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Патент USA US2088488

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July 27, 1937.
'
T. H. SCHOEPF ET AL
2,088,488
ARTICULA'I‘ED CAR
Filea Feb. 15, 1935
2 Sheets-Sheet 1
Arm/PM”; ‘
Patented July 27, 1937
_
UNITED STATES
,
2,088,488
PATENT OFFICE”:
2,088,488‘
ARTICULATED oAR
' " '
Theodore H. .Schoepf and David- M. Ritchie, Cin
cinnati, Ohio, assignors t0. The.v Cincinnati
Traction Bldg. Company, Cincinnati, vOhio, a
corporation of Ohio
> Application February 15, 1935, sat-.1 No. ‘6,629 I
18 Claims. .
invention relates to articulated cars.
Itis an object of our invention‘ to provide an‘
I
articulated construction between railway cars.
It is theparticular object of the invention to
5 pprovidean articulation which permitsthe cars be
ing separated withoutelevating the cars to remove
the trunnions from the center plates or sockets.
The object is to provide a two-part center plate,
orsocket, vthat can be used as a single socket or
(c1..1o5_.4,) ’
plate or socket or unlocked.
The further ad- v
vantage is secured of not disturbing the vestibule
in‘ any manner so that it will travel with one of
the cars,‘ and needs no special mechanism for that‘
purpose. Under the present method'it is necessary 5 .
to completely dismantle the trunnions from one
another and ‘from the socket platev or'center
plate, and it is necessary to give special treatment
to 'the vestibule", both in assembling and dis
assembling." ‘It is necessary to use ‘heavy cranes,’ mi
"as a single body having a plurality of sockets,
and which can be split in two parts when de
with special cradles, in order to pull the cars apart sired. When so split the two-part center plate is and
supportthem when it is necessary to inspect
still engaged with the respective trunnion of the
thertrunnion joints, and lubricate. The present
respective-car with which the half of the center invention
eliminates these disadvantages.
'
1plate is associated. By our invention it is possi
The
present
articulated
cars
do
not
‘provide
.for}
ble to detach one car from the other without de
mounting the trunnion from the particular socket universal movement of the trunnions and the sup
port for the vestibule about a common center.
I
irirwhich it normally rests, or the particular half They
do not provide broad bearing ‘surfaces for
of the socket ‘in which it normally rests.
A further important object is the provision end thrust. They do not provide for'closely' en:
gaging interlocking faces without lost motion, or
of a socket or center plate surface described about taking e'nd thrust. In the present case the end 20
the‘ center of the movement of concentric inter
thrust istaken directly through the trunnions,‘
locking trunnions, while at the‘ same time per
and the center platei's primarily used‘for its nor-'
mitting ‘each trunnion a bearing face engaging mal
function of support. ‘The present invention.‘
wtwith the respective half of the bifurcated socket further
permits of free movementof' the’ trune 2r}
in" which it rests. The engaging faces are de
nions about the center of all rotation to accommo
scribed about the same center of movement here
date .torsional- twists, due to super-elevation of
tofore referred to.
>
rails
in curves, and changes,‘ of position, due to
It is a further object to provide a support
breaks
301tf0r the'vestibule for universal movement about
the same center of description.
It is‘ also an object to provide for the support
of this vestibule so that it will rotate with the
bolster upon which the center plate or socket is
mounted, and it will be permitted to work with
in ‘a limited'degree about the center of movement
of'the trunnions.
.
.
It is a further object to provide for the sup
porting of the vestibule or the vestibule platform,
40.;or'both, in overlapping relationship with respect
to‘the ends of the car bodies in such a position
that the ?oor of the vestibule is maintained in
substantial alignment with the ?oors of the cars.
v"It is a’ de?nite object to support the vestibule
45 _-;?oor either with orv without the vestibule casing
within one of the trunnions so that when the
trunnions are separated, upon the separation of
the bifurcated center plate, the vestibule will
travel with one of the cars and will be supported
in the trunnion of the car with which it travels.‘
This invention obviates the present di?iculty of
the necessity‘ for complete dismantling by eleva
tion of both cars at their articulated ends in'order "
to separate them. By the present invention the
55 lunlockingof the halves of the center plate per- '
mits the withdrawal substantially horizontally of
one car from the other.
in grade. '
'
'
'
.
’
Referring to the drawings:
‘
~'
Figure 1 is aside velevation, partially
in section, ‘ I
illustrating the upper portion of a bolster, the‘
divided‘center plate, the trunnions, the end sill
castings,_the car platform and the overlapping
vestibule platform, and the lower portion of the 35
vestibule.
.
'
'
.
~'
‘
tothe right or the left.
7,
-
.
,
-
halves of the center '
'45
Referring to the drawings in detail, | is av
transverse bolster mounted on a conventional
truck. This single» truck is adapted to support
the car bodies 2 and 3.
Mounted'on the bolster *
I is a divided casing comprised of the quarters '50;
4,5, 6 and'l; The-.quarters 4 and 5 make one- ‘
half of the -casing,.v and ‘the quarters 6 and 1
form the other half of the casing, the halves being
connected together by the bolts 8 and 9.
r
The respective halves are provided with later- 5 fit
ally extending ?anges II], which- are engaged by
,-While the trunnions are interlocked in service ‘ the bolts H on either sideofthe assembled cas
they are so arranged as to slide horizontally away ing. These bolts pass through the bolster I. Each
mglfrom one another, when the
~
Figurez is a section on-the line 2-2 of'Fig»
ure 1, looking in the direction of the arrows.
Figure'3‘is a section on the line 3-3 of Fig
ure 1; looking in the direction-of the arrows. '40.
Figure 4 is a top plan view of. the center plate
showingthe upper-end'of the stud ‘3|, and it‘is
around this stud that the trunnions center 'in
'
turning'when the cars are directed by the tracks
half is retained on the lbolster‘ by ."the bolts-"l2,
l3,‘ I4 and _I|5,'with associated lockingmechanism.
2,088,488
2
and I5 are removed or loosened, and the casing
The casing halves when assembled are provid
ed with shoulders I6 and l‘! for engaging with halves are either removed ormoved laterally, and
the sides of the transverse bolster I. This casing then one of the car bodies, with'itsftru‘nnion, is
when assembled forms an open-ended cylinder, . moved‘ horizontally away from the bolster I, car
the bottom of which is closed by the top of the rying with it its half of the socket plate, while
bolster I, and the top of which is open. Fitted the other half of the socket plate and the other
within this cylinder are the halves l8 and I8, car body, with. its trunnion, are supported by the
bolster. It is preferable to remove the left-hand
which constitute the socket or center plate bear
ing. The inner surface of; these halves form a body and trunnion because that leaves the right 10
hand body,.socket plate and trunnion on the
semi-spherical surface described about the cen
ter 28. The upper margin of this‘semi-spherlcal bolster, and the trunnion 22 then supports the
surface is provided with an over-hanging ?ange vestibule platform 38 without disturbing that
2| to prevent the withdrawal vertically of the platform. Likewise,‘ the cars can be assembled
by reversing the steps just indicated. By provid
trunnions, hereinafter described.
.
15
The right-hand trunnion consists of a portion ing the overlapping halves of the casing around
15
of a sphere, designated 22, having a surface 23 the abutting halves of the socket plate the planes
described about the center 20 and engaging with of division of the'casing and socket plate are at
right‘ angles
strength
It will and
be understood
security inthat
the. articulation.
we desire‘ to‘ com-1
surfaces described about the center 20 so that
they engage with and fit the halves l8 and IQ of
the center plate. Both of these trunnions are
prehend within our invention such modi?cations '
provided, with shoulders 26 and 21, which engage
with the overhanging flange 2| to prevent with
25 drawal vertically of the trunnions when in op
eration. A space is left at 28 between the faces
29 and‘ 38 of these trunnions to accommodate
a stud 3|, which is located at the bottom of the
center plate. The purpose of the stud 3i isto
30 hold the trunnions from sliding out of the center
bearing plate, when the car bodies are separated,
35
to
one
This ‘provides
'
' II
a similar surface 24‘ of the trunnion 25, shown in
section. Both of these trunnions have their outer
another.
as come within‘the scope of the claims'and the?3
invention.
1
Having thus fully described our invention, what '
we claim as new and desire to secure by Letters 25) l
Patent, is:
'
'
'
I 1. In an articulated car construction-the com_'-'
bination of a divided'center' plate, trunnions‘
mounted in said center plateto permit‘ hori-i
zontal and vertical movement of the car bodies,
said trunnions being so'arranged as to‘ be sup-‘:1
and when, therefore, the trunnions are separated ‘ ported by said center plate as ito transmit thrusts
from the car bodies through said trunnions; and-'5.
from each other. This occurs'when one car is
means for detachably attaching at least ‘a part backed off from the other, or when both cars are
moved in a direction away from‘ each other. of said center plate to a truck bolster support
That is' the time that the stud 3| functions to
keep the part of the trunnion on the right, and ‘
the part of the trunnion on the left, from coming
out of the halves I8 and I9, respectively, of the
40 center bearing plate. .
ing said trunnions and car bodies,~whereby the‘.
opening resulting, fromdetaching a ‘part of the .
center plate permits the disengagement of the.
trunnions from one another without vertical;
movement thereof.
‘
The right-hand trunnion 22 is provided with
an open-endedpassageway 32, the bottom of
which is semi-spherical, as at 33, for receiving
the ball 34. This ball and its receiving surface
45 33 have their surfaces described about the same
center 28. Mounted upon this ball is the sup
porting pillar 35 for the floor 36 ‘of the vestibule,
which has the vestibule walls 31. It will be noted
that this floor'overlaps the ends of the cars 2 and
50 3 formed by the end sill‘castings 38‘ and 39 that
.
The pillar or column 35 is provided with a later
This
yoke is 3mounted at 4| on the column 35, between
the end sill castings 38 and 39. It extends out
wardly and thence downwardly‘so that its lower
ends 42 enter receiving-sockets‘ 43 in the upper
margins on opposite sides of the casing.‘ This
causes the vestibule and column 35 to rotate with
the bolster I, while at the same time permitting
free rocking movement of the vestibule to accom
modate itself to the movements of the car bodies
70 so that its ?oor can be aligned substantially with '
r3
loperatio'n
, When» it is desired to disassemble the joint, the
75 bolts‘ 8 and 9 are removed, the bolts l2, l3, l4
I
49,52:
trunnions on the respective cars, a separable cen-'
a horizontal axis, are made about the center 20
as these axes pass in vertical and horizontal di
the floors of the cars 2 and 3.
,
by it may be removed without disturbing the re
mainder of the combination.
3. In anarticulated car construction, a bolster,:
55 the car bodies,'whether about a vertical axis or
60 ally and downwardly extending yoke 40.
Y‘
body and the-portion of the center plate occupied‘,
carry the respective trunnions 22 and 25. These
trunnions are- mounted‘ upon the under sides
of the end sill castings 38 and 39 and depend‘
therefrom. All movements of the vestibule and
rections throughthe center 20.»
_
2, In ‘an articulated car construction, a bolster,
trunnions on the respective cars, and a separable
center plate mounted on said bolster, and divided. -_
on a verticalwline, and adapted to supportsaid
trunnions, whereby one trunnion withv its car
ter plate mountedon said bolster, and divided‘.
on a vertical line and adapted to support said.
trunnions, whereby one trunnion with its car
body andthe portion of the center plate occupied ;
by it may beremoved without disturbing‘ the ,re--v
mainder of the combination, and means of :sup-~
porting a vestibule in overlapping position with 1
respect to the car bodies when the articulation
is assembled so arranged that when the trunnions
and one portion of the center plate are disassem-Tiw;
bled the support and positioningof the vestibule ~
are not disturbed.
.~
'4. In combination, a pairof car bodies having?
depending trunnions, a vertically divided 'cen-"T‘
ter plate for receiving said trunnions, ‘and a truck ‘
bolster for' ‘supporting 'said center plate.
g 5; In combination, a pair of car bodies having"
depending trunnions, a vertically divided center 1
plate for receiving said trunnions, a'nd’ a"truck'
bolster for supporting said center plate, said 70
trunnions having arcuate faces described about a 1
common center.
6. In combination, a pair of car bodies having
depending trunnions, a divided center plate for ‘
receiving said trunnions, a truck bolster for sup
2,088,488
porting said center plate, said trunnions having
arcuate faces described about a common center,
and means on one of said trunnions for interen
gaging with the other of said trunnions, the en
5 gaging faces of said trunnions being described
about said common center but so arranged as to
permit of lateral movement for disengagement
of one trunnion from the other without disturb
ing the vertical position of said trunnions.
w '7. In combination, a bolster, a vertically di
vided center plate, at least one half of which is
detachably mounted on said bolster, and car
bodies having trunnions thereon mounted with
in said center plate for vertical and horizontal
15 movement of the bodies about a common axial
point.
8. In combination, a bolster, a divided center
plate, at least one-half of which is detachably
mounted on said bolster, car bodies having
20 trunnions thereon mounted within said center
plate for vertical and horizontal movements of
the bodies about a common axial center, said
trunnions extending one within the other to keep
the trunnions positioned with respect to the cen
25 ter plate, and interengaging features on the
trunnions and center plate to keep the trunnions
from vertical dislodgment from the center plate.
9. In combination, a bolster, a divided casing
anchored on said bolster, a divided center plate
30 mounted on said bolster within said casing, ad
jacent car bodies having depending trunnions
pivotally mounted in said center plate, said
trunnions being so arranged that upon the re
moval of said casing and the movement of one
35 half of said center plate the car bodies with
their trunnions may be separated laterally with
out vertical movement.
10..In combination, a bolster, a divided cas
ing anchored on said bolster, a divided center
40 plate mounted on said bolster within said casing,
adjacent car bodies having depending trunnions
pivotally mounted in said center plate, said trun
nions being so arranged that upon the removal
of said casing and the movement of one-half of
45 said center plate the car bodies with their trun
nions may be separated laterally‘ without ver
tical movement, and means on one trunnion for
50
interengaging with the other trunnion to provide
a semi-spherical thrust surface between said
trunnions.
11. In combination, a bolster, a divided casing
anchored on said bolster, a divided center plate
mounted on said bolster within said casing, ad
jacent car bodies having depending trunnions
55 pivotally mounted in said center plate, said trun
nions being so arranged that upon the removal
of said casing and the movement of one-half of
said center plate the car bodies with their trun
nions may be separated laterally without vertical
60 movement, means on one trunnion for interen~
gaging with the other trunnion to provide a semi
spherical thrust surface between said trunnions,
a vestibule, and means in one of said trunnions
for supporting said vestibule.
65
12. In combination, a bolster, a divided cas
ing anchored on said bolster, a divided center
plate mounted on said bolster within said cas
ing, adjacent car bodies having depending trun
nions pivotally mounted in said center plate,
70 said trunnions being so arranged that upon the
removal of said casing and the movement of
3
one-half of said center plate the car bodies with
their trunnions may be separated laterally with
out vertical movement, means on one trunnion
for interengaging with the other trunnion to
provide a semi-spherical thrust surface between
said trunnions, a vestibule, means in one of said
trunnions for supporting said vestibule, and
means associated wtih said vestibule-supporting
means for causing said vestibule to rotate with
said bolster.
10'
13. In combination, a bolster, a divided casing
anchored on said bolster, a divided center plate
mounted on said bolster Within said casing, ad
jacent car bodies having depending trunnions
pivotally mounted in said center ‘ p1ate, said
trunnions being so arranged that upon the re
moval of said casing and the movement of one
half of said center plate the car bodies with
their trunnions may be separated laterally with
out vertical movement, means on one trunnion 20
for interengaging with the other trunnion to
provide a semi-spherical thrust surface between
said trunnions, a vestibule, means in one of said
trunnions for supporting said vestibule, said vesti
bule-supporting means being so arranged as to 25
permit of universal movement within said trun
nion about the common axial point of movement
of the trunnions with respect to one another and
with respect to the center plate.
14. In combination, a bolster, a center plate 30
mounted on said bolster, adjacent car bodies,
each having a trunnion pivotally mounted in,
and located upon, said center plate, a. vestibule,
and means supporting said vestibule and pivotally
mounted in one of said trunnions.
35
15. In combination, a bolster, a center plate
mounted on said bolster, adjacent car bodies
each having a trunnion pivotally mounted in, and
located upon, said center plate, one of said trun
nions having a recess, and the other of said
trunnions having a projection opposite said re
cess and adapted to ?t in such recess, a vestibule,
and means supporting said vestibule, such means
being pivotally mounted within one of said trun
nions about the common center of movement 45
of said trunnions in said center plate.
16. In combination, a bolster, a center plate
mounted on said bolster, adjacent car bodies each
having a trunnion pivotally mounted in said
center plate, a vestibule, means for supporting
said vestibule and pivotally mounted in one of
said trunnions, and means on said vestibule
supporting means for causing said vestibule to
turn with said bolster.
17. In combination, a bolster, a divided center 55
plate mounted on said bolster, adjacent car bodies
having trunnions pivotally mounted in said cen
ter plate, a vestibule overlapping said trunnions,
and means of supporting said vestibule on one of
said trunnions for pivotal movement.
60
18. In combination, a bolster, a divided center
plate mounted on said bolster, adjacent car bodies
having trunnions pivotally mounted in said cen
ter plate, a vestibule overlapping said trunnions,
and means of supporting said vestibule on one of
said trunnions for pivotal movement about a com
mon center on which the faces of the trunnions
and the face of the center plate are described.
THEODORE H. SCHOEPF.
DAVID M. RITCHIE.
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