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Патент USA US2412370

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Dec- 10, 1946"
Filed April 17, 1941
10 Sheets-Sheet 1
E. 5. 7245 CHER
Dec. 10, 1946.
Filed April 17, 1941
10 Sheets-Sheet 2
Dec. 10, 1946.
Filed April 17, 1941
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Dem 10, 1946.
Filed April 17., 19,41
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Dec. 10, 1946.
Filed April 17, 1941
10 Sheets-Sheets
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Dec. 10, 1946.
Filed April 17, 1941
10 Sheets-Sheet 6
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Déc' 10, 1946.
Filed April 17, 1941
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Dec- 10, 1946. '
Filed April 17, 1941
10 Sheets-Sheet 8
-_ 2,412,370
Filed April 17,_ 1941 '
>10‘Sheet's‘—Sheet 9
Dec. 10, 1946. _ ‘
- 2,412,370
Filed April 17, 1941
10 Sheets-Sheet_l0
Patented Dec. 10, 1946
Eugene S. Tascher, Ingleside, 111., and William_
Bazant, Wyandanch, N. Y., assignors to Na
‘ tional Biscuit Company, New York, N. Y., a cor-y
poration of New Jersey
Application April 17, 1941, Serial No. 388,958
4 Claims.
(Cl. 93—3)
Our invention pertains to carton forming and
?lling machines.
ings to which reference is had for a full under
standing thereof.
The embodiment of our invention that we have
‘ Fig. 1 is. a top plan view of an automatic carton
selected for illustration is designed particularly
forming and ?lling machine embodying our in
vention,}this form of the invention embodying
matter that was ?rst disclosed and claimed in
for forming and ?lling lined cartons, such as are
commonly used for packaging crackers, cookies,
and other food products but the invention is not
our co-pending application, Ser. No. 330,140.
limited thereto. Such lined cartons are formed
Fig. 2‘ is a front elevation, partly in section on
by folding together and interlocking the liner and
the line 2-2 of Fig. 1.
carton blank, the carton blank having side and 10
Fig. 3 is a side elevation, partly in section on
end flaps and interlocking tongues and slits that
line 3-3 of Figs. 1 and 2.
are folded and interlocked while the carton blank
Fig. 4 is a vertical section taken substantially
and liner are being folded together.
on line 4--4 of Figs. 1 and 2.
An important object of our invention is to pro
vide a packaging machine, or a carton forming
5--5 of Fig. 2’.
and ?lling machine, wherein the articles being
packaged automatically control the feed and tim
Fig. 6 is a View, partly broken away and partly
in section, on line 6-6 of Fig. 2, showing the ar
ing of the machine.
ticle feeding and measuring mechanism.
Another object of the invention is to provide
means in a packaging machine that will measure
by volume and with exactness the weight or unit
quantity of the articles that will be contained
in the package‘.
Another object is to provide a feeding and con
trol means whereby an exact predetermined vol
ume (and hence weight) of the articles will be de
livered to the packaging machine each time, the
Fig. 5 is a top plan, partly in section on line.
Fig. '7 shows a leader or starting block that is
used at the head of a column or stack of articles
as they are being advanced to the machine. ‘
Fig. 8 is a section on line 8-—8 of Fig. 6.
Fig. 9 is a section on line 9—9 of Fig. 2.
Fig. 10 is a section on line I0--IIJ of Fig. 9.
Fig. 11 is an enlarged detail view taken sub-‘
stantially on line Il-II of Figs. 6 and 9.
Fig. 12 is a section taken substantially on line
means being arranged so that it cannot operate
I2-I2 of Fig. 2.
until that exact volume is ready to be delivered.
Fig. 13 is a side view, taken on line I3—l3 of
Another object is to provide means for adjust 30 Figs. 2 and 12, showing the cam and sliding link
ing the volume measuring means so that the ex
for operating the carton feed carriage.
act required volume will be measured and de
Figs._l4 to 18 show ?ve stages in the formation
livered each time.
of a carton from a blank and liner.
Another object of the invention is to provide
Our invention in its many aspects and details
means in a carton forming and ?lling machine
is adapted to use with different kinds or types of
whereby it may operate only as a carton forming
carton forming machines.
machine to form cartons, or cartons and liners
In Figs. 1 to 13, we have shown our invention
from appropriate blanks, that-may be removed
embodied in an automatic carton forming and
from the machine after being formed to be ?lled
?lling machine, this embodiment including mat
and closed elsewhere.
40 ter that is also shown in our co-pending appli
Still another object is to provide means, where
cation, Ser. No. 330,140, now Patent No. 2,315,670.
by the machine may be adapted to forming, look-4
The machine illustrated is adapted particularly
ing and ?lling cartons of many different sizes and
for packaging crackers or other forms of bis
cuit that are delivered to the machine stacked
Yetanother object is to provide means for de 46 on edge; the machine automatically measuring
livering a ?xed volume of the merchandise to be
off de?nite quantities of crackers or other articles
packaged to a hollow former having an open bot
from the stack and forming a carton about each
tom but in which the merchandise will be held
measured quantity.
by clamping means until the former has been
Referring to Fig. 12, an endless belt I23 de
brought into or substantially into contact with 50 livers the craqkers to a transfer plate I24 in
the carton blank or carton liner.
I front of a plunger I25 that is in alignment with
The above and other objects and advantages
a follower ‘I26. The follower I26 is connected to
over prior carton forming and ?lling machines
a rack I21 which engages a pinion I28 that is
are attained by our invention, one form of which
secured to, a grooved pulley I29 over which a
we have illustrated in the accompanying draw 65 cord passes that is attached at all? was $9 a
shaft I51 and at its other end is connected to the
weight adapted to rise and fall in the well I3Il.
A mercury switch I3! (which may be double
switch or two switches secured together) is
adapted‘ to be tilted and closed by a striker I 32
upper end of a yoke-like link I59, which ?ares
outwardly at its lower end to provide spaced bear~
ings I69, IEI (Figs. 2 and 5) for ashaft I62‘, each. .
on the rack I2? when the follower I26 is at the
end of which carries a pinion ISSJ'M engaging
extreme left end of its movement. : One "side of,‘
the switch I tjl'is’inithe circuit of a’solen'oid I33‘
Theend's er- shaft‘ I62 extend beyondfthepinions
the vertical racks I?E, I66 ?ned to“ the‘frame.
res‘, attend" are jhurheued' in sliding blocks m,
(Figs. 1 an’d‘2)‘ which'th'rough a system of levers
W3 that slide in vertical guide ways I69, I'Iii on
and cams (as shown in Fig. 2) operates to lift
the rails I23’ on the two sides‘of vthe conveyor 10' the frame adjacent the racks I65, I66 (Fig. 5).
A hollow rectangular former I1 I, within which
I23 when the solenoid IE3 is energized to bring
the measured volume, of crackers is held while
the crackers on the conveyorto rest.
The operation of pusher 125‘ to feéd'me‘asjuredt
quantities of the crackers from thejrerwareeha
the cagtodhlank' and liner are folded about it,
isconneoted to‘ agile-shaped cross-bar H2 (Figs. ‘ '
of the column on the conveyor I23 to the pack- ;
.24and 5') that slides vertically in guides I13, I'M
aging machine is controlled through a solenoid
I34 (Fig. 3) that in turn controls the operation 1
in the“ frame. Secured to each side of the cross
bar"I'I2'is~a‘ra-ck I75, I16 which engage the gears
of a one-revolution clutch.
I63’;- Iii'l' respectively, opposite the ?xed racks
The solenoid ISIijis‘ ‘
I65, I86. A pair of chains I11, I78 are connect
in a circuit that is controlled by the switch I3I
which is a double switch ,or two independent 20 ed to the top of the cross'lbar I72 and extend over
svvi'tcl'les",v one‘ in the circuit‘ of the solenoid F7337
and the other in the circuit of the shljén‘oidv vI34.
idler sprockets I19", ISIS at the top'lo'f'ythe‘ frame
Therefore,‘ each‘ til'rié ' tlr'latv the follower [26 is ‘
and over a second pair of idler's'I‘BfI“, I"8'2."th‘at'
are above the wells I83, I85. counter weights
pushedto the left (Fig; l), the'circuits" through
both‘ er the solenoids‘ I33, I34.‘ Will be closed‘
which will cause the‘ pmhg‘er' I25 to feed a de?
and‘ counterbalance‘ the former name‘ I "i2. andits
nite volatile and therefore aldfe?n'it'e’weight of i
the crackers from the head of thé" column into
the packaging. machine where'ithe' carton will
beform'éd arouhdthem."
Reference will now be liad‘to'Figs. 1' to 4 for a
general description of the cracker measuring.
and delivery mechanis'rn'ahd carton forming de
I85, I86; attachedtow thelowér'e'nds of the chains
ITI, I18 are adapted 'tori'se' and: fall’ihithe‘w'ell's"
, When the Cam'ISZ makes the revolution upon’
release'of the‘ Clutch. n'lenibefj'ml', the 's'iliding
link‘ I55‘ rises andfalls and rocks’ the shaft I51.
together with the arm :58; This causes the shaft‘
I62, through its connection'to" th'eli'rik‘ I59 to
ride up and down‘ iri'tl'ie'gi'lide ways will“); "The"
pinions vI63, I64 on shaft I62‘ run on the‘?xed
An electric motor 135,, preferably‘ having a 85 racks I65, I56, and'b'y' reason of vtheir'engeuge- '
m'ent' with the movable racks I75; I16 will’c'au'se
built in adjustable speed reduction drive, through
the latter, and hence the former" I'II, cross-bar
a chain I36 drives a‘ cam shaft I37 that is jour
I12 and their connected parts te'make vertical
nalled in' beariiigsin the lower partof the frame
strokes of twice the length of the s'trokeo'f' the
I38 and’ extends’ across‘ the frame. At, its op
link I59 and shaft‘ IE2.
posite end, the shaft I37, has a sprocket I39’
,Ref’e‘rfi'n‘g' again to Figs. Ito 5, the camshaft
(Figs. 2 ends) which‘ through a chain mo drives
IIII has a cam I81, a sprocket IBSPand‘ a caiii I‘8'9'
a cam shaft Ill-I‘, jou‘i'nalle'd: in the upper part
keyed thereto. The cam I81 has al race‘in‘ which
of the‘ frame I38 parallel to the lower cam shaft
the‘ roller [90' 011' sliding link [if rill'is'. Tlié link
I37 (Figs. 2 and 4). The shaft I3‘! has keyed to
I9I'is forked at its end' adjacent the cam‘ and
it a gear M2 meshing‘ witha gear its" that‘ is
slidably engages the'shart‘ I51’. The dppbsité eIl'd‘
keyed to'a third cam shaft I44‘ journalled in the
0f‘ link I9] is pivotally ‘cohhectéd to a swinging
lower part of frame I38‘ parallel to the shaft I 31.
The motor I35 does not drive thé'sh‘aft I31 ' arm‘ I92 intermediate‘ its ends‘, the‘ upper end
continuously, jbut intermittently through the' of thearm being piv‘ot‘all'y supported‘ on a b‘r'aéket
I93 secured to'the frame: of them'a'chin'éi . The
one-revolution‘ clutch that is controlled by the"
lower'end of arni I'92ijs connected by‘a'sho'rt" link
solenoid I34; previouslyjreferred‘ to.‘ (Figs; 1; 2
I94‘ to the plunger I25'that ‘feedsth'ejcrackéi‘s
and 3). The chain I36 drives a sprocket M5
to the hollow former or mandrel I‘fI‘I.‘ It will'be'
that is ?xed to one element Id’?‘of theuonelrev
olution clutch rotatable‘ onthe 'sh'a‘ft I 37'. The
other element Itl'Iv of this‘ clutch is keyed to the
shaft I37 and normally engages‘ the" stop “it
_'which holds it against rotation. The stop I48
is pivoted at I59 and a spring I50 urges it into
the path of the clutch ‘element m1. (Fig. 3).
The free endof the stop I48 is connected to the
core IEI of the solenoid I35. When the solenoid
I34 ‘is: energized, it" pulls down on the stop I748,‘
tilting it about the pivot I49 to'release the clutch
which then drivesthe' shaft I 31 one revolution.
and: the‘ packaging machine through one cycle
of movements.v
noted on reference to Fig. 4', that‘ the'racef in'the
' cam I8’I7is, concentric'with,the'sh'aft' l‘dijt‘hr'o'ug'h‘
about 240“ and that;thefajctive"portiongofgthe
race embraces only‘ 120° or less‘; sjo'that‘ theact‘ion'
' of the plunger I25 takes‘ place during onethi‘fd,
01‘ less than one third, of thétifh rota‘ complete
cycle of movement of the package’, feeding and
’ The sprocket I88 drives a chain I95 th'atwd'r’ives‘
a second" sprocket I96'keyed t‘o‘a‘ shaft I9l'j'6url
nalled on the frame of the machine (Fig's‘fZ to
4); This shaft I91 icarriesnacam I98l,'ie,ri‘s‘e of'
Adjacent the gear I52; the shaft I3’! has a cam‘ I
I52 keyed to it (Figs. 1, 2 and 3) having a; groovev
the tension‘ of aspiring 262 that‘ is‘ secured/to a
depending guide ?nger‘ 2B3 ' that is ' a‘ part1 of ."th'e
I53 in which the roller I54 rides. The roller I54
is secured to a sliding link I55 which is forked 70 lever 288. As is‘b'es't'sh‘own" in‘ Fig. 4‘,-the"ho'llow
former or mandrel ITIQi's ch ch 56th the bot
at itslower end to slidably engage over the shaft
tom- ahdon' the sidetow'ar'd the plunger‘ {25.
I3‘!~ an-dat its; upper end ispivotally connect
ed to an arm’ I56 keyed to a rock shaft I51 jour
The plunger l2'5'ha's a forwardly extending platev
n'alledin the upper part of they frame I38; An
204 which is in augment with thehelt? I23 when
other arm I58 is keyed at one end ‘to the rock
the plunger is withdrawn and receives thev
crackers from the head of the stack. This plate
284 supports the crackers as they are pushed by
the plunger I 25 into the former I1I, but when
the plunger and plate are withdrawn, the
crackers would drop out through the open bot
tom of the former except for the provision of
means to hold them until the former is lowered
into contact with the carton blank.v This hold
ing means is actuated from the cam Hi8 and lever
288, as best shown in Figs. 13, 15 and 16. A lever
205 is pivotally secured intermediate its ends to
the cross-bar I12 that supports the former "I.
At its upper end, this lever has a grooved roller
the lower end of which is connected to a short
arm 223, ?xed to a rock shaft 224, mounted in
hearings on the rear removable top plate 225,
whichforms part of a removable unit. The shaft
222 has three liner holding bars 226, 221, 228
secured to it that are adapted to be tilted down
and overlie but not rest on the liner to hold it
smooth during the initial part of the folding op
eration (Figs. 4, 5, 9 and 15). One form of car
ton blank 229 and liner 238 are indicated in Figs.
4, 9, 14 to 18.
Referring to Fig. 3, the cam I89 is concentric
through about 300° so that the holding bars 226,.
286 that rides along the edge of the ?nger 283,
221 and 228 are in their lowered position and the
and at its lower end has a fork 281 that fits over 15 fold straightening ?ngers 2| 9, 220 in raised or
a pin secured to a slide 298 that slides on a guide
inactive position during that interval. The oper
bar 289 secured in the former Ill above the
ation is such that as the bars 226, 221, 228 are
top edges of the‘ crackers that are to be packed.
raised the ?ngers 2I9, 220 are lowered.
As best shown in Fig. 4, the slide 288 carries a
‘The bars 226, 221, 228, overlie the liner 230
bracket 2I9 that is secured to a thin sheet metal 20 until it and the carton blank are folded to about
holding plate 2I I, which is relatively broad and
the extent shown in Fig. 15. Now it is time to
(as shown in Figs. 6 and 8) lies snugly against
turn up the back side of the carton and liner, so
one side of the former l'll when a measure of
the bars are raised and the ?ngers 2I9, 220
crackers is being pushed in and extends below
tilted down to engage within and'straighten out
their top edges. Figs. 6 and 8 show a measure
the folds 23I (Fig. 16) that are formed in the
of crackers 293 being pushed into the former I1I
liner when the rear side is folded up. These ?n
by the plunger H25. When the plunger I25 is at
gers are tilted back or raised very quickly by the
the inner end of its delivery stroke and the
cam I89 to permit the end ?aps of the carton to
measure of crackers 293 suf?cient to ?ll a carton
be folded in as shown in Fig. 17. At the same
is fully within the former I'll but supported 30 time the bars 226, 221, 228 are again lowered,
by the plate 284, the cam I99 will release the
_ ready to hold down the next carton and liner
roller I99 of the lever 298 and the guide ?nger
that are inserted.
283 will be pulled to the left (Fig. 2) by the spring
Turning now to Figs. 2, 3, 4 and 9, a removable
282. This will rock the roller 286 at the upper
front unit is secured to the frame I38 by a top
end of lever 285 to the left and move the forked
plate 232, cross plate 233, and brackets 234, 234',
end 281 to the right together with the holding
plate 2 I I. The holding plate presses against one
the latter having guideways 235, 235' for the slid
ing blocks 236, 231 which form bearings for the
opposite ends of a shaft 238. A pair of pinions
229, 228 keyed to this shaft mesh with racks 24I,
side of the measure of crackers and forces them
against the opposite side of the hollow former I1l
with a gentle, yet su?rlcient, force to hold them 40 242 fixed to the brackets 234, 234’ and with mov
in the former while the support 284 is withdrawn
able racks 243, 244 ?xed to the sliding feed car
and the former then lowered into contact with
ria'ge 2425. Guide bars 245, 241 (Fig. 2) secured
the carton blank and liner through operation of
to the brackets 234, 232' provide runways for the
the cam W3 and its connected linkage. When
racks 243, 244 and guides for the carton blanks
the crackers and former I ‘H are forced down
during the operation of folding the carton blank
and liner, the roller 28% rides down along the
?nger 283 and keeps the holding plate 2! I pressed
gently against the crackers. By the time the
carton is formed, the rise on the cam I98 presses
the lever 29!) to the right (Fig. 2) so that the ‘
holding plate 2“ releases the crackers and the
and liners as they are fed in. A link 248 is con
nected at one end to shaft 238 and at its other
end to an arm 249 keyed to a rock shaft 258
mounted in‘ bearings 25I, 252, in the lower frame.
A short arm 253, keyed to shaft 250 adjacent the
bearing 252, is connected to a sliding link 254 that
has a forked inner end slidably engaging shaft
M4 and a roller running in the groove of a cam
255 keyed to a shaft I44 (Figs. 9 and 13). The
arm 249 may be adjustably connected to shaft
55 259.
Referring now to Figs. 3 and 5,>the cam I89 on
The shaft I44 has a second cam 25t~ keyed to
the shaft I4I engages and is adapted to actuate
it adjacent the cam 255 and gear I43 (Fig. 2).
a roller 2I2 mounted on an arm 2I3 that is se- ‘
This cam 255 has a groove 251 (Fig. 3) in'which
cured to a rock shaft 2I£l mounted in bearings
a roller runs that is secured to a sliding link 258,
near the top of the frame I38. Adjacent its two 60 the upper end of which is pivoted to a short arm
ends, the shaft has a pair of arms 2I5, 2I5, keyed
259 ?xed to a rock shaft 268 mounted in bearings
to it, the free ends of the arms being pivotally
26L 262, 283 (Fig. 9) so as to lie adjacent the
connected to the upper ends of two connecting
inner ends'of the guides 246, 241,
rods 2I'l, 2I3 the lower ends of which are con
The top plate 232 is L-shape in cross section.
nected to two liner fold straightening ?ngers 2I9,
and the inner ends of the guide bars 248, 241 are
228, which are pivoted at one end to the frame
secured to it. (Figs. 4,9 and 10.) A carton fold
and extend inwardly from the two sides in posi
ing plate 285 usually made from relatively thin
tion to engage within the rear folds of the liner
metal, is ?xed to the shaft 268, and normally
to hold them out smooth and aid in forming the
rests in a shallow recess in plate 232. A pair of
crease so that they can be folded down without 70 side wings 258, 261, are pivotally connected to the
wrinkling or tearing when the last folds are made
two sides of plate 265 and normally lie in the
former I'll is then withdrawn from the carton
leaving it ?lled with the crackers ready for clos
inthe blank and liner'as shown in Fig. 15.
same plane. The plate 285 is adapted to turn up
Between the arms 2I5, 2I8, the rock shaft 2I4
the front panel of the carton, and the Wings 266,
carries a third arm 22I that is connected to the
261, to turn in two of the carton end ?aps, as
upper end of a connecting rod 222 (Figs. 4 and 5), 75 shown in Fig. 15.
position. .A pair .of guides ,293, 294 are secured
A pair of toggle levers 268, 26.9 are pivoted in-,
to thenpper surface of the 'topplatexzib and '
termediate their ends to the under face of the
serve to guide thecartonblank and liner as they
are inserted, Fig. 19.
As best shown in .Figs. 4, 9 and 12, vthe liner
plateZBS (Fig. 16) . The outer ends of these levers
are connected by short links 219, 2.1! to the lower
faces of the wings 28,6, 28.7. A bell crank lever
2'12, also is secured to the under side of theplate
2555,.its horizontalleg having a slot near its free
end engaging the adjacent ends of the levers 268,
2269 (Figs. 4. and 10). The vertical leg of the lever
232 is connected to one endof a spring 213, the
holding ?ngers are, 221, 22s, the guides 293, 294,
the arms 281, 282, the vertical guides 281, 288
other end of which is connected to an adjustable
fastener 214 secured to the removable cross-plate
2.53. When theshaft 26B is rocked to raise the
and the back closing plates 291, 292 are all see
cured toand carried by the rear top plate 25
and are removable'with it as a unit.
Referring to Figs. 1,0 and .12,.each of the guides
2'55, 2:16 carries a yieldably mountedv breaker
?nger .285, .236 each of which projects through
plate :265 to fold up the'front wall of the carton
an opening in theguide that is inalignment with ‘ "
(as shown in Fig. 15), the wing carries the lever
the slit formed in~the carton and opens the slit
in the carton as it passes by during the forma
2'52 up with it and tends to tilt the horizontal leg
212' toward the vertical, but this tilting move
tion of the carton.
ment is resisted by the pull of the spring 213.
Each of the front guides 264, 264.’ has abearing
rl‘he result is a rocking of the lever 272 relative to
29'l,_.2,9_8in which a shaft 299 is ?xed. Near-each
the plate 25-5 which pulls the inner ends of the 20 end, the shaft carries .a tongue guide ?nger 30B,
Sill which is located so that the fork or groove
toggle levers 258, 269 away from'the plate 265,
in each guide engages a locking tongue on the
thereby folding the wings 265, 251, inward, as
carton blank and guides it in toward. the slit. in
shown in Fig. 15.
the carton blank with which itinterlocks.
As best shown in Figs. 4 and 9,.there is an open
Below the guide ?ngers, each of the front
ing between the rear top plate 225 and shaft 260, 25
guides carries'a yieldably mounted roller 392, 303
through which the former I'H moves up and
which, as the carton blank descends, open the
down. The former ill, rises above this opening
slits in the opposite .end flaps for the reception
to the position shown in Fig. 4 to receive a meas
of the locking tongues. The carton former or .
ured volume of crackers, and passes down
through the opening during the operations of 30 mandrel has an opening 3% cut in each side (Fig.
folding. the carton blank and liner about it and , 4) which openings coincide with the slits in the '.
depositing the crackers in the carton as it is
A pair of front flap guides 2H, 2% (Figs. 9,
l0, 12) are secured to vertical front guides 264,
2&4’ and extend toward rear top plate 225. The
guides: 215, 235 are’ spaced apart a distance
slightly greater than the length of the former
‘ iii so that the plates will press against the end
flaps of the carton as the blank and liner are 40
carried down between these plates by the former,
The front guides 25%, 26s’ are secured to the top
plate 23.2 and-cross plate 233 and are removable"
A pair of folding wings 2W, 2E8 are hinged at
El'd and 269m a pair of brackets 28!, 282 that are
secured at
2313 to the rear plate 225, Fig. 9.
Each of these wings has a lip 235, 236 that pro
jects into the path of the former Hi as the latter
carton blank asit is being formed and these open- '
ings travel down in alignmentjwith the breaker:
?ngers 295, 298, and the .rollers 302, 383. The
the carton coincide'with the lower edges
of the openings 3% s0 thatonly that portion of
the carton above .the slit can be pressed inward
to open
- '
The front plate 282, the lower cross-plate 233
and brackets 234, 234’ are connected together
and are removableas a unit carrying. with them’
the guides 2,64, 26é’,:the guides 215,216, the guide
?ngers 25-1’, 2.38, the rollers 3B2, 30%,jthe front
plate 2%", and the flaps ‘266, 26:7; together with
their operating levers.
Instead of the movable ?aps 221, 228 shown in
9 and 11, we may use a roller Mon each
of the arms ‘221i, "282 as shown inFig. 14.
The method of folding the carton blank and
travels down past, the plate 225.
50 liner is shown in Figs. 14 to 18. A carton blank’
22% and liner Edi) are fed into the machine‘as
The function of these two wings 21?, 2'58 is to
shown-in Fig, 4 spanning ‘the gap between'thev
fold up the bottom flap of the carton and the
frontplate 2,32 and ‘the rear plate 225. The car.
' overlying part of the liner just as the rollers 56,
I ll‘! function in Fig. 16.
ton blank-is marked with score lines so as to pro.
The rear plate 225 has two downwardly extend 55 vide a panel 3!!! which will form the bottom :lof
the carton ‘and which lies directly over thebpen- '
‘ ing guides 23?’, 283 the forward edges of which
ing- in the top frame and beneath the former IT I .>
.Other score lines on the blank provide bottom end
?ap-s 381,312, a front panel or, side 35:3, a back
23-! in the carton liner and the end ‘?aps 32!, 322
of the carton lying undertheliner to the posi 60 side or‘ panel 314, a cover M5 and a tuck ‘3856.
At the two ends of the front panel 39:3 arefront
tion'shoivn in Fig. 17. The vertical parts of these
?aps 3H, 34% each of which is. providedwith a
.233 below the curved portions are
slit 3I-9, 3250. The'back wall of the carton SM is
spaced apart a suificient ‘distance to 'just clear
, curve inwardly as shown at 289,’ 2953 (Figs; 2 4
is)- so as to engage and fold inwardly the folds
the former Hi and carton blank and liner as
they ‘are forced down during the folding opera- '
tions. The space between these two vertical por- .
tions is substantially the same as the distance
between the guides 2'75, 2%.
provided with opposite end ?aps 32!, 322 .eachpf,
which has a locking tongue 323,324 ‘which, when
the carton is formed enter the respective slits
(its, 132:0. Cuts e25, ,325separate top closing naps
321, 523 from the cover 355 and these top flaps
Referring to Figs. 4 and 12, adjacent the lower
are connected along score lines to the end or
ends of the guides 23?, 288 there are adjustably 70 looking flaps 732i, 322. This carton blank is of
mounted back closing plates 29!, 292 which en
usual form.
, gage the back side of the carton blank as it is
pushed down by the former lr'i | and turn it for- ‘
ward so that the locking tongues on the'end ‘flaps
When the carton blank and liner have been
inserted in the machine as shown in Figs. 4 and
1.4, the former 'I'H holding a measured quantity
enter the slits in the carton and lock it‘ ingform?d 75 of crackers 2.93 descends. The ?rstoperation as
2,412,370 »
the bottom of the former starts to force the
carton blank down between the front and rear
‘top plates is for the cam 256 to rock the shaft
260 which raises the front plate ‘265, folding up
the front of the liner and the front wall 3I3
of the carton. At the same time, through the
pull of the spring ‘213, the end ?aps 265, 216‘!
so that they will not fall over when the plunger
I25 has pushed a measured quantity of crackers
293 into the hollow former I‘II. The holder ,
holds the front of the stack of crackers from tip
ping over until the follower I25 return‘sinto
engagement with the front CraCk6I‘S_‘0f.I3he stack.
When the plunger I25 is retracted it strikes the
are turned in folding in the sides of the liner
?nger 336 and withdraws the holder out of
and the front end ?aps 3I'I, 3| 3 as shown in
contact with the crackers as best shown in
Fig. 15. As the former continues to‘press the
carton blank and liner down‘the next operation
In Fig. 7, we show a metal leader orstarting
is for the wings 211, 218‘ (Fig. 9) or the rollers
block 338 that is used at the head of the stack
iii (whichever is used) to fold up the bottom
of crackers on the belt I23 when starting up
.end ?aps all, 3I2 together with the overlying
the machine. This starting block may be formed
fold of the liner as shown in Fig. 16. In this 15. from sheet metal or ‘cast and is provided with
position the fold straightening arms H9, 229
two feet 339, 340 which will span the belt I23
have straightened out the rear folds 23I in the
and rest on the rails I237. The block is hollow
liner and the carton is substantially in the posi
so that it will pass over, without touching, the
tion shown in Fig. 16. The ?ngers 2H3,‘ 22B
follower I26. The block, partly broken away, is
are now swung up and as the carton continues 20 shown in Figs. 5 and 6. ‘When the machine is
to descend, the back panel 3M of the carton and
started up, one of these blocks is placed at'the
top 2I5 are foldedup by the downwardly and
entrant end of the conveyor I23, and is sup
inwardly inclined front edge of the rear ‘plate
ported on the rails I23’. As the stack of crackers
225. The'inclined faces 289, 2% of the vertical
is advanced by the belt, theblock is pushed
guides 281, 288 engage the ?aps 32I, 322, 321 25 ahead on the rails by the advancing stack and
and 328 and gradually7 fold them inwardly.
keeps the ?rst crackers standing on edge until‘
During this time the slits EH19, 329 have passed
they reach and are held by the follower I 26.
beneath the breaker ?ngers 235, 296 which break
The hollow starting block then passes over, the
open the slits provided they have not been cut
follower and no longer functions. It may be
fully open when the carton blanks were formed.
removed from the machine or left standing in its
As the carton descends further the locking
inactive positions (as shown in Fig. 6) until the
tongues 323, 325. will engage in-the grooves in
machine is next started, when it will again be
the guide ?ngers 29?, 298 which are inclined
placed in position to lead the stack of crackers.
When the follower £26 is released and returned
inwardly toward the former and as the tongues
slide along them they are turned in toward the
toward the front of the stack of crackers, its
slits and also are positioned the correct distance
motion will be very rapid caused by the drop
from the slits so that when the rear side of the
of the Weight in the well I35. If this return
carton is folded into its ?nal position by the
movement is not checked, the follower may strike
plates 29!, 222, the tongues will be in exact
the crackers with su?icient force to break them.
alignment and ready to enter the slits 3H3, 320 » In order to check this return movement of the
when the latter are opened by pressure of the
follower, the bottom of the well I30 is closed
so as to provide adash-pot for the falling weight
rollers 392, $5533 on both the tongues and the
carton above the slits. These rollers not only
as shown in Fig. 2. However, as the weight
open the slits but also press the locking tongues
drops, the air must escape-from the well which
?rmly against the sides of the ?aps SI'I, 3H3 di
is provided with openings 339, that may be of any
rectly above the slits so that as the tongues are
size or shape adapted for the purpose, through
pressed forward by the back closing plates 29I,
292, the tongues must enter in the slits and lock
the carton in formed position. As the former
which the air canescape until the lower edge
I'II carries the carton down below the rollers '
362, 303 it reaches the end of its stroke and
the holding plate 2“ is moved to release the
crackers 293. The former is now withdrawn
and the fully formed box ?lled with crackers as
shown in Fig. 18 drops to the conveyor belt 329,
Fig. 2, which carries it up to the closing machine.
The belt I23 (Figs. 2, 5, 6, and 8) is driven
continuously but the stack of crackers (the front
edge of which is indicated at 330) is advanced
of the falling weight passes the lower edge of
these openings after which the air must escape
through the narrow space between the walls of
the well and the sides of the weight and will
cushion the last part of the downward movement
of the weight and cause ‘the follower to contact
the crackers gently. The contact pin or striker
I32 is adjustable with respect to the follower I26,
so that the timing of the machine may be ad
'justed to enable the plunger I25 always to push
exactly the necessary volume of crackers from the
head of the stack on the transfer plate I24 into
intermittently, the crackers coming to rest when 60 the former I‘II. These pins may be adjusted in
any manner as by the clamp shown h'olclingthe
the rails I23’ raise them above the belt.
Adjacent the plunger I25 is a bracket 33|
having guides 332, 333 in which the ‘stem 334
pin I32 in Fig. 8.
v I
The operation of the cracker feeding‘and meas
uring mechanism is best-illustrated in Figs; 1, 2,
of a cracker holder is slidably ‘mounted. At its
inner end the holder has a soft head 335, made 65 5, 6 and 8. When the machine is startedone of
the starting blocks 338 is placed on the rails I23’
from sponge rubber or other suitable material, '
at the righthand end of the belt I23. The crack
and at its outer end has a ?nger 336 which pro
jects into the path of the plunger I25. A light
ers are fed to the belt stacked on edge and as the
belt advances carrying the crackers it also carries
coil spring 337 bears at its inner end on a
shoulder on the stem. 33/; and at its outer end 70 the starting block forward until the blockwpasses '
bears against the guide 333. The spring nor
‘ over the follower I26 andthe advancing stack of
mally urges the soft head 335i inwardly so that
crackers contacts the follower. The follower. is
pressed back by the advancing crackers until it
when released it engages the stack of crackers
as shown in Fig. 6. The function of this, holder
reaches the position shown-in Figs. 6 and-8 at
which time the switch I 3| is tripped by the striker
is to hold the front of the stack of crackers
,ates to lift<the railsl 23'73100‘16512116 surfacepfif?he
.a-nd 1,1, the rear unit is secured to the, frame by .
tioned accurately on-the frame by =dowels'3'45,;3'46_.
.LWhich withdraws the stop 'I 153 from the uiclut‘ch
with another unit which is drilled to receiveelthe .
132 which closes the. circuitsthrough _~5tl_1_e rqsole
.noids I33 vand I34. The-solenoid l_&*3¢then»op_e,r
.,__f0ur»,bolts .341, .342, 1343, 3M , and may -be ,posi
‘belt 123, thereby lifting theycrackersaoutuof conr- " .All that is necessary to remove this unit and re
Ltact with-the belt so thatthey come to rest.
,5 place it withranother one is'to remove the four
lbolts and liftout the unit. It is then replaced
" At the same time the solenoid H471 isienergiized
.dowels 345, 3,46 “and/is secured; in the sameposi
tion by the bolts 34! to 2344. .The front unit is
the shaft 131 through one revolution-whichroar.
‘ ries the mechanism through one complete.—-cycle, .19 secured to the top ofthe frame by four bolts 341,
348,348, 350 (Fig. .9) and the.;cross-bars_233 is a
.at which-time the shaft l31'againcomesr1to rest
-» element Ml so that the motor !35 starts to drive
‘secured by four bolts 351,352, 353,.35‘3 (-Fig.‘2)'.'
,by engagement of the clutch .element'MT-with
When ‘it is desired to remove this unmhe arm
2.491s disconnected at its uppercnd and the link
the stop I48.
With the-stack of crackers now atrrestrandthe
‘shaft l3‘!
its inward
its rotation,
as the
ingFig. 6
.258 isydisconnected.fromthe arm.259. - The eight
bolts :are then removed and thefront unit can be
»and pushes a measured quantity of crackers 1293' 1
.from the‘ front of the stack into’ the) hollow
unit tolopcrateon
r .. carton
blanks of'a di?erent
former I'll.
lifted off. This operation isreversed toinstall a
When the plunger started. its ‘inward stroke,
Thecartonformer or mandrel ill will also
jit released the ?nger-3,36 of the cracker holder " have to be changed but the. diiferent size mandrel
which permitted thesoft head 335’to-engage ‘the
front of the'remaining stack of crackers andhold
‘ them in position as shown in Fig. 6. ,_.When the
measured quantity of crackers is pushed inward;
past the follower I26, the followeris" returned by
the weight dropping in the well I39, ‘the head. of
thefollowerpassing through meanness (Fig. 4)
.in theplunger 125 until it comesin contactwith ‘
.the head of the stack ofcrackersremaini-ng on >
the-transfer plate 124 asshown inFig.]5,_-or with
.the wall of the plunger that isiin-ccntact'with
the‘head of .the stack of crackers-when the slot
’ 340 does not/extend all the way through.
willbe connected to the cross-bar H2 in such
position that its lower edge will occupy the same
-relative position-as the'lower edge of thev former
shown, and thus no [change need be made in the
timing of any of the mechanism.
While‘ we have illustrateda machine in which
is, measured quantitypf-articles is'fed into a hol
low mandrel and’ the cartonformed about the
contents, the machine is adapted to form empty ' _
cartons and liners.
Also, instead of ?lling the
mandrel with ameasured quantity of relatively
large crackers or biscuit, it is contemplated that
the mandrel may be ?lled by discharging a'prey
~,clamp 2H ,isnowoperated to=grip the crackers
determined-weight or volume cflsrnaller articles '
in. the ,7 hollow former I1 I and "as the ; plunger 1.25
into‘themandrel after-itjhas been brought into >
.continues its return strokeitstrikes the ?nger
1373B .andwithdraws the head 335 out of contact
with the stack of crackers. The return of the .
contact with the carton blankuand while the;
‘follower I26 withdraws the'striker I32 from the ‘
trated how; it may be used in carton forming-and
‘?lling machines, we claim as ourrinvention all
‘switch l3lr so that the circuits through the sole
~=jnoid I33,el31l are opened. This» dropstherails
1I23'sothatthe-crackers again rest on the belt
.‘l23wand are carried forward.
Theformer .iTH - is
now movedrdownward through operation of the u‘
iqcam l81,.a carton blank and liner having been
' -fed into position beneath the former as previously
described, 'As soon as th-estack of crackers has '5
again advanced so as to .push thefollower I26
blank isbeing folded about it.
. I
Having ‘thus described our 'inventionand illus-.
{adaptations and equivalents thereof that may
comewithin its spirit or withinthe-scope Eof any. ‘7
g ofour claims.
\What we claim is:
,3, J j
vl. In a- machine of the class describedfthe
combination of an endless" conveyor, means‘ for
;driving the conveyor continuously, rails'adjace'nt
‘the edges ofthe top run of the conveyor’ and
‘,toIthe left and again close the circuits through 50 normally below the same; means‘. for supplying
‘ {the solenoids, the'meohanism operatesthrough
another cycle.
The arms carrying :the . tongue presser ;~rollers
302,303 preferably carry-tongueguides >302", 3!];3’v
which may bemade from thin spring steel or
other suitable material.
These guides 'Withsome ‘
sizes of cartons and certain kinds ofcartonmate
rial are desirable to insure that the locking
:tongues ;enter correctly and timely under. .the i
‘ presser rollers. As clearly shown in Fig. “2 ‘the
lift said articlessabovesaid conveyor, a plunger
havingareceiving plate in thepath of the con
.veyor adjacent vits delivery endadapted .to' re
-;ceive_articles' from the conveyor, a hollow former '
adjacent the said receiving plate; means for mov;
,ing said plunger and receiving plate to and from
‘ :arms carrying the rollers’3ll2, 303 are urgedvrin- ,
the former, and means actuated byiorward
wardly by coil springs or other suitable means.
:movement of the articles on'the conveyoriwhen
~While we have shown rollersfor opening the: car
stacked articles to the'receiving end ofsaid upper
run and delivering themat the other end, said
z-articles extending beyond the conveyor and ‘over
jthre-railsfmeans for raising said rails thereby to
.ton slits, rounded surfaces or camson the-arms ‘
‘ operate _,satisfactori,ly but there ‘is less friction ~ ‘
Theiold straiehtenina?nsers;2l9. 2'20 shown I
/- in Fig...2;seneral1y aresnotnecessary when the
cartons care .
as :say; less .zthan ;..O_1'.lB pound '
“capacity; but when. lareercarbonszareused, they r
‘ assist materially in keeping the .Llincr ?elds
: straight; and. contribute .tdhisher ' speed ofvonco
la de?nite quantity of articles have been received -
on said. receiving, plate ts‘ actuatesaid rail raising
means whereby said articles come to rest and said
plunger moving means is operated to. deliver the
articles on said plate to the hollow former.
2. In a machine of the class described, the '
combination of acontinuously driven endless con
veyor carrying a continuous row of articles onits f ~
,upper ‘run, aplunger having a receiving»; plate
adapted to receive articles from the delivery-end
of said upper run, a hollow former adjacent. said
The machine, is readily convertible to usegwith .delivery end, meansactuated by the. articles de“different size: cartons. 1 vbest shownv in r;gs...9 7.5 11ivered from the’ conveyor _-to,the. receiving plate
when the plate has received a measured quantity
of the articles to move the plunger and plate lat
erally of the conveyor and toward the hollow
articles from the conveyor, means for moving
said plunger and receiving plate across the path
of theconveyor, and means actuated by forward
former, the receiving plate providing a support
movement of the articles on the conveyor when
for the measured quantity of articles in the hol- 5 a de?nite quantity of articles have been received
low former, means for clamping the measured
on said receiving plate to actuate said rail raising
quantity in the hollow former, means for with
means whereby said articles come to rest and said
drawing the plunger and plate fromrthe former
plunger moving means is operated to move said
when the articles have been clamped therein, and - plate and the articles thereon out of the path of
means for preventing forward movement of the 10 the articles on the conveyor.
articles on the conveyor when the plunger and
4. In a machine of the class described, the
plate are moving to and from the hollow former.
combination of a continuously driven endless con
3. In a machine of the class described, the
veyor carrying a continuous row of articles
combination of an endless conveyor, means for
stacked on edge, a hollow former adjacent the
driving the conveyor continuously, rails adjacent l: conveyor, means whereby the continuously driven
the edges of the top run of the conveyor and nor
conveyor advances the articles intermittently,
mally below the same, means for supplying
and means for measuring off and delivering a
stacked articles to the receiving end of said up
de?nite quantity of the articles from the leading
per run and delivering them at the other end,
end of the continuous row on the conveyor into
said articles extending beyond the conveyor and 20 the hollow former during the interval when the}
over the rails, means for raising said rails thereby
articles are at rest.
to lift said articles above said conveyor, a plunger
having a receiving plate in the path of the con
veyor adjacent its delivery end adapted to receive
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