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Патент USA US2405398

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Aug- 5, 194%;
T. v. BUCKWALTER
2,405398'
CAR TRUCK '
Filed April 20, 1944
5 Sheets—Sheet 1
‘1/15
HTTORA/EL/S-
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A119» 5, 1945~
T. v.- BTUCIKWALTER
I 2,405,398
CAR TRUCK
Filed April 20, 1944
rE.
3 Sheets-Sheet 2 '
Aug» 5, 1946'
v
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T. v. BUCKWALTER '
CAR
TRUCK.
'
Filed April 20, 1944
2,405,398
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s Sheets-Sheet s
4-110
1/15 4 roe/<75. ‘I
Patented Aug. 6, 1946
' [2,405,398
UNITED STATES PATENT OFFICE
,
2,405,398
CAR TRUCK
Tracy V. Buc'kwalten'Massillon, Ohio, assignor to
The Timken Roller Bearing Company, Canton,
Ohio, a corporation of Ohio
‘
Application April 20, 1944, Serial No. 531,848
'1 Claims. (Cl. 105-193)
,This- application is
1
2
a continuation-in-part of
.eachof my copending applications Serial Nos.
424,692 and 424,693, ?led December 29, 1941, each
for patent for Car truck, which applications have
since matured into U. S. Patents Nos. 2,352,162'
and 2,352,163, granted June 27, 1944.
.
,
This. invention relates to car trucks of the
frame to side frame bmidway of the ends of said
truck.
_
Each truck side frame D comprises a truss
structure including a compression member I3 and
a tension member l4 that converge towards the
ends of said side frame and are connected mid-,
way of said ends by a pair of spaced upright bol-v
ster or column guides [5 that form a double strut
kind wherein the bolster is spring supported from
between said compression and tension members
the side frames and is adapted for limited bodily
movement laterally thereof. The principal ob 10 and cooperate therewith to form an opening
adapted to receive the adjacent end of the truck
ject of the present invention is to provide a strong
bolster E. The truck bolster has an upstanding
and durable, simple and inexpensive arrangement
center plate ring [6 formed integral therewith
for atruck of the above type that will check or
midway of the ends, thereof and is provided at
cushion the excessive lateral motion of the truck
bolster and thereby prevent lateral blows and 15 each end with an inverted channel side bearing
plate I8 that is riveted or otherwise rigidly se;
shocksfrom being transmitted to the truck side
cured to the top of said bolster. This side bear
frames, axle bearings and wheel ?anges and that
will return the parts to original position under
ingmember is mounted on the bolster with its
downwardly opening channel disposed crosswise
normal running conditions. The invention con
sists in the lateral motion resistance device and 20 thereof and straddling the middle, bolster ‘open
ing forming portion of the upper, or compression
in the construction, combinations and arrange
member 13 of the truck side frame.
ments of parts hereinafter described and claimed.
The truck bolster E has each end thereof 'yield- ,
In the accompanying drawings which form part
ably supported in the bolster opening of an ad’
of this speci?cation and wherein like symbols refer
to like parts wherever they occur,
25 jacent side frame D for vertical movement thereto
Fig. 1 is a. plan view of a railway car truck pro
preferably by means of an upper nest or group of
coil springs 20 and a large single lower coil spring
2|. The lower spring 2! seats in a circular pocket
or well 22 provided therefor in the portion of the
Fig. 2 is a sideelevational view of said car truck,
. Fig. 73 is an enlarged fragmentary vertical 30 side frame tension member that forms the bot
tom of the bolster opening; and the upper group
cross-sectional view on the line 3—3 in Fig. 1,
or nest of springs 20 seats in a pocket 23 provided
‘Fig. 4 is a fragmentary plan viewv of the. parts
therefor in the underside of the bolster and is
shown in Fig. 3,
_
supported on'a spring plate or follower 24 which,
Fig. 5 isa fragmentary vertical sectional view
on the line 5—5 in Fig. 3,
35 in turn, is-supported on the upper end of the
single coil spring 2|.
"
Fig. 6 is a similar cross-sectional view on the
.The truck is provided on opposite sides of the
line 6-6 in Fig. 3,
bolster E with lateral motion resisting devices.
Fig. '7 is a part plan and part horizontal vsec
Each of these devices comprises two spaced axi
tional View of one of the supporting brackets for
the lateral motion resisting device,
,
40 ally alined horizontal bars or rods 26 that are
mounted on the bolster for independent sliding
Fig. 8 is a perspective view of the ?ller plate
axial movement crosswise of the truck. Each of
used with said supporting bracket,
these rods is slidably supported intermediate be
Fig. 9 is a plan view of a truck provided with
tween its ends in a suitable supporting bracket
the modi?ed form of lateral resistance device,
Fig. 10 is a vertical cross-sectional view on the 45 21 having an upstanding ?ange 21a that fits in a
vertical groove 21b provided therefor in the ad
line Ill-J0 in Fig. 9; and
jacent side face of the truck bolster, is rigidly
Fig. 11 is an enlarged'fragmentary vertical sec
secured in said groove preferably by means‘ of a
tion on the line lI-ll in Fig. 9.
horizontal bolt 28, and has a pair of spaced out-,
UIn the, accompanying drawings, my invention
is shown embodied in a spring-plankless inboard 60 standing lugs 210 with alined openings there-.
through through which said rod extends. 'The
railway car truck comprising a pair of roller
bracket 2‘! also has a horizontal bottom ?ange 21d
bearing axle constructions A having wheels B at
that extends beneath the truck bolster and is
the ends thereof, side frames D connecting said
secured to the underside thereof by a vertical
axle constructions inwardly of said Wheels and a
cross beam or truck bolster E extending from side 55 bolt 29, a ?ller plate 29a being interposed be}
vided with a lateral motion resistance device em
bodying my invention,
2,405,898
3
tween said flange and bolster to compensate for
variations in the vertical dimensions of said
able rods I23 and I24 is a heavy, preloaded coil
compression spring I33 which seats against the
bracket or bolster.
collars I28 and I3Ia. on said ends of said rods
*Interposed between the spaced adjacent ends
of the two relatively movable axially alined rods
and normally holds said collars against the op
posing faces of the lugs I25 and I29, respec
26 of each lateral motion device is a heavy, pre
tively. By this arrangement, transverse shocks
loaded coil compression spring 30 which seats
between the side frames I04 andgthe bolster I05
against collars 3I provided therefor on the oppos
are cushioned or dampened by the spring I33
ing ends of said rod. The rods 26 are provided
of each lateral motion resisting device which
between their opposing ends and their support-? 10 also operates to return the parts to normal po
ing brackets 21 with rigid abutment collars 32“
sition.
that are normally held by means of the coil
Obviously, the hereinbefore described con
spring 30 in abutting relation to the opposing
struction admits of considerable modi?cation
without departing from the invention. There
or inner ends of said brackets; and the remote
ends of said rod are provided vbeyond ‘their sup 15 fore, I do not wish to be limited to the precise
porting brackets with shoes 33 adapted upon‘
arrangements shown and described.
relative lateral motion of the‘ truck bolster and
What I claim is:
side frames to abut against wear plates 34 riv
1. A car truck comprising side frames having
eted or otherwise secured to the inner faces of
bolster openings therein, springs in said bolster
the bolster guides or columns I5 of the respec
openings, the bolster having its ends disposed in
tive truck side frames. As; shown in the draw
said bolster openings and supported on the
i'ngs, the upstanding ?ange 27a of the angle
springs therein, and means interposed between
bracket 27 has lugsZ'Ie at the upper corners
said bolster and side frames for yieldably resist
thereof that seat on the truck bolster at the
ing relative movement of said bolster and side
upper end of the vertical groove 2Tb therein; 25 frames laterally of said truck, said means com
and said lugs, together with the bottom ?ange
prising two spaced axially alined horizontal rods
21d of said bracket, prevent vertical movement
mounted on said bolster on each side of the 1on
of said bracket relative to said bolster due to the
gitudinal center line thereof for independent
limited axial sliding movement thereon laterally
frictional resistance between the shoes 33 of the
rods 26 and the wear plates 34 during relative 30 of said truck, and a preloaded coil compression
spring interposed between the spaced ends of said
vertical movement of said side plates and bolster.
rods and normally yieldably holding them at the
The‘lateral control devices ‘are of simple and
limit of their sliding movement in the direction
economical construction and effectively cushion
of said side frames.
transverse shocks between the bolster and side
2. A car truck comprising side frames having
frames and thus enable the truck to follow track 35
irregularities without transmitting the heavy lat
bolster openings therein, springs in said open
eral thrust loads-to the truck parts, roller bear
ings, a bolster having its end supported in said
ings and wheel ?anges. The supporting brackets
bolster openings on the springs therein, and
means for yieldably resisting relative movement
2'! for vthe'rods 25 of the lateral motion devices
are securely bolted to the sides and bottom of 40 of said bolster and side frames crosswise of said
truck, said means comprising spaced axially
thetr'uck-bolster and also engage said bolster
alined duplicate rods extending crosswise of the
in amanner that prevents relative movement of
said brackets and bolster, thereby relieving said
truck and supported on each side of said bolster
bolts of shearing strains caused by the heavy
lateral thrusts and the frictional resistance be
for axial sliding movement relative to each other,
tween the outer ends of said rods and the side
frames duringrelative vertical movement of said
bolster‘ andside frames;
,
'
The lateral motion ‘resisting device shown in
Figs. ‘9 to 11, inclusive, comprises two spaced '
axiallyjalined horizontal bars or rods I23 and
‘I24"mountedon"the bolster It?» for independent
axial sliding movement crosswiserof the truck.
k said rods being disposed with their remote ends
in abutting relation to the inner faces of the re
spective side frames, abutments removably se
cured to said bolster for limiting the movement
of. said rods in the direction of the side frames,
and a pre-loaded coil compression'spring inter
posed between the spaced ends of said rods and
normally holding said rods in engagement with
said
abutments.
'
-
'
3. A car truck comprisingside frames having
ably supported in a'single upstanding lug I25 on 55 bolster openings therein, a bolster having its ends
supported in said bolster openings, and means
the bolster and is provided at its side frame op
for yieldably resisting relative movement of said
posing end with a head I28 that is disposed in
bolster and side frames laterally ‘of said truck,
endwise abutting relation to a pad I21 welded
said means comprising two spaced axially alined
to the inner side face of the compression member
II2 of one side frame I94. The other end of the 60 horizontally disposed rods extending crosswise of
the truck and supported on said bolster for ax
short rod I23 has a collar I28 rigid therewith
ial sliding movement relative to each other, said
that is disposed in abutting relation to the inner
rods being disposed with their remote ends in
side face of the lug I25 for supporting said rod.
abutting relation to the inner faces of the respec
The other rod I24 is a relatively long rod that
is slidably- supported in lugs I29 and I30 formed 65 tive side frames, abutments on said ‘bolster for
limiting the movement of ‘said rods in the direc
on and spaced apart lengthwise of the bolster ' I 05
The-rod I23 is a relatively short rod that is slid
tion of the side frames, and a compression spring
and is provided at its side frame opposing end
interposed between the-spaced ends of said rods
with a head I3I ‘that is disposed in abutting re‘
and normally holding them in engagement with
lation to a pad I32 welded to the inner side face
of the compression member II2 of the other 70 said‘ abutments, said» abutments- com rising
side frame. The other or'inner, endof the long
brackets secured to the vertical side face of s ' ->~\_
rod I24 has'a col1ar'I3Ia rigid therewith that is
disposed in abutting relation ‘to the ‘supporting
lug I25 for said rod. Interposedjbetweenzthe
bolster and snugly ?ttingfwithin vertical chan
neis provided therefore in’ said vertical side face
thereof;
,
j
,
‘
.
‘
g
I
"
spaced adjacent ends of the two relatively mov 75 ' '4: A car truck comprising side frames having
2,405,398
5
6
bolster openings therein, a‘ bolster having its ends
supported in said bolster openings, and means
yieldably resisting relative movement of said bol
normally held by said spring in abutting relation
to the inner ends of said brackets.
6. A car truck comprising side frames having
ster and side frames laterally of said truck, said
means comprising two spaced axialfy alined hor
izontally disposed rods extending crosswise of
bolster openings therein, springs in said bolster
openings. a bolster having its ends disposed in
said bolster openings and supported on the
the truck and supported on said bolster for ax
ial sliding movement relative to each other, said
rods being disposed with their remote ends in
abutting relation to the inner faces of the respec
tive side frames, abutments on saidbolster for
limiting the movement of said rods in the direc
tion of the side frames, a compression spring in
springs therein, and means interposed between
said bolster and said side frames for yieldably
resisting relative movement of said bolster and
10 side frames laterally of said truck, said means
terposed between the spaced ends of said rodsv
and normally holding them in engagement with 15'
said abutments, said abutments comprising angle
brackets bolted to the bottom and vertical side
faces of said bolster and snugly ?tting within ver
tical channels provided therefor in said vertical
side faces thereof, said brackets having portions 20
at the upper corners thereof that rest on seats‘ ,
comprising two spaced axially alined, horizontally
disposed rods extending crosswise of the truck and
supported on said bolster on each side of the
longitudinal center line thereof for axial sliding
movement relative to each other and to said
bolster and side frames, said rods being dis
posed with their remote ends in abutting rela
tion to the inner faces of the respective side
frames, abutments on said bolster for limiting
movement of said rods relative thereto’ in the,
direction of the side frames, and a compression
spring interposed between spaced ends of said
provided therefor on said bolster at the upper end
rods and normally holding them in engagement
of the vertical channels therein, and a filler plate
with said abutments.
interposed between said bracket and the bottom
7. A car truck comprising side frames having
of said bolster.
25
bolster openings therein, springs resting on the
5. A car truck comprising side frames having
bottoms of said bolster openings, at bolster hav
bolster openings therein, a bolster having its ends
supported in said bolster openings, and means
ing its ends disposed in said bolster openings and
for yieldably resisting relative movement of said
supported on the springs therein, and means in
bolster and side frames laterally of said truck, 30 terposed between said bolster and said side frames
for yieldably resisting relative movement of said
said means comprising two spaced axially alined
horizontally disposed rods extending crosswise
bolster and side frames laterally of said truck,
said means comprising two spaced axially alined,
of the truck on each side of said bolster and sup
horizontally disposed rods extending crosswise of
ported on the latter for axial sliding movement
relative to each other, shoes on the remote ends 35 the truck and supported on top of said bolster for
axial sliding movement relative to each other
of said rods disposed in abutting relation to the
and to said bolster and side frames, said rods
inner faces of the respective side frames, abut
having heads at their remote ends disposed in
ments on said bolster for limiting the movement
abuttinglrelation to the inner faces of the re
of said rods in the direction of the side frames,
and a compression spring interposed between 40 spective side frames, said bolster having lugs on
the top thereof for slidably supporting the re--,
the spaced ends of said rods and normally hold
spective rods and for limiting movement of said
ing them in engagement with said abutments,
rods in the direction of said side frames, and a
said abutments comprising brackets bolted to the
preloaded compression spring interposed between
vertical side face of said bolster and snugly ?t
spaced ends of said rods and normally holding
46
ting within vertical channels provided therefor
them in engagement with the supporting lugs
in said vertical side face thereof, said rods hav
therefor.
ing abutment collars rigid therewith that are
TRACY V. BUCKWAL'I'ER.
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