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Патент USA US2409037

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Get. '8, 194%
_
G.
G. GILPIN
2,409,035
RAILWAY CAR STRUCTURE
Filed Oct. 2'7’.v 1943
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2 Sheets-Sheet 1
Get. 8, 1946.
2,409,035
e. s. GlLPIN
RAILWAY CAR STRUCTURE
2 Sheets-Sheei 2
‘Filed Oct. 27, 1943
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2,409,035
Patented Oct. 8, 194%
UNITED STATES PATENT OFFICE
2,409,035
RAILWAY CAR STRUCTURE
Garth G. Gilpin, Chicago, Ill., assignor-to Stand
ard Railway Equipment Manufacturing Com
pany, Chicago, Ill., a corporation of Delaware
Application October 27, 1943,‘Serial No._508,083
6 Claims. (Cl. 105~409)
1
My invention relates to railway freight cars and
more particularly to the wall structure for open
top railway cars, such as hopper and gondola
cars, though the construction is adaptable for
other parts of conventional railway freight cars,
such as end walls, doors and separate panels.
Railway freight cars are generally designed so
that the side walls are girders or trusses to carry
part of the weight of the lading and the car itself
to the body bolsters which transmit such load to
the trucks. Such walls also, of course, retain the
load in the car. Since the outside width of any
car is limited by the dimensions of tunnels and
projections adjacent the track; and the pay-load
2
the free and ready discharge of the lading. Even
rivet heads are objectionable. It is important,
therefore, that the portions of the car wall adiae
cent to Or forming part of the top and bottom
chords, respectively, are sloped to eliminate
pockets which would retain parts of certain lad
ings (such as sand, chats or ?ne coal). It is also
important that the upper sloping element be as
near the top of the side wall as possible and that
the sloping element of the bottom chord be as
near the bottom of the interior of the car as pos
sible because the further these two elements are
apart the greater the cubical capacity of the car
will be.
The entire wall being shaped from ?at sheet
metal plates, bent, pressed or otherwise formed
without the necessity of heating, provides the
is limited to the cubical capacity of the car, it is
extremely desirable to so design the walls of the
car so that the space, otherwise occupied by the
most economical Way of constructing the car wall,
wall itself, is available for lading and thereby
which is another important object of the inven
the cubical capacity of the car is increased with
out increasing the overall car dimensions. This 20 tion.
Other objects and advantages of the invention
constitutes the principal object of the invention.
will appear in the following description thereof.
Attempts have heretofore been made to in
Referring now to the accompanying drawings
crease the capacity of cars by bulging outwardly
forming part of this application and wherein like
central parts of wall panels, such, for example, as
shown in the Hart Patent No. 1,623,591 of April 25 reference characters indicate like parts:
Fig. 1 is a partial side elevation of a hopper
5, 1927. With my present invention, however,
car side wall embodying one form of my invention.
the whole wall, from the center line of bolster at
Fig. 2 is a top plan view of Fig. 1.
'
one end to that at the other end, is disposed out~
Fig. 3 is a longitudinal section on the line 3-—3
side of the car posts, and thereby, is, in effect, ‘
one continuous outwardly bulged panel, affording 30 of Fig. 1.
the maximum possible inside ‘width of car, and
this without decreasing the strength of such car
wall, which is another object of my present in
vention.
Another object of the invention is to form the
wall posts which extend within the lading corn
partment of a single web of relatively thin mate
rial to thereby reduce the carrying capacity of
the car the minimum amount and to assure a
complete discharge of the load when the hopper 40
doors are opened or when the car is turned up
side down for unloading.
As stated before, the side wall of a hopper or
gondola railway car is a girder between the car
Fig. 4 is a vertical section on the line 4-4 of
Fig. 1.
Fig. 5 is a section on the line 5-5 of Fig. 1.
Fig. 6 is a perspective view of the inside por
tion of a car wall embodying the invention.
Fig. '7 shows the chamfered top of one of the
stakes.
Fig. .8 shows how two wall sheets and a stake
are welded together.
Fig. 9 is a vertical section through the lower
chord of a modi?ed form of the invention.
In the form of invention illustrated in Figs. 1
to 8 inclusive, my improved wall for railway car
comprises a vertical wall sheet 2 extending sub
from end to end of car in one or more
bolsters and as girders comprise top chords, bot 45 stantially
pieces and comprising a main portion 3 and up
tom chords, web plates and web plate stiffeners.
per margin portion bent to provide an upwardly
The side walls are also load retaining means in
and inwardly inclined marginal portion 4. The
which some of the stiffeners function as posts or
stakes. Such cars are sometimes unloaded by
girder sti?eners or stakes 5 are preferably made
opening the doors in the hoppers which are po 50 of ??at metallic bars extending transversely of
the car whichare chamfered (1) at their upper
sitioned between the center sills and side sills of
ends (Fig. 7) to accommodate the inclined mar
the car and other times are unloaded by turning
ginal portion 4 of the wall sheet 2. The main
the car almost upside down in a dumping ma
portion 3 and the inclined marginal portion 4 are
chine. In either event it is imperative that there
be no obstruction within the car to interfere with 55 both welded to the outer edges of severalrstakes
2,409,035
3
-4
5 including the chamfered portions 1 thereof.
ing or riveting. The member 20 ‘cooperates with
the lower portion of the wall sheet 2 (and the
angle 26 if used) to form a very strong tension
When the wall is made of more than one wall
sheet the edges of the adjacent wall sheets over
lap the edge of a stake 5 and the adjacent edges
chord.
of the wall sheets are welded together and to O1
The conventional railway hopper car has a
the adjacent stake by a single row of welded ma
bottom chord member comprising an angle 28
terial, as shown (8) in Fig. 8. By this arrange
extending from bolster to bolster and when using
ment very few wall sheets per car need be used;
my improved wall for repairing such old cars I
in fact, I contemplate extending each sheet from
prefer to leave this angle 26 in the car and secure
the bolster line I!) to the middle ll of the car, as 10 my bottom chord member 20 to it, as shown in
shown in Fig. 1. As each stake 5 comprises a
Fig. 4. The vertical stakes 5 extend preferably
single web there is practically no interference
to the bottom of this angle 26 and are secured
with the free discharge of the lading, as no pock
thereto. In this arrangement the angle 26 re
ets are formed where the stakes meet the top and
inforces my bottom chord member 20. The hop
bottom chords, respectively. Furthermore, a ?at
per sheets 28 are secured in any manner to either
metallic plate forms a very strong stiffener for
or both my bottom chord member or the angle
the car wall as a girder and a very strong stake
26, as shown in Fig. 4.
or post for the car wall as a retaining wall; that
I prefer to make my bottom chord member 20
is, provided that the ends of the stakes are ade
of metallic plate having spaced slots extending
quately attached to the top and bottom chords,
from one edge thereof with the portions of the
respectively, as is hereinafter brought out. The
plate between the slots forming the inclined por
stakes 5 are restrained from lateral de?ection un
tions 22 and the unslotted portions forming the
der stress by being attached not only to the wall
vertical wall 2| which is secured to the inside
sheet but by also being attached to the top and
edges of the stakes, all of which is shown in Figs.
bottom chords, respectively, as illustrated par
4 and 6.
,
ticularly in Fig. 6.
_
'
The inclined marginal portion 4 of the wall
The top chord of the girder includes an in
sheet, as shown in Figs. 4 and 6, extends to the
verted L-shaped section having a member l3
extreme top of the car and the inclined portion
having a horizontal arm [4 welded to the upper
part of the marginal portion 4 of the wall sheet
at [5 and a substantially vertical arm [6 welded
to the lower part of the marginal portion 4 of the
wall sheet below the tops of the stakes. This
combination of the angular member l3 and the
upper marginal portion 4 of the wall sheet pro
22 of the bottom chord is positioned as near the
bottom of the side wall as possible (allowing for
attachment of the hopper wall sheet) because
the further apart the inclined portions 4 and 22
are positioned, the greater will be the cubical
capacity of the car.
.
In the modi?cation shown in Fig. 9 there is
vides a hollow or box sectional top chord which is
shown a ‘modi?ed form of bottom chord member
strong in all directions and especially strong as
which is substantially the same as the bottom
the compression chord of the girder. By extend
chord member illustrated in Fig. 4 excepting that
ing the vertical arm [6 of said member I3 below
the side sill, illustrated at 26, Fig. 4, is made an
the tops of the stakes 5 an interlocking associ 40 integral part of the extension member. In the
ation or overlapping relationship between the
modified form, Fig, 9, the lower edge of the wall
chord and the stakes is provided whereby the tops
sheet is shown at 30, to which is welded the up
of the stakes are adequately secured to the top
wardly extending ?ange 3| of the bottom or ten
chord so that these elements will properly func
sion chord of the girder. Issuing from the lower
tion when the side wall is acting as a girder,
edge of this ?ange are downwardly and outward
‘and furthermore, the stakes are adequately at
ly inclined portions 32 which extend between
tached to the top chord so that the wall will
adjacent stakes and are welded to the vertical
properly function as a retaining wall because the
sides thereof. At the lower edge of the inclined
stakes properly transfer any load imposed there
‘ portion the chord member is bent to provide a
on (by the wall sheets) to the top chord. .As an ,
vertical portion 33, from the lower edge of which
added protection it may be desirable to use a
the member is again bent to provide the hori
tie strut member l8 between some stakes on .op—
zontal ?ange 34 which may support the floor 35 of
posite sides of the car, as, for instance, as shown
in Figs. 4 and 6.
'
a gondola car when the invention is used with
such a car, or may be attached to a structural
In order not to increase the overall width of
element of the underframe of the car, such as the
the car, the top chord does not extend beyond
cross bearer 36.
the plane of the main portion 3 of the wall sheet;
Applicant's copending application, ?led con
in fact, a su?iciently strong chord may be pro
currently herewith, Serial No, 508,082, discloses
vided while allowing the vertical arm i6 of the
but does not claim certain structures shown and
member is to be well within the outer plane of
“
(30 claimed herein.
the main portion 3 of the wall sheet, as shown
The accompanying drawings illustrate the pre
inFig. 4.
ferred form of the invention, though it is to be
The bottom chord or tension chord of the
understood that the invention is not limited to
girder includes a member 20 having a vertical
the exact details of construction shown and de
portion 2| welded to the inside edges of the stakes
scribed, as it is obvious that various modi?cations
5 and upwardly and outwardly inclined portions
thereof, within the scope of the claims, will occur
22 extending between the stakes and welded to
to persons skilled in the art.
the vertical sides thereof and in alignment with
I claim:
corresponding inclined portions on the opposite
1. A wall for a railway car comprising spaced
sides of the stakes 5 so that, in effect, the in 70 apart stakes each comprising a single web ex
clined portions 22 constitute a single inclined por
tending transversely of said car and chamfered
tion as far as the tension value is concerned.
at its upper outer edge, a wall sheet bent along
The member 20 preferably also includes upstand
its upper portion to the plane of said chamfers
ing’, portions 23 hearing against and secured to
and welded to the outer edges of said stakes in~
the main portions 3 of the wall sheets for weld 75 cluding the chamfered portions thereof, and a
2,409,035
5
top chord comprising an inverted L-shaped sec
tion welded at both edges thereof to the bent por
tion of said wall sheet in overlapping relation
with said stakes.
6
formed. of a wall sheet comprising a vertical main
portion and an inclined marginal portion, a, plu
rality of spaced vertical stakes each including a
portion extending normally to said wall sheet
2. A Wall for a railwway car comprising a
which are secured to one side of the main portion
girder formed of spaced apart stakes each com
prising a portion extending transversely of said
car and having a chamfered end, a wall sheet
and the marginal portion of the wall sheet; and
a chord comprising an L-shaped section secured
along both of its edges to the bent portion of said
including the chamfered portions thereof, and a
chord comprising a, continuous angular member
5. A wall for a railway car comprising spaced
apart stakes each comprising a single web ex
wall sheet in overlapping relation with said
bent along a marginal portion to the plane of
said chamfers and welded to edges of said stakes 10 stakes.
tending transversely of said car and chamfered
at its upper outer edge, a wall sheet bent to the
of said wall sheet in overlapping relation with the
15 plane of said chamfers and welded to the outer
chamfered ends of said stakes.
edges of said stakes including the chamfered por
3. A wall for a railway car comprising a wall
tions thereof, and a chord comprising an L
sheet comprising a vertical main portion and an
secured along both its edges to the bent portion
upwardly and inwardly inclined marginal por
tion, a plurality of spaced vertical stakes formed
of ?at metallic bars extending normally to said
wall sheet which are welded to the inside of the
main portion and the marginal portion of the
Wall sheet; a top chord including a member
comprising a substantially horizontal arm welded
to the upper part of said marginal portion and, a i
substantially vertical arm welded to said mar
ginal portion below the tops of the stakes, Where
by the said marginal portion and the said mem
ber form a hollow top chord in overlapping rela
30
tion with the stakes.
4. A wall for a railway car comprising a girder
shaped section welded at both edges thereof to
the bent portion of said wall sheet in overlap
ping relation with said' stakes.
'
6. A wall for a railway car comprising spaced
apart stakes each including a portion extending
transversely of said car, and chamfered at an
outer end margin thereof, a wall sheet bent to the
plane of said chamfers and secured to said stakes
including the chamfered margin thereof, and a
chord comprising an L-shaped section welded at
both edges thereof to the bent portion of said wall
sheet in overlapping relation with said stakes.
GARTH Gr. GILPIN.
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