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Патент USA US3032808

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May 8, 1962
‘
c. J. MOHUGH, JR., ETAL
3,032,798
CASE CLEANING MACHINE
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Filed Feb. 9, 1960
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May 8, 1962
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c. J. MCHUGH, JR., ETAL
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3,032,798
CASE CLEANING MACHINE
Filed Feb. 9, 1960
9 Sheets-Sheet 2 _
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May 8, 1962
c. J. MCHUGH, JRQ, ETAL
3,032,798
CASE CLEANING MACHINE
Filed Feb. 9, 1960
9 Sheets-Sheet 3
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May 8, 1962
c. J. MCHUGH, JR., ETAL
3,032,798
CASE CLEANING MACHINE
Filed Feb. 9, 1960
9 Sheets-Sheet 5
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May 8, 1962
c. J. MCHUGH, JR., ETAL
3,032,798
CASE CLEANING MACHINE
Filed Feb. 9, 1960
9 Sheets-Sheet 6
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May 8, 1962
c. .1. MCHUGH, JR, ETAL
3,032,798
CASE CLEANING MACHINE
9 Sheets-Sheet 8
Filed Feb. 9, 1960
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May 8, 1962
c. J. MOHUGH, JR., ETAL
3,032,793
CASE CLEANING MACHINE
Filed Feb. 9, 1960
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3,032,798
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Patented May 8, i362
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generally cylindrical; having a cylindrical dirt collector
drum mounted upon a horizontal ‘axis, together with a
3,032,793
CASE CLEANKNG MACEHNE
guide rail structure passing in a spiral path about the
Charles J. Mel-high, In, and Edward F. Rowekamp, Cin
cinnati, Ghio, assignors to The Lodge & Shipley Corri
pany, Cincinnati, Ohio, a corporation of Ohio
drum and leading from an infeed conveyor at the re~
ceiving side of the machine. The empty cases advance
along the case conveyor and along the infeed conveyor,
then they are engaged by a rotary feed cage which is con
centric with the collector d'rum and which advances the
cases in a spiral path along the guide rail‘ structure. As
Filed Feb. 9, 1960, Ser. No. 7,641
13 Claims. (Ci. 15—304)
This invention relates to an automatic cleaning and
handling machine which is arranged to remove dust and 10 the case advances around the collector drum, a beater
mechanism applies impact blows to the bottom of the case,
debris from open containers and cases which are advanced
along a conveyor line.
The principles of the presentv invention are disclosed
in relation to a machine for cleaning the containers used
in packaging beer, soft drinks and the like which are
returned to the bottling plant containing empty bottles.
and as the case approaches an invertedposition, the
open face of the case is presented to an ,opening'in the
upper portion of the, collector drum, such that the dirt
and other material dislodged by the beater mechanism’ is
dumped through the opening into the collector drum,
then the interior of the case is air blasted.
I
By way of example, bottled beer is shipped from the
By virtue of the spiral path through which the case
brewery packed in standard sized cases formed of heavy
is advanced, the machine conserves a great deal of space;
paperboard material, one size containing twelve quart
bottles and a second size containing twenty-four twelve 20 moreover, the machine takes advantage of the spiral path
to invert the case for dumping the debris and to expose
ounce bottles. These cases are provided with a pair of
all internal surfaces to the action of the air blast stream.
hinged top cover ?aps which meet along the center of
The air blast nozzle is mounted within the collector
the case and con?ne the bottles therein for convenience
drum and is arranged to project the air blast streams
in stacking and handling. The bottled beer is‘ sold either
by the case or by the bottle, and in either event, the
empty bottles are repacked into the case and returned
to the brewery for reuse of the bottles and case.
Many times bottles are broken through accidents in
handling the case, and it is returned to the brewery
in time with the passage of the individual cases along,v the
opening in the upper portion of the drum. Since the‘ art'
gle of the case changes constantly as it advances with‘ its
open face presented to the opening of the drum, the air
blast impinges directly upon all internal surfaces of the
with the broken pieces of glass left in place. Moreover, 30 case, thereby to remove the dust and dirt from all internal
since the cases of empty bottles often remain in storage
surfaces, even those which overhang‘ with respect to the
for considerable periods of time before being returned,
open‘ face of the case.
they are exposed to dust and dirt and also to insects and
p
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.
In order to con?ne the dust and dirt .within ‘the col
lector drum, there is provided a vacuum system arranged
other vermin. As a consequence, the cases‘ must be
cleaned out before they can be re?lled and delivered 35 to pull air inwardly through the openings of the collector
drum so as to prevent the escape of dust into, the at
to the retailer.
mosphere. Moreover, the air blast’ nozzle‘is operated in
It has been one of the primary objectives of the present
invention to provide an automatic machine adapted to
remove broken glass and other debris and to clear each
blowing the dust outwardly through the opening of the
case of dust in a rapid automatic manner as‘ the cases 40
drum across which the cases pass.
time with the advancement'of the cases so as to avoid
,
.
, .
In order to adapt the cleaning machine to the random
are advanced along a production line, such that the cases
are in condition to be repacked with ?lled bottles im
advancement of the cases along the conveyor line of the
mediately after passing through the cleaning machine.
bottling plant, the infeed conveyoris provided-with a
gate mechanism which operates in time withthe rotary
According to this aspect of the invention, the cases,
which are returned to the bottling plant, are ?rst emptied 45 advancement of the feed drum._ As the cases advance
to the infeed conveyor, the leading case is' arrested by
of bottles and are transported along a case conveyor line
in upright position, and with the top ?aps folded out
wardly on opposite sides for access to the interior of
the case. The cleaning machine is interposed in‘ the case
conveyor line so'that the empty cases advance directly
to the machine, pass through it for treatment, then are
returned to the conveyor line. Upon entering the ma
chine, rapid impact blows are imparted to each case
to loosen dust and any dirt which may adhere to its sur
the gate mechanism, causing several of the cases to be
held temporarily in- row formation adjacent theinfeed
conveyor to be released individually in time withthe
rotary motion of the feed cage, such that,the released
case or container is advanced along the ,infeed conveyor
to thereceiving end of the spiral guide rail structure,
Thereafter, the case is engaged by, the rotary cage ‘and
advanced in its spiral path,’ around the drum. After.
passing upwardly through the beaterrnechanism and along
face, then the case is inverted progressively, to dump
the loosened dirt and debris by gravity. After having
been dumped, and while in inverted position, an air blast
is projected against the internal surfaces of ‘the case so
section of the ,case conveyor in upright position for ad;
as to clear away the dust or other adhering material.
vancement from the clea'ning‘machine.
repacked with ?lled bottles.
frame.
the opening of the drum for air “blast treatment, the case
advances downwardly and ,?nally, reaches, the delivery
,_
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After this operation, the case is returned to its upright 60
In order to adapt the machineto containers. of various
position and advanced in the same direction along the
shapes and sizes, the several components of the machine
case conveyor at the opposite side of the machine to be
are adjustably' mounted with respect‘ to the machine
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,.
Other objectives of the invention have been to provide
The various objectives and advantages of the invention
a cleaning machine which is compact in, size and arrange 65 will be more fully apparent, to those skilled in the art
ment, so as to conserve space within the bottling plant;‘
from the following detailed description taken'in con‘
to provide an air nozzle arrangement whereby all in
junction with the drawings.
terior surfaces of the case are thoroughly air blasted; and
to con?ne the dislodged dust and dirt within the ‘cleaning
machine so as to avoid contaminating the atmosphere 70
within the bottling plant or brewery.
In“ order to’ conserve space, the cleaning machine is
In. the. drawings:
,
.
FIGURE 1 is a perspective view illustrating_ the general
arrangement of a case cleaning machine constructed ac;
cording to the’ principles’ of the present invention;
3,032,798
3
4
FIGURE 2 is an end view of the machine shown in
FIGURE 1.
FIGURE 3 is a view looking toward the receiving side
of the machine, with parts broken away to illustrate the
arrangement of the collector drum and air nozzles.
FIGURE 4 is a view similar to FIGURE 3 but looking
toward the opposite or discharge side of the machine.
FIGURE 5 is an enlarged general plan of the machine
the cases in a spiral path about the cylindrical collector
drum which is indicated generally at 11. As shown in
FIGURE 1, each case is advanced with its open face pre
sented to the surface of the drum 11 and with the ?ap
sections 5 extending outwardly on opposite sides and rest
ing against the surface of the drum. As the case is ad
vanced around the drum, it is held in place by a circu
lar guide rail structure 12 which extends from the inner
as viewed along line 5—-5 of FIGURE 2, illustrating
end of the infeed conveyor 6 (FIGURE 2).
As viewed
the driving system and infeed conveyor.
10 in FIGURES 3 and 4, the guide rail structure is arranged
FIGURE 6 is an enlarged fragmentary end view, fur
to slidably engage the bottom and opposite sides of the
ther illustrating the driving system in relation to the ro
case and is spirally arranged with respect to the drum so
tary feed cage.
as to deliver the cleaned cartons to the discharge con
FIGURE 7 is an enlarged top plan as viewed along line
veyor section 3, which is offset laterally with respect to
7—7 of FIGURE 2, illustrating the infeed conveyor, with 15 the infeed conveyor 6. Each case thus passes around the
the gate mechanism in its arresting position.
drum in a spiral path after leaving the infeed conveyor,
FIGURE 8 is a fragmentary top plan view, taken from
then continues in the same direction along the production
line on conveyor section 3.
FIGURE 7, showing the gate mechanism shifted to its
release position, whereby the case is advanced into the
As the case advances about the drum, it is intercepted
cleaning machine.
by a heater mechanism, indicated generally at 13 (FIG
FIGURE 9 is an enlarged sectional view taken along
URE 4) which applies rapid impact blows to the bottom
line 9—9 of FIGURE 7, showing the adjustment device
of the case to loosen and dislodge dust and solid particles
which adapts the gate mechanism to cases and containers
from the interior of the case. After advancing beyond
of various sizes.
the beater, the case passes along an opening 14- forrned in
FIGURE 10 is an enlarged sectional view taken along
the upper portion of the drum (FIGURES 3 and 4), the
open face of the case being presented to the opening.
line 10—10 of FIGURE 7, detailing the adjustable guide
bar of the gate mechanism.
As best shown in FIGURE 3, the interior of the drum
FIGURE 11 is an enlarged sectional view taken along
11 includes an air blast nozzle, indicated generally at 15,
arranged to project high velocity blasts of air into the in
line 11-11 of FIGURE 7, detailing the swinging arm of
the gate mechanism.
30 side of the case. Thus, as the case advances through its
arc in an inverted position along the opening 14, any solid
FIGURE 12 is an enlarged sectional view taken along
object such as broken glass and the like will be discharged
line 12—12 of FIGURE 7, illustrating the actuating cyl
inder of the gate mechanism.
by gravity through the opening and into the collector
FIGURE 13 is an enlarged side view of the beater
drum. The ?ner particles of material and dust, which
mechanism as viewed along line 13-13 of FIGURE 2.
will have been loosened by the beater 13, are then cleared
from the case by operation of the air blast during fur
FIGURE 14 is a sectional View taken along line lit-14
ther advancement of the case. Since the case is travelling
of FIGURE 13, further illustrating the beater mechanism.
in a circular path along the opening 14, its angle is con
General Arrangement
stantly changing with respect to the path of the air Streams
Referring to FIGURE 1, the case cleaning machine 40 projected from the nozzle 15. The arrangement is such
is mounted upon a frame indicated generally at 1, and is
shown as part of the production line of a bottling plant,
the empty cases being advanced to the cleaning machine _
upon the delivery section 2 of a case conveyor and trans
that the streams are projected directly upon all surfaces
and corners of the case, as‘ explained later in detail.
The
machine is provided with a timing apparatus which admits
air pressure to the nozzle in time with the advancement
ported from the cleaning machine by a discharge section 45 of the case along the opening 14, thereby to prevent dust
3 of the conveyor. In the present disclosure the machine
from being blown through the opening.
is set up for cleaning standard sized beer cases, as indi
In order to prevent dust from drifting and contaminat
cated generally at 4, although as indicated above, the
ing the air, a centrifugal suction pump 16 (FIGURE 2)
machine is intended for cleaning various other types of
is connected to the collector drum 11 and arranged to
containers.
50 draw air continuously from the drum and discharge it into
The beer case 4 is of the type which is fabricated from
an air ?lter or bag.
The blower maintains a gentle draft
a heavy grade of paperboard material having a pair of
downwardly into the opening 14 so as to pull the dust
hinged top ?aps 5—5 which meet at the center of the
laden air through the drum to the ?lter. The interior of
case when in closed position. In handling cases of this
drum 11 includes an inclined chute 17 arranged to deliver
type, the flaps 5 may be opened by hand, or the production 55 the solid particles by gravity through an opening 18 in
line may be provided with means for opening the flaps,
the end wall of the drum (FIGURE 2).
such that they are advanced to the cleaning machine
lnfeed Conveyor and Gate Mechanism
with the ?aps spread outwardly as shown in FIGURE 1.
As the cases are advanced to the cleaning machine, they
The infeed conveyor, previously indicated at 6 com
passfrom the end of conveyor section 2 to a belt type 60 prises a pair of spaced side rails zit-2t) (FIGURES 5,
infeed conveyor, indicated generally at 6, which forms a
6 and 7) supported in a horizontal plane by vertical mem
part of the cleaning machine, conveyor 6 being driven
bers 21 rising from a lower horizontal frame 22 which
by a driving system 7, which also powers the several
forms a part of the framework 1. The conveyor includes
components of the cleaning machine, as explained later.
a drive roller 23 at its inner end and an idler roller 24 at
Upon reaching the infeed conveyor 6, the case advances
its outer end, each roller having a shaft 25. The shaft of
until it is arrested by the gate mechanism, indicated gené
the drive roller 23 is journalled in suitable bearings 26
erally at 8 (FIGURES 7 and 8). During operation of
(FIGURE 7) attached to the side rails Ztt. The conveyor
the machine, the open cases may advance at random spac_
belt 27 is tracked upon! the rollers and the belt tension
ing on the conveyor section 2. The gate mechanism 8
is regulated by the adjustment screws 28 which engage
forms the random cases into a solid row on the conveyor 70 the slide bearings 3tl~—3il of the idler shaft 25. The shaft
section 2 and releases the cases individually in time with
25 of the drive roller 23 includes a sprocket 31 in driving
the rotation of a feed cage, indicated generally at 10
connection with the driving system 7 through a sprocket
(FIGURE 1).‘
chain 32 (FIGURE 5). The driving system is described
- The rotary cage 10 rotates continuously in the direc
in detail later, but it will be understood at this point, that
tion indicated by the arrow in FIGURE 1 and advances 75 both the rotary cage 10 and infeed conveyor 6 are ad
3,032,798
5
d
vaneed continuously by the driving system while the ma
chine is in operation.
ment of cage 10, the gate mechanism 3 arrests the cases I
URE 7). The bumper 53 is mounted upon a threaded
stud 54 which passes through the angle bracket 46.
The inclined guide bar as is supported by an adjust
able bracket 55 (FIGURE 7), which in turn, is mounted
as they advance from the conveyor section 2.
upon a pair of ?xed brackets 56 which are attached to
‘In order to advance the cases in time with the advance
As ex
the side rail 20 on the side opposite the swinging arm
plained later in detail, the cage is provided with a series‘
38. The adjustable bracket is slotted as at 57 and the
of cross bars 33 which engage each case individually after
?xed brackets are slotted as at 58, the slots being traversed
it is released by the gate mechanism, and which advances
by bolts 69 to permit the adjustable bracket to be shifted
the case in its spiral path around the collector drum. As
best shown in FIGURES 7 and 8, the gate mechanism 8 is 1O with respect to the conveyor. This adjustment permits
the inclined bar ‘36 to be shifted relative to the swinging
provided with a ?xed stop bar 34 which is mounted upon
an angle bracket 35 secured to one of the side rails 25 of
arm 33 in accordance with the size of the case or con
tainer for which the machine is set up. In the position
of the parts shown in FEGURE 7, the leading corner of
cases 4. The case is guided into engagement with the stop 15 the case, which is advanced to the infeed conveyor, will
slide along the surface of the inclined bar 36 and thus
bar by an inclined guide bar 36 at the opposite side of the
the infeed conveyor. The end portion of bar 34 projects
above the belt 27 and in the path of advancement of the
conveyor.
The conveyor belt 2'7 advances continuously while one
or several cases are held in stationary position by the stop
bar the cases being released individually in time with the
rotary motion of the cage 10 by an air cylinder 37. The
air cylinder is arranged to shift a swinging arm 38 out
wardly from the position of FIGURE 7 to that of FIG
URE 8, so as to shift the leading case laterally out of en
will be guided laterally into contact With the swinging
arm 38, which normally resides in retracted position
against the bumper 53. The corner of the case is thus
guided into abutment with the outer portion of the stop
bar 34 which overhangs the conveyor belt 27.
Described in detail With reference to FIGURE 10, the
rearward end of the inclined bar 36 includes a lug 61
which is pivotally connected to a pin 62. The pin rises
from a block 63 attached to an angle piece 64}, which is
attached to the adjustable bracket 55. The rearward
gagement with the stop bar, thus allowing the case to ad
vance along the infeed conveyor to be engaged by one
portion of the bar 36, adjacent the pivot pin 62, is bent
of the cross bars 33 of cage id, as indicated diagrammati
outwardly as at 65 to provide a guide surface engage
cally in FIGURE 6.
able with the advancing cases.
In order to time the release of the case, there is provided
in order to provide a slight cushioning effect and to
an air valve 44} (FIGURE 2) having an actuating arm 41 3O
ermit ?nal adjustment of guide bar 36, there is provided
including a roller at its outer end adapted to be tripped by
a yieldable adjustment screw, indicated generally at 66,
the advancing bars 33> of the cage. The valve 40 is con
engageable with the swinging end of bar 36. As detailed
nected to an air pressure line, as explained later, and corn
in FIGURE 9, the adjustment screw 66 includes an in
municates by way of conduit 42 with the cylinder 37.
ternal bore 67 slidably supporting a stud 68, the stud be
When valve 49 is‘ tripped by one of the bars 33, the piston
ing biased by a compression spring 79 disposed within
of the air cylinder shifts the arm 38 outwardly to the posi
the bore and seated against the rearward end or" the stud.
tion of FIGURE 8 to release the case. The relative
Screw 66 is threaded through a nut 71 which is welded
speeds of the conveyor and cage are such that the released
as at 72 to the adjustable bracket 55. The adjustment
case reaches the receiving end of the guide rail structure in
advance of the cross bar 33 after the bar has tripped the 40 screw 65 includes a knob 73 at its outer end and is
locked in its adjusted position by a lock nut 74 adjacent
valve.
the ?xed nut 71.
After the air cylinder releases the case, the arm 38
swings back to its retracted position (FIGURE 7) by op—
As shown in FIGURE 7, a tension spring 75' has one
end anchored as at 76 to the adjustable bracket 55 and
eration of a compression spring within cylinder 37. In its
normal position, the valve 4% vents the conduit 42 to 45 has its opposite end anchored as at 77 to the guide bar
3§. The tension spring is relatively light and holds the
the atmosphere to permit the return motion of the piston
bar 35 in its adjusted position in contact with stud 68.
under operation of the spring.
The stud, by operation of the compression spring 7%,
As noted earlier, the cases may be advanced at random
permits the bar 36 to yield slightly under impacts as the
upon the delivery conveyor section 2 toward the infeed
conveyor 6. In order to properly time the release of the 50 bar intercepts the cases, which advance at a relatively high
speed on the inieed conveyor.
cases with the advancement of the feed cage it}, the stop
bar 34% of the gate mechanism causes a number of cases
Feed (Inge and Guide Rail Structure
to be arrested in solid row formation upstream from the
As
best
shown in FIGURE 1, the collector drum 11
stop. Each time the arm 33 (which operates in time
with the feed cage) dislodges the leading case from the 55 is mounted in ?xed position upon a horizontal frame 78
stop bar 34‘ for advancement to the cage, the next case
in the solid row moves forwardly into engagement with
the stop bar ready for the next feed cycle.
As detailed in FIGURE 11, the rearward end of'swing
ing arm 38‘ includes a lug 43 which is pivotally connected
to a pin 44 rising from a block which is attached to the
angle bracket 35. The angle bracket is bolted directly to
formed of angle irons and supported by the legs Sit which
also support the lower frame 22. The rotary cage lit
comprises a pair of circular bands git-81 which are con
centric with drum ii at opposite ends, the bands being
channel shaped in cross section. These circular bands
are joined in spaced relationship by the cross bars 33,
the opposite ends of the bars being con?ned in blocks 82
which are attached to the inner surface of the circular
the side rail 2%) of the inteed conveyor, as noted earlier.
bands. The circular bands are supported and driven by
The projecting rearward end of the swinging arm 38 is
bent outwardly at an angle as at 45 (FIGURE 8‘ to form 65 sets of rollers at opposite sides, consisting of drive rollers
83—83 and idler rollers tit-$4; (FIGURE 5).
V a guide surface engageable with the advancing cases.
As best shown in FIGURE 5, the rollers 33 and dd in
The air cylinder 37 (FIGURE 12) is mounted upon
clude stub shafts $5 journalled in bearing blocks 37, the
an angle bracket 46 rising from the‘bracket and bolted
blocks being mounted upon the channel irons‘85 of frame
thereto. The piston rod 47 of the cylinder includes a
slotted head 43 threaded upon its outer end, and the 70 1. The shaft of each drive roller 33 includes a sprocket
88 and a sprocket chain 9% passes around the sprockets
swinging end of arm 38 includes a slotted lug 50. A
$8 at opposite sides. The chains 9%) form a part of the
link 51 pivotally connected as at 52—52 to the head lug,
driving system and advance both circular bands 81 at the
interconnects the piston rod to the arm. In order to
same speed. Gne of the idler rollers $4 is arranged to
dampen impacts, there is provided a‘ rubber bumper 53
engageable with the arm 38 in its retracted position (FIG~ 75 drive the beater mechanism 13, as explained later;
3,032,798
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Referring to FIGURES 2 and 4, the receiving end of
bearings 1il3—l13 journalled upon a drive shaft lid.
~ the guide rail structure 12 comprises a ?exible metal strip
The drive shaft 114 is journalled in bearings 115-415
mounted upon hearing brackets 116 rising from frme
'73. The U-shaped frame is thus pivotally supported upon
or band 91, which is pivotally connected to a pin 92
carried by lugs hf; on the inner end of the infeed con
veyor 6. The metal strip 91 is spring loaded, as explained
later, and is arranged to slidably engage the bottom of
with the surface of the drum 11 as the case is advanced
shaft lid and may be adjusted with respect to the circular
guide rail 12 to accommodate the size of the containers.
For this purpose, a bolt 117 projects outwardly from frame
78 and passes through the cross piece 112 (FIGURE 14).
by the cross bars 33 of the rotary cage.
Nuts 113, threaded on bolt 117 engage the opposite sides
the case or container so as to hold the open face in contact
As shown in
FIGURE 2, strip 91 is generally concentric with the pe 10 of the cross piece 112 and clamp the frame in its adjust~
ed position, as indicated by the arrow in FIGURE 14.
riphery of drum l1 and is spirally arranged relative to
the axis of the drum, as view in FIGURE 4.
As the cases are released by the gate and advanced
The upper portion of the frame 111 includes a heater
shaft 12%) ,iournalled in a second pair of bearings 113
113. The heater shaft includes heaters or vanes 121
by the infeed conveyor, they stop at the receiving end of
the metal strip 91, approximately as indicated in broken 15 formed of ?exible belting or the like, which are attached
as at 122 to the shaft. The individual heaters are arranged
lines in FIGURE 2, then they are engaged by the advanc
in pairs, the two pairs being disposed at right angles to
ing cross bar 33 and transported upwardly about the
one another and spaced along the shaft in position to act
drum ill. During advancement of the case, its opposite
upon the bottom of the case as it approaches the open
sides are guided by a pair of side guide bars 94-94
ing 14 of the collector drum.
(FIGURE 4), which reside on opposite sides of the strip
Referring to FIGURES 5 and 6, the heater is driven
91 and which are also concentric with the drum. The
by one of the idler rollers 84 which supports cage it),
bars F4 are spaced outwardly on opposite sides of the
the stub shaft 86 of the roller having a gear 123 keyed
strip 91 in a position to slidably contact the opposite sides
thereto and meshing with a gear 124 keyed to a shaft
of the advancing case. It will be noted in FIGURE 2
that the cross bars 33 of the cage are located inwardly of 25 125 which is journalled in a bearing block 126. Stub shaft
125 includes a sprocket 127 for driving the beater mech
the guide bars 9~”i—94 and pass in a concentric path about
anism. For this purpose, the drive shaft 114 (FIGURE
the drum.
13) includes a sprocket 128 driven by a sprocket chain 136
The lower ends of the guide bars
are anchored upon
which passes about the lower sprocket £27. The drive
adjustable angle brackets 95—95 which are mounted upon
shaft 114 includes a sprocket 131 having a chain 132
respective ?xed brackets 96 attached to the side rails 2b‘ of
the infecd conveyor. The angle brackets 95 are slotted
transversely, adapting the side guide bars to be adjusted
which drives a sprocket 133 on the beater shaft 1%.
Rotation of the idler roller rotates the beater 121 in the
direction indicated by the arrows in FEGURES 6 and 14.
in accordance with the size of the case or container; the
The speed ratio provided by the idler roller drive im
brackets are secured in adjusted position by screws d7
threaded into the ?xed brackets 96. The opposite ends 35 parts su?icient velocity to the heaters to provide the desired
of the guide bars % are anchored upon similar adjustable
impact blows.
brackets 95.? (FIGURE 3) which are bolted as at Hill to
the ‘frame 161 of the discharge conveyor section, pre
viously indicated at 3. As shown in FIGURES 3 and 4,
As the case travels upwardly in its circular path about
the collector drum after having passed the beater mech
anism, it is progressively inverted, causing any loose mate
rials within it, such as broken glass or the like, to be
dumped by gravity through the opening 14 to fall on the
inclined chute 17 of the drum. Finer particles, such as
the intermediate portions of the guide bars 94-94~ are held
in spaced relationship by pairs of adjustable brackets
1ll2-lltl2 secured to the horizontal frame 73. These
brackets also include slots traversed by screws 163 which
clamp the brackets and guide ‘oars transversely in adjust
dirt and dust which may adhere to certain areas of the
case are subsequently dislodged as the case advances over
ed position with respect to the frame 78.
45 the air blast nozzles 15.
The upper end of the ?exible guide strip 91 is slidably
Collector‘ Drum and Air Pressure System
connected to a central guide bar 1M which forms a con
As the case passes along the opening 14 and is acted
tinuation of the ?exible strip 91 (FEGURE 4). As
upon by the heaters, it is supported by a pair of arc-uate
shown in this view, the end of the central guide bar we
is anchored in a socket Th5 which is secured to the hori 50 rails 134—134 (FIGURES 2 and 3) which engage the
open face of the case. After passing beyond the beater
zontal frame '73. The upper end of the strip 91 includes
mechanism, the interior of the case is subjected to an air
a slide block 1616 slidably engaged upon the bar 104.
blast from the nozzle 15 to thoroughly clean out any ?ne
A spring 15}? is con?ned in compression between the
particles which may adhere to the interior of the case. As
socket NS and block 1% so as to pull the end of strip
91 upwardly. By virtue of this tension, the flexible strip 55 noted earlier, since the case is travelling in a circular path
along the opening, its angle continuously changes with re
91 holds the open face of the case or container firmly
spect to the path of the air streams issuing from the noz
against the periphery of the drum II as the case is carried
zle 15. As the case ?rst approaches the nozzle, the air
upwardly from the infeed conveyor by the advancing
blast is projected along the inner surface of the leading
As shown in FIGURE 3, the opposite end of the cen 60 wall then into the juncture or corner of the leading wall
and bottom. During further advancement, the air blasts
tral guide bar N94; is anchored to a bracket 1&8, which
are projected along the inner surface or’ the bottom, into
is also bolted to the frame 78. A curved delivery plate
cross bar.
lit? extends from the frame 78 as a continuation of the
the trailing end of the case, and ?nally along the inner
central guide bar 164 and slidably supports the cases
surface of the trailing end wall. Air blast streams are also
65 projected upon the inner surface of the side walls and
into the side corners of the case as it advances relative to
the nozzle 15.v The angular motion of the case, combined
or containers as they are advanced to the conveyor sec
tion 3 after having been cleaned.
Bearer Mechanism
with the action of the blast streams, thus causes complete
removal of the dust and dirt and prevents the dislodged
As best shown in FIGURES 2 and 4, the beater mech
anism 13 is mounted upon the frame 73 adjacent the up 70 material from settling upon overhanging surfaces, such
as the inturned lip which is usually formed at the open
per portion of the curved metal strip 91 in a position to
face of the case.
.
act upon the bottoms of the advancing cases. As detailed
in FIGURES 13 and 14, the mechanism includes a U
Described in detail with reference to FIGURES l, 2
shaped frame having uprights llll—l11 joined by a cross
and 3, the air nozzle 15 comprises a pair of jet ?ttings
member 112. The lower portion of each upright includes
135-435 mounted upon an air operated relay valve 136
3,032,798
9
.
which communicates with an air pressure conduit 137
passing through the collector drum ll.
‘e an conduit
137 is in communication with an air supply line 138 lead
ing from a suitable source of air pressure. Air line 138
includes a ?lter Md of commercial design and a pres
sure regulator 14!. A cut off valve 142 is inserted in
the line in advance of the ?lter. The air pressure for the
nozzle 15 is is supplied by the branch air line M3 on
the downstream side of the pressure regulator. The air
line 138 also includes an oil feeder 145-4, which introduces 10
traces of oil into the air stream for lubricating the com
ponents of the air supply system.
The operation of the nozzle is regulated by an air
ventional design, which separates the dust particles from
air streams which pass through the ?lter. The suction
system pulls air from the drum at a sufficient rate to
create a slight draft inwardly by way of the openings
14 and 13 so as to prevent the dislodged dust from drift
ing from the drum.
The front wall 153 of the drum
is provided with a projecting lip 158 leading from the
inclined chute 17 and arranged to deliver the solid par
ticles to a container which may be placed adjacent the
opening 18 during operation of the machine.
Driving System
As‘ best shown in FIGURES 5 and 6, the entire ma
valve 145 having an actuating arm 146 including a roller
chine, with the exception of the vacuum apparatus, is
at its outer end. The roller intercepts the cross bars 33 15 powered by a main motor indicated at 159 mounted upon
of the cage and thus trips the valve, similar to the valve
an adjustable base 160. The motor includes a variable
40, described earlier with reference to the gate mecha
speed pulley 161 belted as at 1-62 to a second variable
nism.
speed pulley 163, which drives a speed reduction unit 164.
In order to provide a sustained air jet during passage
The speed reduction unit and motor are mounted upon
of the case across nozzle 35', the valve 145 includes a 20 a platform 165 which forms a part of the lower frame 22.
dashpot (not shown), which closes the valve after a time
The drive rollers 83 of cage 16, and the infeed conveyor
delay period. The valve 145 is connected to the relay
6 are both driven by a jack shaft 166 which is iournalled
valve 136 of the nozzle by a control conduit 147. When
in bearing blocks 16’? carried by the frame 222. The
valve 145 is tripped by one of the cross bars 33 air pres
speed reduction unit 164 includes a sprocket 11.68 in driv
sure is advanced from the valve by way of control conduit 25 ing connection with a sprocket 17d of the jack shaft by
147 (FIGURE 2) to the relay valve 136. Relay valve
a sprocket chain 171. The base 16% of motor 15$ in;
136 then opens to permit air pressure to flow directly
cludes a hand Wheel 1722 which shifts the motor relative
from supply line 137 through the nozzle. After the
to the reduction unit 164 and thus varies the speed of the
time delay for which the dashpot is set, air pressure in
jack shaft through operation of the variable speed pulleys
control line 147 is relieved, thus closing the relay valve 30 1'61 and 163.
136. The arrangement is such that air blasts, which are
The opposite ends of the jack shaft 166 each include
initiated by the cross bars 33, are timed with the passing
a sprocket 173, the sprocket chain 90 of drive rollers 63
of the cases across the opening 14.
being trained about the sprockets 173 for driving the cage
It will be understood that the valve 145 starts the
10'. The infeed conveyor is driven by a sprocket 174
air blasts in time with the advancement of the case so 35 keyed to the jack shaft adjacent the sprocket 170. The
that the blast intercepts the leading end of the case and
is terminated at the trailing end of the case. In order to
accommodate for the variation in the size of the different
case or containers which may be processed by machine,
the angle of the nozzle 15' may be adjusted relative to
the opening 14 to meet the oncoming cases. in addition,
the dashpot of the valve 145 may be adjusted to vary the
duration of the blast in accordance with the size of the
chain 32 of the infeed conveyor is trained about the
sprocket 1'74, thereby to drive the infeed conveyor at a
speed which is timed with the speed of the feed cage.
occur if the air blasts were sustained continuously.
a lever lull. Lever 18b is pivotally connected as at 181
to the frame 22 and is connected as at 182 to the coupling
element 176. The outer end of pull rod 177 includes a
In» order to prevent damage in the event a case or con
tainer should become jammed in the machine, the driving
sprocket 170 is connected to the jack shaft 166 through an
overload clutch 1'75. This clutch is a commercial struc;
ture and has not been disclosed in detail; however, it will
case.
be understood that the clutch is arranged to disconnect
Since the air blast nozzle is activated only while the 45 the sprocket 170 from the shaft when a predetermined
case is in a position to intercept the blast streams, the
overload develops. The clutch includes a coupling elel
foreign materials within the case are deflected directly
ment 176 which shifts outwardly upon disengagement
into the interior of the collector drum. Moreover, the
under overload. In order to reset the cltuch, there is pro
timed operation of the nozzle prevents dust from being
vided a manually operated pull rod 177 supported in slide
blown outwardly through the opening M, which could 50 brackets l’l’dél’ig and connected to‘the swinging end of
The gate control valve Ill}, which regulates the action
of the gate mechanism, as previously described, is con
nected with the supply line 133 by a branch line‘ 15%.
handle 183 which is pulled outwardly to reset the clutch.
It will be noted (FIGURE 3) that the valves lit} and 1&5 55
Having described our invention, we claim:
are both mounted upon brackets 5.51 of frame 78 and are
1. An automatic machine for removing materials from
spaced inwardly from the circular track $1, such that
containers having an open face comprising, a cylindrical
the respective actuating roller arms 41 and 146 are posi
collector drum mounted upon a generally horizontal axis‘,
tioned to e tripped by the cross bars 33 of the cage‘.
guide means extending about said collector drum adapted
The arrangement is such that both valves are tripped at 60 to guide the containers about the external periphery of
about the same time by the advancing cross bars, so as
said cylindrical collector drum with the open face of each
to reiease one case upon the intake conveyor, while a pre
container con?ned by the guide‘ means in sliding contact
viously release-d case is being acted upon by the air blast
with the periphery of the cylindrical collector drum, feed
ing means associated'with the drum and adapted to ad~
As viewed in FIGURES l and 2, the collector drum ll 65 vance said containers along said guide means, said drum
is supported relative to the frame '73 by respective angle
having an opening in a portion thereof which faces
irons 152‘ welded or otherwise secured to the oppposite
upwardly, said opening being disposed in the path of
end walls 153 of the drum, the angle irons Edit being
motion of said containers along said guide means, where
bolted to the frame '73. The suction pump is is mounted
by said containers pass across said opening in' a position at
upon the lower frame 22 (FlGURE 2) and is intercon 70 least partially inverted and with the open face thereof
nected with the end wall 153 of drum ‘ill by an air
presented downwardly to said opening, causing the ma
duct 154;. The pump is supported by a base 1555 joined
terials within the containers to be dumped by gravity into
the collector drum.
to frame 22, and is driven by a motor 15:’: (FIGURE 4)
which is also mounted on the frame 22. The suction
2. An automatic machine for removing dust and other
pump 16 discharges into a ?lter unit or bag H57, of con
a materials from containers having an open face comprising,
nozzle.
_
_
3,082,798
1l
12
a cylindrical collector drum mounted upon a subsantially
horizontal axis, means adapted to advance the containers
about said drum with the open face of each container pre
are dislodged from the container by said heater mechanism
and are dumped from the open face of the container
through said opening during passage along said opening
sented to the external periphery of the cylindrical collector
drum, the periphery of the cylindrical collector drum pro
viding a guide surface adapted to slidably engage the open
face portion of the container during advancement thereof,
said drum having an opening in a portion thereof which
while residual dust and materials adhering to said sur
faces are cleared away by said air blast means.
faces upwardly, said opening being disposed in the path of
horizontal axis, guide means extending about said cylin
5. An automatic machine for removing dust and other
materials from containers having an open face comprising,
a cylindrical collector drum mounted upon a generally
motion of said containers about the drum, adapting said 10 drical collector drum in concentric relationship thereto
adapted to engage the containers, means adapted to ad
containers to swing through an inverted position across the
vance the containers about said drum in a spiral path
opening with the open face of the containers presented
with the open face of each container slidably engaged
downwardly to said opening, causing non-adhering mate
against the surface of the cylindrical collector by said
rials within the containers to be dumped by gravity into
the collector drum, and air blast means disposed within 15 guide means, said drum having an opening in a portion
thereof which faces upwardly, said opening being dis
the drum and adapted to project air blast streams into
posed in the path of motion of said containers about the
the interior surface of said inverted containers during ad
drum, adapting said containers to pass across said opening
vancement thereof along the said opening, the curvature
in an inverted position with the open face thereof pre
of said drum adapting the angular relationship of the in
sented downwardly to said opening, beater means mount
verted containers to change progressively during advance
ed adjacent said drum and adapted to apply impact blows
ment relative to said air blast means, whereby said air
to said containers during passage thereof across said
blast streams are projected directly against all the in
opening, and air blast means mounted within said drum
ternal surfaces of the containers to remove adhering dust
and adapted to project air blast streams upon the interior
and other materials from said surfaces.
surfaces of the container during advancement thereof
3. An automatic machine for removing dust and other
along said opening, whereby adhering dust and other
materials from containers having an open face compris
materials are dislodged from the container surfaces by
ing a generally cylindrical collector drum mounted upon
said heater mechanism and dumped into the drum during
a substantially horizontal axis, guide means extending
passage along said opening, while residual dust and mate
about the cylindrical collector drum means adapted to
advance the containers about said drum with the open 30 rials adhering to said surfaces are cleared away by said
face of the containers con?ned by the guide means in slid
air blast means, the curvature of said drum causing the
angular relationship of the container to change progres
ing engagement with the external periphery of the drum,
said drum having an opening in a portion thereof which
sively during advancement relative to said air blast nozzle,
whereby said air blast streams are projected directly
faces upwardly, said opening being disposed in the path of
motion of said containers about the drum, adapting said 35 against substantially all the internal surfaces of the con
containers to pass across said opening in an inverted posi
tainer.
6. An automatic machine for removing dust and other
tion with the open face of the containers presented down
wardly to said opening, thereby causing non-adhering ma
terials within the containers to be dumped by gravity into
the collector drum, air blast means disposed wtihin the
drum and adapted to project air blast streams into the
interior surface of said inverted containers during ad
vancement thereof along the said opening, the curvature
of said drum adapting the angular relationship of the in
verted containers to change progressively during advance
ment relative to said air blast means, whereby said air
blast streams are projected directly against all the internal
surfaces of the containers to remove adhering dust and
other materials from said surfaces, and air suction means
communicating with said drum and adapted to draw air
inwardly through the opening in the drum, thereby to
draw from the drum the dust which is dislodged from the
containers by said air blast means.
4. An automatic machine for removing dust and other
materials from containers having an open face com
prising, collector means having a cylindrical guide sur
materials from containers having an open face com
prising, a cylindrical collector drum, a cylindrical feed
cage mounted for rotation in substantially concentric re
lationship with such drum and adapted to advance the
containers about said drum with the open face of each
container presented to the drum, said drum having an
opening in a portion thereof which faces upwardly, said
opening being disposed in the path of motion of said con
tainers about the drum, whereby said containers pass
across said opening in a position at least partially inverted
and with the open face thereof presented to said opening,
causing the materials within the containers to be dumped
by gravity into the collector drum, air blast means disposed
50 within the drum and adapted to project air blast streams
into the interior surface of the cases during advancement
thereof along the said opening, and timer means connected
to the air blast means, said timer means mounted in a posi
tion to be actuated by the feed cage in time with the rotary
motion thereof, said timer means adapted to supply air
face disposed about a generally horizontal axis, guide
ressure to the air blast means in time with the advance—
means extending about the collector means and spaced
ment of the containers across said opening, whereby the
outwardly in concentric relationship with the cylindrical
air blast means is adapted to remove adhering dust from
the interior surfaces of the case.
guide surface thereof, said guide means engaging the con
tainers and confining the open face portion thereof in slid 60
7. An automatic machine for removing materials from
ing engagement with the cylindrical guide surface of the
containers having an open face comprising, a generally
collector means, means adapted to advance the containers
in a spiral path about said guide surface, said guide
surface having an opening in a portion thereof which
cylindrical collector drum mounted upon a horizontal
axis, an infeed conveyor extending along a horizontal
plane adjacent the collector drum and adapted to advance
faces upwardly, said opening being disposed in the path 65 the containers toward the drum with the open face there
of motion of said containers, adapting said containers to
pass across said opening in an inverted position with the
open face thereof presented downwardly with respect to
said opening, beater means mounted adjacent said guide
surface in the path of motion of the containers and
adapted to apply impact blows to said containers during
passage thereof about the guide surface, air blast means
adapted to project air blast streams upon the interior sur
of presented upwardly, a generally circular guide rail
structure extending in a spiral path from the infeed con
veyor and about said cylindrical collector drum, said cir
cular guide rail structure being spaced outwardly from the
cylindrical collecter drum and being concentric there
with, said circular guide rail structure adapted to guide the
containers from the end of the infeed conveyor and about
said drum with the open side of the container presented
faces of the container during advancement thereof along
‘said opening, whereby adhering dust and other materials 75 to the external periphery of the drum and con?ned by
3,032,798
13
ment of the feed cage.
mounted for rotation about a horizontal axis in a path
generally concentric with said drum, said feed cage in
other materials from containers having an open face
cluding elements engageable with the containers therein
for advancing said containers along said guide rail struc
10. An automatic machine for removing dust and
comprising, a generally cylindrical collector drum
mounted on a horizontal axis, stationary guide means
ture, said drum having an opening disposed in the path of
extending around the said cylindrical drum in concentric
motion of said containers, said guide rail structure and
relationship therewith, said guide means adapted to en
gage the containers with the open face portion thereof in
drum adapting the containers to assume an inverted posi
q,-
14
by said pusher elements in time with the rotary advance
the guide rail structure in sliding engagement with the
surface of the cylindrical drum, a cylindrical feed cage
tion with the open side presented downwardly to said
opening during advancement by said feed cage, whereby
the materials within the container are dumped by gravity
into the collector drum during advancement around the
sliding engagement with the cylindrical surface of the
collector drum, an infeed conveyor extending along a sub
stantially horizontal plane and adapted to advance the
containers toward the drum with the open faces thereof
presented upwardly, a cylindrical feed cage mounted
drum.
8. An automatic machine for removing dust and other 15 for rotation about a horizontal axis in a path generally
concentric with said drum, said feed cage including
materials from containers having an open face compris
pusher elements extending transversely through the guide
ing, a generally cylindrical collector drum mounted on
rail structure and engageable with the containers therein
a horizontal axis, an infeed conveyor extending along a
for advancing the containers about the‘ drum with the
substantially horizontal plane and adapted to advance the
containers toward the drum with the open faces there 20 open face of each container presented to the external
periphery of the drum, the upper portion of the drum
of presented upwardly, a cylindrical feed cage mounted
having an opening therein in the path of motion of
for rotation about a horizontal axis in a path generally
the containers to receive the material therefrom, gate
concentric with said drum, guide means extending about
means mounted relative to the infeed conveyor and
the cylindrical collector drum, said guide means being
substantially concentric with the cylindrical collector 25 normally residing in a position to arrest the containers
thereon, actuating means connected to the gate means
drum and adapted to con?ne the containers for move
for shifting the same to a release position, said gate
ment about the periphery of the collector drum with the
means adapted to release an individual container upon
open face portion of the containers in sliding engage
being shifted to said release position, a timing device
ment with the external periphery of the drum, said feed
cage including pusher elements engageable with the con 30 mounted for actuation by the pusher elements of the
feed cage, said‘ timing device being interconnected with
tainers slidably con?ned by said guide means for advanc-‘
said actuating device for shifting the gate mechanism to
ing the containers about the drum with the open face of
said release position in time with the rotary advance~
each container presented to the external periphery of the
ment of the pusher elements of the cage, whereby the
drum, the upper portion of the drum having an opening
therein in the path of motion of the containers to receive 35 containers are released individually and advanced to a
position to be engaged by said pusher elements in time
the material therefrom, gate means mounted relative
with the rotary advancement of the feed cage.
to the infeed conveyor and normally residing in a posi
11. An automatic machine for removing dust and
tion to arrest the containers thereon, actuating means
other materials from containers having an open face
connected to the gate means for shifting the same to a
release position adapting the gate means to release an 40 comprising, a generally cylindrical collector drum
mounted on a horizontal axis, an infeed conveyor ex
individual container, and means interconnecting said cage
tending along a substantially horizontal plane and adapted
and gate actuating means and adapted to shift the gate
to advance the containers toward the drum with the open
means to said release position in time with the rotary
faces thereof presented upwardly, stationary spiral guide
advancement of the cage, whereby the containers are
released individually and advanced to a position to be 45 rail structure extending around said drum and adapted
to guide the container from said infeed conveyor about
engaged by said pusher elements in time with the rotary
said drum with the open face of the containers presented
advancement of the feed cage.
to the external periphery of the drum, cylindrical feed
9. An automatic machine for removing dust and other
cage mounted for rotation about a horizontal axis in a
materials from containers having an open face compris
ing, a generally cylindrical collector drum mounted on 50 path generally concentric with said drum, said feed cage
including pusher elements extending transversely through
a horizontal axis, an infeed conveyor extending along
the guide rail structure and engageable with the con
a substantially horizontal plane and adapted to advance
tainers therein for advancing the containers individually
the containers toward the drum with the open faces
along said guide rail structure, said collector drum hav
thereof presented upwardly, a stationary guide rail struc
ture extending around said drum in concentric relation 55 ing an opening disposed in ‘the path of advancement of
said containers, said pusher elements adapted to advance
ship therewith, said guide rail structure adapted to guide
said containers along said opening with the open face
the container from said infeed conveyor about said drum
of the container presented to the opening, an air blast
with the open face portion of the containers con?ned by
nozzle mounted within the drum and arranged to direct
the guide rail structure in sliding engagement with the
blast streams of air through the said opening and into
external periphery of the cylindrical collector drum, a
the interior of the containers passing thereover, and
feed cage mounted for rotation about a horizontal axis
timer means mounted adjacent said feed cage in position
in a path generally concentric with said drum, said feed
to be actuated by the said pusher‘ elements, said timer
cage including pusher elements extending transversely
means interconnected with said air blast nozzle and
across the guide rail structure and engageable with the
containers therein for advancing the containers along 65 adapted to actuate the same in time with the advance
ment of the containers along said opening.
said guide rail structure, gate means mounted relative to
12. In an automatic machine for removing materials
the infeed conveyor and normally residing in a position to
from containers having an open face, said machine having
arrest the containers thereon, actuating means connected
a generally cylindrical collector drum and having a cylin
to the gate means for shifting the same to a release posi
tion adapting the gate means to release an individual 70 drical feed cage mounted for rotation in a path generally
concentric with said drum, said feed cage including spaced
container, and means interconnecting said cage and gate
pusher elements engageable with the containers individu~
actuating means and adapted to shift the gate means
ally, an infeed conveyor comprising, a substantially hori
to said release position in time with the rotary advance
zontal frame mounted adjacent said drum, a conveyor
ment of the cage, whereby the containers are released
belt carried by said frame and adapted to advance the
individually and advanced to a position to be engaged
3,032,798
15
containers toward the drum, guide means mounted along
one side of said frame above the conveyor belt, a sta
tionary stop element mounted on said conveyor frame on
veyor and residing in an inwardly inclined position rela
tive to the path of advancement of the conveyor belt, a
stationary stop element mounted on said conveyor frame
the side opposite said guide means, said guide means
on the side opposite said guide bar, said guide bar adapted
adapted to de?ect a container on said conveyor belt in
a lateral direction and into engagement with said stop
element, thereby to arrest the container on the conveyor
belt, a shiftable element pivotally mounted on said frame
to de?ect a container on said conveyor belt in a lateral
direction and into engagement with said stop element,
thereby to arrest the containers on the conveyor belt, a
swinging arm pivotally mounted relative to the conveyor
frame on the side occupied by said stationary stop ele
on the side occupied by the said stationary stop element
and in a position upstream relative to the stop element, 10 ment in an upstream position relative to the stop element,
said arm normally residing in a retracted position and
said shiftable element normally residing in a retracted
adapted to dislodge a container arrested by said stop
position and being adapted to dislodge a container ar
means upon being shifted to a release poistion, actuating
rested by said stop means upon being shifted to a release
means operatively connected to said arm, a timer mounted
position, actuating means operatively connected to said
adjacent said rotary feed cage in a position to be actuated
by the pushers thereof, said timer being connected with
cage in a position to be actuated by the pushers thereof,
said actuating means and adapted to shift said swinging
said timer being connected with said actuating means and
arm to said release position upon actuation of the timer
adapted to shift said shiftable element to said release
by said pushers, whereby the arrested containers are re
position upon actuation of the timer by said pushers,
whereby the arrested containers are released individually 20 leased individually and advanced ‘by the infeed conveyor
toward said cage in time with the advancement of the
and advanced by the infeed conveyor toward said feed
pushers thereof.
cage in time with the advancement of the pushers thereof.
shiftable element, a timer mounted adjacent said feed
13. In an automatic machine for removing materials
from containers having an open face, said machine hav
ing a generally cylindrical collector drum and having a 25
cylindrical feed cage mounted for rotation in a path
generally concentric with said drum, said feed cage in
cluding spaced pushers engageable with the containers
individually, an infeed conveyor comprising, a substan
tially horizontal frame mounted adjacent said drum, a 30
conveyor belt carried by said frame and adapted to ad
vance the containers toward the drum, a guide bar
mounted along one side of said frame above the con
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,836,802
2,119,596
2,354,308
2,369,575
2,546,281
2,662,653
2,832,090
Johnson _____________ __ Dec. 15,
Mintert et a1 ___________ __ June 7,
Everett ______________ __ July 25,
Kay _________________ __ Feb. 13,
Talbot ______________ _._ Mar. 27,
Bianchi et al ___________ __ Dec. 15,
Ross ________________ __ Apr. 29,
1931
1938
1944~
1945
1951
1953
1958
2,982,985
Hohenadel et a1 ________ __ May 9, 1961
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