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Патент USA US2108676

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Feb. 15, 1938.
0. K. KJOLSETH
2,108,676
OSCILLATION RESTRAINT MECHANISM FOR LOCOMOTIVES OR CARS
Filed July 30, 1935
I
Inventor.
.Ole K. Kjolse’bh ,
b5 17’ 5,49
' ?sAttorneg.
2,108,675
Patented Feb. 15, 1938
UNITED STATES PATENT OFFICE .
2,108,876
OSCILLATION BESTEAINT MECHANISM FOR
LOCOMOTIVES OB CARS
Ole K. Kjolsctli, Erie, Pa., assignor to General
Electric Company, a corporation of New York
Application July 30, 1935, Serial No. 33,849
11 Claims.
(Cl. 105-174)
My invention relates to anoscillation restraint
mechanism for locomotive or car guiding trucks
and. more particularly, to an oscillation restraint
mechanism adapted to restrain oscillation of a
5 guiding truck about its center plate.
In constructing locomotives or cars, pivoted
guiding or auxiliary trucks are usually provided
Referring to the drawing, an electric locomo
tive superstructure III is supported by center pins
on main frames I2 and I3 of similar construction,
which are pivotally connected together at I311.
The side frames l5 of the main frame l2 are rig- 5
idly connected together by cross members includ
ing a, bolster H on which one end of the super
structure is supported on a center pin ||. The
to resist swaying or nosing of the platform struc
ture or supporting frame at high speeds, and also locomotive is propelled by driving wheels |‘|
10 to facilitate traversing a curve in the track by through axles journaled in journal boxes I3 on
exerting a turning moment on the front end of which the side frames I5 and I6 of the main
the frame. Restraining devices have been used frames l2'and l3 are supported. To facilitate,
on these guiding trucks which tend to maintain traversing curves in the track, the outer end
,the wheels of the truck in alignment with the of the main frame is supported upon a pivoted
16 frame and the other wheels of the locomotive or . guiding or auxiliary truck by a center pin |3 lat- ‘5
car.
Such devices have generally included erally movable with respect to the guiding truck
and carried by a guiding truck center plate 20
springs and lever mechanisms arranged to resist supported
on the truck frame 2|. The center
turning of the guiding truck on its supports in
rounding a curve and to return them to a posi
n" tion with the wheels in alignment with the rails
'
and the other wheels when the locomotive or car
traverses a straight portion of the track. These
restraining devices generally have not entirely
suppressed swaying or nosing of the locomotive
or car at high speeds, because when the trucks
are.turned out of alignment with each other the
force, exerted by the springs tending to return
~ them‘ to an aligned position, accelerates their
movement and causes them to swing past this
30 position and oscillate relative to the frame of
the locomotive or car about the truck center
plate before coming to rest.
An object of my invention is to provide an
improved mechanism for restraining oscillation
3;, of a guiding or auxiliary truck.
I
Further objects and advantages of my inven
tion will become apparent from the following
description referring to the accompanying draw
ing and the features of novelty which character
40 ize my invention will be pointed out with particu
‘
larity in the claims appended to and forming a
part of this speci?cation.
For a better understanding of my invention,
reference is made to the accompanying drawing
4:, wherein Fig. 1 is a side elevation of a locomotive
embodying my invention; Fig. 2 is a plan view
of an embodiment of my improved oscillation re
straint mechanism applied to the end of a guid
ing truck frame; Fig. 3 is a sectional view on the
50 line 3-3 of Fig. 2; Fig. 4 is a view on the line 4-4
of Fig. 3 showing a portion of the locomotive
frame structure in section; and Fig. 5 is a par
tially exploded perspective view of the elements
of an, embodiment of my improved universal
55 joint.
pin I9 is restrained against-lateral oscillation by
a lateral restraint device 20', which may be of
the type disclosed in my Patent 2,014,970, Sep- 2°
tember 17, 1935, or any other suitable arrange
ment. If desired, the center pin I9 may be re
siliently restrained against movement from its
central position on the center plate 2|). The 26
guiding truck is of the double axle type provided
with wheels 22 mounted on axles journaled in
journal boxes 23 which support the guiding truck
frame 2|.
The inner end of the guiding truck is connected 30
to the main supporting frame by an oscillation
restraint mechanism in which a radius rod se
.
cured to the truck is restrained against lateral
movement, is longitudinally and vertically trans
I latable, and provides a universal joint between
the end of the_guiding truck and the bolster it
of the main locomotive frame l2. This univer
sal joint is secured to the bolster l4 against rela
tive longitudinal movement by a bracket 24
which is attached to the bolster by bolts 25. The 40
bracket is provided with vertically extending
guide supports 26, which are interconnected by
a tie bar 21 fastened to the lower extremities of
the guide supports by bolts 28. In order to re
inforce the guide supports 26 against lateral 45
movement, they are welded to the bolster ll, as
indicated at 29. Vertically extending parallel
guides 30 are secured to the guide supports by
bolts 3|. A yoke 32 is provided with vertically
extending parallel guideways 33 slidably engaging 50
the guides 30 to provide a. vertically translatable
connection restraining lateral movement with re
spect to the bolster ll. These guideways are
provided with laterally extending ?anges 34 hav
ing parallel inner surfaces extending at right 55
2,108,670‘
angles to the faces of the guide shoes 30. These
surfaces are chamfered from the central parallel
surface toward each end, as indicated at 35, and
engage the ends of the guides 30 to provide a
vertically pivotal connection between the yoke 32
and the guides. The,yoke 32 is provided with
internal vertically extending arcuate bearing
surfaces 38, and the sides of the yoke are con
nected at their upper ends by the upper portion
10 of the yoke 32, and at the lower ends thereof by
a tie plate 81 welded thereto. A hearing block
38 provided with arcuate surfaces 39 is rotatably
fitted within the yoke bearing surfaces 36. The
bearing block 38 also is provided with a longi
15 tudinally extending cylindrical opening 40 of
slightly smaller diameter than the openings 36a
between the arcuate bearing surfaces 36 of the
yoke 32.
.
ing block ll and thereby provides against the
transmission of strains under these conditions.
When the locomotive or car traverses curves in
the track, the guiding truck enters the curved
section before the driving wheels and, conse
quently, tends to pivot laterally about the con
nection of the radius rod 4| to the bolster l4
of the main supporting frames. In order to pro
vide for this pivotal movement, the center pin
it is laterally slidable on the guiding truck cen
ter plate 20, and the bearing block 38 has been
provided with the arcuate bearing surfaces 39
rotatably ?tted in the arcuate bearing surfaces
86 of the yoke 32. When the guiding truck tends
to pivot about the radius bar, the distance be
tween the center pin [9 and the connection of
the radius bar to the bracket 24 tends to vary
slightly. In order to provide for this relative
The oscillation restraint mechanism is con
20 nected to the truck frame 2| by a rocker pin
4| having a slot 42 in the end thereof, and welded
at 48 to an angle bar 44 interconnecting the side
longitudinal movement, the rocker pin 41 is slid
ably ?tted in the bearing block 38, and provides 20
frames 2| of the guiding truck. The angle bar
44 is also rigidly secured to the guiding truck tie
25 bar 45 by a reinforcing plate 46, which is welded
to each of these bars. The rocker pin 4i is pro
vided with a cylindrical portion 41, which is
longitudinally slidable and rotatably fitted within
the longitudinally extending cylindrical opening
30 40 in the bearing block 88, so as to provide a
nonload transferring connection between the
guiding truck and the main supporting‘ frame
which is rotatable about a vertically extending
and the bolster l4. Thus, it is seen that I have
provided a vertically and longitudinally trans
latable universal joint between an end of the 26
guiding or auxiliary truck and the main support
ing frame which co-operates with a laterally
axis and a horizontally extending axis. In order
35 to more rigidly secure the rocker pin 4| with
40
a longitudinally translatable nonload transmit
ting connection between the guiding truck frame
movable center plate to provide an improved piv- -
otally connected guiding or auxiliary truck, and
provides against the transmission of strains be 30
tween the truck and the main frame when the
locomotive or car traverses a curve or irregular
ities in the track. This joint provides a laterally
nontranslatable connection between an end of
respect to the guiding truck frame, gusset plates
the guiding truck and the main supporting frame 35
and thereby co-operates with the center plate
48 and 49 are welded to the sides and bottom,
respectively, of the rocker pin and to the angle
support to restrain oscillations of the guiding
truck about its center plate.
bar 44.
In order to properly lubricate the various bear
ing surfaces of the universal joint, the upper
portion of the yoke 32 is provided with an oil
hole 50, which communicates with a correspond
ing oil hole 5! formed in the upper portion of
45 the bearing block 38 and communicating with
the longitudinally extending cylindrical bearing
'40 and with an oil groove 52 which communi
cates with the vertically extending arcuate bear
ing surfaces 39. Such an arrangement provides
50 a lubricant passage which is readily accessible
from the exterior of the yoke and is conveniently
located for lubricating the-bearing surfaces of
the oscillation restraint mechanism.
When the locomotive or car passes over irreg
55 ularities in the track, the wheels 22 of the guid
ing truck pass over these irregularities before the
While I have illustrated and described a par
ticular embodiment of my invention, modi?ca 40
tions thereof will occur to those skilled in the
art. I desire it to be understood, therefore, that
my invention is not to be limited to the particu
lar arrangement disclosed and I intend, in the
appended claims, to cover all modi?cations which
do not depart from the spirit and scope of my
invention.
What I claim as new and desire to secure by
Letters Patent of the United States, is:—
1. In combination with a locomotive or car
having a main supporting frame, an auxiliary
truck having a truck frame, laterally movable
means for supporting said main supporting
frame on said auxiliary truck, a truck oscilla
tion restraint mechanism including a universal
joint, means including a bracket for securing
driving wheels I‘! and, consequently, the frame ' said universal joint to said supporting frame, said
2| of the guiding truck tends to move vertically
with respect to the main supporting frame i 2,
60 and also tends to pivot vertically about the radius
bar connection. The yoke 32 of my improved
oscillation restraint device is vertically translat
able and vertically tiltable with respect to the
stationary bracket 24 about the guides 30 and,
65 thus, prevents the transmission of strains be
tween the guiding truck and the main frame
bolster l4 when relative vertical movement oc
curs between these parts. When the wheels 22
of the guiding truck pass over these irregularities
bracket having vertically extending guides, said
universal joint including a yoke having guide
ways arranged to engage said bracket guides, 60
means including chamfered ?anges on said yoke
arranged to engage said bracket guides for pro—
viding a pivotal connection therebetween, arou
ate bearings formed in said yoke, a bearing block
rotatably ?tted within said arcuate bearings, a
longitudinally extending bearing in said bearing
block, a rocker pin for said universal joint con
structed and arranged to have a rotatable and
longitudinally slidable engagement with said lon
gitudinally extending bearing in said bearing 70
70 in. the track, the guiding truck may also sway
slightly with respect to the main supporting
frame l2. In order to provide for this swaying
block, and means for rigidly securing said rocker
pin to an end of said truck frame.
movement, my improved radius bar is provided
with the cylindrical rocker bar 41 rotatably ?tted
75 in the cylindrical bearing opening 40 of the bear
having a main supporting frame, an auxiliary
truck having a. truck frame, laterally movable 75
2. In combination with a locomotive or car
9,108,076
,
3
means for supporting said supporting frame ‘on
said auxiliary truck, a truck oscillation restraint
mechanism including a.universal “joint, means
including a bracket for laterally restraining
movement oi’ said universal joint with respect to
bearing block, and ‘means for rigidlysecuring
guides secured to said bracket, said universal
‘joint including a yoke having guideways arranged
an auxiliary truck having a truck frame, lateral
ly movable means for supporting said side frames
on said auxiliary truck, an oscillation restraint
mechanism including a universal joint, means in 10
cluding a bracket for securing said universal joint
said rocker pin to an end of said truck frame. I . v
5.‘ A locomotive or car having a superstructure,
main side frames, a bolster extending between
and connected to said side frames, means for
said supporting frame. vertically extending supporting said superstructure on said bolster,
vi
to engage said guides, means including cham
10. fered ?anges on said yoke arranged to engage
said bracket guides for providing a pivotal con
nection therebetween, vertically extending arcu
ate bearings formed in said yoke, openings be
tween said arcuate bearings, a bearing block for
'15 said universal joint having bearing surfaces ro
tatably ?tted within said arcuate bearings, a lon
gitudinally extending bearing formed in said
bearing block, a rocker pin for said universal
joint constructed and arranged so as to have a
20 rotatable and longitudinally slidable engagement
with said bearing in said bearing block, and
means for rigidly securing said rocker pin to an
end of said truck frame.
to said bolster said bracket having vertically ex
tending guides, said universal joint including a
yokehaving guideways arranged to engage said
bracket guides, means including chamfered 15
?anges on said yoke arranged to engage said
bracket guides for providing a pivotal connection
therebetween, arcuate bearings formed in said
yoke, longitudinally extending openings between
said arcuate bearings, a bearing block for said 20
universal joint having bearing surfaces arranged
to rotatably engage said arcuate bearings, a
bearing in said bearing block, means for provid- ’
a lubricant passage from the exterior of said
3. A locomotive or car having a superstrucy ing
yoke and communicating with said arcuate bear 25
ture, main side frames. a bolster extending be
ings in said yoke and with said bearing in said
tween and connected to said side frames, means
block, a rocker pin for said universal
for supporting said superstructure on said bolster. bearing
joint constructed and arranged so as to have a
an auxiliary truck having a truck frame, lateral
longitudinally slidable and rotatable engage
ly movable means ‘for supporting said side frames ment with said bearing in said bearing block, and 30
30 on said auxiliary truck, an oscillation restraint
means for rigidly securing said rocker pin to an
mechanism including a universal joint, meansin
of said truck frame.
a
eluding‘ a bracket for securing said universal end
6. A locomotive or car having a superstructure,
joint to said bolster, said bracket having vertical
main side frames, a bolster extending between
ly extending guides, said universal joint including said
side frames, means for supporting said sup 85
85 a yoke having guideways arranged to engage said erstructure on said bolster, an auxiliary truck
bracket guides, means including chamfered having a truck frame, laterally movable means
?anges on said yoke arranged to engage said for supporting said side frames on said auxiliary
bracket guides for providing a pivotal connection truck, an oscillation restraint mechanism includ
therebetween, arcuate bearings formed in said ing a universal joint, means including a bracket
40 yok , openings between said arcuate‘bearings, a for restraining said universal joint against lat
bearing block for said universal joint having eral movement with respect to said bolster, said
bearing surfaces rotatably engaging said arcuate bracket including vertically extending guide sup
bearings, a cylindrical bearing formed in said ports, guides secured toysaid guide supports, said
bearing block; a rocker pin for said universal universal joint including a yoke having guide
45
joint constructed and arranged so as to have a
longitudinally slida'ble and rotatable engage
ment with said bearing in said bearing block, and
means for rigidly securing said rocker pin to an
end of said truck frame.
_
50 ' 4. A locomotive or car having a superstructure,
main side frames, a bolster ‘extending between
ways arranged to engage said guides, means in
cluding laterally extending ?anges on said yoke
chamfered toward each end and arranged to en;
gage said guides for providing a pivotal connec
tion between said guides and said guideways, 50
vertically extending arcuate bearings formed in
said yoke, longitudinally extending openings be
, and connected to said side frames, means for ' tween said bearings, a bearing block for said uni
supporting said superstructure on said bolster,
an auxiliary truck having a truck frame, lateral
55 ly movable means for supporting ‘said side frames
on said auxiliaryitruck, an oscillation restraint
mechanism including a universal joint, means
including a bracket for securing said universal
joint to said bolster, said bracket having vertical
60 ly extending guides, said universal joint includ
ing a yoke having guideways arranged to en
gage said guides, means including laterally ex—
versal joint having bearing surfaces arranged to
rotatably engage said arcuate bearings, a longi 55
tudinally extending bearing in said bearing block,
a. rocker pin for said universal joint constructed
and arranged so as to have a longitudinally slid
able and rotatable engagement with said longi
tudinally extending bearing, and means includ 60
ing brace plates secured to said rocker pin and
to said truck frame for rigidly securing said rock
er pin to an end of said truck frame.
'7. A locomotive or car having a superstruc
tending ?anges on said- yoke chamfered toward
ture, main side frames, a bolster extending be. 65
each end thereof arranged to’ engage said guides tween said side frames, means for supporting
65
for providing a pivotal connection therebetween, ‘said superstructure on said bolster, an auxiliary
arcuate bearings formed in said yoke, longitudi
truck having a truck frame, laterally movable
nally extending openings between said arcuate means for supporting said‘ side frames on said
bearings,' a bearing block for said universal joint auxiliary truck, an oscillation restraint mecha
70 having bearing surfaces arranged to rotatably ' nism including a universal joint, means includ“
engage said arcuate bearings, a longitudinally ing a bracket for restraining said universal joint
extending bearing in said bearing block, a rocker against lateral movement with respect to said
bolster, said bracket including vertically extend‘
pin for said universal joint constructed and ar
ranged so as to have a longitudinally slidable and ing guide supports, guides secured to said guide
75
75 rotatable engagement with said bearing in said supports, said universal joint including‘ a yoke
4
l
havingE guideways arranged to ‘engage said guides,
dius rod including a laterally fixed universal non
‘ means? including laterally extending ?anges on
load transferring Joint having a longitudinally
and vertically translatable connection to said
said yoke chamfered toward each end and ar
ranged to engage said guides for providing a piv
otal connection between said guides and said
bolster, means including a bracket for restrain
ing said universal Joint against lateral movement
guide shoes, vertically extending arcuate bear
with respect to said bolster, said bracket includ
ings formed in said yoke, openings between said
ing a pair of vertically extending guide supports,
arcuate bearings, a bearing block for said uni
versal Joint having bearing surfaces arranged to
10 rotatably engage said arcuate bearings, a longi
a tie bar interconnecting said guide supports,
having vertically extending guideways arranged
means for providing a lubricant passage from the
to slidably engage said vertically extending
guides, means including laterally extending ?anges
on said yoke chamfered toward each end and
longitudinally extending bearing in said bearing
block, a rocker pin for said universal joint con
structed and arranged so as to have a rotatable
and longitudinally slidable engagement with said
longitudinally extending bearing, and means in
20 cluding brace plates secured to said rocker pin
and to said truck frame for rigidly securing said
rocker pin to an end of said truck frame.
'
8. A locomotive or car having a superstruc
ture, main side frames, a bolster extending be
25 tween and connected to said side frames, means
for supporting said superstructure on said bol
ster, a double axle auxiliary truck having a
truck frame, laterally movable means for sup
porting said side frames on said auxiliary truck,
80 an oscillation restraint mechanism including a
universal non-load transferring joint having lim
ited longitudinal and vertical movement with
respect to said bolster, means including a bracket
' for restraining said universal joint against lateral
35 movement with respect to said bolster, said
bracket having vertically extending guides, said
universal joint includingayoke having guide ways
arranged to slidably engage saidvertically extend
ing guides, means including laterally extending
40 ?anges on said yoke chamfered toward each end
and arranged to tiltably engage said vertically
extending guides for providing a vertically piv
otal connection therebetween, vertically extend
ing arcuate bearings formed in said yoke, open
45 ings between said arcuate bearings, a bearing
block for said universal joint having arcuate
bearing surfaces arranged to rotatably engage
said arcuate bearings, a longitudinally extending
' cylindrical bearing formed in said bearing block,
50 means for providing a lubricant passage from
the exterior of said yoke and communicating
with said arcuate hearings in said yoke and with
said longitudinally extending bearing in said
bearing block, a rocker pin for said universal
55 joint constructed and arranged so as to have a
rotatable and longitudinally slidable engagement
with said longitudinally extending bearing, and
means for rigidly securing said rocker pin to an
60
supports, .said universal joint including a. yoke 10
tudinally extending bearing in said bearing block,
exterior of said yoke and communicating with
said arcuate bearings in said yoke and with said
is
vertically extending guides secured to said guide
end of said truck frame.
9. A locomotive or car having a superstruc
arranged to tiltably engage said vertically ex
tending guides for providing a vertically pivotal
connection between said guides and said guide
ways, internal vertically extending arcuate bear
ings formed in said yoke, tapered longitudinally
extending openings‘ between said arcuate bear 20
ings, means including an oil ‘hole extending
through the upper portion of said yoke for pro
viding a lubricating passage to said internalv ar
cuate bearings, a bearing block for said universal
joint having vertically extending arcuate bear
ing surfaces arranged to rotatably engage said
arcuate bearings, a longitudinally extending cy
lindrical bearing extending through said bearing
block, an oil hole and oil groove in said bearing
block arranged to communicate with said oil
hole in said yoke and to communicate with said
vertically extending arcuate bearing surfaces and
said cylindrical bearing, a cylindrical rocker pin
for said universal joint constructed and arranged
to make a rotatable and longitudinally slidable .
fit within said cylindrical bearing, said rocker pin
having a bifurcated end engaging an end of said
truck frame and being rigidly secured thereto,
and means including brace plates secured to said
rocker pin and to-said truck frame for rigidly 40
bracing said rocker pin with respect to said truck
frame.
10. A universal joint including a connecting
member having guides, a yoke having guideways
arranged to engage said guides, said guideways
including ?anges chamfered toward each end and
arranged to engage the sides of said guides, arcu
ate bearings formed in said yoke, an opening be
tween said arcuate bearings, a bearing block hav
ing arcuate bearing surfaces arranged to rotat
ably engage said arcuate bearings, a cylindrical
bearing formed in said bearing block, and a sec
ond connecting member having a cylindrical pin
extending through said opening between said
arcuate bearings and arranged to make a rotat
able engagement with said cylindrical bearing.
11. ‘A locomotive or car having a main sup
porting frame, an auxiliary truck having a
frame, laterally movable means for supporting
said main supporting frame on said auxiliary 60
truck frame, and means including an oscillation
ture, main side frames, a bolster extending be
tween and connecting said side frames, means restraint mechanism connected to an end of said
auxiliary truck frame and having a laterally fixed
for supporting said superstructure on said bol
and longitudinally and vertically translatable
ster,
driving
wheels
and
axles
arranged
to
sup
65
non-load transmitting connection to said main 65
port a portion of said main side frames, a double supporting frame, said non-load transmitting
axle auxiliary truck having a truck frame, means
connection including a universal joint longitudi
- including a laterally movable center pin for sup—
porting a portion of said main side frames on
70 said auxiliary truck, an oscillation restraint ra
nally ?xed with respect to said main supporting
frame.
OLE K. KJOLSETH.
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