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Патент USA US2128333

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Àug. 30, 1938.a
w. H. STATLER
2,123,333
’ WELDED UNDERFRAME'FQR MINE CARS
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Filed Nov. 23, 1935
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f1 H /S
Patented Aug. 30, 1938
2,128,333
UNITED STATES PATENT OFFlCE
2,128,333
WELDED UNDERFRAME FOR. MINE CARS
Walter H. Statler, Bethlehem, Pa., assignor to
Bethlehem Steel Company, a corporation of
Pennsylvania
Application November 23, 1935, Serial No. 51,241
7 Claims.
'My invention relates to improvements in under
frames for railway cars and more especially to the
construction of underframes for cars such as mine
cars or the small service type although it may be
5 adapted for use for other types of cars if desired.
One of the objects of my invention is to pro
duce a car underframe formed of parts welded
together to produce a strong and durable unitary
construction upon which the floor and body oi
10 the car constructed of Wood or metal or both may
be mounted.
A further object of my invention relates to the
manner of constructing and assembling the sill
members of the underframe so it can be handled
15 as a unit and placed upon a welding table or the
like position where the parts are secured together
to form a substantially integral structure.
Another object of my invention relates to the
manner of forming all of the sills of the car un
20 derframe of pressed metal U-shaped members,
each of uniform cross-sectional area throughout
its length but of diiîerent depths' to allow the
ends of the sills to be interlocked and the parts
welded directly together.
Another object of the invention relates to the
simplified manner of forming the underframe
members with straight cut ends and have the
ñanges only welded directly together without ad
ditional connecting means between the webs of
50 the members thereby obviating the necessity of
forming special shaped ends and using rivets or
bolts and the punching of holes in the parts con
nected.
Other advantages and objects of my invention
i5 will be disclosed and explained in the following
description and illustrated in the accompanying
one sheet of drawings in which:
Figure 1 is a top plan View of my improved car
underframe illustrating the application of my in
0 vention.
Figure 2 is a side elevation.
Figure 3 is a transverse section taken on the
line 3-3 of Fig. 1.
Figure 4 is a longitudinal section through the
5 central portion of one end of the car underframe
taken on the line 4_4 of Fig. 1, but drawn on a
larger scale than Figs. 1 to 3.
Figure 5 is a detail section through one of the
end sills and bumper taken on the line 5_5 of
l Fig. 1.
Figure 6 is a transverse section through one of
the side sills taken on the line 6_6 of Fig. 1, and
Fig. 7 is a section view similar to Fig. 6 but show
ing the ñanges of the member the same width as
i the height of the web.
(Cl. 105-414)
In the embodiment of my invention illustrated
in the drawing the numeral I indicates U-shaped
pressed metal side sills each having a vertically
disposed web 2, and inwardly extending top and
bottom ilanges 3, of considerable width which may
be of slightly less width than the height of the
web as indicated in Fig. 6, substantially the same
width as indicated in Fig. 7, or it may be of even
greater Width if desired.
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The ends of the side sills are connected together 10
by means of end sills Il, also formed U-shaped of
pressed metal, each having a vertical web 5 with
inwardly extending flanges 6. The height of the
end sills being the same as the space between the
flanges 3 of the side sills, the ends of the end sills
being inserted or nested between the flanges of
the side sills and the said flanges welded directly
together as at l, and the corner connections are
further reinforced by top and bottom gusset
plates 8 which have their opposite edges welded
as at 9 to the top and bottom flanges 3 and 6 of
the side sills I and end sills â, respectively. The
central portions of the side sills I are connected.
together by a transverse sill l0, and at an inter
mediate point between’the end sills ‘l and l0 by
transverse sills I l which are of the same form and
cross-sectional area as the end sills and having
their` ends nested between the ñanges of the side
sills 3 and attached thereto by welding in` a simi
lar manner as the end sills. To further stiiîen
the side sills I, end sills 4, and transverse central
sills IB, the intermediate portions of each is rein
forced by means of a plurality of vertical trans
versely disposed web plates I2, which have their
inner, upper and lower edges welded to the verti
cal webs and top and bottom flanges of the sill
members. Draft sills I3 of U-shaped pressed
metal extend between the end sills Il and the in
termediate sills I I having their ends nested there
in between the flanges and welded thereto as at
I4.
The inner edges of the flanges 6 of each of '
the end sills 4 and the draft sills I3 are further
connected together by means of a U-shaped mem
ber I5 which is welded thereto and has a rein
forcing plate welded to the central portion as at ~
I6. The front of the central portion of the web
5 of the end sills 4 are each reinforced by means
of a plate welded thereto as at il.
The webs 5 of the end sills Il and the central
portion of the U-shaped members I5 are perfo 50
rated as at I8 and I9 to receive the ends of pipe
connections 20 which register with openings 2i
and 22 in the reinforcing plates i6 and I l, for
receiving the draw bars for the couplings (not
shown).
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553
2,128,333
2
To further stiffen the central portion of the car
underframe diagonal braces 23 of angle irons ex
tend between the central and intermediate sills
IIJ and Il and are welded thereto as at 24.
It will be noticed that these diagonal braces ex
Ul
tend from the central portions of the intermediate
sills at a point between the inner ends of the draft
sills to the outer end portions of the central trans
versely extending sill, in this manner the bufûng
and pulling stresses will be transmitted from the
central portions of the intermediate sills to the
outer end portions of the said central sill. This
manner of backing up the inner ends of the draft
sills and attaching the inner ends of the diagonal
braces to the end portions of the central sill pro
to be limited to the exact construction shown
and described, but may use such substitutions,
modifications or equivalents thereof, as are em
braced within the scope of my invention, or as
pointed out in the claims.
Having thus described my invention what I
claim as new and desire to secure by Letters Pat
ent is:
1. A car underframe comprising flanged U
shaped side sills and end sills, said end sills being 10
of less height than the side sills and assembled
with their ends between the flanges of the side
sills and welded directly thereto, gusset plates at
the corners of the underframe in the plane with
the flanges of the side sills and welded to said 15
flanges and the top and bottom flanges of the
duces a more rigid structure than if the inner
ends .of the diagonal braces were attached to the
side sills in which case the side sills would directly
receive the bufling and pulling stresses and be
20 liable to buckle.
The outer corner ends of the car underframe
are provided with U-shaped brackets 25 for sup
end sills, and buffer brackets welded to the ends
of the end sills and side sills adapted to rein
force and connect the ends of said side sills and
' end sills together.
porting spring pressed buffers 26. These brack
ets are welded directly to the ends of the side,
25 end sills and gusset plates and form an additional
reinforcing means therefor.
It will be noted that all of the sill members
used in the construction of my improved under
frame are made of U-shaped pressed sheet metal
30 having wide top and bottom flanges which may
be as long or lo-nger than the height of the webs
if desired. The side sills are made slightly deep
er than the transversely extending end and in
termediate sills.
'I‘he space between the flanges
20
2. A car underframe comprising flanged U
shaped side sills and end sills disposed with their
flanges extending inwardly adapted to connect
the ends of the side sills together, buffer brackets
welded to the ends of the end sills and side sills 25
adapted to reinforce and connect the ends of saidside sills and end sills together, transversely ex
tending U-shaped intermediate sills of uniform
depth disposed with their flanges extending
towards the end sills, said end and intermediate 3.0
sills adapted to extend the full width of the un
derframe and being of the same height as the
space between the flanges of the side sills and
adapted to have their ends assembled and sup
ported between the side sill flanges and welded
directly thereto, draft sills connecting the inter
the transverse sills, while the draft sills have mediate sills with the end sills assembled with
the same height as the space between the flanges their ends between the flanges of the end sills and
of the end and intermediate sills, this allows the intermediate sills and welded directly thereto,
ends `of the sills to be nested together so that and diagonal braces for reinforcing the central -LO
the assembled parts will interlock and be held in portion of the intermediate sills.
position during the welding operation without ad
3. A car underframe comprising U-shaped side
ditional supporting or clamping mechanism. and end sills disposed with their webs vertically
The wide flanges. enable me to weld the flanges and their flanges extending inwardly, transverse
of the sills directly together and form a very ly extending U-shaped central and intermediate
sills between the end sills, spaced draft sills hav
45 strong and rigid connection between the sills
members.
ing their opposite ends welded to the central por
It will also be noted that all of the parts which tions of the end and intermediate sills, and di
go to make up the underframe can be cut into agonal braces for reinforcing the central portions
lengths in the usual standard shearing machine of the intermediate sills each having one end
without special machinery and can then be as
welded to thev central portion of the intermediate
sembled and the flanges welded together without sills at a point between the inner ends of the
additional work.
spaced draft sills and the opposite end welded
It will further be noted that the ends of the to the outer end portions of the central sill adja
transversely extending sills are not secured to the cent to the side sills.
4. A car underframe comprising U-shaped side
Ul Cil webs of the side sills but are spaced apart there
C3 CH of the side sills being the same as the height of
from. This is also true with the draft sills in
relation to the end and intermediate sills.
Heretofore in making a connection of this kind
the inserted member on account of the inclined
surfaces of the flanges as in rolled sections or the
rounded corners between the flanges and the web
of the member to which it is attached has to be
coped to allow it to interlock properly and the
parts connected together by means of angles and
rivets, or the inserted member is formed with an
integral pressed flanged end of special shape and
the parts secured together in any approved man
ner, which requires considerable additional work
70
and expense.
While my invention has been described as
being particularly applicable to» mine and small
service cars it may, however, be applied to a
standard railroad car construction, if desired.
Although I have described and illustrated my
invention in considerable detail, I do not wish
sills and end sills disposed with their webs ver
tically and their flanges extending inwardly,
transversely extending U-shaped central and in
termediate sills between the end sills extending
the full width of the underframe, said end and
transversely extending U-shaped central and in
termediate sills being of uniform depth through
out their length and of less height than the side
sills and assembled with theirv ends between the
flanges of the side sills and welded to the flanges
of said side sills, spaced draft sills having their
opposite ends welded to the central portions of
the end and intermediate sills, and diagonal
braces for reinforcing the central portions of the
intermediate sills between the inner ends of the
draft sills each having one end welded to the
central portion of an intermediate sill at a point
between the inner ends of the spaced draft sills
and the opposite end Welded .to- `the outer endI
2,128,333
portions of the central sill adjacent to the side
sills.
5. A car underframe comprising U-shaped side
sills and end sills disposed with their webs Ver
tically and their flanges extending inwardly,
transversely extending U-shaped central and in
termediate sills between the end sills extending
the full width of the underfrarne, said end and
transversely extending U-shaped central and in
termediate sills being of uniform depth through
out their length and of the same height as the
space between the flanges of the side sills and
assembled with their ends between the flanges of
the side sills and Welded thereto, spaced draft
gd CII sills having their opposite ends welded to the
central portions of the end and intermediate:
sills, and a pair of diagonal braces for reinforc
ing the central portions of the intermediate sills
having one end welded to the central portion of
20 the intermediate sills at a point between the in
ner ends of the spaced draft sills and their o-p
posite ends welded to the outer ends of the cen
tral sill at opposite sides of the underframe ad
jacent to the side sills.
6. A car underframe comprising U-shaped side
sills and end sills disposed with their webs ver
tically and their flanges extending inwardly and
their ends welded together, transversely extend
ing U-shaped central and intermediate sills be
tween the end sills extending the full width of
the underframe and disposed with their webs
vertically and their flanges extending horizon
tally, said transversely extending U-shaped cen
tral and intermediate sills being of uniform depth
througho-ut their length and of less height than
the side sills and assembled with their ends be
tween the flanges of the side sills having their
3
ends in spaced relation with the Webs of the
side sills, a Welded connection between the flanges
of the side sills and the ends of the flanges of the
central and intermediate sills, spaced draft sills
having their opposite ends welded to the central
portions of the end and intermediate sills, a pair
of diagonal braces between each of the inter
mediate and central transverse sills, said diagonal
braces each having one end welded to the central
portion of an intermediate sill at a point between 10
the inner ends of the spaced draft sills and their
opposite ends welded to the opposite outer ends
of the central sill adjacent to the side sills.
7. A car underframe comprising U-shaped side
sills and end sills disposed with their webs ver
tically and their flanges extending inwardly, 15
transversely extending U-shaped central and in
termediate sills between the end sills extending
the full width of the underframe disposed with
their webs vertically and their flanges extending 20
horizontally, said transversely extending U
shaped end and intermediate sills being of uni
form depth throughout their length and of less
height than the side sills and assembled with
their flanged edges extending toward each other 25
with their ends between the flanges of the side
sills and welded thereto, spaced draft sills having
their opposite ends inserted between the flanges
of the central portions of the end and interme
diate sills, and a pair of diagonal braces on op
posite sides of the central transversely extending
sill each having one end welded to the central
portion of the intermediate sill at a point between
the inner ends of the spaced draft sills and the
opposite end welded to the outer end portions of
the central sill adjacent to the side sills.
WALTER I-I. STATLER.
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