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Патент USA US2124958

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July 26, 1938.
A. B. SEVERN
v
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"2,124,958
SIDE BEARING‘
Filed Oct. 9,‘ 1935
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2 Sheets-Sheet l
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INVENTOR.
- WIT/W355‘
m, WM”.
v 45%
ATTORNEYS.
'
July 26, ‘19538.
A. B. SEVERN
‘SIDE BEARING
2,124,958
2 Sheets-Sheet 2
112-1
2
7
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7
WITNESSES
W4. Wm.
$44 ’ ATTORNEYS?
v
2,124,958
Patented July 26, 1938
UNITED STATES PATENT OFFICE
2,124,958
SIDE BEARING
Arthur B. Severn, Pittsburgh, Pa., assignor to
A. Stucki, Pittsburgh,‘ Pa.
Application October 9, 1935, Serial No. 44,177
4 Claims. (Cl. 308-—226)
This invention relates to roller side bearings
for railway cars.
In the past it has been the customary practice
to make the roller housings for these bearings
5 from either cast or forged material, or from
rolled material, that is, specially rolled shapes,
which require the use of rolls of special contours.
The cast housings in addition to being heavy
are subject to the inherent well-known weak
nesses of cast articles. While the rolled housings
as heretofore made have been found satisfactory
from the standpoint of durability and Weight,
they have been found rather expensive to man
ufacture and place on the market. This is due
15 to the fact that it has been necessary to employ
a large number of different shaped rolls to pro
duce the different sizes and shapes required
which of course involves a large tool investment.
In addition they have involved quite a large
number of time-consuming and cost-adding op
erations to make them. First the plates from
which the channels are made are produced by
rolling. Next the plates formed by rolling are
reduced to channels and these channels then
' bent into the form of the housings. Further
more, it has often been the practice to attach
a roller-supporting ‘bearing plate to the base of
the housing by rivets and to provide holes
through the base beyond the ends of the plate for
the reception of bolts by which the bearing is
connected to the truck bolster. This requires
two sets of holes and two sets of fastening
members.
It is among the objects of this invention to
provide a housing for these bearings which is
made directly from ordinary flat plates by a
simple inexpensive operation.
This and various other objects as well as the
various other novel features and advantages of
the invention will be apparent from the accom
panying drawings, in which Fig. 1 is a plan view
of a complete bearing of the type contemplated
showing the housing constructed in accordance
with the invention; Fig. 2 is a side view thereof;
45 Fig. 3 is an end view of the bearing; Fig. 4 is a
plan view of the preferred embodiment of appa
ratus for forming the bearing housing of this
invention; and Fig. 5 is an end view thereof,
partly in section, taken on lines V-V of Fig. 4.
Referring to the ?rst three ?gures of the draw
50
ings, a roller side bearing is shown which com
prises .a channel-like housing I having therein a
bearing plate 2 for supporting a roller 3 which
projects above the upper edge of the housing.
55 In accordance with the invention this housing is
preferably formed‘ from a flat rectangular plate
of rolled steel, such as is produced on any ordi
nary rolling mill, and is made by bending it by
means of dies into the shape shown. Referring
to Fig. 3, the base 6 of the housing is preferably
made somewhat wider than the roller and curved
gradually at its two sides from the edges there
of to a point somewhat below the center of the
roller where its side walls 1 are extended up
wardly in parallel relation with each other. An 10
advantage of this form of base is that it lends
stability to the bearing in that it provides for
effectively resisting the housing against tilting.
On the base of the housing a bearing plate
2 is provided to form a Wearing surface for the
cylindrical-shaped anti-friction roller 3 which is
loosely disposed for rolling longitudinally of the
housing when the car body bolster (not shown)
frictionally engages the top of the roller and
moves horizontally relative to the truck bolster 20
on which the bearing is mounted.
As shown in -
Fig. 2, the bearing plate is preferably concave
lengthwise to cause the roller to return by gravi
ty to the center of the housing every time the
upper bolster rises out of engagement with the 25
roller. To prevent the roller from escaping at
the ends of the housing the side wall portions 1
are turned inwardly at right angles to form
abutments or end walls 8 disposed to engage and
30
limit the movement of the roller.
Another feature of the invention is that the
bearing plate 2 is adapted to be attached to the
base of the housing by the same rivets or the like
which are used to connect the bearing to the
truck bolster. That is, the plate 2 is provided
near its ends with openings 9 which are adapted
to register with and receive the rivets connecting
the base of the housing to the truck bolster. As
will be noted in the drawings these openings are
preferably arranged below the end walls 8 of
the housing and beyond the ends of the path of
movement of the roller, as shown by a broken
line in Fig. 2, so that the heads of bolts in the
openings can not interfere with the movement
of the roller. This manner of connecting the
plate to the housing does away with riveting
them together, and saves the time and material '
formerly involved in that operation.
A roller side bearing formed in accordance
with this invention has the advantages of 50
strength and durability characteristic of rolled
elements, without being costly or complicated
in construction.
One form of apparatus especially adapted for
forming the housings of the side bearings de 55
2
2,124,958
scribed herein is shown in Figs. 4 and 5 of the
drawings. Mounted on a suitable support is a
die block H which is provided in its upper sur
face with a rectangular depression l2 for receiv
ing a rectangular ?at rolled plate, indicated by
broken lines in Fig. 5, and centering it on the
block. The central portion of this depression is
provided with an elongate opening M extending
downwardly into the middle of the block Where
10 lateral openings 16 through the block open into
it. Reciprocable vertically in opening I4 is a ‘die
ll adapted to bend a ?at plate into channel
shape, as also shown in broken lines in Fig. 5, by
forcing the plate down through the opening the
15 side walls of which are curved to facilitate bend
ing the plate upwardly on both sides of the die
to form parallel ?anges. The channel thus
formed is carried downwardly by the die and
The housing-forming apparatus disclosed
herein is simple and dependable in operation. It
is likewise rapid because it forms a housing com
plete during a single cycle of operation.
According to the provisions of the patent stat
utes, I have explained the principle and mode of
operation of my invention and have illustrated
and described What I now consider to represent
its best embodiment.
However, I desire to have
it understood that, within the scope of the ap 10
pended claims, the invention may be practiced
otherwise than as speci?cally, illustrated and
described.
I claim:
1. A side bearing for railway cars, comprising
a one-piece housing formed of a plain ?at rolled
metal plate bent to form a base and roller-retain
ing side and end walls, the upper portions of said
forced against the interior of the block in a
recess l8 where the web 6 of the channel is prop
side walls being offset inwardly from the sides of
erly shaped and hardened by the pressure of the
die thereon.
The lower portion of die I‘! is as wide and long
said base of the housing and provided in its
upper face with a roller-guiding depression.
2. A side bearing housing for railway cars,
comprising a one-piece housing formed of a flat
rolled metal plate bent to form a base and side
and end walls, said side walls being disposed with
their upper portions substantially parallel and
spaced inwardly from the sides of the base and
with their lower portions extending outwardly to
the sides of said base.
30
as the inside of the channel web, but its sides and
ends taper upwardly to the die’s reduced upper
portion the opposite sides of which are parallel.
The lower portion of the die is formed from two
members l9 slidably dovetailed to the opposite
sides of a key 2| by which they are connected to
the upper portion of the die. These members
and the key are tapered longitudinally so that
they are held securely but detachably together
by a wedge ?t.
Reciprocable horizontally in each lateral open
ing l6 of the block is a die 22 having a contour
suitable for bending the channel ?anges in
wardly against the sides'of the reduced upper
portion of center die I l to form upright side walls
‘I having inclined lower portions integrally con
40 necting them with the base of the channel.
During this operation the center die serves as a
backing-up die for the side dies the ends of which
are turned inwardly for bending the ends of
housing walls 1 at right angles against the ends
of the center die to form end walls 8.
The three dies are reciprocated by any suit
able means, preferably by hydraulic cylinders 23.
The lateral dies may be operated simultaneously
or in succession, as desired.
After a side bearing housing has been formed
in this manner and lateral dies 22 have been re
tracted, it is necessary to disconnect lower mem
bers IQ of die I‘! from key 2| before the die can
be raised to free the housing. This is done by
sliding members l9 lengthwise of the key to dis
connect them therefrom, the ends of the die
block being provided with openings 24 through
which members I9 and the completed housing
may be removed.
said base, and a formed metal plate mounted on _
3. A side bearing housing for railway cars,
comprising a one-piece housing formed of a ?at
rolled metal plate bent to form a base and side
walls, the side walls having their upper portions
substantially parallel and spaced inwardly from 35
the sides of the base and with their lower por
tions inclined outwardly and downwardly to the
sides of said base, the ends of said parallel wall
portions being turned inwardly to provide end
walls.
40
4. A side bearing for railway cars, comprising
a one-piece housing formed of a ?at rolled metal
plate bent to form a base and side walls, said
side walls being disposed with their upper por
tions substantially parallel and offset inwardly 45
portions inclined outwardly and downwardly to
from the sides of the base and with their lower
the sides of said base, the ends of said parallel
wall portions being turned inwardly to provide
end walls, and a bearing plate mounted on said ,
base, said plate and base being provided below
said end walls with registering openings for the
reception of fastening members for connecting
the plate and housing to a support, and a roller
loosely mounted on said plate for movement
longitudinally of the housing.
ARTHUR B. SEVERN.
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