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Патент USA US2404460

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July 23, 1946.
Filed Jan. 15, 1945
5 Sheets-Sheet 1
' I zdwin Bearer.‘
July 23, 1946.
Filed'Jan. 15, 1945
5 sheets-Shea?‘ _2
a; '
' O
July 23, 1946. -
Filed Jan. 15, 1943 v
5 Sheets-Sheet 3
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' July 23, 1946.
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Filed-Jan. 15, 1945
5 Sheets-Sheet 4
Patented July 23, 1946
Edwin .Ro'lker, Baltimore, Md., assignor to Crown
Cork.& Seal Company, Inc., Baltimore, Md., a
‘corporation "of New York
Application January 15, 1943, Serial’No. 472,505
16 Claims. (Cl. 198-179)
The present invention relates to articleha'ndl
conveyor is provided or the articles are moved
downwardly along a chute. If two draer con
ing apparatus.
An important object of the invention is to
provide a conveyor which will grip articles to sup
port them in every ‘possible position which the
veyors are used, space requirements and costs
are increased and the same is true if a lifting
type drag conveyor and a chute are used; 7 In
conveyor may assume.
addition, if ‘a chute is used there is the pos
It is necessary in numerous ‘plants to move ar
ticles upon the upper run .of a conveyor, then
around the end of .that run and along a lower
sibility of scratching the articles.
An important object of the present invention
brought downwardly along a return run. In ‘ad
dition, its construction is such that‘if an oper
is to provide a conveyor of such design that one
run. Heretofore, this has "been accomplished 10 run thereof may be used for lifting ‘articles while
the other run may-be used for moving ‘articles
by means of a conveyor equipped with drags or
pockets and having its ends and ‘lower run en
The conveyor of ‘the present ‘invention is so
closed by a frame .orother form of casing which
holds the articles against dropping, the drags
constructed that articles can be ‘placed ‘thereon
or pockets being relied upon to advance the ar 15 and moved upwardly on one run and then
However, unless the ‘drags or pockets are
of a form to exactly ?t about each article, and
the. casing is so shaped ‘as to» closelyengageeach
article, such an arrangement cannot ‘be ‘relied
ation is to be performed upon the ‘article at any
point along the travel of the conveyor, the article
upon to ?rmly hold the articles ‘in ade?nite posi 20 can be “removed from the conveyor and moved
tion with respect to the conveyor. Obviously, if
to the machine which is to operate thereon, for
the drags 0r pockets and casing are designed to
example, a machine to ?ll a container article,
closely engage a particular article, the structure
and then the article can be returned to the con
cannot be used for articles of other shapes or
sizes. Furthermore, whenever a stationary ‘cas
ing element is relied upon to hold an article upon
or against a conveyor, regardless of whether the
article is held in a de?nite position, the article
veyor and carried to a further point or returned
as to the point of origin.
In accordance with the above, a further ob
ject of the invention is to provide a means for
operating the gripping devices of an article grip
must be dragged along the stationary casing. ‘If
ping conveyor and which operating means can
the article is of a type which would bezdamaged 30 be positioned at any point along the path of
by any scratching which might result from this
travel of the conveyor to operate the gripping
dragging, a casing arrangement is altogether run
devices to either article gripping or article re
In some instances, articles are held in a de
A further object of the invention is to pro
sired position with respect to aconveyor by ‘hav 35 vide a gripper operating means which is of such
ing the article simultaneously engaged by the
form that it will not impede the operation of
opposed run of a second conveyor.
the conveyor element and wherein the conveyor
and gripper operating means are of, such con
struction that neither can be brokenby the con
Such an ar
rangement is not economical of either space or
cost and, in addition, cannot be readily adjusted
to handle articles of di?erent types and sizes.
Another object of the invention to. provide a
conveyor which will grip articles and move them
in any position without their being scratched
tact of one with the other.
The gripper operating means included in the
present invention and the grippers carried by the
conveyor are of such design that ‘no parts thereof
or otherwise marred.
have a sharp or sudden impact with each other.
A further object is to provide .an article grip 45 The invention thereby avoids objections to the use
ping means which will ?rmly Iholdarticles of
of gripping devices operated by impact with a
numerous sizes and shapes upon conveyors with
fixed trip. The gripper operating means of the
out the necessity of any adjustment of the con
present invention moves with the conveyor ele
veyor or gripping means.
It is necessary in some plants to move articles 50 ment so that the operating means and the con
veyor element cannot have any sudden contact
vertically, for example, from one floor to an
with each other. It will be noted that the gripper
other. The arrangements ordinarily used for
operating means need only extend along the‘por
this purpose comprise a conveyor of the drag
tion of the conveyor element path at which the
type to lift the articles. In order to move the
articles. downwardly, either a second drag timev 55. gripping elements areto be operated. That is,
the gripper operating means need not be coex
tensive with the conveyor element.
a visual inspection, it is highly desirable to
thoroughly wash each such container before it is
Another object of the invention is to provide
' ?lled and then take such action as'is necessary
an arrangement whereby an article delivering or
to drain the washing ‘liquid from the container.
By the present invention, the conveyor struc
removing mechanism may be maintained in syn
chronism with a conveyor regardless of the posi
tion of such mechanism with respect to the point
5 ,
from which the conveyor is driven.
‘ -
ture included herein may be used to move metal
containers beneath a jetting device which will
flow a stream" of water intothe container while it
Whenever articles are to be placed upon an
is uprightv and then invert the containerto drain .
article gripping conveyor or any conveyor pro
the Water therefrom. The container can be held
vided with de?nitely located article supports, it“ ‘ in’an inverted position for such time as is neces- .
is necessary that the article feeding mechanism
'sary to enable all of the water or other washing
be operated in exact synchronism with the con-‘
liquid to be thoroughly drained and can then be
restored to upright position in readiness for the
This is usually accomplishedv by driving '
the conveyor and the article feeding mechanism
from a common source of power.
?lling operation.
~ 7 ‘A further object of the present invention is the
Some di?icule I
ties may arise from such an arrangement if the
provision of a conveyor structure whereby articles
feeding mechanism is positioned at a point along
can be maintained in spaced relation to each
the path of travel of the conveyor which is dis
tant from the source of power, since any stretch 20
A still further object is the provision of a con
ing of the conveyor» may cause the feedingmech-;
veyor which will move articles in exactly spaced
anism to be out of synchronism. However, this
relation and which is capable of handling articles.
can usually be adjusted for if the feeding mecha-‘
of different sizes and shapes. 7' ' .
nismjis to be always maintained'at the same point
. It is frequently desirable ‘to move articles on a
with respect to the conveyor.
25 conveyor in exactly spaced relation and a con
The, present invention contemplates that the;
veyor which will grip articles’ is particularly e?i
feeding device may be positioned at any desired
point along the course of the conveyor in- accord
cient for this purpose, since the articles canbe
moved through anyv plane without varying their‘
spacing. ,However, onedi?‘iculty of article grip-‘
ancewiththerequirements of the plant in which;
the apparatus 'is- positioned and some of thesev
points may beat a substantial distance from the.
driving point for the conveyor. For this reason.
the invention includes a driving connection be
tween an article feeding means and a conveyor
whereby the former can be driven from an adja-1
ping conveyors is that theywill handle an article‘
of but one size or’shape. As has been stated’
above,rthe conveyor structureof the present in
vention is of such design that it will handle nu
merous size or shapes of articles and maintain all
- of them on spaced centers without any adjust
cent Vportionofthe‘ conveyon By this arrange-.
ment of the gripping means, As a result, the .con-:
ment, the feeding mechanism will be positively
veyor structure can be used to move articles of
different sizes or shapes to a mechanism which‘
portion of the conveyor once the article feeding,
will perform an operation upon .the article at a
device is installed. In addition, the necessity’ of 40, ?xed point. The'conveyor of the present inven
extensiveshafting to drive an article feeding
tion can also be used to move articles to a desired-v
maintained in‘ synchronism with'the adjacent‘,
means'from adistant source of power is elimi
transfer point in spaced relation.
' Other objects and advantages of the invention
It willbeunderstood that while the above ob-, will be apparent from the following speci?cation
ject and structure has been discussed in-connec» 45; and accompanying drawings.
tion with article feeding means, it is likewise ap
plicable to article- removing means or other de
, Figure '1 is a front elevation of the apparatus
vices to be synchronizedwith a conveyor.’
' Figure 2 is a top plan View of a portion ofzthe
A further object of the invention is to provide a
drive connection between a conveyor element andv 50
an article delivering or~removing means which
. ‘Figure 3 is a fragmentary view showing. an
In the drawings:
of the invention.
Figure 5 is a detail perspective showing one .
gripper of a gripping device.
eludes an arrangement to disengage the drive be
tween the conveyor and the article delivering and
Figure 6 is a sideview of a gripping device
showing the manner‘in'which it is supported and
removing means before damage can occur from a’
jammed article. The invention includes a'readily
operable mechanism to enable the drive to again
be synchronized.
Figure 7 is a horizontal sectional view on the
line '|—'! of Figure 3 but showing the gripping de
'A still further object of the invention is to pro- 5
vide an arrangement includingthe conveyor of
vice operated to opened-position.
the present invention which will enable containers -
8—8 of Figure 2.
' Figure 8 is a vertical sectional View on the line
‘ '
Figure 9‘ is a View similar to Figure 8 but with
. to be washed and drained.
In the ‘?lling of metal containers it is highly
desirable that the containers be washed before
the gripping devices omitted.
~ Figure 10 is a transverse vertical sectional view
on the line I0—I0 of Figure 2, and
Figure 11 is a vertical sectional view on the line
1 they are ?lled, just as is the case with glass con
tainers. . Glass containers are always washed and
then inspected for foreign matter before they are 70‘
While metal containers are always new ‘
Figure 4 is a top plan View of an article gripping '
Thejabove-mentioned stopping mechanism in-f 55
1 ?lled.
article gripping device in front elevation.‘
event that articles become jammed at the delivery
or removing points.
7 will cause the apparatus" to be stopped in the
ll--ll of Figure 10.
‘ As has been stated above, the conveyor of the
‘ material, dust or’ other foreign material may settle
present invention may be used to move articles to '
‘ therein during shipment between the manu- ‘
facturing plant and the ?lling plant. Since the
and from various points in a plant and may also
be used to move articles while’ upright, invert
1 interiors of metal containers are not subject to
- them, and then restore them to upright position. ‘1
ones-goo I
way, dust or other foreign matter L-within ",aI-QBM
The-drawings illustrate the latter use of the. con
veyorand‘, more particularly, show the conveyor
operating ~toicarry upright cans ‘beneath a ‘water
jettingz/devicexwhich. partially .?lls- {them with wa
ten ':to remove. dust from ‘their interior. When
thus‘ used, the conveyor next tilts and inverts
the. cans. to .swirl;the=.water within them,,. the ,in
maybe washed out beiore the can is filled; ‘ ‘ '
The can will move along. :the. bottomrun. of
gripping conveyor .20 so as ‘to thoroughly drain
and "will then-be turned uprightjas shownatithe ,
left :of Figure 1:. The gripping device 24~will
then. move adjacent the gripper operating ‘ele
ment 129 which will opendevice 24'so that the
venting‘ action ?nally causing- the water ‘to drop
container-‘will be free for- removal .by the ~out
from the. cans. The conveyor then; :holds the
cans inverted :for a period. long enough to enable 10 feed dial. 32'. The latter will replace the clon-v
tainer on straight-line conveyor 21:.
saltwater 1130; drain ‘therefrom. and ?nally restores ‘
In more detail, ‘when the conveyor: of the in
vention is used witha jetting device, the sup
i It: is-thought: that the description of the con
porting or base portion oi‘qthe. .apparatusrwill
structionof the apparatus-in usefora‘ietting and
draining operation will also make clear how the 1-5 include a series of standards. 401 (Figure I) "which
them to uprlghtgpositionr
>- -
support horizontal members,ior example, her-1
tically spaced tubes ‘4i carrying journal sup‘
ports. '42 (Figure 9:) in which shaits?tcarrying
large sprocket wheels 44 are‘ journaled. (One or
conveyor :canbe used for, other purposes. '
The apparatus of the present invention. and its
operation may be; generally described as fol-lows:
Referr'mg to Figure 2, containers, or other articles
Cito behandled on the gripping conveyor or. ele 2.01 the shafts 43~ driven by‘ a motor through con‘
nections not shown, and the other shaft {'43 is
ment '20 of the invention. are moved toward conveyor 20 upon a straight line conveyor 2|. A tim
an. idler. "The sprockets 44 carry the gripping
ing device 22 of spiral form places the incoming
containers in pockets of an infeed dial 23 which
rotates in time with the-gripping conveyor’ 20.
conveyor or element ‘29 formed of a plurality of .
'> the. links; equi-distantlyl; spaced, are: pivotallyg
The gripping conveyor 20' is formed of a link. chain
joined by pins ‘or’ studs 4.6 which, as'nshown: in"
links 4.5. Asfisindicated
Figure 91, certain of '
Figure '6, secure the backing ‘plates'25 :of‘the
whiclnasbest shown in Figures 3 to 7, has aiseries
gripping devices 24. to the gripping conveyor '20.
otvgrippin-g'devices. 24 secured thereto. Each’
Figure 3 shows a backing plate 25in front‘ele'
gripping device may be generally described as
comprising‘a backing plate25 secured to a link of so vation' and it will be observed from this view
that the plate is of generally‘rectangular forma
chain _21], the plate '25 standing against a lateral
tion but may have its corners bevelled as indi
face .of the ‘link. Each backing plate 25 carries
cated at 4'!‘ so that it may readily enter be
a pairof movable plates 26 on its outer face, the
tween upper and. lower grooved guides 48'. suit.
plates 26 being normally held flat against backing
plate’ '25 by springs: or other resilient elements ‘ ‘ ably‘ supported upon the base- portion. of the: ma—
generally indicated by the numeral 21. Each
The grooved guides 48 are ordinarily
only provided ‘along ‘such portion of the run oi
movable plate 26 carries oneor more forwardly
conveyor 20 as moves opposite the gripper oper
projecting gripping arms 28which are bent to
ating chain 259. That is, the purpose of the
ward each other, as shown in Figure 4.
‘As: is best illustrated inFi-gure 2, a gripping de 40 guides 48 is simply to hold the gripping ele
‘ments. 24 in the desired plane while they are
vice operating chain or element 2.9 extendsal‘ong
being operated by the operating chain 29. As
side a‘ portion. of. a run of gripper conveyor 20',
indicated in Figures 2 and 8, a supporting- plate
operating element 29 :moving in a plane at right
49 is provided beneath the portion of the run
angles to the plane in which the gripping con
of gripping conveyor 29 at which articles are
veyor 2|]v moves. For example, in the illustrated
presented to or removed from the gripping de
embodiment, as‘ is best ShOWn in Figure 2, the
vices. For example, in the present embodiment,
the supporting plate 49: extends beneath the in
feed. and outfeed dials 23‘ and 32 to support con
gripping‘ conveyor 20 lies and moves in a vertical
plane, while the gripper operating element 29 lies
and moves in. a horizontal plane. 'The operating
element 29 carries lugs 311' which, as best shown 50 tainers C while moving with the dials and during the time that the containers are not actually‘
in Figure '7, are adapted to move through aper
gripped and heldby the gripping devicesv 24.
tures in the backing plates 25‘ of the gripping con
veyor 2.0 toswing the; movable plates 25. apart and
thereby spread the gripping arms v2Z8.‘ Figure. '2
'Each backing plate 25 is provided with verti
cally angled ears 50' at the upper and lowerpor
illustrates how the gripping arms 28‘ of the grip
ping device will be held open‘by lugs 39 of operat~
ing element 29 at a point opposite the infeed dial
23. The same ?gure also illustrates how the grip-—
ping-arms 28 will be moved toward each other by
the. springs 21 to grip a container C immediately
after a gripping device has moved away from the
operating element 29.
As indicated above, in the illustrated embodi
.. tions of its side edges, which ears serve asfu‘lcrum
ment of the invention, after‘ upright containers-C‘
are received by the gripping conveyor 20, the lat
ter moves‘ the containers to'the right in Figure 1
and beneath a jetting device designated by the
numeral 3|. The jetting device 3| includes .a
or pivot points. for the “movable plates 26 as
hereinafter explained.
(ill '
As is ‘best shown in Figure 6,. the two movable
plates 26' of each gripping device 241 are urged
to a position ?at against the backing plate25,
i. e., to lie alongside each other in a single plane,
by springs‘ 21 mounted upon studs‘ 51 threaded
in the backing plate 25. and extending through
slots-52 (Figure 5;)‘ in the movable plates. The
inner ends‘ of the springs 51 bear upon the outer
surfaces of the vmovable plates 26 near’ their
Aitera can has received water the gripping con
veyor 20. will turn the can upside down so‘ that
abutting edges,‘ while the outer ends of the
springs bear. upon washers backed‘ by. cushion
members 513 which extend ‘past the outer'endr
of'each stud 51. Twosprings are ordinarily pro
vided for each movable plate 26, and-as illus
trated in Figure 3, the vsprings associated: with
each plate 2 6 are. vertically-"spaced.
Adjacent their outer edges the movable plates
the water will-drop from. thecQntainer. In. this
> 26 are provided with threaded apertures, which
plurality of nozzles respectively adapted to move
into alignment with. the mouth of a can or other
container to partially ?ll the latter with water.
receive- the inner ends of ' the ‘grippingi arms ‘28.’
It is found desirable to'equip oné- backing platev
of a pair-with two gripping arms 28, one ‘extend
in‘g fromf the extreme upper and lower portions
of 5the plate, :while the other movable plate-is‘ 7
provided-with a single gripping arm positioned
'7 intermediate-the gripping‘ ‘arms of the'coacting
movable plate. The outer! ends of ‘the gripping
The gripper operating ‘.element 129-'is2driveri
solely by the engagement of its lugs 30' withi-the’
slots 68 in the backing; plates’25. "Thi's'arrangea
ment insures that the gripping conveyorf‘andithé
gripper operating element will ‘move-at‘ vthe same
speed. A
It is necessary that aninfe’ed’ :dia1-such-"as123
and an outfeed dialsu'ch‘as 32 :beldriv'enfiin' exact
synchronism with the-‘gripper c'onveyorZlLiv How-7
arms ‘are bent'toward each other, as illustrated
in‘ Figure 4, sol that vthe articlegripped by the 10 ever, if the gripper‘conveyori? is ‘relatively long
and a dial is positioned intermediate itsrlength V
arms will be partially encircled and pressed. in
against the- stops 53",‘ in ‘the ‘manner shown in
and driven through rigidi'shafting' from: the same"
Figure 4.~ vThe ends of "the armslarecpreferably
covered? or faced‘ with a cushioning‘ material.‘
It-will' be'noted from Figure 3 that the stops
53"as'soci'ated with one plate 26' are vertically off
set with respect to’ those of»v the other plate 26;
' Thisarrangement, in conjunction with the use
point at which the'conveyor-is' drive'ri;ia~n~yi stretch- -
ing or slackening off the conveyor 28 would7result
in the dial being out ‘of 'synchronismlwith'fthe
portion of the conveyor moving adjacent‘th'e1d1al2
For this reason, it is desirable to drive an infeed
or outfeed dial from‘ the portion .of the conveyor
of vertically offset gripping arms 28, enables the
28 immediately adjacent the dial; An arrange? ,
gripping devices to handlearticles of different 20 ment for drivin'g'a 'dial or'similar mechanismxiri
heights; , For ‘example, an ‘article only‘ tall I
this manner is'illustrated in Figures 9 to 11111-2:
enoughto contact with the lower left-handistop'
Referring to Figure 9, a' large sprocket'lwheel
53 of Figure 3 would be contacted by‘one; arm
G2, suitably'journalled in the stationaryiuframe;
28 and pressed against that stop 53 and the
engages the upper run of grippingiconveyoni?
' lowerright-hand stop 53' so as to be'?rmly’ held 25 atv a point adjacent the'dial' 23 as:indicated;§in:
7 in thevv desired position; The fact that the grip
Figure 1." The shaft 63wwhich carries sprocket
ping devices canrhandle articles‘ of greatly vary;
ing ‘diameters Will_be clear from Figure 7. Be
cause of these factors, the conveyor 20 can
»handle articles of numerous " sizes and shapes
with no ‘adjustments whatever.v
; '
The'gripper operating element 29 is preferably
formed'of a link chain which moves about sprocket
, wheels 55 in'the manner shown in Figure 2. It
will:be observed that the chain 29 moves in- a
plane normal to the'plane in which the gripping
conveyor 29 ‘moves. ‘The vertical shafts 56 which
carry the sprocket wheels 55'are J'ournalled in a
casting 51, best shown inFigure 10, and casting
51 also supports a small sprocket358 about which
the sprocket chain 29 moves.- The small sprocket
58 ,is carried fby'a stud 59 which is adjustable
toward and from the adjacent large sprocket: 55
so as to serve as a take-up element. As best shown
in Figure 2, the supporting casting 51 is mounted
upon a rod 60 threadedly secured to ears 6| of
theba‘se or frame vof the machine so that the
positionof gripper operating element 29 may be
_ adjusted'longitudinally of the path of movement
of the conveyor 20.
62 also carries a pinion 64 which is geared, through‘
an intermediate 'pinion, with" a"pinionw55,jkeyed '
to a sleeve or hollow, shaft? element 66, journalled.
30 in the frame of the machine. ~'S1e'eve..;6i6 {has ‘a
plate 6'! keyed to its outerend and; as bestshown
I in Figure '11, plate 6T'is'provided with two-trunz-t
‘nions 68 in which a short Shaft’x69 carrying a
worm gear 18 is journalledi 'Worm‘i-gear".‘Hleri-v
. gages a worm wheel 12 which has'a rotatable?t
on a stub shaft’ 13' which extends FbackthrOugh
the hollow shaft 66. Stubsh'aft 'l'3'hasa‘pirr1i14:
extending diametrically therethrough outwardly;
of worm wheel 12] "A housing 15-: 'iSFSECUIB'dFtO
the plate 61 and this housing carries‘ arspri'ngilli
whichlbears ‘on a ring TI freely mounted‘on the
outer end of, shaft ‘l3. The inner face‘ of ring-Tl:
bears against pin 14 to thereby hold‘ stub "shaft
13 inwardly or to the left in Figure 10. '. In such
position; ‘the ends of pin 14 will engage ‘diametri-~
cally spaced notches 18 in the hub 12a of worm
wheel 12. Obviously, so long as‘the vends or p'in:
‘M are held in the notches ‘i8, stub shaft 73>will
be rotated with the worm ‘wheel ‘l2;~ 5' 1
'It will be noted that the engagement"'ev
Gripper» operating element 29 has certainofiits
links providedwith outwardly projecting'r'ounded
worm gear '50 with the worm wheel ‘[2 is simply :a'
key or locked connection serving to cause worm
lugs 30 ' which are spaced by a distance corre
wheel 12 to rotate with plate 61.’ That is,‘worm
sponding to the distance between the centers ‘of
gear 10 does not normally turn on its‘own' axis
the grippers 24 on conveyor 20. Referring ‘to Fig 55 to'drive worm" wheel 12 but revolves around the
ure 2, it will be noted that the lugs 30 are adapted
to project into slots 68 (Figure '7) in the backing
plates 25 of the gripping‘ devices 24 to engage‘ the
axis of. worm wheel 12.7
”- "
Stub shaft 13 has a collar vso secured to its »
inner end by a pin 8| and collar18il is'keyé'dto‘
rear faces of the abutting portions of the movable
an aligned, stub shaft 82. Stub'shaft82 carries"
plates 26 so as to turn the plates away from each 60 a bevel gear 83 at its inner end which meshes
other in the manner shown in Figure 7. vAs also
with a bevel gear 84 carried at the lower end of
shown in Figures, 3 and 4, hardened ball mem- , the shaft 85 which carries the, infeeddial 23. .The
bers ‘6! 'may be mounted in peened recesses in the
spiral timing device 22 is driven from the stub '7
plates 26 and with which the lugs may contact.
shaft 82 through an extensionr??- and a trainer;
The outer edges of the movable plates 26v will rock 65, gears generally indicated bythenumeral 811.; 21;;
uponthe ears 5!] at the side edges of the backing
plates ‘and against the pressure of the springs 2'1.
As is shown at the right-hand portion of Figure 2,
after an operating lug 38 has moved out of contact
Figure 1 of the drawings diagrammatically
shows in dotted lines the point lengthwise ofthe
conveyor 28 on which the axis of the stub shaft:
‘#3 lies. As is clear from Figure 10, the axis of the.
with a'gripping device 15, the springs 21 of that 70 dial shaft 85 lies on this same, line. It’ will liefv
gripping device will urge the movable plates to
observed from Figure lfthat the axis of the
ward the backing plate to bring the gripping arms
sprocket 62 from which stub shaft '13 and the‘dial"
28 into engagement with the outer portion of’ an
article and hold. it against thelcushion mem
shaft are driven, is‘spaced from the axis ofthe I
dial shaft by arelatively short distance which
75 depends solely upon the space required‘fo'r' the
» 12,464,460
1'10 I
Mrs-snubs cleartfrom'this-that'the dialiishaft as
7 ing and downwardconveying. functions. '
will-rotate" exactly in isynchrTonism' with: the ad
jacent portion of the gripping‘bfonveyor “the
cause it isdriven-from‘that portion.
-' As‘l shown'fin» Figurevl?, a pair of ‘ split‘ hanger
{brackets 95 and 96 sup'port'the dial? drivingm'e'ch
'ar’i'isrni including sprockets-~62; and‘ dial l23r'orlrhdial
'325; 3the "brackets 85: land ‘96‘ being! .suitablyrclamp'ed '
‘aboutthehorizontally extending tubes51‘4'l; By;
‘slightly loosening the clampingmeans‘of‘the
‘ ’
The‘ outfeed'dial ‘32-‘7will be driven from the ‘
gripping conveyor 2D»"-by' a mechanism identical
‘with that disclosed in Figure 10 and described
- brackets 85-” nd 9'6, the latter can ‘be moved
above,‘ except that this "mechanism will‘ not re
quire ‘the extension-"shaft- 86- and the .train- of
gears 8f’! to'drive a lspiraltimingdevice 221'}?
heretofore used to‘ respectively-[perform the lift
itrain-ofigears including the pinions 64 and 65.
lengthwise‘ of- ‘the run of gripper conveyor ‘20, to
make‘! such corrections as may belz'necessary with
V 'I In‘ the event that acan orother articlerbe'comes ,
iarfnmed adjacent‘ thetiming device -2-2§cr the-in
regard to ‘the position ofva dial with respect to
tlh-e gripper cenveyorjy ’
"fee‘d dial 23‘or atthe'momentof its transfer
from dial 23 to a'grippijng'device 24, the rotation ‘
' of the timing‘ device orfdia-l‘ "wilhibe impeded.
Spi-mmd timing
device ‘22”i’s of the'type ‘
described-in my “application for 1Article weighing '
and handling apparatusssjerial 'No} 438,163, ?led
April 8; 11942.1 1
This will prevent’the‘ free rotation of the stub
g'rae terminology’ used‘ inith‘e’ speci?cation is for ‘
shaft lit-with Ithe 'result-ithat, worm-wheel 12-,
the ‘purpose; or -description"1and " ‘not of ‘ illustra
driven from ~gripping conveyorilll, will rotate on,
stub 'shaft 13'tojcarry'thebevellednotches 18 in 20 tion, ‘the scope’ of ‘the'f-v'invent" ibeing"indicated
itshub'l’Za frorn'jbene'ath' the pin 1'4 ?xed‘ to shaft
,by' the claims,
T3.- "The action’fof worm whe'el'hub 12a‘ in running
past pin "will ,forcej‘pin?‘d and‘ stub shaft 13
to the right in Figure l0.‘ against the action of the
spring 1-6; ‘The collar}? pinned to ‘stub shaft
80' will cause the‘?ange ,88 on the‘ collar to oper-_'
ate a ‘switch, 89 to‘ stop ‘the driving motor of the
, "
As is shown in Figurell', the endof the short
shaft ‘.69 mounted on plate 61 is socketed to re‘
ceive an op'erating‘ha'ndle. Whenthe worm wheel
12 ‘moves past pin, 14 in the?manner described
I -‘
" '
In. an?article gripping means for conveyors,
a plate adapted’ to'be ‘secured-to the'conveyor, a
13V will likewise move to ‘the right and along the, _
second stubfshaft’8v2f Such movement of collar
pair of plates (positioned on one'face of said'?xed
plate for ‘pivotal movement with respect to the
latter, each of said'pivoted plates having a grip-'
ping arm extending outwardly therefrom, the ‘
ends‘ of the arms being bent toward eachrvother,
30 studs ‘extending fromsaid ?xed plate and through
apertures in the pivoted'fplates', the outer ends’
of said studs serving as stops against which arti
cles will be'pressed ‘by. said gripping arms, and
resilient means between said movable plates and
the outer ends of said studs-‘Ito urge said'movable
above,‘it will be necessary to apply an operating
plates against said ?xed plate'v; '
handle to the shaft 69 to manually rotate worm
gearjlll on its own axis ro‘retum'rne wormwheel I, 2'; In an article gripping means for/conveyors, '
12 to normal position,‘ i. je’.‘,,with Iitshub‘ notch 1-8 ‘ a plate adapted to be secured to‘ the conveyor, a
beneath pin ‘l4, thereby ire-establishing the ‘proper
timing or ‘theédriving mechanism._'
- -
a '
'I’he’outfeed‘dialj32 would be restored to normal
position with respect to conveyor-2D in the same
manner .as has beendescribed above in connection
with the Figure IOstructureQ
[The description set forth above as to the man
ner in which the gripping conveyor 20 and the
gripper operating element “cooperate will make
it clear that these ‘elements can be used together
pair’ of ‘plates ‘positioned on one face. of'sa-id ?xed
plate for pivotal movement‘ with’ respect to the
latter, each of said'pivoted plates having a grip
pingqarm extending outwardly therefrom, the
ends of the‘ arms ‘being ibent toward each other,
studs extending ‘from said ?xed plate and through
aperturessin the ‘pivoted plates,'the outer ends
of said; studs serving steps against which arti
cles willjjbe pressed by said gripping arms, and
resilient‘ means between‘ said‘ movableplates - and.
the outer ends ,of said’ studs-to urge said movable
as described, at any point along a gripper con
veyor 20. That is, if it is desired to move cans 50 plates against said ?xed plate, said ?xed plate
having forwardly projecting ears at its lateral
from the lower story of a plant to an upper story
edges on which said movable plates may pivot.
to be ?lled, and then return them to the lower
3. In an article handling apparatus, a moving
story, a run of the conveyor 20 on the lower story
a plate ?xed on said element, a pair of
would have an infeed dial 23 and an outfeed dial
32 associated therewith, together with an operat 55 plates movably carried by said ?xed plate, resil
ient meansto normally urge said movable plates
ing element 29. Cans could thereby be placed on
lie parallel with said ?xed plate, gripping arms
the gripping conveyor 20 by the infeed dial 23
carried by said movable plates, and means mov
and the gripping conveyor would move them to
ing with said element to contact said movable
the upper story, At this point a run of gripper
plates to position them at an angle to said ?xed
conveyor 20 could be provided with another infeed
plate and thereby move said gripping‘ arms apart.
and outfeed dial and operating element 29. The
a 4. In an article. handling apparatus, a moving
outfeed dial on the upper story would remove
element, a plate ?xed on said element, a pair of
cans from conveyor 20 in conjunction with oper
ating element 29 and the cans could be moved to
plates, movably carried by said ?xedplate, resil
be taken down to the outfeed dial of the lower
story. In other words, the single conveyor ele
ment 2!] with two operating elements 29 at the
ient means to normally urge said movable plates
to lie parallel with said ?xed plate, gripping arms
carried by said movable plates, said?xedplate
having" an aperture therein, and means to enter
the aperture in said ?xed plate and contact said
movable plates to swing them at an angle to each
other to thereby spread said gripping arms.
proper points can be used as a conveyor to carry
5. In an article handling apparatus, a moving
a ?lling machine. After ?lling they would move
to the infeed. dial of the upper story and would
be placed upon the return run of conveyor 20 to
element, a plate ?xed on said element, a plate
articles upwardly, and then return them down
movably carried by said ?xed plate, an'article
wardly, thereby replacing an endless conveyor of
the drag type and a chute such as have been 76 gripping element projecting from one face of said
12V "
_ in a direction ‘substantially 'atlright angles ,> to said
'r?xed plate ‘and past saidmovable'plate, an artiele
engaging element projecting outwardly; from one
‘?xed plate'andihrough. the aperture in-fthelat
(face of said; movable plate :to _be opposite; said »
‘ i?rstenamed gripping element, means to urgesaid
‘ ‘ "movable plate to a position'parallel to saidpr?kxed
--ter to; swing V-saicl pivoted plate ‘ witheiitespectato
‘ the; ?xed. plate. ‘So/that the gripping; elements-10f
1:" Fplatejand in ‘which its grippingelementis spaeed
'5 'aipre'determined distance from; said; other; ‘grip
ing element, and means movable inadirection
means- to ' urge, said; pivoted platesv to” airpositlyon
'"parallel with said ?xed platengrippingarms-oar
?ed by,‘ said QiYot?d rnletesland. means mqvable
elements/of the two. platesiwill be spread furiherv
in a direction substantiallyuat right anglestosaid
n article handling apparatus of’ the charg
s ?rst ‘plate toswing 15am; pivoted platesv upon the '1
latter' and» thereby ‘(spreads apart saidv gripping
V er?'deserihed in claim 5 wherein the movable.
element 75
I \ :‘plv. te i movin‘simeans ‘ ‘is carried/by
* 12- ;In an articleih'andline apparatus. a moving a '
velement, a v'plateiixed ontsaideelement. a pair. of ~
.plat_es_ pivotally mounted on ‘said- ?xed} p ' te,"
ubstantially at- right angles to said-?xed plate
imove said movable plate so that the gripping
the two plates willbé spread Vfurther apart.
o 13.‘.An article handlin‘g'apparatus ofytlie' ¢har+ ,
Anrarticl handling apparatus (if the that-‘ ' acter describedin'cilaitjn 12 wherein the means
ac 8;" tiéseribe'dvm cleimr?rwherein said ?sediplete‘ tomove the pivoted plateisioarried by an'ele~ v
.mentmov-ing with said'moving element. i, niapeltturé therein, and, seid'mOYePIe ?le-I
tfmoving means movesthrough :the‘ape'fture. ‘ 20 ' .1 14.v An, article mnming'apparatus ‘pf the char;
" 5i8."In an" article handling apparatus, a moving
actefd'escribéd in‘ claim 12 wherein said ?xed’
plate has-an apertutetherein‘and the means to ,
element, a plate ?xed on said element,__ ai-pair-vof
‘jmovi‘ng'with said movingelementq
plates movahlycarried bysaid ?xed plate, means
move" said! ‘pivoted plate vmoves through the aper
130311759.‘ staid“ movable'plates to! liievipai'alleli with ‘
said’u?xed'plate ‘and with their OppOsJed-Vedges'in
'15. Inian"
means for
conveyors; ‘
a;_j_predetermined'r spaged relationship} gripping: ?aiplate adapted ‘to be secured to the conveyonjfa
plate positioned on' one face-of-uisaid'v?xed'plate
i ’ arms ‘carrieduby said‘movable plates, and means
it‘ ~.mpvable"__ina direction’ substantially at right an; ‘ " iorlpivotal movement withjrespect to the latter,
glegito said ?rst plate to move theopposed’edges“ said pivoted plate . having a ‘gripping velement ex-i
' » of saidrrmovable plates further apart andthereby
spread apart said'gripping arms.
' "
"_;9...A'n articlehandling apparatu o the ener
movingwith said element.“
from said ?xed plate andthrough an aperture in
the pivoted plate, the‘ outer'end of‘ said stud serve
ingjasia stop, ,againstiiwhicharticles‘ willpbe t
aoterdescribed' m'cnim’ 8 wherein the movable
- plate'nioving means is earriedby' an ‘element
tending ‘outwardly therefrom, a', stud extending
pressed -by said gripping elemen‘t;'and resilient
"as means between said movable plateiandthe outer
.10. An article handling‘apparatus of the char
aoteridesqribedin claim it wherein’said‘?xed plate
hasten" aperture thereinfandisaid movable ele— 1
‘. men, methane-ans rewethrqugh the aperture;
endgof said stud to urge saidv movable'plate
against said'?xed plate.’
16- .In. an article handnneapparamisla mbvirig"
‘element, aplplate'?xredbn said element,'"'af plate
‘ t;;1.1-> lean eliticle handlihstappe‘raws e'meiing' 140' movahly carried by said ?xedf plate‘; resilient
element, a plate ?xed‘ on said-element; a plate
etippineelément Pmi'ec?ng series ?xed pleie
means toinormally urge said movable. plate tdlie
paralletwith said ?xed plate, a gripping element
carried by said movable'pla'tdand means ‘move " '
and; ‘past , said movable ‘plate; an‘ article ‘engaging
ing with said‘. element’ to ‘contact __said. movable
element projeotin'g outwardly from‘ said 7 movable 45 plate to position it at anyavngle tonsaid?xedplate V
1 plate tobebpposite said ?rst-named gripping ele}: ‘
tiori paralleltosaid ?xed ‘plate, saildj?xédp Plate ‘
gimme-acme therein, em; eensqmoebe ’
and thereby moveosaid erippineigélement"await ~
from saidn?xedplavte. /.
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