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Патент USA US2134567

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ct. 25;
Filed June 29, 1936
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Filed June 29, 1956
9 Sheets-sheet 2
6601' @lo
_ Oct. 25,- 1938.
F‘iled June 29, 1936
9 Sheets-Sheet,3
W@A .
Oct. 25, 1938.
c. LONG ET Al.
- ’
Filed June 29, 1936
` `
- 9 Sheets-Sheet 4 Y
Oct; 25, 1938.
Filed June 29, 193e
9 Sheets-Sheet 5
w/ lfâ,a
Geof e Long
Fal/@â B. Lamé/z,
Oct. 25, 1938.
Filed June 29, 1936 `
' 2,134,567
9 Sneaks-.sheet e
Oct. 25, 1938. .
>Filed June 29, 1936
Ela/e Blf/„amen
oct. 25, 193s.
Fileid June 29, >1936
Sheets-Sheet 8
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RWM. l y
156 A
0d. 25, 1938.
6601' @L0
L lllllllfllllgá
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-. 2,134,567- `
,.« Piasare-¿ly ocr. 2,5, 193s
PATENT- ¿orÍ-_Ftca *
, lum'"rsp '
George mag, Joliet, and
mwen ß. Larsen, om»
by mesne' assignments, :to
' ,
cago', Ill., assignors,>
Franklin Steel Works,
Joliet, Ill., a corpora- '
tion of Maine
Applicativi:"June- 29, 1936; Serial No.
zo claims'. (o1. `sas-_sii ‘
j ' The invention relates to new and _useful im- L.
4provements in bag filling vand »closing machines
'and has particulan reference tomechanism for
closed by bringing the upper -portion of. the front
and >rear- walls together;
Figure 2'is an'elevational view of the bag flll- ~
ing and closing machine ofFigure 1, showing the
filling a bag, collapsing the top of the filled bag,
exit sideof the machine where the bags are fold
'i and folding the collapsed top, the several opera
ed,»sealed and discharged from the conveyor;
tions being performed at a plurality of stations. ` y.Figure 3 is a diagrammatic plan view showing
Í An object ofthe invention is to provide in a the supporting platform for the bags and indi
i bag ñlling and closing machine improved con- .. cating .the various stations at whichthe various
_ veyor mechanism for' intermittently moving an operations take place;
, -
l“ open bag from station to'stat'ion throughout a
Figure 4 is a front elevational view showing the
plurality of stations comprising the machine; to I >elevating structure for adjusting the heights of
provide novel collapsing mechanism for tucking
the bags;
in the side walls and ,for bringing the front `and Figure 5 is a -fragmentary vertical sectional
' "rear walls together to collapse the upper portion view showing in »detail the »collapsing mechanism
' l5 of the bag; and to provide mechanism of im
and the means-for operating rthefsame;
proved construction- »for folding the collapsed
Figure 6 is a vertical sectional view 'taken sub- “
upper portion of the bag to close and substantial
>ly seal -the same, preventing leakage of the‘con
_ , tentsof the bag.
stantially along line 6-6 of Figure 5 and show
ing in detail the fingers for tucking in the side 20
walls of the bag;
Another object of the invention is to provide a
' Figure 'I is _a fragmen ary vertical sectional
view showing in detail the` mechanism for fold
bag filling and closing machine which will auto
matically locate an open bag in an intermittent ving the collapsed upper portion of the bag;
ly‘moving‘ holderilxed to an endless conveyor,
IFigure 8 is a fragmentary vertical sectional N .
which will locate the `bag under a filling hopper, view similar to Figure .'7 but showing the folding 5
bring the bag into association'with/collapsing mechanism in one position of operation;
mechanism, ' and subsequently folding, creasing
_ Figure 9 isa fragmentary vertical sectional
i and pressing mechanisms, whereby the bag >is de
view similar to Figure ’1, ‘showing the folding
Y hvered from the -machine with the upper portion 4
mechanism‘in another position of operation; _,
Figure- 10 is a fragmentary vertical sectional
folded in a plurality of secure folds and which are
30 in 11st Contact with the top of the'fbag.
view showing in detail the creasing mechanism;
A yfurther object is to provide bag closing in
ing the creasing mechanism in the act of creasing -
strumentalities which ' will fsuccessively fold,A
v crease the fold, fold again and crease, and lastly ` the folded upper portion
pressthe folded portionvñaty into contact with
, .~
Figure 11 is a view similar to Figure 10 show-_
-of thebag;
Figure 12 is a perspective view showing an
open bag'. of the type adapted to= be closed by
Another object is to provide elevating structure ‘ the present machine; ,
’Figure- 13 shows perspective views of the bag ‘
for vertically positioning the bags when located
under the folding> and creasing Lmechanisms in of Figure 12 after the same‘has been iìlled, and '
order" to’ locate _ the upper collapsed portion with the upper p_ortion thereof collapsed and
thereof in proper relation’v with respect to said _'folded, respectively;
With these and various other~ objects in view,
the' invention gmay consist -of certain `novel‘sfea
tures of construction andN operationas will be
Figure _14 shows views similar to Figure/,13
showing the upper collapsedportion of- the bag
folded in a diüerent manner;
Figure v15 is a side elevational view showing in
more fully described and particularlylpointed out detail mechanism .for pressing the/folded por
the bag fiat against the top of the bag; ‘
'in the. specification, drawings and""'clai`_ms ap 7tion'of
Figure l6_ is a view taken substantially along
pended hereto.
In .the drawings which illustrate an embodi
line lBK-ißvof Figure l5;
Figure 171s' aïfragmentary,- vertical sectional
ment of- the invention and wherein like reference ’ view of the pressing plate and l’means for operat
I -characters are» used to designate like parts
" ‘
, ' Figure 1 elevational.
view of the bag'ñll
Ying and closing .machine forming the subject
-ï-mattœ lof the present invention: showing ^the
front-side where _the *bags are opened, ñllegl‘ and
ing the same;
Figure v18 .is atop plan view showing the. pre
Aferre'd form of. gluing mechanism;
_ > ¿1i-'P
' _. «Figure 19 is a, side elevational view of the same;
Figure 20 is an elevational view of the same
looking in the direction of travel of the bag
through the mechanism;
Figure 21 is a front elevational View showing
a'» bag chute 36 lwhich is supported by member
31 suitably secured to upright l5 and said fingers
open the bag, simultaneously locating the same
within one of the holders i2', positioned in align
ment with the bag chute 36 during the opening
anism illustrating the location of the same with , operation of said fingers. The'plunger 38 de
mechanism for lifting the bag; and
Figure 22 is a side elevational view of the mech
scends within the opened bag and holds the same
against the support il to permit removal of the
respect to the spaced rails.
The present invention contemplates a bag ñll'
ing and closing machine which will include means- bag opening fingers. Inasmuch as the bagopen
for opening `paper bags, similar to that shown in ing mechanism forms no part of the present in
Figure 12, means for ñlling said bags, mech` ventiononly sufilcient portions thereof have been
I invention .
anism for collapsing the upper portion thereof herein illustrated to enable the present
to be understood, and, accordingly, further de
byv tucking inwardly the side walls and Asimulta
scription is believed unnecessary.
neously bringing the front and rear walls to
The conveyor Il remains stationary while the
gether, folding means for folding the collapsed
upper portion a plurality of times, and means collapsed bag is being removed from the chute
for creasing each fold immediately after the 36, opened and located within'a holder I2, butrespective folding operation. When the machine upon withdrawal of the fingers `35 and plunger
is using bags providedv with vertical stays or 33 said bag is moved to the next station and
metal strips in thev upper portion thereof, the subsequently to the next station, whereupon the
folding and creasing operations substantially ’ same is located under i filling hopper 4I which
close the bag, with the exception of the last op
eration, which presses the folded portion into
flat contact with'the top .of the bag. In the
fills the open bag with the proper weight of ma
`terial, sucl'i as bean or
ilour, etc.
ground coffee, sugar,>
Referring to Figure 3, it will be observed that
packaging of certainv materials it is necessary to
the bag opening station'is indicated by A and _
completely seal the folded portion of the bag by -the
bag filling station by B. I Continued step by
«gluing said portion to the body thereof, and novel .
mechanism is likewise provided bythe invention step moveânent of the conveyorpropels the bag '
through a plurality of stations indicated by C,
for emclently performing this function. _
Referring more particularly to Figures 1 and 2 during which movement the bags are brought
' of the drawingawhich disclose-the preferred em
bodiment of the present invention. numeral I0
into. contact with vibrating means for shaking
and compacting the material in the bag. Said
indicates thle- horizontal support fo'r the bags, mechanism consists of a- longitudinal' membî:
which is of substantially elliptical`shape, the bags ~4I,‘Figures 1. and 3, located inthe support
and extending for the greater portion ofv the 85
- being intermittently propelledby an endless con
length of one side of said support. ~ At several'
veyor il to which is fixed the holders I2.
support is suitably fastened. to uprights I3, I4
and l5, which rest on the> foundation _for the ma-`
chine. The driving means for driving the end
less conveyor Il, and actuating the various mech
a anisms. consists of an electric motor I6, Figure 2,
having- ñxed -to its rotor shaft a.v pinion vover
which passes the.endless chain I'l for rotating
the shaft I8, suitably Journalled by the Vgear
.housing 20, Shaft I8 may be rotated by hand,
independently of the motor-„through operation
of the hand wheel 2|. Within the. housing 20
are located the transmission gears for operatively
connecting. the driving shaft I8 with the' oper
ating shaft 22, said operating shaft being con
nected >to the transmission by the clutch. indi
places throughout its length the support is
formed Withn` depending lug Í42 which pivotallq
connects with a collar 43 actuated by the eccen
tric 44 'fixed to shaft 45. Said shaft is rotated
bythe vertical shaft 48 through meshing gears
41. on the shafts, respectively. A driving shaft
4a journalled in bearings 49: extends longitudi
. nally of the machine in the vicinity oi’- the base
thereof and operatively connects through- bevel .
gears 50 with shaft 46. The -driving shaft is. in
turn rotated through the. chain 5i
which opera-
tively connects the shaft with I8V driven by the
motor I6. Immediately upon starting upthe
motor lßthe eccentrics. 4,4,A are rotated to vibrate 59
the shaker 4J which has the effect of settling
the material inthe ñlled bags while they are
being propelled. fram the filling> station B to the
’ next station D„ Figure 3, where the upper por
a plurality of cams 26, 21, 28 and.~ 29. As will be
tion'of the bags are collapsed in. a. manner which y
more particularly described, camalß> and 2fac
will now be. described.A
tuate tha c
for folding in
wardly the side walls of «the bag and for bring
ing the. front and rearwalls. together. and cams
23 and 23 actuate the folding mechanisms' and
The upper framework of. the. present machine
consists of a plurality of channel-shaped mem
bers 52 arranged in pairs, facing each other, as
better shown in Figure 5. Certain pairs form. the`
outside framework of the machine and rest 0n the
upper ends of the uprights I3, I4 and i5. Other
» _pairs oi' channel-shaped members run centrally ' '
of the machine, being suitably SupDOI‘ted by the'
At the opposite end of the support
there is provided a stub shaft 32 for supporting
_a sprocket overwhich the conyeyor chain like
wise passes.
l. The numeral- 34 designates the supporting
transverse beams I3. The-cams 26v and 21,'as
shown in Figure 5, actuate the belly cranks I4 and
El, respectively, one end of each bell crank carry-l
ing a roller 58 riding within a cam race l1' '
formed' in the cam. The bell cranks are l'pivotally'
supported by shaft Il and atl their other andere 'n
Joined to links l0 and Cl, respectively. Link il
is pivotally connected to lever 32 fixed' to the
gers 35 also having Pivotal" movement onv vertical shaft 33 suitably Journal-led in lbracket W; i Also
axes. Bald lingers' remove a coltlapsecl'bagv from ' fixed. to-said shaft is a lever-0l >having the'turn
frame for the bag opening mechanism, which es
sentially consists of. vertically reciprocating iin
buckle Il pivotally secured toitsA outer- vend and 76
which is pivotally connected, as shown in Figure
lever is cammed downwardly,l
FigurerZl, by a .
roller 228 carried 'by arm 224 fixed to one end of
6, with a lever 51 fixed to shaft 68. Said shaft 68
shaft 225. Said shaft is journalled by bearings
is suitably journall‘ed- in bearing 89 which also
journals a companion shaft 10‘, the shafts being
operatively connectedby. means of meshing gears
which is oscillated by an actuating lever 228 fixed
to shaft 95. Lever 228 is formed at its lower end
2|'5 and has fixed to its other end an arm 2214
1|. To each shaft is‘fixed a finger 12 so that the
with a Uj-shaped recess which receives the roller
same extends substantially horizontally when the 229 carriedv by the free end of the arm 221. When
bell crank 54 is positioned as shown in Figure 5.' arm 224'is in vertical position,~Figure 21, the lever
This is the inoperative position of the fingers 2|6 assumes its low position, in which position
since when the bell crank is caused to move out
pin 230, projecting from the arm, will engage ex
, wardlyby reason of the high portion of cam- 21
tension 220 of members 2|8, _producing rotation
the connecting linkage will-be actuated to move
thereof so as to space thel members wit-h respect
the turnbuckle 86 downwardly, thereby impart
to flange 2 I1. ` When the parts are in this position
ing rotation to shaft 88 in a direction to cause
4 movement of the fingers 12 downwardly. This
movement of the fingers takes place when a filled
bag 59 is brought >to rest at stage E’ with its col
bag is temporarilylocated at station D and thus
the side walls- of the bag 59, Figure 12, are folded
lapsed upper portion located between the lifting
instrumentalities, i. e. the flange and the mem
bers. Oscillation of a'rm 224 rearwardly permits
upward movement of lever 2|8 which is biased 20
in this direction by spring 232. -The collapsed
Simultaneously with the above operation of the l portion of the bag will be ñrmly held between the
fingers 12 the member 1.3 is oscillated since said flange and lifting members and as a result of the
member operatively connects through link 14 with upward movement of the same the upper filled
Actuation of member «13 will result in portion of the bag will'v be brought into contact
, shaft 63.
the rearvwall of the bag being forced inwardly with the rails 92. This will have the. effect of 25
compacting the coffee in the bag and producing a
toward the vertical center line of the filled bag.
collapsed upper portion of maximum length.
Actuation of bell crank 54' takes place substan
The bags are eventually propelled to station F,
tially simultaneously with bell crank 55 and ac'
cordingly link 60, connecting with lever 15-„oscil >having folding mechanism for folding the col
lates shaft 16, journalled in bearing 11. Also lapsed upper portion of the bag to produce a 180 30
degree fold in the collapsed portion. This mech
30 fixed to said shaft is another lever 18 connecting
by means of link 80 with a block 8| fixed to the
rod 82. Said rod is mounted in spaced ears 83
i integral with the carrier 84, mounted for lhori
anism will now be described.
The folding mechanism shown in Figures 7, 8
and 9 is actuated by cam 28, having a cam race
zontal reciprocating movement within member
for receiving roller 93,_carried by one end of a
crank 94. The levers of said bell crankare
a coil spring 86. is` confined between said block fixed to shaft 95 journalled by bearings 96 sup
and one of said ears. The lug 81, projecting vported by member 91 extending between certain
from the carrier, has pivotally secured thereto a pairs of channel-shaped members 52 forming the
member 88 similar to 13 and which is caused to framework of the machine, as» previously de 40
pivot in a counter-clockwise direction by move
40 ment of the rod 82, the member 88 being heldin
scribed. Link 98, Figure '1, is joined to the de
pending lever of the bell crank and through link
99 operatively connects with shaft |00 journalled
contact with the rod by spring 89.
bell crank 55 is actuated by cam 28, shaft 16 is in bearing I0 I. Also fixed to said shaft is` an arm
oscillated, resultingv in movement of the carrier |02 and lever |03, the latter pivotally connecting 45
84 within the guides provided by member 85. The .with member |04. Below shaft |00 bearing |0|
45 member 88 is accordingly causedl to contact the
journals a companion shaft |05, said shafts beingv
front wall ofthe upper portion of the bag. The operatively connected by linkage designated in> its
carrier will `presently strike the stopV 9| and fur
entirety» by A|08.~ Oscillation of shaft |00 will v
ther movement of block 8| will be imparted to therefore be duplicated by shaft |05, which has 50
the rod. 82, causing pivotal movement of> the fixed thereto arm |01 connected by means of link
50 member 88 to bring the front wall of the bag into |08 with the folding member ||0, fixed to carrier
contact with the rear wall, whereupon the upper |||, biased in van upward direction by spring ||2
portion of lthe bag“ is fully collapsed, Figure 13, _
and pivotally supported from bearing ||3 by`
vThe collapsed
means of link ||4.
lapsing mechanism and delivered to spaced rails
Actuation of bell crank 95 in a counter-clock
92, Figure 3, of arcuate form and which extendV wise direction, which occurs’by reason of the low
around the elliptical end -of the support. The portion formed of the cam race in cam 28 will
spaced rails serve to retain the upper portionv of oscillate shaft |00 and shaft |05, and result in
thè bag in collapsed relation and for thepurpose pivotal movement of the folding member | I0 from 60
the space vbetween the rails progressively del an inoperative position, as shown in Figure '7,
creases in extent..` The bags leaving station D are to an operative position, shown in Figure 8, .where i
momentarily brought to rest at station E and the `the folding member and` carrier are positioned
next intermittent movement of lche conveyqr substantially vertically.- The bag 59, positioned
at the folding station F, has its collapsed upper 65
locates the bags at station E'.
While located at station E’ the bags are `-lifted portion 19 located in contact with and along one
65 upwardly by mechanism, Figure 21, actuated from side of guide member ||5. Said member is lo
shaft 95' and supported from plates >`2|5. Mecha
cated to that side of the collapsed upper portion
‘ nism for accomplishing this function includes a
of the bag opposite the folding member ||0 when
lifting'lever 2|8'pivotally supported from beam the same is in inoperative position, as shown-in 70
52 and having fixed at its outer end the depending Figure '1. Said folding member has a short and
70 flange portion 2|1. Said lever also carries at its a long extension and when the same is caused to
outerv end lifting arms 2 I 8 `journalled in the »lever ~ pivot as above described, the short extension just
by pin 2|9 and having an upward extension 220. clears the guide member ||5 which results in
A plate 22| connects the arms at their lower ends bending the projecting section toward the left, 75
When the '
and is provided with a rubber insert 222. _ The
p 4
if Figure 8, producing a 90 degree fold in the
Continued actuation of the bell
mechanism is provided similar in all respects to
|00 to bring the arm
, which forms a
shaft 58, Figure 1.
In summing up the above operations, -it will be
understood that the bag '
a. second 180 degree fold is formed at station H,
which fold is likewise creased at station J, the 15
folding mechanisms at stations F and H being'
similar in construction and operation and likewise
the creasing mechanisms at stations G and J.
The folding and creasing mechanisms are in
pensate for the .reduced height of the bag.
This includes elevatingstructure which is fur
ther desirable in that the height of the bag can
be adjusted to suit the folding and creasingl 25
As shown in Figure 4, lift plates |10
and |1I- extend longitudinally of the platform at
„the rear side .of the
machine. Lift plate |10 is
j provided at its entering end with a separable part
by the resilient spring |22 and the folded upper
is held by said presser plaîte
guide member H5.
plates |10 and
intervals and each lug is pivota-lly 35
joined to bell cranks. The bell cranks associated
. |1| at spaced
with plate- |10l are identified by numeral |11 and
comprises creasing mechanism for creas- 4 those associated with plate |1| are identiñed by
ing hich
the fold.
numeral |18. These latter arey characterized by
a longer uppper leg than those first
resulting in a
|21 with the toggle links connected
|28 pivotally
joined at |25 to arms |39. Said- arms are pivot
will be seen that actuation of any bell crank by
handle |8| will be transmitted to all. By reason
of the greater throw of bell cranks |18
ally connected by the pin |3| and extend below
said pin to form creasing members" |32. The bag - will at all times be elevatedl above plate
59 having a 180°
in the collapsed upper
propelled along the platform and are eventually
positioned on lift plate |10, which has been ver- l
¿tically adjusted to properly position the upper
end of the bag with respect to the‘ñrst folding and
plate will be automatically raised above nu to
compensate for the reduced height ofl the bag 60
at this stage in the folding operations.. Plate | 1| ‘
Referring again to Figure 8; station H consists-
of another folding mechanism substantially iden
70 along a line substantially mid-way of the ñrst
fold. The folding mechanism at station H'is ac
tuated by cam 28 from the counter-shaft 95, Flg~ i
the mechanisms at
stations F and H in unison and at the same speed.
J, Figure 3, creasing
be described.
When the bag leaves
section has been rfolded
the folded portion extends vertically upward
cated directly under the presser plate |66 and
is therefore located atstation K, Figure 3, and
isactuated from shaft 22 having _the cams for
effecting operation of the folding and creasing
mechanisms as above described. This pressing'
mechanism is peculiar to avmachine operating
»on bags provided with vertical metal stays ory
strips in the upper portion thereof, since when
downward movement of the cross head |64 pres- '
ently occurs to bring the presser plate |66“'against
the folded portion, pressing the same firmly
aaginst the top of the bag. Subsequently the
presser plate is lifted and movement of the con
veyor will propel the bag from station K to the
next succeeding Vstations and presently to sta
tion L, Where the bag is discharged from the 10»
these strips are omitted from the bag it is neces
sary to seal the same by gluing the folded por
When the present machine is‘ operated on bags
which are not provided with vertical stays for
retaining the folded portion of the bag in folded
glue the folded portion
tion.V Structure for applying-glue to the fold of
the bag is shown in -Figures 18, 19 and 20. '
Referring to Figures l5, 16 and- l'1, shaft 22 is
provided with three cams |35, |36 and |31, hav
ing rollers _engaging their periphery for actuat
ing the levers |38, |39 and |58, which are suit
ably journalled by shaft |40. To lever |38 is
pivotally connected link |4|, which is connected
by link |42, with shaft |43, journalled in member
- relation'it is necessary to
to the body of -the bag.
Gluing mechanism is
therefore substituted for the structure just de
scribed for bending' over the folded portion and
pressing the same into flat contactwith the
top of the bag. The gluing mechanism is located
|44, there being fixed to said shaft a finger |45. y at station- K.
Referring to'Figures 18, 19 and 20, wherein a
Lever |39 is connected `by link |46 with lever
|41, which is fixed to a shaft |48. Actuation of preferred form of gluing mechanism is disclosed,
numeral |82 indicates an open con-tainer- provid
said shaft imparts movement to lever |50 pro
jecting above and below the shaft and pivotally . ing a reservoir for the glue and which is secure
. connecting at its lower end with member |5|, ly held to a base plate |83 by threaded members
which is yieldingly supported at its rear by links |84. The overhead supporting structure indi.
cated in itsentirety by numeral |05 provides a
|52, joined to the member by a pin and slot con
nection, the parts being held as shown in Figure bearing |86 journalling shaft |81, to which is
16 by coil spring |53.> The coil‘ spring |54 is fixed at one end `bevel-gear |88 and at its lower 30
anchored at one end and connects at its other end the roller |90, located within the reservoir
end with the upper end of lever |50 to thereby and disposed at an angle to the` horizontal. The
overhead supporting structure |85 also provides
bias said lever in a direction to retain the roller
of lever |39 in contact with its -respective cam
|36. Member .|5| carries at its outer end a`roller
|55 which is oscillated Iin a substantially hori
zontal plane by the cam |36 through the con
a bearing |9| for jourlnalling shaft |92 having
bevel gear |93 at one end thereof meshing with
gear |88 and a 'simlar bevel gear |94 at its oppo
site end. Also ñxed to the end adjacent gear |94
is a pinion |95 meshing with similar pinion |96
As the bag 59, having an upstanding folded fixed to the driving shaft |91. Said driving shaft
portion |56, is about to leave station H the roller is suitably journalled in bearings |98 and is op
eratively connected witha source of power by the
|55 and the linger |45 will be in separated posi
with a similar
tion. With movement ofthe bag the roller is Í chain 200. Bevel gear |94 meshes
disposed shaft 202
necting linkage described.
' thenv caused to oscillate from
upward pivotal movement
right to left and
is imparted to the .
finger |45 so that the combined effect of the
roller and finger is to engage and bend the fold
ed portion |56 diagonally from the vertical as
gear 20| fixed to a vertically The lower end of
shaft 202 is provided with a'wheel 204 having a '
has contact with» 45
45 said bag is moving yto station K. It will be un
described thatl
` derstood from the structure above
the roller |55, during movement towardI the
bag, will roll the folded portion downinto con
tact with finger |45 and variations in the thick
of the folded por
.ness and other characteristics
care of by the fact that the
tion |56 are taken
rear of the membe
to link |52.
|5| -is yieldingly` connected
‘i ‘
Cam. |31 actuates the bell crank |58 having
pivotal movement on shaft |40.4 The lower end
of the bell crank is pivotally joined to theturn
to actuate a lever |6| pivot
The rotations of shaft 202 are-im
parted to a companionvertical shaft 205 jour
nalled by bearing 206 through the meshing gears
201. Fixed to the` lower end of shaft 205 is an
other w eel 208 having a'bevelled periphery.
The o erhead supporting structure |85 includes
the horizontally extending bearing support 209,
which provides the bearings 203 and 206. To this
arm is suitably fixed a depending lug 2|0 spaced
from the periphery of the bevelled wheel 208 a dis 55
tance to permit the folded _portion |56 of the bag
through,l as-will be evident from Fig
ure 20.
lfrom the driving shaft |91 is
transmitted to shaft |92 through gears |96 and 60
>ally supported at |62. 'Link |63 connects the |95. From shaft |92 power is transmitted to shaft
lever with a cross head '|64 mounted for vertical |81 to cause rotation of the reservoir roller |90
reciprocating' movement on the vertical rods which therefore picks up the glue from the res
ervoir and transfers the same to the bevelled pe
|65. Said cross
plate |66 which
lower. surface riphery of wheel 204 which likewise is driven from
with a longitudinal groove to receive the folded shaft |92. Since wheels 204 and 208 are opera
tively connected by the meshing gears 201, the
of the bag. __
65 portion
The bag travels from left to right, Figure 15,l latter wheel ‘will have positive rotation and the
and before the` same is momentarily. brought to glue from the wheel 204 will be transferred there-folded portion is bent over to. Movement -of the bags by the conveyor || will -
>buckle |60 adapted
f 'rest at station K‘t'ne
bythe linger and roller as described. Further
movement of the bag 'will bring the depending
4folded portion into> contact with »a
bring a bag between whee1208 and the depending
lug 2|0 and since the space between these parts
just accommodates the folded portion of the bag,
fixed to the cross> head |64. 'said portion will be positively engaged by the
As a result the bent-over-'folded portion is forced bevel wheel 208. Therefore the glue on the bev 75
into ñat contact. with the top of the bag.
When elled periphery of said wheel will be applied to the
K it is lo
_ shoe |61, suitably
75 vthe bag is brought to rest at station
6 l
peiling the bags,
collapsing said bags,
spaced members at means
one end of the elliptical con
portion thereof.
2. In a bag closing machine, the combination
of an endless conveyor for intermittently pro
creaslng means.
engagement with the top of the bag.`
9. In a bag filling and closing machine, thecombination 0f an endless conveyor for inter~
_ mittently propelling the b
3. Ina bag' closing machine, the combination
10. In a bag ñlling and closing machine, the 35
combination of anv
4. In a bag closing machine, the combination
-of an Aendless conveyor for intermittently pro
then another 90°
member in a downward direction.
5._ In a bag closing machine, a substantially folding
11. In a bag
horlzontal support for- the bags, -an endless con
combination of
bag closing machine, a substantially
' bags, an endless con
means collapsing
one end of the elliptical con
'veyor of elliptical forml for intermittently pro
the bags.
the second fold being located ata different sta
tion -for collapsing .the _upper portionoflthe bags ` tion but being identical in construction to the
after filling thereof, means at another'station for I means for tforming the first mentioned fold.
folding said collapsed portion including a‘fold
17. In a bag filling and closing machine,.the
ing member having pivoting movement and bodily combination- of an 'intermittently moving con-. 5
5 movement in a substantially vertical plane, said veyor for propelling the bags, means for folding
member _forming a 180° fold in said collapsedpor- ` the upper portion of the bags after ñlling there'
tion, and a presser plate at said folding station for of,v means-including pivoted fingers and a bodily
pressing said fold after the folding vmember has movable roller for momentarily engaging the.
been retracted.
folded portion to bend _the same into an angular
position~ from the vertical, and other means vfor
combination of an endless -conveyor for inter
pressing the bent folded portion into flat contact
mittently propelling the bags, means for collaps-l with the top of the bag. '_ . v
ing the upper portion of the bags after ñlling ’ v18. In a bag filling and closing machine, the
thereof.- means for folding said collapsed portion v -combination of an intermittently moving con-15 including a folding member having pivoting veyor »for propelling the bags, means for folding
movement and bodily movement in a -sulostantial- r the upper portion of the bags after _ñlling there-_4
ly vertical plane, a guide member associated with of, means including pivoted fingers and a bodily
said folding member, said folding member bend
movable roller `for momentarily engaging the
ing the collapsed upper portion of the bag over . folded'portion to b_end the same linto an angular
20 the guide upon pivotal movement thereof to pro
duce a 90° fold,> and further'bending the same
upon bodily downward movement to form a 180°
fold, and _a presser plate pressing said fold'against
position from the vertical, and a vertically recip
rocating pressing member ¿for pressing the bent
folded 4portion intoflat contact with the _top of
the guide after the folding member has been re
15. In a bag filling and closing machine, the
combination of an endless conveyor for intermit
- tently propelling the bags, ‘means for- collapsing
theupper _portion of the bags after filling there
30 of, means for folding said collapsed portion in
cluding a folding member having pivotal move
ment and bodily movement in a substantially _ver
tical plane,.a guide member' associated with said
folding member, said folding member bending- the
35 collapsed upper portion of the bag over the guide
to form a 180°.- fold,V and a presser plate press
ing said fold against the guide after the folding
member has been retracted,`said presser plate be
ing actuated by the same >means actuating the
folding member.
. '
16. In a bag filling and closing machine, the
the bag._
19. In. a >bag filling and 'closing machine, the
combination of> an intermittently moving con
veyor for propelling the bags, means for folding ,
the- upper'portion of the bags after filling thereof, l
means including pivoted ñngers and a bodily 30
movable _roller for momentarily engaging the
folded portion to bend the same into an angular
position from the vertical, and a vertically re
ciprocating pressing member for yieldingly press
ing the bent folded portion into flat contact with
the top of the bag.
20. In a bag closing machine, thecombination «
of an endless conveyor for intermittently pro- l
pelling the bags, means for forming a 180 degree-
fold in the upper portion of the bag, means for
~ » creasing said fold,
means for forming a second
180 degree fold in the `upper portion of the bag,
said operations occurring in successionwhile said
i combination of an endless conveyor for intermit
bags remain at rest, and elevating means for po- _
tently propelling the bags, whereby said bags , sitioning thev bags with respect to said .second
move from station to station- throughout the . mentioned folding means to compensate for the
machine, means at one station for collapsing-the
45 upper portion of the bag, means at a subsequent decreased height of said bag as a result of the
first fold in the upper portion thereof.
‘ f
the collapsed portion,means -1
' _ station Ífor folding
located at the next station for creasing the -ifold,
and means for forming a second fold in the'col
50 lapsed portion of the bag. the means for forming
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