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Патент USA US2131420

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Sept 27, 1938,-
w. v.'JoHNsoN
‘ 2,131,420
MINE CAR
Filed Dec. 4, 1955
4 Sheets-Sheet 1
h/ar
Sept. 27, 1938.'
_'
w_-V_ JQHNSON .
'
MINE
CAR
Filed Dec. 4, 1935
I
_
2,131,420 '
'
'
4 Sheets-Sheet 3
~ ATTORNEY
Sept. 27,l 1938.
w. v. JoHNsoN '
2,131,420
MINE CAR
Fil?’ed Das. 4, 1935
4 Sheets-Sheet 4
2,131,420
Patented Sept. 27, 1938
UNITED STATES lPATENT* OFFICE
American Car and Foundry Company,A New
York, N.l Y., a corporation of New Jersey
Application December 4, 1935, serial No. 52,768
15 Claims.
(Cl. 10E-364)
This invention relates to mine cars in general
and in particular to steel mine cars of the light
weight low bottom type.
Mine cars as previously built have been of two
5 general types, namely, the composite car and
the all-metal car, but in each case the car was
car is desired, the two ends of the frame will be ` '
made alike. The car comprises underframe unit
vantage.
Another object of the invention is the pro
vision of a car in which the usual massive sills
are
eliminated.
_
-
n
Another object of the invention is the provision
of a new and improved method of constructing
mine cars.
~
Yet another object of the invention is the pro
vision of a car in which the entire ñoor and longi
25 tudinal strength members are formed from a sin
gle deformed plate.
.
A further object of the invention is the pro
vision of a car having a new and improved spring
end construction.
A still further object of the invention is the pro
30
vision of a low-bottom car in which the customary
massive traction-truck is eliminated.
'
These and other objects will be apparent to one`
skilled in the art from a study of the following
35 description and appended drawings in which:
Figure 1 is a side elevation of one-half of the
car;
4
Fig. 2 is a side elevation of the other half of
the car and together with Fig. 1 shows the en
tire car;
Fig. 3 and Fig. 4 are plan views of the car shown
in Figs. 1 and 2 respectively and when taken Ato
gether show the entire plan of one-half the car;
Fig. 5 is an end elevational view with parts of
45
the floor broken away to better disclose the con
struction;
1
Y
,
Fig. 6 is a plan view partly in section of the im
proved end construction;
50
n
Referring now to the drawings in detail, the
ca_r is shown as of the end dump type, butv this is
merely representative since, if a rotary dump A5
made with heavy members forming an under
frame or its equivalent upon which the car iioor
and car superstructure was supported. This type
1O of construction was costly and wasteful of ma
terial and becomes increasingly objectionable as
the length of haul or height of hoist increases.
It is an object of this invention, therefore, to
provide a metal car which is light and strong and
15 in which the metal is distributed to the best ad
20
unit with the end member at the left side re
moved.
,
,
Fig. 7 is a sectional view on line .'I-‘I of Fig. 6
and shows the bumper construction;
'
Fig. 8 is a sectional view on line 8-8 of. Fig. 6
and shows the relation of the'draw -memberiand'
end member, and
,
Fig. 9 is a perspective view of .the .underframe
A, bumper B, coupler'member C, end gate D, side
walls E and pedestal forming member F,
The combined floor and base frame or under 10
irame member is formed of a single sheet of
metal which may be pressed but is preferablyso
designed as to be shaped in a break, thus elimi
nating expensive dies. The flat sheet I has por
tions cut out as at 2 at each end, while one or
both ends has an additional portion cut out as at
4 in case the car is to be of the end dump type.
After cutting out the necessary portions the sheet
I is bent upwardly to provide side portions 6, then
outwardly to provide ygunwales or side floor por- 20
tions 8 and while in this position iianges II) are
formed, then the sheet is bent as'at I2 to bring
the entire unit to the form shown in Fig. 9 where
in the flanges I0 and gunwales 8 are substan
tially parallel and the outer side portionsV I4 are 5y
substantially at right angles thereto. It is thus
seen that a one piece underframe member is
formed having substantially box section side por
tions with two sides of the boX section serving as
lading retaining portions.
l
End sill I6 is formed with web I8 and outwardly
directed top and bottom flanges I9 and 20 respec
tively and is of the proper length to lit between
and be overlapped by the side portions I4. The
end sill is also of such thickness as to rest upon
the flanges I0 and central íioor portion at the
bottom and contact with the gunwales at the top.
The end sill web abuts against the side portions 6
to which it is welded as well as to the outer side
portions I4, while the gunwales, central floor and
flanges IIJ are securely welded to the end sill
ñanges.
The bumper pockets are formed by welding
spaced plates 22, 23, 24 and 25 to the web and
ñanges at either end of the end sill and inserting
pressed channels suitably welded in place and
having webs 2‘6, lower. flanges 2l, and upper
iianges 28. The bumper'B is formed with curved
front face 30, lrearwardly directed top and bot
tom flanges 3l and 32 respectively, between which
is inserted spaced plates 33 and 34 suitably welded
in place and so positioned’as to form vwith the
pressed channels a pocket to receive bumper
springs S. The top and bottom ñanges of the
bumper have openings 35 punched therein to re
30
2
2,131,420
ceive ilat keys 36 against which the outer end of
the springs may bear. These keys pass through
elongated slots 38 in the top and bottom flanges 28
and 27 respectively of the bumper pocket chan
section sides of the underframe unit and these
sides, being open as they are, serve admirably to
protect the brake rigging which is of conventional
form. The brake shoes 12 are carried by hangers
14 suspended from brackets ‘I6 secured to the
underside of the gunwale or side iioor portion,
while the brake operating rod 'I8 and portions
of the brake operating mechanism 80 are also
carried in the semi-box section underframe sides.
The car is completed by addition of the side 10
walls which overlap and are secured to the outer
side portions and the end walls, one or both of
nels and are held in place by means of a curved
portion 31 and cotter pin 39.
The coupler member C is formed of a piece of
bar metal 4‘0 of substantially the same length as
the end sill and against which it normally rests,
10 being held there by the rear end of the bumper
springs. rIfhe bar is mounted and guided for
outward movement in elongated slots 42 punched
in the various vertical plates forming the bumper
and bumper pocket and is provided at its center
15 with a band 44 by which the car may be coupled
which may be fixed or swinging as desired.
to other cars. In order that the bar may be in- f
serted and removed readily from the car a slot .
45 is punched in at least one of the side portions
I4. It is thus seen that an extremely strong yet
20 light end construction is formed that provides
spring cushioned bumpers and draft gear.V
The end construction at both ends of the frame
are exactly similar whether the car be for a
rotary or end dump type and this is done not only
to provide a better car but to permit of more
rapid production. In case the car is to be used
for end dumping a portion, as previously stated,
is removed as at 4 and the removed piece of
metal is turned sidewise and pressed to form a
channel-shaped reenforcing member 48 which
is secured to the central iioor portion and lower
ilange of the end sill. A deformed Z-shaped de
?lector, having a lower flange 50 secured to the
car ñoor, an inclined web 5| and a top flange 52
secured to the top flange of the end sill is pro
vided and has its side edges conforming and
welded to the car underframe as clearly shown
in Figs. 4 and 9. A triangular-shaped pressing
53 may be provided whichis secured to the re
40 enforcing member 48 and deflector plate to sup
port the latter.
Extending between side portions 6 and I4 of the
underframe member and suitably secured there
to and to side floor portion 8 and flange I0, are
45 plates 54 which not only serve to stiffen the
construction but also retain said side portions,
flange and side ñoor in deñnite fixed relation.
The plates 54 are arranged intermediate the end
portions of the under frame, as can be seen in
50 Figs. 1 and 2, and as many plates as are re
quired may obviously be employed. Above the
points of body support, the side portion I4, side
floor 8 and ñange III are connected the plates 56
(see Fig. 5) which serve to retain the portion I4,
V55 side floor 8 and flange I0 in fixed relation and also
prevent deformation of the unit. If it is desired,
or necessary, reenforcing bars 58 may be welded
to the central floor portion in order to prevent
sagging thereof, although ordinarily they will not
In
the case of the fixed wall the side edges and lower
edge are flanged to connect to the side walls and 15
end construction respectively.
It is thus seen that an extremely light yet
strong car is providedv which is easy to build and
lends itself readily to modern shop methods of
construction. It is believed that the advantages 20
of a car constructed according tothe present
illustrative description is obvious as is also the
fact that various improvements, rearrangements
and modifications thereof may be made without
departing from the scope of the appended claims. 25
What is claimed is:
1. A one piece underframe unit for mine cars
comprising a central floor portion, inner side por
tions extending upwardly from said 'central floor
portion, side iioor portions extending outwardly 30
from said inner side portions, and outer side por
tions depending from said side floor portions and
each having a stiffening ilange at its lower edge
substantially in alignment with the central floor
portion.
2. A one piece underframe unit for mine cars
comprising, a central ñoor portion, inner side
portions extending upwardly from said central
floor portion, side floor portions extending out
wardly from said inner side portions, and outer 40
side portions depending from said side floor
portions and each having an inwardly directed
stiffening ñange at its lower edge said inner and
outer side portions being of substantially equal
depth.
3. A one piece underframe unitfor mine cars
comprising, a central ñoor portion, inner side por
tions extending upwardly from said central iioor
portion, side ñoor portions extending outwardly
from said inner side portions, and outer side por 50
tions depending from said side ñoor portions and
each having an inwardly directed sti?fening flange
at its lower edge substantially in the plane of the
central floor portion.
4. A one piece underfrarne unit for mine cars 55
comprising, a central floor portion, inner side por
tions extending upwardly from said central floor
portion, side floor portions extending outwardly
from said inner side portions, and outer side por~
60 be needed.
tions depending from said side floor portions and 60
In a rigid mounted car the axle boxes may be each having an inwardly directed stiilening flange
attached directly to the flange I9, or if a lower ' at its lower edge substantially in the plane of the
type of car is desired, the axles may extend central floor portion to thereby form substantially
through the portions 6 and I4; however, in the
65 present case, which is purely illustrative, the
car has been mounted on springs. In order to
box section side members.
'
`
5. A one piece Yunderframe unit for mine cars 65
comprising, a central iioor portion, inner side por
provide suitable pedestals pressed members 60,
tions extending upwardly from said central floor
6I and 62 are secured to the ñange I I] at the
proper positions and have their lower surfaces in
70 a plane to receive the pedestal tie bar 64. Jour
portion, side iloor portions extending outwardly
nal boxes B6, having the customary ears and
each having an inwardly directed stiiîening iiange
at its lower edge, and means for retaining the
wearing surfaces, are engaged between thev
pressed plates and provide a mounting for the
axle 68 and springs 'IIL
,
'
.
'
The wheels W are housed within the semi-box
from said inner side portions, and outer side por
tions depending from said side ñoor portions and 701
inner and outer side portions and side floor por
tion in fixed position relative to each other, com
prising rigid elementslocated Vintermediate the 75":
2,131,420
end portions of the underframe unit and extend
ing between the inner and outer side portions and
connected thereto and to said side floor portions.
6. An underframe unit for mine cars compris
ing, a central floor portion, inner side portions
extending upwardly from said central floor por
tion, side ñoor portions extending outwardly from
said inner side portions, and outer side portions
~
3
recess, said end sill being of channel formation
with its `flanges interposed between and secured to
said stiffening flanges and side floor portions, and
an end deflector rising on a slope from said central
floor portion to the plane of said side floor por
tions and secured to said end sill.
11. In a mine car in combination, an under
frame unit comprising, a central floor portion hav
depending from said side ñoor portions and each
having an inwardly directed stiffening ñange at its
lower edge, means for retaining said side floor por
tions, inner and outer side portions and ñanges ‘
ing inner side portions extending upwardly there
from, outer side portions having inturned stiften 10
ing iianges at their lower edges, and side floor
in definite relation relative to each other com
tions, said inner side portions having a part there
prising rigid elements located intermediate the
end portions of the unit, certain of said elements
extending between the inner and outer side por
tions and being connected thereto and to the side
ñoor portions and ñanges and other of said ele
ments extending between the iianges and side ñoor
20 portions and being connected thereto and to the
outer side portions, and end sills to which the unit
is secured at its opposite end portions.
7. A one piece underframe unit for mine cars
comprising, a central floor portion, inner side por
25 tions extending upwardly from said central floor
portion, side iioor portions extending outwardly
from said inner side portions, and outer side por
tions depending from said side ñoor portions and
each having an inwardly directed stiffening flange
30 at its lower edge, said inner side portions having a
part thereof removed inwardly of the ends of the
side and central ñoor portions and adjacent at
least one end to provide a recess for an end sill.
8. A one piece underirame unit for mine cars
comprising, a central ñoor portion, inner side por
tions extending upwardly from said central ñoor
portion, side floor portions extending outwardly
from said inner side portions, and outer side por
tions depending from said side floor portions and
40 each having an inwardly directed stiffening flange
at its lower edge, said inner side portions having
a part thereof removed adjacent each end where
by said inner side portions terminate inwardly of
the ends of the side and central floor portions to
45 provide recesses for end sills.
9. A one piece underframe unit for mine cars
comprising, a central floor portion, inner side por
tions extending upwardly from said central ñoor
portion, side floor portions extending outwardly
from said inner side portions, and outer side por
tions depending from said side floor portions and
each having an inwardly directed stiffening ñange
at its lower edge, said inner side portions having a
part thereof removed adjacent at least one end
55 whereby said inner side portions terminate in
wardly of the ends of the side and central floor
portions to provide a recess for an end sill, an end
portions connecting said inner and outer side por
of removed adjacent at least one end to provide a
recess for an end sill, an end sill in said recess, 15
said end sill being of channel formation with out
wardly directed flanges overlapped by parts of
said central and side floor portions and stiffening
ñanges.
ì
12. In a mine car in combination, an under
20
frame unit comprising, a central floor portion
having inner side portions extending upwardly
therefrom, outer side portions having inturned
stiffening flanges rat their lower edges, and side
floor portions connecting said inner and outer side 25
portions, bracing means connecting said stiiïening
ñanges, side floor and outer side portions, and
spaced members secured to said stiffening ñanges
and deñning pedestal jaws therebetween tor re
30
ceive and guide journal boxes.
13. In a mine car in combination, an under
frame unit comprising, a central ñoor portion
having inner side portions extending upwardly
therefrom, outer side-portions having inturned
stiiïening flanges at their lower edges, and side 35
floor portions connecting said inner and outer
side portions, bracing means connecting said stiff
ening flanges, side iioor and outer side portions, a
pair of spaced pedestal forming members secured
to said stiffening flange, a journal box guided be 40
tween said members, and spring means inter
posed between said journal box and stiffening
flange; said bracing means being substantially
above said springs.
,
14. A iioor and frame structure for mine cars 45
of the low level type comprising a single metal
plate having a central depressed portion forming
a central lading body, longitudinal side portions
forming combined side lading bodies and wheel
housings, and longitudinal downwardly and in 50
wardly extending edge portions forming with the
side lading portions side sills of channel form of
a depth substantially equal to the depth of the de
pressed central portion.
15. A one piece underframe unit for mine cars 55
comprising a central iioor portion, inner side por
tions extending upwardly from said central floor
sill in said recess, said end sill being of channel portion, side floor portions extending outwardly
formation with its ñanges interposed between and `from said inner side portions, and outer side
portions depending from said side `floor portions 60
60 secured to said stiiîening iianges and side floor
and each having an inwardly directed stiiîening
portions.
10. A one piece underframe unit for mine cars flange at its lower edge whereby the side portions
of said unit are substantially bo-x sections, and
comprising, a central floor portion, inner side por
tions extending upwardly from said central iioor means for retaining the box-section portions in
definite fixed relation comprising rigid elements 65
65 portion, side ñoor portions extending outwardly located intermediate the end portions of the un
from said inner side portions, and outer side por
tions depending from said side floor portions and derframe unit and extending between the inner
each having an inwardly directed stiiîening flange and outer side portions and connected thereto
at its lower edge, said inner side portions having'a and to said flanges and to said side floor portions.
70
70 part thereof removed adjacent at least one end to
WARREN V. JOHNSON.
provide a recess for an end sill, an end sill in said
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