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Патент USA US2406546

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Aug» 27, 1946-'
’ Filed Jan. 5, 1944-
7 sheets-sheet 1
Aug._ 27, 1946.
Y Sheets-Sheet 2
Filed Jan. 5, 1944
Selva/nef Kinney
¿$13.34. HaTíWiCk
Au‘g. 27, 1946.
Filed Jan. 5, 1944
‘7 Sheets-Sheet 4
56214131726B _Kirmey
_Louis M HartwIl
Aug» 27, 1945`
s. P. KlNNl-:Y ET AL
Filed Jan. '5, 1944
7 sheets-sheet 5
Se ZwynePJfinney
_Louis MHarzwz'ck
Aug- 27, 1946'
7 sheets-sheet e i
Filed Jan. 5, 1_944
,Se Zugm el). Kinn ey
_Louis MHartWidc
Patented Aug. 27, 1946
Selwyne P. Kinney, Grafton, and Louis M. Hart
wick,'Beaver, Pa., assignors, by mesne assign
ments, to S. P. Kinney Engineers, Inc., 'Pitts
burgh,‘Pa., a corporation of Pennsylvania
Application January 5, 1944, Serial No. 517,040 v
9 ` Claims.
(C1. 26E-8)
This invention pertains to a car unloadingde
vice and is for an apparatus for the unloadingr
of bulk material from hopper cars or like con
tainers. It has been especially developed for the
unloading of iron ore from hopper cars, and it
will be hereinafter described in that connection,
but it may be likewise used for the unloading of
other materials Where similar conditions are en
Iron ore is usually in a iinely divided condi
tion. It tends to pack -into a very dense mass,
and this packing is aggravated in the long haul
ing of the ore in a railroad car from the place
positions in the car. Additionally, the ram. de
vice is preferably providedfwith a rotatable work- `
ing end with mechanism for rotating vthe work
ling end so as to drill or dig down into thema
terial in the car. Moreover, the present inven
tion contemplates that the implement in the
Working end may from time to time be changed
according to the material in the car.
The implement is under the control 'of an'op
erator, positioned ina cage on the crane. 'Thus
the operator can move the crane and manipulate
the unloading device and because of his elevated
vantage point, is enabled to see and plan the op
of the implement.
Where it is loaded to the place where it is to be . eration
In the accompanying drawings which ‘illus- '
unloaded. The packing is also aggravated by 'f1
trate one embodiment of my invention,
the presence of moisture, and this is especially
Figure 1 is an end View showing more orless
so in cold weather when the moisture freezes.
schematically the trackway, the position of the
As a result of this packing and the extreme
car to be unloaded, the runway for the crane, and
reluctance of the material to flow, it is diilicult
the unloading device depending from the trolley
to discharge it from the hopper cars in which it -
is shipped.
The present methods require the
services of a crew of laborers who haveto get into
the car and work with picks and crowbars to dis
lodge the ore. This is not onlyvery hard work,
and disagreeable work, but consumes consider
able time and is expensive.
The present invention provides an implementv
of the crane.
The implement is shown in a po
sition where it is projected Well down into the
Figure 2 is a top plan view of the arrangement
shown in Figure 1;
Figure 3 is a side elevation, the View being at
right angles to Figure 2; .
Figure 4 is a detail view similar to Figure
carried from an overhead crane which may be
l, showing a lesser portion of the crane and show
manipulated to all the necessary angles and con
ing in dotted lines the retracted position of the
ditions in the car to accomplish the unloading of 30
implement where it is clear of the car;
the ore or other material. The unloading 0p
Figure 5 is a detail View showing the drive
eration can. with the use o-f this mechanism, be
through which the axial movement is imparted
substantially entirely performed by one operator,
conserving Vboth man power and time.
According to the present invention, there is
provided along the >trackway where the car is to
be unloaded, which is usually anl elevated track
way or trestle, an overhead crane, lthe runway
for which is parallel with the tracks along which
the car moves. 'Movable back and'forth on the
traveling crane is a trolley or carriage. This
trolley or carriage supports a ram or like imple
ment, and mechanism on the carriage is pro
vided for moving the ram up and down, i. e., lon
gitudinally of its axis. Other mechanism is pro
vided for swinging the implement in a direction
fore and aft of the car from a vertical position.
to the implement and also showing a portion of
the implement through which the tilting ofthe
implement is effected, the view being a trans
verse plane of line 5-5 of Figure 6;
Figure 6 is a longitudinal section on a larger
scale of the implement showing a portion of the
gearing through which the implement is raised
and lowered, and also showing the gearingy
through which the tilting is accomplished, the
View also sho-wing the drive by means of which
the operating element at the end of the imple
ment may be rotated;
Thus the implement can be operated vertically
line l--l of Figure 5;
or inclined in either a fore or ait direction. It
may be elevated and rammed down into the ma
terial in the car. By movement of the trolley
the implement;
crosswise of the track, the'implement can be
moved transversely across the full width of the
car. Thus the body of material in the car can
be attacked from all necessary angles and at all .
Figure 'l is a vertical transverse section at right
angles to Figure 6, the view being in the plane of
Figure 8 is a fragmentary view showing the rack
and pinion drive for extending and retracting
Figurev 9 is a fragmentary View of the lower
end ofthe unloading device showing the use of
an air hammer at the end of the ram in lieu of
the spiral tool shown, for example, in Figure 6;
Figure 10 is a detail View at right angles to
shaft 24. In Figure 6, the tool 36 is illustrated
Figure 9, showing the connection at the lower
as comprising an auger-like implement. To dis
end of the ram device for securing the digging
tool in place, and
Figure 1l is a side elevation of a-space-like dig- . Cil
ging tool which can be substituted in lieu of the
Y' tool shown in Figures 6 and 9;
Figure 12 is an elevation of Va modiñed form
of ram;
" Figure 1:3 is a longitudinalsection through the
ram of Figure 12.
Figure 14 is a transverse section in the plane
of line XIV-XIV of Figure 12; .
connect the implement 36 and substitute another
tool, it is merely necessary'to remove thedrive
The pinion 29 is keyed to the,y shaft I9. As
shown in Figure 8, the outer end of the shaft I9
is provided with a gear 31. The trunnion I2 has a
« reduced extension I2a on which is a sleeve 38, ,
which sleeve is provided with aV gear 39 that
meshes with the pinion 31. The sleeve'38 is also
provided with a sprocket wheel 40, The sprocket
wheel 4I), as best showninFigures 2 and 4, is en
Figure 15 is a transverse section similar to Fig
gaged by a chain 4I, which chain also passes
1 .ure 5, showing the drive-for themodiñed formfof 15 around a sprocket .wheel 42 on the end of the
In the drawings, 2 designates a railroad track,
along which the car diagrammatically indicated
shaft ofA driving motor 43, which motor is hung
' in a frame44 -on the trolley of the crane.
motor 43 is a reversible motor, and by driving it
at C travels. Normally, this trackway is elevated,
in one direction or the other, motion is trans
0r is aV trestle, `so that the material which is un 20 mitted. to the gear wheel 2e 'that engages the
f loadedcan fall to a receiving space below._ *Ac-v
_rack ontheram I1 Yfo;` moving'the rack in `one
~ _ cording 'to the present invention, there lis pro
_vided a structure 3having rails 4 extendingpar
allel'with the trackway along whichis movable
a crane 5. This crane is in general similar to a
usual traveling crane structure, being provided
with longitudinal frame members E and trans
verse frame. members 1. It is provided with a de
pending operator’s cab _8. ' The cross members 1
provide a runway for aitrolley 9.
direction longitudinally, or the other.y
_, .
It will be notedthat because the plates I3 and
I3' which carry the ram are supported on trun- .
nions, that the ram can swing the directionfore
and aft of the car C away from a vertical posi
tion. As shown in Figures 3 andfl, the ram can
swing to a position 45° more or less each side of
vertical. -Because of the fact that the sprocket
30 39 is concentric about the'axis on which the ram
f Suspended from the _ trolley ' is a structura
swings and the gear 31> is in the relation of a `
frame lûlsee' Figure l) , having bearings II there- "
blanket to the gear 39 associated with the sprock
on, which bearings, as shown in Figure 7, provide
et, it is possible to have the driving motor, which
supports for trunnions I2and I2’. Trunnion I2 is
is preferably a motor capable of developing con
provided with a plate I,3,‘and trunnion I2' is car
siderable power, ñxed on the trolley, notwith
ried onV a plate I3’. These two plates are of the
standing the fact that the ram itself can swing
shape shown in Figure 6 and they are joined to
to dilferent angular positions. In other words,
gether by a transverse member I3a (see Figure
the arrangement of the gear which has been .de
6), and by a housing structure I3b. The plates
scribed enables the motor for moving the rack
I 3 and I 3' are provided with two pins I4, on'which 40 back and forth, to be in a fixed location whilethe
are flanged rollers l5. The ñanged rollers I5
ram itself is capable of swinging in an'arc.
provide guides forv a reciprocable ram I1, which
As shown in Figures 5 and 6, the plate I3a
ramiis of tubular construction of squared cross
which connects the two segment shaped plates I3
section, 'as best shown in Figure 5, and which is
and I 3' is provided with an arcuate rack 45,'> This
assembled from two channels I1' turned toward 45 rack is _engaged by a pinion 4B on a shaft 41. As
each other and connected by plates I1a land I1b.
shown in Figure 3, the` shaft 41 is hung from a
ï- v The plate I1b opposite therollers I5 is provided
bracket `48 on the trolley, and it'is provided with
with a longitudinally extending rack Ill.V Trans
a sprocket wheel 49. A sprocket chain 50, pass
verse shaft I9, supported in the plates I3 and I3’,`
ingv around the wheel 49, also passes around
is provided rwith a pinion 20 that Ymeshes 'with 50 sprocket wheel 5I on a shaft 52 mounted on a
the rack I8, and the pinion 29 serves to hold the
depending part of the trolley frame. Shaft 52 in
ram in position against the guide rollers I5, in
turn is provided with a second sprocket wheel '53
addition to providing a means for an effecting
of larger diameter, around which passes a sprock
longitudinal movement ofthe ram. ,
et chain 54 that engages also a sprocket gear 55
. YAt. the-lower end of the `tube I1 is'a bearing` 55 on the shaft‘of the driving motor 56. The driving
structure 2|, and at the top of the tube I1 is a
motor 56 is also fixed on the trolley frame andit
plate 22 that carries a bearing structure 23. A
` _ longitudinally yextending shaft 24 concentrically>
Y is also a reversible motor.
By driving it in one
direction or the other, the pinion 4B can be turned
positioned in the tube I1 is engaged in the bear-v
in one direction or the other to move the rack 45
_ings 2| andi23. At the upper end of the shaft 24 «60 up orldown, and thereby tilt or rock the ram one
is a gear\25 which meshes with a smaller pinion direction or the other from a vertical position.
V2Ii,_which pinion is on _a studshaft 21 and is
coupled with a larger pinion`28 which, in turn,
is engaged _by pinion 29 on the end of the shaft
39 of va driving motor 31|. Operation of the driv
ing motor>3| serves to rotate the shaft 2_4, the
train of gearing constituting a reducing'gear.
The lower end of the shaft 24, where it passes
through the bearing 2|, is provided with a sleeve
32, which sleeve has a downwardly extending
flange forming a socket 33.
The walls of this
socket are provided with key slots so thatby
means of a removable transverse key 34, the
_ shank 35_-of an appropriate tool or implement 3_6 j
can'be attached to the lower end of the rotatable
With the parts in the position shown in Figure _6,
the ram is vertical, and the gear 4B is engaged
in thefcentral point of the arcuate rack 45. _
Thus it will be seen that the motor which serves
to tilt the ram, as well as the motor which serves
to move the ram up and down, is in a ñXed posi
tion on the trolley frame. The only motor which
is movableV with the ramV is the motor 3l that
serves to rotate the tool at the lower end of the
In the operationiof the unloading device, the`
car C is brought to the position on _the track .
where it is to be unloaded. The ram is runback
to its uppermost position, which is approximately
^ 2,406,546
be moved back and forth `crosswise> of thecar, -as
well as back and forth lengthwise vofthe car. rlí’he
the dotted line position shown in Figure 4. The `
crane is -then maneuvered into lposition over the
car. The operator in the cage 8 isable ‘_toï clearly
see the ramv and follow its operations. When
construction of the ram is‘such >as to withstand
abusive use, and considerable advantage is ygained'
from the fact that of the three motors used'for
manipulating the ram and turning the bit, ronly
the crane has been moVed into the ldesired posi- k
tion and the doors on the hopper Acar have been
the ram itself. , The> Aarrange
' one of them is on
opened, the motor 3| may be set .into operation
and the ram may be driven at slow or high speed,
as conditions may dictate, and as the operator
ment whereby the motor 43 Vcan be at a fixed loca
tion on the trolley while the pinion which it drives
to Yengage the rack can move about -in' various
positions, is particularly advantageous.
In some cases,the teeth of the rack may tend
may determine upon, into the ore in the car, It
will serve to push the ore out of the car and to
drill through the ore, loosening it up. It can be
projected into the ore at various angles and by
moving the trolley back and forth on the carriage
of the train, it can work at the middle of the car
, to clog with ore or
other material being vworked
upon. To avoid this, and assure of the smooth
operation of the ram, the modiñcation shown' in
orat'any other placeacross the full width of the
car. After it unloads the ore at one end of the
car, the crane can be moved ‘along to work upon
the ore at the other end or at any intermediate
Figures 12 to 15 may be employed.
1 f=
In this modification, the bodyy f the ram com
15 of l heavy wall thickness
prises a metal tube
with corner angles 11i> welded thereto and extend
ing therealong throughout substantially the en
position, and the slope at which the ram works 20 tire length thereof, these angles being positioned
can be constantly varied. -A skillful operator can
90° apart. (See Figure 1li.)` Secured to'two-of
quickly learn to shift the ram and manipulate
these angles 15 are angularrails 11 having a base
the crane to good advantage t0 rapidly unloadthe
flange 11a and an upstanding rib or flange-11b.
car. The ram may be moved with considerable
Equally spaced round bars or rungs 18 passing .
rapidity in order to strike a
blow, or it may be . ,
moved slowly, this all being under control of the
In many instances, it may be desirable, in place
of using an auger-like bit on the end of the ram
through the flanges 11b provide arack of ladders
' like construction.
`'I'he ram is mounted, guided, and operatediin a
manner generally similar to Figure »5, except that
in Figures 3 and l1. In these views, the bit is
designated 36’. It can be substituted for the bit
two sprocket wheels 19 >on a shaft 80 engage the
The shaft 80 4also '
has rollers 8! thereon which roll on the flanges
11a of the bars 11 to take the thrust, so ~that the
36, as previously indicated, merely by removing
sprocket wheels work freely and withouttrans
to use a spade or a chisel-like -bit such asshown 30 rungs or rounds of the rack.
the drive key 34; Also, particularly when the ore
verse thrust on the ladder-like rack, ‘Shaftßß
is frozen, it may be desirable to use a pneumatic 35 corresponds otherwise to shaft I9 of Figure 5„an’d
hammer on the lower end of the ram. This is
the other parts are substantially »the same.
illustrated in Figure 9 where the pneumatic `ham
Any material that packs in the rack may be
mer 50 is provided at its upper end with an adapt
dislodged and fall out of the rack or escape be
er 6l having a portion 62 that ñts in the socket
tween the two sprocket wheels 19, uso that this
33 and is engaged by the drive key 34. The lower 40 mechanism> is substantially self-cleaning.
end of the air hammer may have a suitable bit
It will be understood that my invention pro
53. The bit 53, forced by the air hammer, may
vides various other features of novelty which have
be forced down into the ore under heavy pres
not been herein specifically mentioned, and'that
sure by the hammer, and at the >same time the air 45 the drawings illustrate one embodiment of'my
invention, but that the inventions maybe other
hammer 3| may be driven to slowly turn the en
wise embodied and that various changes and
tire air hammer to diiferent positions, and of `
course the slope of the ram may bechanged from
modifications may be made within the construc
tion ofmy invention and under the scope of the
time to time, as required.
ì ‘ It should be noted in connection with `Figure l
following claims.
that the crane is provided with keeper elements 50
We claim:
1. A car unloader comprising an overhead
5’ that engage under the top flanges of the I-beam
trackway and a traveling crane, structure mov
rails 4. These are for the purpose _of preventing
able along the trackvvayV in a direction n parallel
the crane carriage from lifting off the rails when
with the longitudinal axis of thecar-to lbe un
the ram encounters considerable resistance. '
Usually there is a string of several cars to be
unloaded and after one car has been finished, the
crane can move to the next. It is also contem
plated that the operator, by astute use of the ram, .
may actually move an empty car along the track- i 60
loaded, a trolley on the` traveling crane struc
ture movable crossways thereo'ffandV a ram on
the trolley movable'in an axial direction, means
for so moving the ram, and means for swinging
the ram in an .are generally lengthwiseof the
way, should this be necessary. It will be noted
from Figure 2 that the cage is located forwardly
of the carriage as well as being at one side of the
hung from the trolley, said means for’operating
the ram comprising a gear on the frame, ythe axis
carriage, The purpose of this is to enable the
of rotation of which coincides with the axis about ~
trolley which carries the ram to move clear over
to one side of the carriage of the crane where it
car, the ram being carried in a rocking frame
which the ram pivots, a pinion driven by said
gear, there being a rack element on the ram‘with
will be in line with the operator’s cage, and where
which the pinion engages.
it will be entirely out of the way `of any locomo
2. A car unloader comprising an overhead
tive that has to pass under the crane in the opera
trackway and a traveling crane structure mov
tion of bringing cars into place, or removing 70 able along the trackway in a direction parallel
with the longitudinal axis of the carto be un
The unloading device as herein described, pro
loaded, a trolley on the traveling crane structure
vides a powerful and effective means for unload
movable crossways thereof, and a ram on the
ing material such as ore. As above indicated,
trolley movable in an axial direction, means »for
it can operate at various angles from a vertical
so moving the ram, and means for swinging the
position in a fore and aft direction, and it can
ram. in z an Íarc «generally
lengthwise of the car',
6; Car„unloading“4 apparatus QfÄ'the? dass AYde'
the" ram :being carried in arookingframe hung
from the trolley, said means -for .operating the
ram comprising’a gear ’on‘the Vframe, .the >axis of
scribed »comprising a' traveling crane 'structure'
movable' longitudinally of the car to be unloaded,
whichlthe pinion engages, said rack comprising a
a trolley on the Vcrane movable transversely of
the car, va frame on the trolley pivotally sup
ported to rock in a plane parallel with the direc
tion of travel of .the crane, motor means for
Í 3;» A"‘carf:unloader comprising an overhead
digger releasably held in the adapter, said digger
Y lrotation of 'which
coincides Vwith the axis about
which’the ram'fpivots, a pinion driven byî said
gear, there ' being Ya rack‘element on the raml with '
rocking thev frame, ‘a ram carried by the frame,
lad’derélikev series ofY spaced Vrungs on the ram,
the:v pinion having `sprocket teethk tor mesh with 10 means for moving the ram'in an axial direction,
' l
an adapter on the lower end ofthe ram, and a
trackway'and a'traveling crane structure mov- ,
including an air hammer. '
ableialong the ?trackway in a direction parallel
f 7; A` car unloader _of the'class described com
prising a ram having a .digging tool on the lower
withft'he longitudinal axis of the car to be un
» n
movable? crossways-thereof,1and a ram onr‘the
end thereof, means'from whichY the ram, is su‘spended .and in which the-ram isV axially movable
>trolleyrnovablein an axial direction, means for
. but fixed against wrotation, ysaid means being
ram comprising afgearïon the frame, the axis
ed,-and lseparate power driven means for force
fully swinging the ram in an arc ina direction
fore and aft ofthe car for shoveling the contents
thereof either simultaneously with or separately
loaded, a trolley on the'traveling crane structure
movable >longitudinally of `the car-:to be un
so 'movingv ther ramfand means for swinging the
ram `in- an arc Vgenerally‘lengthwise of the car, 20 loaded yand ’alsotransversely thereof, means for
positively drìving'the-ram. up and down' with
the ram/fbeingf .carried> in- ai rocking frame `hung
reference to the means from which it is suspend
from ’the trolley,-said >means' for operating the
of rotation of'which coincides with' the axisabout
Av_‘vhichtthe' ram pivots, aA pinion driven by said 25
gear, there ‘being aï-ra'ck element `on the‘ram
withwhich the pinion engages, said rack 'com- '
prising-fa'îfladder-likeseries of" spaced rungs on
tlie- ram?! the @pinion having sprocket'teeth to
from said ypositively driven ram driving member. f Y
8. Car unloading apparatus of the class> de- '
scribed' comprising V"a, traveling Vcran'estructure
-movable longitudinally'of the `carto be unloaded,
meshVV with _ said» runlgs', "said `pinion "comprising 30 a trolleyv
on` the crane"»movable transversely of
spaced teeth with sprocket teeth thereonïthat
thefcar, "a frame `on'the trolley pivotally‘s'up-k
Vported on the trolley toï rock Aon an axis trans
e verse to the direction of Vtravel- of the trolley
‘ '4.'1In‘l aÍ car Yunloader of the class described, a
y*in'g’a'"trubunlz'tr, body having longitu
dinally -extending’angle bars secured thereto at
90°Y-intervals» thereabout withV the vapexes oflthe
' angles turned outwardly, two of said angle bars
whereby'the frame may swing in the direction
ofthe longitudinal axis of thecar, motor-driven
means andgearing for rocking the frame vin an
arc fore and aft of the car for shoveling the con-`
havingY ribs thereon, there being spaced rungs
>tents thereof, an agitator movable axially in the
frame andV comprising an elongated rigid ram
ì forming av ladder-like rack carried by the ribs,` a
frame structure‘through which the ram passes,
a pinionand rollerelement in the structure en 40 element, and other reversible power driven means
for operating the agitator'to move axially'in ther
gaging’said rack, a shaft for the' pinion vand
frame' either" simultaneously kwith or> separately>
roller' velement,-_means constituting trunnions Ífor
thefrarne structure; a roller in the structure op
posite the pinion engaging bars’on the ram op
posite those which carry the rack, a trolley in
which said trunnions `are supported, means for
tilting said structure, and means for driving said
-shaft‘including a gear, the axis of .which coin
cides with the axis of the trunnions.V
f I
5.,Car unloading apparatus of the classlde
scribed comprising a- traveling crane structure
a trolley on the'crane 'movable transverselyiof
the car, a frame on the trolley pivotally'sup
movav le’longitudinally ofthe carto be unloaded,
ra` trolleyV` on` the crane
from _said rocking movement of saidframe.
'-9. Car unloading apparatus ofthe fclass de
scribed comprising >a traveling' crane'structure
Ymovable longitudinally of the car to be unloaded,
movable transverselyïof
the cargfaî frame on the trolleyipivotally sup
ported- to rock in a plane parallel with the direc- '
tion of.'V travel of Vthe crane, motorY means and
gearing for rocking the frame, a ram carried
by the frame, reversible power-driven means for
positivelyzmoving the ram in an axial direction
either--up'or down, whereby the ram may be si
ported to rockin a plane parallel with the direc-y
multaneously reciprocated »and swung in an arc
tion of travel of the‘crane, motor -means for
to simultaneously penetratethe material’ to be
~ rocking the frame, >a ram with a diggerthereon
carried by the frame,
and means for moving the `
ram ’in Van axial direction, said means for -mov
ing the digger including a drive gear coincident 6ov
withthe axis about which the'frame swings. ;
unloaded and ~ shovey such material longitudi- '
nally, an adapter on the lower end of the ram,
and a digger'releasably held in the adapter.
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