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Патент USA US3082896

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March 26, 1963
~
H. EICHLER
3,082,888
VEHICULAR TIPPLER
Filed July 19, 1960
5 Sheets-Sheet 1
March 26, 1963 v
H. EICHLER
3,082,888
VEHICULAR TIPPLER
Filed July 19, 1960
5 Sheets—5heet 2
HI
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7 {v
/
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.
Herbe'rlt Eichler
INVENTOR.
March 26, 1963
H. EICHLER
3,082,888
VEHICULAR TIPPLER
Filed July 19. 1960
5 Sheets-Sheet 3
March 26, 1963
"H. EICHLER
3,082,888
VEHICULAR TIPPLER
Filed July 19. 1960
5 Sheets-Sheet 4
INVENTOR:
Herber’r Eichler
March 26, 1963
H. EICHLER
3,082,888
VEHICULAR TIPPLER
Filed July 19, 1960
' 5 Sheets-Sheet s
obOTMHI
INVENTOR.
Herbert Eichler
3,982,888
United States Patent 0 "ice
Patented Mar. 26, 1963
1
2
3,982,888
to the motion of the angular portion of the tippler. Con
versely, the tilting mechanism may be so interlocked with
VEIHCULAR TLPPLER
the clamping means as to prevent any rotation of the
tippler beyond a safe angle of tilt until the car is secured.
Herbert Eichler, Leipzig, Germany, assignor to VEB
Schwermaschinenhan S. M. Kirow, Leipzig, Germany,
The above and other objects, features and advantages
a corporation of Germany
of my present invention will become more readily ap
Filed July 19, 1960, Ser. No. 43,776
parent from the following speci?c description of a rotary
tippler, reference being made to the accompanying draw
ing in which:
My present invention relates to dumpers, such as rotary
FIG. 1 is a top-plan view of the tippler;
tipplers and side dumpers, for freight vehicles such as 10
FIG. 2 is a cross-sectional view taken along line
open-top railroad cars.
II—II of FIG. 1;
'
In railroad-car tipplers employed heretofore, an open
13 (Ilaims.
(Q1. 214-55)
‘
FIG. 3 is a cross-sectional view taken along line
top car (e.g. coal, ore, mine or hopper car) was seized
between two movable walls which were urged against the
IH~—III of FIG. 2;
sides of the car by hydraulic pistons. When the tippler 15
FIG. 4'is a view similar to FIG. 3 showing the car
was rotated the entire weight of the car and its contents
rested on ‘one of the movable walls, thereby transmitting
thereof engaged by the walls and clamping members of
an increase in pressure throughout the hydraulic system.
FIG. 5 is a schematic diagram of a hydraulic control
the tippler;
'
system for the tippler; and
' The components of the hydraulic system had to be de
'
FIG. 6 is a diagram of an electrical actuating circuit
signed to ‘withstand the increase in pressure and, there 20
for the control system of FIG. 5.
'
fore, were relatively expensive, while the walls could
In FIGS. 1—4 I show a rotary tippler 4t) positioned
be safely used only with straight-walled cars.
in a pit 260' along a line of railway track 42 whereby an
Other rotary tipplers and side-dumping devices made
open-top railway car may enter and leave the tippler 40.
use of jaw clamps and similar locking members to secure
the cars while they were tilted to one side or rotated for 25 A car of this type is shown in cross-section at 1 in FIGS.
emptying. The clamps and locking members were usually
complex and costly to maintain and, frequently, were not
3 and 4. The tippler 49' comprises a cage 41 consisting
essentially of a base 55, inverted L-shaped uprights 41a,
U-shaped upright 41b, a ring 43 at its entrance and a ring
adaptable to outsized railroad cars.
It is an object of the present invention to provide an
45 at its exit end. Ring 43 is circumferentially supported
and rotatably displaceable, along with the rest of cage
41, on a plurality of rollers 44, journaled in a support
structure 46 below ground level, which engage the ring
43 along its periphery. Similarly, ring 45 is supported
improved railroad-car tippler adapted to dump open-top
cars of virtually ‘any size or shape.
It is another object of my invention to provide a rotary
tippler for railroad cars which is adapted to operate at
relatively high speeds with a minimum of maintenance.
It is still another object of the invention to provide an
improved automatic control system for a railroad-car
35
dumper.
by rollers 47 which are journaled in a support structure
4-8. A ring gear 49‘ is secured to the ring 45 and is in
mesh with the pinion gear 50 of a drive motor 51, adapted
to rotate the tippler reversibly from its normal upright
position to its dump position. A pair of longitudinal
According to a feature of the invention, a railroad-car
tippler or dumper comprises a movable tiltable unit, gen 40 girders 41c, 41c’ interconnect the rings 43, 45 and the
erally in the shape of a cage, including a platform pro
uprights 41a, 41!).
vided with track-s alignable with the tracks of a siding or
A car platform .3, in cage 4-1, is provided with a pair
of rails 2 which are aligned with the external rails 42
the like and adapted to carry the open~top car. The plat
when the tippler is in its untilted position; this platform is
form is displaceable along the bottom of the cage in a
direction transverse to the rails whereby one of the longi 45 displaceable in a direction transverse to the axis of the
tippler upon a pair of rollers 54 journaled in the base 55
tudinal sides of the car carried thereon may be brought
'of the cage 41. Only the topmost portion of each roller
into contact with a ?rst wall rigid with the cage while 'a
54 protrudes through the ?oor 5160f the base 55 to en
second 'wall, opposite the ?rst wall and transversely mov
able with respect thereto, is brought into contact with the
gage the bottom of platform 3. A hydraulic cylinder 7
other longitudinal side of the car. This unit is then ro
tated about a horizontal axis so that the weight of the
car and its contents rests on its ?xed wall which may be
is secured to the base 55 at \57 and has a‘ piston 7a which
is ai?xed to the platform 3 whereby the latter may be
displaced so that the car 1, carried on the platform 3, may
be drawn against a wall 8 which is rigid with the base
55 and thus forms an integral part of the cage 41, and is
suitably reinforced to carry the load.
-
According to another feature of the present invention,
I provide each of the walls with clamping members which 55 constituted by the vertical positions of the uprights 41a,
41b and a lattice of longitudinal bars 8:: and 8b (best
are displaceable thereon into engagement with the upper
edges of the car whereby the latter may be secured as the .
' seen in FIG. 2).
tippler rotates through car-tilting angles in excess of 90°.
. Opposite the ?xed wall 8, on the other side of plat
The tippler may accommodate cars of any width between
its movable wall and its ?xed wall, and of any height be
form 3, I provide a movable wall consisting of two longi
tudinally spaced sections 11 each comprising a central
external ?ange 59 and a pair of slotted uprights 63 rising
tween the platform and the clamping members. The
latter may be elongated bars which are maintained parallel
to the edges of the car as they are displaced into engage
ment therewith.
V
from a horizontal beam 62. A pair of link bars 10 are
provided on each side of each ?ange 59,.the bars 10 be
ing individually pivoted thereto at 60. The other ex
A more speci?c feature of the invention resides inthe 65 tremity of each bar 10 is pivoted at 61 to one of two
provision of hydraulic working cylinders, fed by one or
more motor-driven ?uid-pressure pumps, for the purpose
of displacing the tiltable unit as a whole, its movable
wall and the clamping members ill-response to the se_
extensions 55a of base 55,‘ thereby forming a parallelo
grammatic linkage between the movable wall sections 11
and the base which maintains these sections parallel to
the opposing wall 8 as the sections are displaced toward
quential actuation of regulating valves ‘which may be 70 car 1 which is positioned on platform 3 between the mov
able and stationary walls of cage 41. Two hydraulic
operated manually or by automatic valve-control ap
cylinders 9, rigidly secured to the base portions 55a, have
paratus preferably including follower means responsive
1
'
'
~
3,082,888
3
4
pistons 9a (FIG. 5) which bear upon their respective
system ltil, will make one complete revolution for each
forward and return stroke of the tippler 40.
In operation, switch 102, which may be operated manu
wall sections ‘11 in order to displace them parallel to
themselves. Pistons 9a are secured to the ?anges 59 via
respective ball joints.
ally when a laden open-top car 1 has entered the tippler
40 or which may be tripped by the car itself, is closed,
thus completing a circuit through the coil of a relay 103
to close the switches 163a, 1031;, 1030 of that relay.
A clamping member in the form of a bar 14 is carried
by two longitudinally spaced brackets 13 which are guided
in ‘the slots 68 before the respective uprights 63 for each
wall section 11.
The brackets 13 are pivoted to respec
Switch 103a closes a circuit which includes an A.-C.
source ‘121 to activate the leader-follower synch'ro net
tive lever arms64 at one extremity thereof. Hydraulic
cylinders '12, hingedly connected to the ‘beam 62, have 10 work 97 and 98 while switch 10311 activates the motor 70
pistons 12a which are pivoted to the other extremities of
the two levers 64 of each section 11. Each lever 64 is
articulated at a point 66, intermediate its extremities, to a
link 67 which is also hingedly connected to the beam 62
which drives the hydraulic pump 71 and switch 1030
closes a circuit through switch 104a, operated by cam disc
100e, to the motor 51 which drives the tippler. Switch
162 must be held closed for a ‘period sufficient to permit
whereby the simultaneous advance of the pistons 12a 15 the rotation of the tippler and the simultaneous displace
will lower the clamping bar 14 while maintaining it
ment of the cam shaft whereby cam disc 1001) may close
parallel to the edge of the car 1.
'
a switch 10711 which establishes a circuit through a hold~
A similar pair of clamping bars 14' are vertically dis
placeable along the stationary wall 8. Their brackets 13'
are guided'in the-slotted uprights 41a of the stationary
wall while their hydraulic cylinders 12' and, their links
67’ are hingedly connected to the base 55. The pistons
12a’ of cylinders 12’ bear upon levers 64’ which are
ing coil 109 to maintain the switch 102 in its closed posi
tion until. the completion of the tippler cycle. The cir
cuit of motor 51 also'includes the normally closed switch
122a of a time-delay relay 122, whose coil is energized
- via the series~connected, normally closed contact switches
120,, 12%’ carried by the clamping bars 14, 14’, respec
articulated to links 67’ so that the bars 14' operate
tively. A cycle-cut-off switch 130 is in series with coil 10-9.
analogously to the bars .14.
25
'The tippler-control system ‘shown in FIGS. 5 and 6 ' 7
Concurrently with the actuation of motor 51, hydraulic
?uid under pressure from pump 71 flows via valve 75
through conduit 33 to the valve 76 whence it is transmitted
comprises a gear-type pressure pump 71, driven by an
electric motor 70, which siphons ?uid from a reservoir
to the hydraulic cylinders 7 and 9 by way of tube 84.
72 and feeds a control valve 75 whose shiftable piston is
A ?uid-return path from these cylinders to the reservoir
connected to a solenoid 75a, adapted toactuate the valve. 30 '72 is established by way of conduit 85, valve ‘76 and
A pressure-regulating safety valve 73 is connected be
tube 86. The platform 3 carrying the car 1 is thus dis
tween the outlet of pump 71 and a return transmission
placed until a side of the car encounters the ‘?xed wall
8 and the movable wall sections 11 are displaced until
tube 74 which empties into the reservoir 72. The valve
75' acts as a terminus‘for a high-pressure transmission
they abut the other longitudinal side of the car. After
line 81 which is provided with a check valve 82'to pre 35 sufficient time to insure the clamping of the car 1 between
vent reverse flow, and for a ?uid conduit 83 which termi
the movable and the stationary wall, cam disc 100a closes
nates in a valve 76; the ‘latter valve, having an actuating
a switch ‘108 which energizes solenoid 75a to pressurize
solenoid 76a, serves to distribute the ?uid from this con
the v?uid-transmission line 81 while cam disc 10% closes
duit to two outlet tubes 84 and 85. Another conduit 86
a switch 14%6'11 to complete a circuit through one winding
connects the valve 76 with the return tube 74. The high
of solenoid 76a,’ thus blocking the tubes 84'and 85 which
pressure line 81 feeds two identical’ valves 77 and 77'
terminate in valve 76 to ‘lock the pistons 9d and 7a.
which are actuated by solenoids 77a and 77a’ respectively.
At the same time, cam 'disc 163a‘ closes switch 155a
Each valve 77, 77-’ .is the terminus for a respective tube
to energize the solenoids 77a, 77a‘ which thereupon per
89, 89' which may be selectively connected with its high
mits a pressurized ?ow of ?uid through the valves 77, 77'
pressure inlet '87, 87' or with a return tube 88, 88' con
45 to the cylinders 12, '12’, while ?uid ?ows from the cyl
nected with the return tube 74. Tube 89 feeds the hy
draulicrcylinders 12 behind their pistons 12a via shut~o? .
' valves 16 whereas tube 89' feeds the cylinders 12' behind.
their pistons 12a’ via shut-off valves 16'. The cylinders
inders to the reservoir 72 via, tubes 91, 91' and 88, 88’
so that the clamping bars 14, 14’..are brought into en
gagement with the upper edge ofthe car 1. In series
with solenoids 77a, 770', however, I provide a pair of
12 and v1?.’ are provided with return-?ow tubes 91, 91’ 50 switches 1-10, 110' which are respectively carried by the
and regulatable check valves 92, 92i~’,rrespectively, along 7 movable wall 11 and the stationary wall‘k8 and which
these tubes.v
.
The tube 84 is connected to. the cylinder 9 behind its.
piston 9a and tothe cylinder 7 in front of its piston 7a
while the tube 85 is connected to the cylinder 9 viara regu 55
latable check valve 93 and a throttle valve 94 in front of
the piston 9a .and to the cylinder 7 rearwardly of its
piston 7a via a regulating check valve 95.
'
close only when both walls engage the car so that the
clamping ‘bars 14, 14' are operative only when the two
walls contact the'car.
‘
A
When cylinders 12, 12’ are pressurized via tubesS9, 89',
the check valves 92 and 92' block the tubes 91 and 91',
respectively. The valves 92 and 92' also operate to
permit only a limited flow of fluid under pressure to the
The electrical control system for the tippler (FIG. 6)
forward chambers 12b, 12b’ of cylinders 12, 12' when
comprises a programming mechanism in the form’ of a 60. the bars 14, 14’ are to be raised from their clamping
sequence switch 100 whose cam discs 100a, with, 100g, ' positions. Thechambers 12b, 12!)" contain respective
190d and 100s actuate associated switch members .to open
air spaces which are compressed by’ t'heaforward motion
and'close circuits through the solenoids from a battery
of the pistons 12a, 12a’ as-the clamping bars 14, 14' are
96.,v The cam shaft is rotated by a follower synchro 97
lowered and which expand when the tubes 89, 89' are
which is coupled with a leader synchro 98 ofla type well 65 connected with the return tubes 88, 88’ via the valves
77, 77'; When the cage'41 is rotated through an angle
in excess of 90°, the undercarriage springs of car 1, pre
40‘ which makes a 180° revolution on its axis and then
viously’ compressed under the weight of its load, urge the
returns inthe opposite direction. The unidirectional mo-.
walls of the car against the ‘clamping bars 1-4, 14;’, thereby
tion is accomplished via two pawls 99a, 99b, coupled to 70 compressing further the air contained in the chambers
the ring gear 49 by a step-down transmission system 99,
12b,.12b'>of clamping cylinders 12, 12’. ' The air spaces
each of which engages a respectivetoothedwheel 161a, . thus permit, at least partial relaxation of the undercar
1011) during/each half of thereciprocating cycle of the ‘ riage springs while the load is‘ being dumped and, there—
;known per se. The shaft of theleader synchro is rotated
'unidirectionally by the reciprocatingmotion of the tippler
tippler whereby‘the cam shaft'of synchro 9:7,/geared to
theishaft of wheels 101a, 101li'via a step-up transmission
after, during the return of the cage 41.
_
The time-delay relay 122 is adapted to-open switch
3,082,888
5
6
122a in order to halt the motor 51 and to cease the tippler
said ?rst wall until said second wall abuts said vehicle,
thereby bracketing the latter between said walls, clamp
cycle if, after a period sufficient to insure the engagement
of the car by clamping bars 14, 14', the contact switches
120, 120’, carried by these bars, are not open-circuited
by contact with the top edge of the car 1.
Rotation of the tippler 40 and the cam shaft of the se
ring means on said walls displaceable thereon for en
gaging the vehicle so bracketed from above, third op
erating means for lowering said clamping means into en
gagement with said vehicle, and fourth operating means
for so rotating said frame with the vehicle thus bracketed
quence switch 100 continues until cam disc 100*e opens
and engaged that said vehicle comes to lie on said ?rst
switch 104a and closes switch 104b to reverse the motor;
wall.
the continued rotation of the cam shaft during the return
2. A railroad-car tippler comprising a frame rotatable
stroke of the motor 51 effects the opening of switch 105a 10
about a longitudinally extending horizontal axis, a ?rst
and the closing of a switch 105!) to reverse the action of
longitudinal wall rigid with said frame, a second longi
cylinders 12, 12'. Subsequently, the switch 1062: is closed
tudinal wall on said frame transversely spaced from said
?rst wall and movable relatively thereto, a platform dis
and 2 are once more aligned so that the empty car 1 may 15 placeably carried on said frame between said walls, said
platform being provided with longitudinally extending
be rolled out of the pit 200.
to reverse the action of cylinders 7 and 9 and to restore
the tippler to its normal position whereby the rails 42
rails for supporting a railroad car thereon, ?rst operat
I also provide a valve 111 which is operated by a sole
noid-111a whose energizing switch 107b is closed by cam
disc 100b, after the movable wall and the stationary wall
ing means‘ for transversely displacing said platform on
said frame toward said ?rst wall until a railroad car car
are embracing the car, to permit a flow of ?uid under 20 ried thereon abuts said ?rst wall, second operating means
for transversely displacing said second wall toward said
pressure via a regulating valve 112 to controlled throttle
?rst Wall pntil said second wall abuts said railroad car,
valves 16, 16'. The speed of the clamping bars 14, 14'
may then be regulated by adjusting valve 112. The
thereby bracketing the latter between said walls, clamp
ing means on said walls displaceable thereon for engag
throttle valve 94 is actuated to block flow through the
tube 85 from the cylinder 9, when the movable wall 25 ing the railroad car so bracketed from above, third op
erating means for lowering said clamping means into en
section 11 engages the car, by the rise in pressure behind
the immobilized piston 9a. The adjustable valves 92,
92' serve to damp the displacement of platform 3 while
the tippler is returning to its starting position.
Preferably, the sequence switch coupled by the leader 30
gagement with said railroad car, and fourth operating
means for so-rotating said frame with the railroad car
thus bracketed and engaged that said railroad car comes
to lie on said ?rst wall.
3. A vehicular tippler comprising a frame rotatable
about a longitudinally extending horizontal axis, a ?rst
follower synchros "9-7 and 98 to the motion of the tippler
40 should be so designed that the motion of the movable
longitudinal wall rigid with said frame, a second longi
wall sections 11 and the platform 3, in a direction trans
tudinal wall on said frame transversely spaced from said
verse to the axis of the tippler, should cease when the
tippler has been inclined at an angle of about 8° to the 35 ?rst wall and movable relatively thereto, a platform dis
placeably carried on said frame between said walls, said
vertical from its rest position and that the downward
platform being provided with vehicle-supporting means,
movement of the clamping bars 14, 14' to engage the
?rst hydraulic means for transversely displacing said
edges of the car should be completed when the tippler
platform on said frame toward said ?rst wall until a ve
has reached an inclination of 60-". In FIG. 4 I show
the tippler after a clockwise rotation to an inclination 40 hicle carried thereon abuts said ?rst wall, second hy
of 60°. The tippler proceeds through a full 180°, to
discharge the contents of the car 1, and then rotates in
the counterclockwise direction until it reaches an inclina
tion of 70° to the vertical whereupon the tubes 89, 89'
of the cylinders 12, 12' are communicated with the reser 45
draulic means for transversely displacing said second
wall toward said ?rst wall until said second wall abuts
said vehicle, thereby bracketing the latter between said
drawing the clamping bars 14, 14' from engagement with
walls, clamping means on said walls displaceable thereon
for engaging the vehicle so bracketed from above, third
hydraulic means for lowering said clamping means into
engagement with said vehicle, and means for so rotating
said frame with the vehicle thus bracketed and engaged
the car.
that said vehicle comes to lie on said ?rst wall.
voir to permit the expansion of the air cushions within
these cylinders against the pistons 12a, 12a’, thereby with
4. A railroad-car tippler comprising a frame rotatable
It will be readily apparent that means (e.g. hand-oper 50
about a longitudinally extending horizontal axis, a ?rst
ated switches) may be provided in place of or in addi
longitudinal wall rigid with said frame, a second longi
tion to the automatic sequence switch so that the tippler
tudinal wallon said frame transversely spaced from said
may be operated in the event of failure of the control
?rst wall and movable relatively thereto, a platform dis
system or whenever a different sequence of operations
is desired. The control system shown may be extended 55 placeably carried on said frame between said walls, said
to any number of parallel installations for dumping rail
platform being provided with longitudinally extending
road cars.
rails for supporting a railroad car thereon, ?rst hydraulic
means for transversely displacing said platform on said
The invention described and illustrated may be readily
modi?ed in ways which will be readily apparent to per
sons skilled in the art and which are intended to be in
cluded within the spirit and scope of the invention, ex
cept as further limited .by the appended claims.
I claim:
frame toward said ?rst Wall until a railroad car carried
60 thereon abuts said ?rst wall, second hydraulic means for
transversely displacing said second wall toward said ?rst
wall until said second wall abuts said railroad car, there
by bracketing the latter between said walls, clamping
means on saidwalls displaceable thereon for engaging
1. A vehicular tippler comprising a frame rotatable
about a longitudinally extending horizontal axis, a ?rst 65 the railroad car so bracketed from above, third hydraulic
means for lowering said clamping means into engage
longitudinal wall rigid with said frame, a second longi
ment with said railroad car, and means for so rotating
tudinal wall on said frame transversely spaced from said
said frame with the railroad car thus bracketed and en
?rst wall and movable relatively thereto, a platform dis
gagled
that said railroad car comes to lie on said ?rst
placeably carried on said frame between said walls, said
wa .
platform being provided with vehicle-supporting means,
?rst operating means for transversely displacing said plat
form on said frame toward said ?rst wall until a vehicle
carried thereon abuts said ?rst wal-l, second operating
means for transversely displacing said second wall toward
5. A tippler according to claim 4 wherein said third
hydraulic means comprises a cylinder with an air cushion
enabling limited yielding of said clamping means in re
sponse to supporting-spring pressure tending to move the
tilted railroad car away from said platform.
3,082,888
7
6. -A tippler according to claim 4, vfurther comprising
check means for correlating the operation of all of said
hydraulic means and inactivating any subsequently op
erable hydraulic means pending completion of operation
by a previously operable hydraulic means.
7. A tippler according to claim ‘6 wherein said check
means comprises contact switches on said walls actuata
ble by said railroad car.
'
8. A tippler according to claim 6 wherein said check
8,
12; A tippler according to claim 4 wherein said clamp
ing means comprises a horizontal bar on each of said
walls, said walls being provided'with slots transverse to
said bar, levers positioned externally of said Walls and
connected with said third hydraulic means, and joint
means linking said levers with said'bar, said joint means
passingthrough said slots.
13. A tippler according to claim 4 wherein said sec
means comprises switch means on said clamping means 10 ond wall is provided with a parallelogrammatic linkage
coupled with said second hydraulic means for maintain
engageable by said railroad car. _
ing parallelism between said walls during displacement of
_ 9. A tippler according to claim 4, further comprising
said second wall.
7
?ow-control means for said ?rst, second and third hy
draulic means adapted to retard the motions of said plat
References Cited in the ?le of this patent
form, said second wall-and said clamping means.
15
It}. A tippler according to claim 4, further compris
ing valve means for blocking said ?rst, second and third
hydraulic means in their operated positions.
11.' A tippler according to claim 4, further compris
ing program means establishing a sequence of operation 20
‘UNITED STATES PATENTS
758,191
2,634,005
Robertson‘ __________ __ Apr. 26, 1904
Criner et a1. __________ __ Apr. 7, 1953
1,048,227
Germany ____________ __ Dec. 31, 1958
FOREIGN PATENTS
for all of said hydraulic means, and check means for in
activating said program means upon improper operation
of any vof said hydraulic'means.
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