring, and passing
loosely through the ring.
2 A sectional journal casing, having an endless groove in its inner wall, scarfed.
off upon its edges, a central ring having an endless groove in its periphery, scarfed
off on its edges, and rollers travelling in the grooves in the casing wall and in the
periphery of the ring, in combination with an axle grooved to receive the
whole width of the inner wall of the ring, and scarfed off on the edges of
the groove.
ليمي
1
i 1001
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents for the Applicants.