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Патент USA US2124423

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- July 19, .1938.-
50mm “same MACHINE
Filed Feb. 2; 1935
3 Sheets-Shut. 1 -
July 19, 1938.
_ Filed Feb. 2, 1935. I
,s sheets-Sum z
d -_ 5.
Patented July 19, 1938 ‘
2,124,423 \
Archie E. Ladewig and George F. Soelch,
Application February 2, 1935, Serial No. 4,662
2 Claims. (01. 198-24)
This invention relates in general to- improve
ments in the art of cleansing objects in succes
sion, and relates more speci?cally to improve
ments in the construction and operation of ma
5 chines for automatically washing'glass bottles
or the like.
A general object of the invention is to provide
an improved bottle washing machine which is
simple and compact in construction, and which
10 is, moreover, highly ef?cient in operation.
A more speci?c object of the invention is to
provide improved loading and unloading mecha
nism ‘for bottle washing machines, which is es
pecially adapted to effect rapid and automatic
15 loading and unloading of the successive bottle
carrier pocket-sin a most effective manner.
‘ Another speci?c‘object of the invention is to
provide improved ‘mechanism for driving a bot
tle washing machine and the elements for deliv
20 ering the successive bottles to and from the car
rier pockets of the machine, with minimum dan
ger of breaking the relatively brittle bottles.
Still another speci?c object of the invention
is to provide automatically functioning bottle
25 cleansing structure which may be manufactured
and operated at minimum cost, and which may
be conveniently actuated by a novice.
An additional speci?c object of the invention
is to provide an improved assemblage for driving
30 a bottle washer, which will function effectively
irrespective of variations in the sizes and shapes
of the bottles, and which is effectively protected
against damage due to possible jamming of
These and other objects and advantages of the
present improvement will be apparent from the
following detailed description.‘
A clear conception of embodiments of the vari
ous features constituting the present improve
40 ment, and of the mode of constructing and of
operating bottle washing machines built in ac
cordance with the invention, may be had by
referring‘ to the vdrawings accompanying and
forming a part of this speci?cation, in which like
45 reference characters designate the same or simi
lar parts in the Various views.
Fig. 1 is a central vertical section taken longi
tudinally through the front end of a bottle
washer, showing the carrier pocket drive in pro
50 pelling condition, the loading mechanism in hot
tle receiving-position, and the unloading mecha
nism in inactive position, the carrier pocket ad
jacent the driving pawl having been omitted;
Fig. 2 is a‘similar view of the bottle washer,
showing the carrier pocket drive in ine?ective
position, the loading mechanism in' the act of
delivering bottles to the adjacent carrier pockets,
andthe unloading mechanism in the act of de
livering washed bottles from the adjacent car
rier pockets;
Fig. 3 is another similar view of the bottle
washer, again showing the carrier-pocket drive
in ineffective position, the loading mechanism
in bottle receiving position,and the unloading
mechanism in the act of ?nally discharging a
Washed bottle;
Fig. 4 is a front end view of the washing ma
chine drawn to a'somewhat reduced scale, and
showing the carrier pockets diagrammatically;
Fig. 5 is a perspective View of the front end‘
portion of the improved bottle washer;
Fig. 6 is a fragmentary side view of the loading
mechanism of the washing machine, showing the
safety stop mechanism as it appears during nor
mal operation of the apparatus;
Fig. '7 is a similar view- of the safety stop
mechanism, showing the same in action; and
Fig. 8 is a front view of the safety stop meche
_ anism of Figs. 6 and 7.
While the improvement has been shown and .
described herein as being speci?cally applied to
a machine of definite capacity especially adapted
to automatically wash a succession of milk bot
tles, it is not intended to limit the scope of the
invention by such speci?c embodiment since 30
some of the improved features are obviously ap
plicable to other sizes and types of receptacle
cleansing machines.
Referring to the drawings, the milk bottle
‘washer illustrated therein comprises in general
a. main casing 10 having a soaking liquid basin
in the lowerportion thereof and also having I
similar endless rails ll secured to the opposite
side walls thereof; an endless conveyor l2 hav 40
ing successive ‘links and rollers l3 cooperable
with the rails II; a succession of bottle receiving
and transporting pockets l4 carried by the con
veyor l2 and having enlarged open ends adapted
to receive the bottles IS; a lower plate l6 dis~ 45
posed within the soaking liquid basin and coop
erable with the larger open ends .of the pockets
M to retain the bottles l5 therein when the
pockets are inverted; improved mechanism for
loading the bottles I5 into the successive empty
pockets l4 while at rest; other'improved mecha
nism for removing .the Washed bottles l5 from
the pockets ~I4, while at rest, and from the ma
chine, at the loading end of the latter; and ‘im
proved driving mechanism for propelling the 55
pocket conveyor l2, the loading mechanism, and
the unloading mechanism. ’
The interior of the main casing I0 is, more
over, provided with the usual spray or brush
washing mechanism, or both, in 'addition to the
soaking liquid basin, for thoroughly washing the
bottles l5, but since this'mechanism forms no
part of the present improvement, it has not been
illustrated herein. The rails I I, conveyor l2, and
nected to the swinging ends of levers 29, the op
posite ends of which are secured to an auxiliary
pivot shaft 30 rotatably mounted in the spaced
plates l9; and ‘the outer free end of the shaft 30
carries a lever 3|, the swinging end of which nor
mally coacts with a notch 32 in a switch actu
ating arm 33, while the medial portion of~this '
lever is pivotally connected to a rod 34 engaged
by a spring 35. The function of the spring 35 is
pockets I4 are likewise of relatively well-known to normally maintain the lever 3| in engagement
construction, with the exception that the rails II with the notch 32 of the switch arm 33, but when
have inclined front portions IT with which the the cross-bar 21 is engaged by a projecting bottle
conveyor I2 is cooperable to retain the ‘carrier l5, the shaft 30 is partially rotated so as to swing
pockets l4 in substantially parallel, inclined .posi
15 tions as shown in Figs. 1, 2, and 3, during both the end of the lever 3| as shown in Fig. '7, there
by displacing the switch arm 33. The switch arm 15
the loading and, the unloading operations, so that I. 33 is swingable about a lower supporting pivot 36
both of these operations may be effected closely and has its .upper swinging end connected to, a
adjacent to each other and at the same end of switch actuating vrod 31 in such manner that
the machine with relatively simple and compact when thelever 3| is in normal position, as shown
20 mechanisms operable from the main drive which
in Fig. 6, the control switch 38 for the motor
also actuates the conveyor l2.v
which drives the washing “machine is closed;
The improved mechanism for loading the -whereas, when the lever 3| is shifted to the posi
bottles l5 into the successive rows of empty car
tion shown in Fig. 7, the switch 38 is open and
rier pockets |4 while they are at rest, comprises, the operation of the machine is stopped.
25 a movable trough-like support l8 disposed .across
The improved mechanism for unloading or for 25
the front of the machine between side plates IS; removing the successive clean bottles l5 from the ,
a pair of laterally spaced side arms 20 swingably pockets l4 and from the machine is clearly shown
or tiltably suspending the bottle support IS; a in Figs. 1-5, inclusive, and comprises a set of re
‘horizontal pivot shaft 2| with which the lower ciprocable bottle ejectors 39 carried by a cross
ends of the arms 22' are rigidly connected and head 4ll-movable along inclined guides 4| and
which is oscillatable in the side plates l9; a lever along guide slots 42 associated with the opposite
22 for periodically oscillating the shaft 2|; ,a _ sidewalls of the main casing‘ III; a bottle receiv- _ connection 23 for actuating the lever 22; and im I ing and transferring support 43 carried by a hori
proved safety stop mechanism cooperable with zontal cross-shaft 44 pivotally mounted in the
35 the admitted bottles l5 for stopping the machine ' side plates l9; and an auxiliary. conveyor 45 mov
in case a bottle l5'fai1s to properly enter its ably supported at the upper ends of the side plates
receiving pocket l4.
I 9 and arranged to deliver the ?nally washed
The bottle receiving support I 8 is provided with
a series of division walls 24 which properly po
40 sition the dirty bottles l5 disposed thereon, and
is secured to the arms 29 by pivots 25 and is ad
justablerelative to these arms by means of set
screws 26, so as to insure proper coaction of the
support l8 with the open ends of the bottle re
ceiving pockets I4, during'normal operation of the
machine. The support I8 is adapted to receive
the dirty bottles l5 with their open ends upper
most, as shown in Figs. 1, 3, and 5; and is adapted
to be swung toward the receiving pock'ets l4 and
simultaneously tilted so as to deliver the bottles l5
by gravity ‘and in partially inverted condition,
into the previously emptied, inclined pockets l4,
as shown in.Fig. 2, when the conveyor I2 is’ at
rest. The carrier arms 20 are also made adjust
able in length so as to insure proper disposition
and movement of the support l8, and the actu
‘ ating lever 22 for the shaft -2| is attached to one
_of the ends of this shaft beyond the adjacent sup
porting plate l9, whereas the safety stop mecha
60 nism is-carried by the other supporting plate l9.
. The safety stop mechanism which is shown in
bottles I5 laterally away from the front of the
washing machine.
The cross-head 40 has a through shaft 45 which 40
is pivotally connected'to one end of an aim 41,
the opposite end of which is pivotally attached
to a link 48, the extreme lower end of which is
pivotally connected to the upper end of the con
necting link 23. ' The upper end of the link 48 is 45
secured to one end .of-an upper cross-shaft 49
which is journaled in bearings supported on the
main casing I0; and an actuating lever 50 is
swingably mounted upon the opposite end of the
shaft 49 and coacts through a. safety spring 5| ‘
with a second lever or arm 52 which is rigidly
connected to the shaft 49. The upper swinging
extremity of the lever 50 carries a roller 53 which
is cooperable with a cam 54 carried by the main
drive shaft 55; and'the assemblage is such that 55
when the shaft 55 revolves, the cam 54, during a
minor portion of each revolution, will swing the
lever 50 back and forth about the axis of the shaft
49, this _motion being normally transmitted
through the spring 5| and arm 52 to the rock
shaft'49 and from the latter through the-link 48
detail in Figs. 4, 6, '7, and 8, and also partially in ' to the bottle ejector and loading mechanism
Figs. 1, 2, and 3, comprises a horizontal cross-bar through the arm 41 and connecting link 23, re
21 mounted upon the upper ends of longitudinally spectively. The bottle loading and ejector mech
adjustable rods 23 near the open ends of the anisms are actuated only when the conveyor l2 65
pockets l4, so that the bottles l5 delivered by and pockets l4 are at rest, and if either of these
gravity from the inclined support |8 to the in
mechanisms meets an obstruction which prevents
clined receiving pockets l4 will normally pass normal operation thereof, the spring" 5| will be
freely over or above the barv 27; but this bar is so compressed su?lciently'to permit swinging of the
located that if a bottle |5 fails to fully enter its lever 50 by the cam 54 upon the shaft 49, with
receiving pocket l4, as shown in Fig. "I, the pro ' out imparting motion to the arm‘, 52, shaft _49,
jectingbottle end will strike the bar 21 during and link 48, thereby avoiding possible damaging
subsequent advancement of the conveyor l2. The of the machine.
rods 28 are properly guided by the casing l0, and
The main drive‘for actuating the conveyor l2
75 the lower ends of these ‘rods are pivotally con
and the washing mechanism, also serves to actu 75
2, 124,428
ate the bottle delivering support 43 and the dis
charge conveyor 45; and this drive comprisesthe
main shaft 55; an electric motor 56 drivingly
rollers I3 and advance the pockets I4 as above
connected to the shaft 55 by gearing 51; a crank 58
rotatable by the drive shaft 55; a pair of oscilla
the cam 54 becomes effective to swing the levers
tory' arms 59 pivotally mounted ‘upon a hori
zontal shaft '60 carried-by the main casing ID; a
‘ tie rod 6| interconnecting the swinging ends of
the arms 59; and a motion transmitting connec
50, 52 and the rock shaft 49, thereby simultane
‘ously transmitting motion through the link 48
to the cross-head 4|] and bottle ejectors 39, and
Each of the arms 59 has a side lug 63 which
is engageable, during forward swinging of the
arm, with an adjacent pawl 64 suspended from
the rod BI, the pawls being engageable with the
adjacent conveyor rollers I3 at the ends of the
rows of pockets I4, and the throw of the crank
58_being such that the conveyor I2 is advanced
by intermittent steps each-equal to twice the dis
tance between the successive pocket rows or roll
to the bottle loading support I8 through the
connection 23, lever 22, and carrier arms 20.
The arm 59‘ on the side of the machine
support I8 with their open ends uppermost, as
indicated in Figs. 1 and 3, when the support I8
is at rest: and as‘this support is carried toward
the adjacent inclined row of pockets I4 by the
swinging movement of the carrier arms 20, the
dirty bottles are partially inverted and are de
livered into these inclined carrier pockets I4 by
gravity, as clearly indicated in Fig. 2. Simulta
neously with this delivery of dirty bottles I5
into the lower row of inclined carrier pockets
adjacent the cam 54 is provided with a knuckle
I4 coacting with the inclined rail portions H,
65 forming a swivel through which a rod 66 ex
the ejectors 89 are moved upwardly in an in
tends, and the lower end of this rod is connected
to the shaft 44 by means of a lever 61 in such
manner that when the arms 59 swing back and.
forth, the bottle discharge support 43 is simul
taneously oscillated. The effective length of the
rod 66 is adjustable so as to properly position the
support 43, and the upper end of the rod 66 is
embraced by a spring 68 which normally trans
mits the motion of the arms 59 to the rod 66, but
which permits relative sliding of the rod 66
within the knuckle 85 inv case the support 43
clined direction from the position shown in Figs.
1 and 3. through the adjacent upper inclined
pockets I4, as shown in Fig. 2, thereby positively
pushing the ?nally washed bottles I5 from the
upper row of inclined carrier pockets I4 coacting
with the rail- portions II. It is to- be noted that
this ejection of the clean bottles is effected simul
taneously with the admission of dirty bottles to 30
the lower inclined pockets, and there is only one
row of intervening carrier'pockets having pre- ~
liminarily washed bottles therein, interposed be
tween the loading row and the ejecting row of
encounter an obstruction, thereby again protect~
35 ing the mechanism against damage.
The dirty bottles _ I5 may be positioned upon the ‘
tion 62 joining the crank 58 and the rod 6|.
ers l3.
During the period of rest of the conveyor I2,
pockets I4.
‘ division partitions 69 as in the case of the lower
ejection of bottles to and from alternate rows
support I8, and the shaft 44 is provided with a
weight ‘I0 cooperable with an adjustable stop
40 screw ‘I I, for returning the support 43 from bottle
delivery to‘ bottle receiving position. The ?nal
discharge conveyor 45 may be driven from any
suitable source of power and has a stop plate ‘I2
The loading and’ ejecting mecha
nisms may therefore be brought closely adjacent
to each other, and the simultaneous loading and
The bottle support 43 is again- provided with
of carrier pockets is made possible by the driving
mechanism which advances the conveyor by steps
equal to twice the distance between the successive
pockets‘ I4.
In‘ the event that a dirty bottle. fails to prop
erly enter one of the empty receiving pockets I4,
washed bottles I5 upon the conveyor 45 when and subsequently projects from the pocket as
indicated in Fig. '7, the safety stop mechanism
they are righted and discharged from the sup
illustrated in Figs. 6, '7, and 8 automatically
During the normal operation of the improved‘ comes into action. The projecting bottle will
bottle washing machine, the electric motor 56 is engage the cross-bar 21, as indicated in Fig. '7,
driving ‘the main shaft 55 through'the gearing. and will exert downward pressure thereagainst. 50
I1, thereby simultaneously revolving the cam 54' This pressure is transmitted through the. rods
and the crank 58. The revolution of the crank 28, lever 29, and pivot shaft 30 to the arm 3|,
58 is such that the pawls 64 coacting with the and will cause this arm to be moved out of the
rocker arms '59 will. advance the successive rows slot 32 and to actuate the motor control switch
55 of pockets I4 of the endless series by a step equal 38 through the lever 33 and stem 31. After the
to twice the distance between successive rollers obstructing bottle has been removed and the
I3 during each complete revolution of the crank arm 3| is restored to contact with the notch 32,
58, thereby causing the bottles I5 to travel twice the machineis again ready for normal opera
through the soaking and. washing ‘zones of the tion; and this safety stop mechanism prevents_
possible damage of the loading mechanism dur 60
machine before they are ?nally ejected there
from. The disposition of the cam 54 relative ing such abnormal conditions.
After a row of clean bottles has been ejected
to the crank arm 58 is ‘such that the loading and
along the forward edge thereof for con?ning the‘
ejector mechanisms are actuated only when the ' as just described, and a row of dirty bottles has
conveyor I2 is at rest, so that the pockets I4
' associated with the inclined front portions I‘!
of the rolls II are stationary during such load
been delivered to the previously emptied row of
carrier pockets I4, the conveyor I2 is again ad 65
vanced to bring the row of previously emptied
ing and ejection operations.-- __When the crank ' pockets into position for the reception of dirty
arm 58, which ,moves in a clockwise direction, as
indicated in Figs. 1, 2, and 3, moves the pawls 64
rearwardly, these pawls merely ride over the
intervening rollers I3 and do not advance the
conveyor I2; but when the crank arm 58 moves‘
these pawls 64 forwardly, the pawls drop be-.
tween two of the successive rollers I3 and there
75 after immediately engage the forward of these
bottles. While this advancement is taking place,
the rocker arms 59 transmit motion through the
rod 66 to the shaft 44 and support 43, thus car
rying the support 43 from the position indicated
'in Figs. land 2‘ to the position illustrated in
Fig. 3. The ?nally washed bottles I5 are thus
simultaneously righted and delivered upon the
conveyor 45, and this discharge of the clean bot 76
, 4
tles takes place while the conveyor l 2 is advanc
1. In a bottle washing machine, an endless
ing the carrier pockets ll one complete step. series of bottle carrier pockets, an endless con- ‘
‘During the receding operation of the rocker arms veyor movably supporting said pockets, rectilineal
59 and pawls 64. the weight 10 becomes effective ' guide rails coacting with said conveyor to cause
to return the support 43 to bottle receiving po
at least three successive pockets at the same end
sition, and the spring 68, coacting with the rod of said series to simultaneously assume parallel
66. prevents possible damaging of the machine
similarly inclined positions-normal to said guide
in case the movement of the support 43 becomes
rails and with their bottle receiving and discharge
It will also be apparent that the
ends uppermost, means for advancing said con—
spring 5| acts as a safety feature for protecting
veyor to. intermittently advance said pockets, a.
the ejectors 39 against possible damage, and these ' pusher movable upwardly into said, pockets to
springs 68, 5| cooperate with the ‘safety stop lift clean bottles upwardly and at an oblique angle
vmechanism of Fig. 7 to effectively protect the
entire machine against breakage "due to abnormal
conditions of operation.
From the foregoing description it will heap
parent that‘ the present invention» provides an
improved bottle washing machine which is ex
tremely simple and compact in construction, and
20 which is, moreover, highly e?icient in operation.
By virtue of the fact that the bottles are trans
ported by steps equal to-twice the distance be
tween successive pockets, the loading and ejector
mechanisms may .be disposed closely adjacent to
each other at the same end of the washing unit,
and this loading and ejecting of the bottles is,
moreover, facilitated by causing the bottle re
ceiving and delivering pockets to coact with a
common inclined 'rail portion I1 and to assume
parallel inclined positions during the loading and
ejection. The entire operation is automatic, and
all mechanisms may be actuated from a common
driving source, thereby permitting operation of
the machine by a novice and with minimum at
out of upper of said inclined pockets while at
rest, and 'a support swingable toward the upper
end of lower of said inclined pockets while at rest
to tilt and to slide dirty bottles into the receiving
pockets _by gravity at the same oblique angle and
directly beneath the unloading, zone, there being
but one pocket of said series between the dis
charging and the bottle receiving pockets.
'2. In a bottle washing machine, an endless
series of an odd number ofbottle carrier pockets,
an endless conveyor movably supporting said
pockets, rectilineal guide rails coacting with said
conveyor to cause at least three successive pockets 25
at the same end of said series to simultaneously
assume parallel similarly inclined positions nor
mal to said guide rails and with their bottle re
ceiving and discharge ends uppermost, means for
advancing said conveyor to intermittently ad 30
.vance said pockets by steps equal to twice the
distance between successive pockets, a pusher
movable upwardly at an oblique angle into upper
of said inclinedpockets whilev at rest to slide
tention and expenditure of power; The improved
clean bottles upwardly and forwardly‘ therefrom,
machine has proven highly successful in actual
and a support swingable toward-the upper end
' commercial operation, bothvfrom the standpoint
‘ of durability and elimination "in breakage of
and simultaneously with the pusher movement
of lower of said inclined pockets while at rest
to tilt and to slide dirty bottles into the receiving
Dockets by gravity‘ at the same oblique angle and
It should be understood that it is not desired
to limit the present invention to the exact de
tails of construction and to the precise _mode
' directly beneath the unloading zone, there being
but one pocket of said series disposed between
_of operation herein shown and described, for
the discharging and the bottle receiving pockets.
various modi?cations within- the scope of the
claims may occur to persons skilled in the art.
It is claimed and, desired to secure by Letters
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