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Патент USA US3082714

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-March 26, 1963
_
G. B. DoREY
3,082,704
SLIDING HOPPÈR DÍSCHARQE OUTLET CLOSURE ACTUATING MECHANISM
Filed March 10, 1959
5 Sheets-Sheet 1
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March 26, 1963
3,082,704
G. B. DOREY
SLIDING HOPPER DISCHARGE OUTLET CLOSURE ACTUATING MECHANISM `
Filed March 10, 1959
5 Sheets-Sheet 2
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INVENTOR.
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March 26, 1963
3,082,704
G. B. DOREY
SLIDING HOPPER DISCHARGE OUTLET CLOSURE ACTUATING MECHANISM
Filed March 10, 1959
5 Sheets-Sheet 3
J7
INVENTOR.
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March 26, 1963
G. B. DOREY
3,082,704
SLIDING HoPPER DISCHARGE OUTLET cLosURE ACTUATING MECHANISM
Filed March 10, 1959
5 Sheets-Sheet 4
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March 26, 1963
G. B. DOREY `
3,082,704
SLIDING HOPPER DISCHARGE OUTLET cLosURE ACTUATING MECHANISM
5 Sheets-Sheet 5
Filed March 10, 1959
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INVNTOR.
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BY
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3,082,704
United States Patent O ””"CC
Patented Mar. «26, 1953
2
1
or gate is shown in its extreme withdrawn position and
3,082,704
beyond the hopper opening with all parts of the upper
ACTUATING MECHANISM
view showing the arresting mechanism as swinging to an
SLIDiNG HÜPPER DISQHARGE OUTLET CLOSURE
George B. Dorey, Westmount, Quebec, Canada, assignor
to Enterprise Railway Equipment Company, Chicago,
Ill., a corporation of Illinois
'
Filed Mar. 10, 1959, Ser. No. 798,435
6 Claims. (Cl. 165-282)
This invention relates to an improved hopper discharge
outlet such as employed in railway hopper cars and the
like.
The objects of the invention, among others, are: To
provide a closure or gate having bodily translatory and
tilting movement; to provide improved mechanism for
elïecting sliding movement of the closure or gate and also
effecting a tilting movement after a predetermined eXtent
of sliding movement; to provide folding linkage 4mech
surface thereof exposed and accessible for cleaning, said
inoperative position.
FIGURE 9 is a fractional sectional plan view taken
on a line 9-9 of FIGURE 2 and showing the arresting
mechanism.
In said drawings the car structure proper is indicated
by a center sill 10 and a side wall 11, including a side
sill 11a, and interposed between said center sill 10 and
side wall 11 is a hopper generally indicated at 12. In
practice it will be understood that another hopper is dis
posed in transversely aligned relation on the opposite
side of the center sill 19 but, inasmuch as the structure
for both hoppers is similar, the description herein will
be coniined to the hopper 12. The hopper 12 is gen
erally of four-sided construction including oppositely
sloping floors 13 and 14 which meet with outer and inner
anism for effecting sliding and tilting movement of a
closure or gate; to provide improved means for retaining 20 side walls 15 and 16 to form the four sides of the hopper
opening 12’.
linkage mechanism in an enfolded relation and thereby
The hopper 12 and opening 12’ therethrough are
permitting the operation of said linkage in both tension
bordered by a frame 17 which includes an upper Vsection
and compression; and to provide mechanism for arresting
opening movement of a closure or gate in full open posi
18 and a lower four sided enclosure 19.
The upper
tion with provision for rendering said arresting mech 25 section 18 includes walls 20, 21, 22 and 23 of roiled
steel plate which overlie the sloping ñoors 13 and 14 and
anism inoperative to allow further opening movement
the side walls 15 and 16. The walls 20, 21, and 22 ex
of said closure.
tend at an inwardly sloping angle and wall 23, which
The invention further resides in certain details of con
overlies the inner side wall 16, includes a downwardly in
struction concerned with the structure of the outlet and
details of mechanism associated with the movement and 30 wardly sloping section 24, FIGURE 4, There is, there
fore, formed by walls 20, 21 22 and 2li an inverted
operation of `the closure or gate.
trapezoidal like structure which seats in the lower er1
For :further comprehension of the improvement rer'
closure 19.
erence may be had to the accompanying drawings where
The lower enclosure 19 includes longitudinally eX
in the invention is shown as applied to a railway hopper
35 tending side walls 25 and 26 and end «walls 27 and 2S
car.
of rolled structural steel channel. The side walls 25
In said drawings:
and 26 and end wall 27 each include sloping upper sec
Figure l shows the lower portion of one halt the width
tions as indicated at 29, 3d and 31 which underlie the
of a railway hopper car with the improved outlet struc
respective sloping walls 22, 24 and 21 and are welded
ture applied thereto, the center sill and a portion of the
side wall being shown in vertical section, the arresting 40 thereto as indicated at 32, 33 and 34. The end wall 28
mechanism being omitted for the sake of clarity.
Figure 2 is a side elevational view of the lower portion
of the hopper structure shown in FIGURE 1, as viewed
from lett to right.
FIGURE 3 is a top plan View of the outlet assembly
shown in FIGURE 2 with the floor plates and side walls
eliminated and certain parts broken away to better illus
extends transversely at a sloping angle between the side
walls 25 and 26 and includes an upper ledge portion 35
which extends from the sloping wall 23 on a radius of
appreciable length to provide an arcuate surface 36. The
ledge 35 constitutes the lower wall of a slot 37 through
which a sliding closure or gate 38 extends. The upper
boundary of the slot 37 is formed by the lower margin
44) of a transversely extending reinforcing member 41
which is of rolled structural steel angle like shape with
FIGURE 4 is a vertical transverse sectional view taken
50 one wall 42 underlying the sloping wall 2€) and having
through the hopper and on a line _4-4 of FIGURE 2.
trate the structure.
FIGURE 5 is a vertical longitudinal sectional View
the adjacent wall ,43 extending outwardly and longitudi
taken on a line 5_5 of FIGURE l showing the closure
nally of the frame 17 .
position.
tally as at 53to allow for downwardly movement of the
The closure or gate 38 is vformed of rolled steel plate
or gate in closed position.
and preferably includes a flat body portion 44 having
FIGURE 6 is a vertical longitudinal sectional view
similar to FiGURE 5 except that the closure or gate is 55 an upturned end flange 45 and upstanding side flanges 46
and 47. Runways for the closure or gate 38 are pro
shown in an intermediate position after the leading edge
vided at each side of the frame 17 as indicated at 48
is withdrawn from its side supporting ledges and with the
for supporting the closure or gate 38 in combination with
arm and linkage mechanisms in enfolded state, said View
an end ladge -49 in closed position. The runways 48 are
also indicating by conventional dot and dash lines the
60 secured, as by welding, to the inner sides of the Vside
position of the closure or gate in tilted position.
walls 25 and 26» andthe end ledge 49 is likewise secured
FIGURE 7 is a vertical longitudinal sectional View
to the inner `surface of the end wall 27. Extension run
similar to FIGURES 5 and 6 except that the closure or
ways 50 lie beyond the frame »17 and are disposed in align
gate is shown in normal open position by r‘ull lines with
the trailing edge thereof held in settled open position by
ment with lthe runways 48 and 49 to underlie the trailing
the enfolded linkage which is held in such position by 65 edge of the closure or gate 38 when in open‘position.
an arresting stop, said view also indicating by conven
Intermediate the runways 48 and 49 and the extension
tional dot and dash lines the high position of the trailing
runways `50 there are intermediate portions extending
edge of the closure or gate prior to its assuming its settled
downwardly at an inclined as at 52 and thence horizon
FIGURE 8 is a vertical longitudinal sectional view 70 leading edge 38' of the closure or gate 38 as will be
similar to FIGURES 5, 6 and 7-except that the closure
described.
‘
‘
'
"
`
3,082,704
d.
At the sides of the frame 17 there are disposed ex
tensions 54--‘54, in the form of an angle shaped rolled
structural members, which overlie the side walls 2S and
26 and are welded thereto as indicated at 55.
The ex
tension runways 50 are suitably secured, as by welding,
to the inner sides of the extensions 54. Bearings 57 are
welded to the outer ends of the extensions '54 for receiv
movement of the plate 81 of the arresting mechanism 79
as shown in FIGURE 8 and the lower flange 86 forming
a rest for the plate 81 of the arresting mechanism 79
as shown in FIGURE 7. The arresting mechanism 79 is
thus weighted to bias it to arresting position and such
biased position is further positively secured by means of
ribs ‘87 which are disposed in alignment with the arms
ing a rotatable operating shaft 58.
60 and said ribs form a rest for limiting undue over
The operating shaft 58 is connected with the closure
center knuckling of the linkages 59‘ when the closure or
or gate 38 by means of folding linkages generally indi 10 gate 38 is in closed position as seen in FIGURE 5.
cated at 59. Each linkage 59 is of the so-called jack
Whenever complete accessibility to the closure or gate
knife type and there are preferably two per outlet. Each
38 is desired for cleaning purposes, the normally biased
linkage 59 includes an arm 60 non-rotatably mounted on
arresting mechanism 79 is shifted to an inoperative posi
the shaft 58 and a pair of links 61 and 62 straddling the
tion as seen in FIGURE 8. Then the closure or gate 38
arm 60 and pivotally united therewith by pivot pins 62’ 15 can be completely withdrawn beyond the opening 12’ until
and also pivotally connected with the closure or gate
its trailing end 70 rests on enlarged arcuate shaped ends
38 by pivot pins 63. Integrally formed with the arms
88 of the arms 60.
60 are hubs 64 which, in turn, are held in position along
In the fully open position, las seen in FIGURE 7, it
the shaft 58 by rivets 64’. Lugs 6'5, FIGURE 3, are
secured to the upstanding flange 45 of the closure or gate 20 will be noted that the closure or gate 38 has been moved
downwardly from its most elevated or tilted position,
38 and disposed in alignment with the arms 60 to receive
as seen by conventional dot and dash lines, through a
the pivot pins 63. With the links 61 and 62 united to
distance indicated by the reference numeral 89. In its
gether by the pivot pins 62' and 63, it will be observed
lower or settled position the closure or gate 38 is re
that the links 61 and 62 of each linkage 59 function as
a unitary structure and, when in extended position as 25 tained against closing movement under such vibratory
impulses as are usually employed for releasing lading
best seen in FIGURES 3 and 5, act as struts between the
since the axis of the pivot axis 63 is positioned to the
:respective arm 60 and the closure or gate 38 to maintain
right of the axis 66 of the shaft 58.
the latter in closed position with the line of thrust from
Each linkage S9, as will be more particularly observed
the axis 66 of rotation of the shaft 58 to the closure or
gate 38 extending on a substantially straight line 67, 30 by reference to FIGURE 7, operates as a strut to sup
port the trailing end 70 of the closure or gate 38 in
FIGURE 5, through the axis 66 of the shaft 58 and the
open position and is held in enfolded position on
longitudinal axes of pivots 62’ and 63. Rotation of the
the shaft 58 by reason of the contact between pe
shaft 58 clockwise through an angle of approximately
ripheral surfaces 72 of extensions ’71 on links 62 and
180° operates to enfold the linkages 59 to the position
best seen by reference to FIGURE 6 which moves the 35 the seats 73 and 74 of the plates 75 and 76. The runway
surfaces of the horizontal parts 53-'53 operate as guides
closure or gate 38 along the horizontal runways 48 and
to engage the leading edge 38’ of the closure or gate
49 to a midway position of the discharge opening 12’.
38 and guide the same along the surfaces of the inclined
'I'he linkages 59, upon attainment of the enfolded state,
parts 52-52 to suppporting position on the surfaces of
function as rigid connections between the shaft 58 and
the closure or gate 38 upon further rotation of the shaft 40 runways 48-48.
The extensions 54-54 are braced transversely by a tie
58 in the same direction by reason of each of the inner
member 90 which is preferably in the form of an angle
links 61 having an indented central portion 68 having a
member which also operates as a brace for the bearing
seat 69 which engages with the respective hub 64 which
plates 84-84 which are welded thereto at 91.
preferably is formed integrally with the related arm 60.
Upon continued rotation of the shaft 58 in a clockwise 45
Any suitable means may be provided for rotating the
direction from the position indicated by full lines in
shaft 58. In the present embodiment an operating head
FIGURE 6, there is an upward movement of the trailing
92 having a series of openings 93 for a removable bar 94
is used.
end 70 of the closure or gate which is now free to tilt
about the arcuately shaped surface 36 on the end wall
'I'he walls 25, 26 and 27 of the lower enclosure 19 are
2'8 as indicated by conventional dot and dash lines in 50 reinforced by outwardly laterally extending flanges 95,
FIGURE 6.
In order to assure the functioning of each linkage 59
as a unit operable in either direction of rotation of the
96 -and 97 and on two adjacent sides grooves 98 and 99
are provided to receive the conventional types of chute
extension as indicated by conventional dot and dash lines
shaft 58, the link 62 is provided with a lateral extension
at 100 in FIGURE 2. The closure is retained in place
71 having a peripheral surface 72 extending concentri 55 by means of C clamps indicated conventionally by the
cally with respect to the axis 66 of the shaft 5-8 and ex
numeral 101.
tending through an arc of preferably in excess of 180i".
The assembly of the folding linkages 59 and the ap
The arcuate surface 72 is adapted to engage tangentially
plication thereof to the closure or gate 38 preferably
with abutment seats 73 and 74 during rotation of the
is accomplished by welding the ends of the pivot pins 62’
shaft 58 with the linkages 59 in enfolded state as shown 60 and 63 to the respective associated links 61 and 62 as
in FIGURES 6, 7 and 8. The seats 73 and 74 are prefer
indicated at 102 and 103 in FIGURE 3 thereby giving
ably provided by the employment of ñat plates 75 and
each pair of links 61 and 62 unusual stability and per
76 which are secured in place by welding to the bearings
mitting them to function as an integrated structure.
S7 as at 77 and 78.
Upon continued clockwise rotation of the shaft 58 55
from the position shown in FIGURE 6 the closure or
gate 38 is moved to full open position as seen in FIGURE
7. Further opening movement of the closure or gate
38 is limited by arresting mechanism 79, FIGURE 9, in
the form of a pivotally mounted rod 80 having a plate 81 70
welded thereto at 82. The rod `80 is pivotally mounted in
bearing plates 84-84 welded to the inner sides of the
extensions 54. The plates 84 are preferably of channel
shape with inturned upper and lower flanges 85 and 86,
the upper flanges 8S serving to limit upward swinging 75
What is claimed as new is:
1. A discharge outlet assembly comprising, in combina
tion:
(a) an enclosure defining a discharge opening,
(b) a slidable closure for said opening projecting at
one end through one side of said enclosure in closed
position and movable to open position beyond said
one side,
(c) rails supported on opposite sides of said enclosure
and extending toward each other on which said clo
sure is slidable and extending outwardly of said one
,
3,082,704
6
5
side of said enclosure for supporting said closure in
open position,
(d) a shaft mounted on said rails adjacent the out
wardly extending distal ends thereof,
(e) crank arm means non-rotatably mounted on and
extending radially from said shaft,
(f) linkage pivotally connected at one end to said pro
jecting end of said closure and pivotally connected
said closure in contact with the rails until said linkage
is folded on Said shaft and thereafter said linkage oper
ates as crank means to lift the projecting end of the clo
sure out of contact with said rails.
4. The invention, as set forth in claim 3, wherein the
closure in the upward movement of its projecting end has
a tilting movement about the underlying one side of the
enclosure.
5. The invention as set forth in claim 1, wherein:
(a) intermediate portions of the rails inside the one
side of the enclosure are omitted to permit the clo
(g) said crank arm means and said linkage being
sure to have a tilting movement both inside and out
adapted to assume a straightened position when said
side said enclosure about said one side, and
closure is in fully closed position,
(b) the relationship between the crank arm means and
(h) said shaft upon rotation to move said closure from
the linkage is such that on rotation of the shaft in a
closed to open position being adapted to swing said
direction to move said closure from closed to open
linkage from its straightened position to fold on said
position a pull is exerted on said closure through
shaft and thereafter upon continued rotation of said
said linkage to move said closure in contact with
shaft in the same direction said linkage being adapted
said rails until said linkage is folded on said shaft
to function as crank means,
and thereafter said linkage operates as crank means
(i) the pivot axis between said crank arm means and 20
to tilt said closure about said one side.
said linkage passing through the path of movement
6. The invention, as set forth in claim 5, wherein the
of said closure during a portion of its movement be
closure is movable through a lslot in the one side of the
tween open and closed position, and
enclosure through which it projects and the upper margin
(i) means positioned on the distal end of one of said
of said slot in cooperation with portions of the rails on
rails and cooperating with said likage during the
at its opposite end to said crank arm means on said
shaft,
open position to convert the rotational movement of
opposite sides of the closure guides said closure for trans
latory movement during the initial portion of its open
said operating shaft into translatory movement of
ing movement.
initial closing movement of said closure from full'
said closure.
2. The invention, as set forth in claim 1, wherein the- 30
means for converting the rotational movement of the
operating shaft into translatory movement of the closure
includes:
(a) bearing sector means extending laterally from the
linkage intermediate its ends and presenting a cylin
drical configuration concentrically related to the axis
of rotation of said shaft when said linkage is folded
as aforesaid, and
(b) abutment seat means carried by the one rail in
such position as to engage said bearing sector means 40
tangentially during rotation of said shaft from its
position with said linkage folded thereon to move
said closure toward closed position.
3. The invention, as set forth in claim 1, wherein the
relationship between the crank arms means and the link« 45
age is such that on rotation of the shaft in a direction to
move the closure from closed to open position a pull is
exerted on said closure through said linkage to move
References Cited in the file of this patent
UNITED STATES PATENTS
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731,817
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2,859,707
Kramer _____________ __ Aug. 30,
Russell _____________ __ June 23,
Campbell ____________ __ Feb. 13,
Quinn _______________ __ June 28,
Coleman _____________ __ July 18,
Wright ______________ __ Mar. 12,
Handy ______________ __ July 9,
Hansen _____________ __ Dec. 29,
Hart et al. ___________ __ Dec. 29,
Keithley ______________ __ July 2,
Cristianson __________ __ May 17,
Campbell ____________ __ Jan. 10,
Cristianson ___________ __ Feb. 6,
Boyd ________________ __ Apr. 24,
Weniger _____________ __ Apr. 20,
Dorey _______________ __ Nov. 11,
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UNITED STATES PATENT OFFICE
CERTIFICATE OF CORRECTION
Patent No. 3,082,704
March 26, 1963
George B. Dorey
It is hereby certified that error appears in the above numbered pat
ent requiring correction and that the said Letters Patent should read as
corrected below.
Column 5, line 3, after "shaft" insert -- rotatably --.
Signed and sealed this 8th day of October 1963,
(SEAL)
Attest:
ÈRNEST W. SWIDER
.ättesting Officer
EDWIN L. REYNOLDS
Ac t i ng Commissioner of Patents
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