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Патент USA US2116782

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“'75
m» 1933:
J. J. DELOYE
2,116,782 '
INTERFOLDING MACHINE
Original Filed Feb. 2, 1953
i1 Sheets-Sheet 1
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J. J. DELOYE
'
INTERFOLDING MACHINE
Original Filed Feb. 2, 1933
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2,116,732
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INTEBFOLDING MACHINE
'Griginal Filed Feb. 2, 1933
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2,1 16,782
INTERFOLDING MACHINE
Original‘Filed Feb. 2, ‘1933 ‘
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May 10, 1938.
J. J. DELOYE
2,116,782
INTERFOLDING MACHINE
Original Filed Feb. 2, 1933
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May 10, 1938.
J. J. DELOYE
2,116,782
INIERFOLDING MACHINE
Original Filed Feb. 2, 1933,
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INTERFOLDING MACHINE
Original Filed Feb. 2, 1933
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Original Filed Feb. ‘2, 1933
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_J_ J, DELQYE
2,116,782
INTERF'OLDING MACHINE
Original Filed Feb.’ 2, 1953 '
11 Sheets-Sheet 10
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May 10, 1938.
_
J_ J_ DELOYE
2,116,782
INTERFOLDING MACHINE
Qriginal Filed Feb.‘ 2, 1933
ll Sheets-Sheet 11
Jamegjjézhye
Patented vMay 10, 1,938
2,116,782 -
‘UNITED STATES2,116,732PATENT. OFFlCE
m'rnarommc MACHINE
James J. Deloye, Neenah, Wis., assignor to In
ternational Cellucotton Products Company,
Chicago, 111., a corporation of Delaware
Application February 2, 1933, Serial No. 654,857
Renewed November 1, 1935
.‘ 14 Claims. (Cl. 270—39)
manner in which the interfolded material is in
This invention relates to an improved inter
serted into the bite or, the gripping jaws.
'
‘ folding machine and has particular reference to
In the disclosed interfolding machine structure,
a machine for interfolding paper sheets, particu- larly soft and thin crepe paper such as cleansing. two wide webs of the desired quality of paper;
for example, soft, ?imsy crepe paper are supplied
.
The machine herein disclosed is of the type . to the machine from any suitable source.‘ Also, 5
shown in the patent to J . A. Nichol No. 1,516,779, it will be understood that the webs may be single
November 25, 1924, and improvements have been or multi-ply, depending upon the kind of prod
tissue.
g:
' embodied in the said type of machine to better
10
adapt the Nichol type of‘ machine to the inter
' folding ‘of tissue paper.
.
'
\
As above indicated, the main object of this in
vention is to provide avmachine which is especially
adapted, although not restricted, to the inter
folding of thin, soft and flimsy tissue paper such
as cleansing tissue which’, because of its light
ness and ?imsiness is quite difficult to handle.
This main object is accomplished by various
features of improvement described and illustrated
20 in the following speci?cation and accompanying
drawings (11 sheets) and various other objects
of the invention will become apparent from the
speci?cation and drawings.
In the drawings:—-_-
‘
,
.
.
.
.
Fig. 2 is an end elevation.
-
Fig. 3 is a section onthe line 3—3 of Fig. 2.
Fig. 4 is a fragmentary sectional view of a por
tion of the mechanism .shown in Fig. 3 but on an
.
>
be omitted where the width of the webs supplied
is not materially more than equal to two of the
desired widths. 0n the opposite side of the ma
chine, a similar web of paper designated I3 is fed
over another‘ anvil roll 26 with which another 20
slitter 21 cooperates to divide the web into two
narrower widths.
From the respective anvil rolls 26-26, the
around the respective rolls 29 and over rolls
3ll—30.
‘
'
'
,The respective webs A and B travel over the
respective rolls Bil-30 and downwardly between 30
tained by the guides 3l--3l. "
i
-
Fig. 11 is a side elevation on an enlarged scale
of certain mechanism shown in Fig. 3 for con
trolling the removal of the interfolded sheets.
Fig.‘ 12 is a section on the line 12-12 of Fig. 11.
13 is a section on the line l3—‘|3 of Fig. 11.
Fig. 14 is‘a section on the line "-14 of Fig. 13.
‘ Fig. 15 is a detail illustration of an eccentric
adjusting device also shown in Fig. 3.
Fig. 16 is an enlarged detail illustration‘ of a
gripping jaw‘ also shown in Figs. 3 and 4. s’ '
Fig. 17 is a section on the line l'l-l'lof Fig. 16.
Fig. 18 is a section on the line l8'--l3 of Fig. 5.
Fig. 19 is a plan section on the line lQ-JS' of
“Fig. 18, and Fig. 20 is a detail illustrating ‘the
‘
-
them, suitable guides 3l7-3l being provided for
Figs. 3, 9, and 10 are sections on the lines M,
40 s-9, and. it-it respectively of Fig. 7.
.
cooperating feed rolls 28 and 29 respectively and 25
‘ Fig. 5 is a section on the line 5-5 of Fig. 3, cer
sheets.
" L.
_
tain portions being broken away to more clearly
illustrate the details of ‘construction.
Fig. 6 is a plan section on the line 6-6 of Fig. 3.
Fig. 7 is a side elevation of certain mechanism
for marking the interfolded stack of sheets to
indicate bunches of a predetermined number of '
4-3
.
One web designated A in Fig. 3 of the draw
ings is fed over a top ‘guide roller 25 from which 10
the web is directedover an anvil roll 26 with which
a slitter 21 cooperates to divide the wide web lon
gitudinally into two narrow webs. If desired,
slitters similar to 21 may be provided for trim
ming the edges of the web, but such slitters may 15
webs ‘A and B travel downwardly between pairs of
Fig. 1 is a side. elevation.
30 enlarged scale.
ucts to be interfolded.
controlling the path of travel of the webs after
they leave the said rolls 30—-30. It will be ob
served ,that the webs A and B are brought to
gether between the rolls 30-30 and are so maln- 35
Each of ‘the rolls 30 is provided with a pair
of ‘grooves 32—32, these grooves being diametri
cally oppositely disposed. The grooves of one roll
30 'are so arranged that they will come opposite 40
the portions of the other roll 30 substantially
mid-way between the grooves of such other roll.
The surfaces of the rolls 30—30 are longitudinally
unbroken and substantially‘smooth. Rotatable
cutters'33—33, each provided with a pair of di- 45
éametrically oppositely disposed knives 34-34 are
arranged to’ cooperate with the respective rolls 30,
the arrangement being such that the knives 34
register with the grooves 32 of the'respective rolls.
Since, cutter rolls act with the rolls 30-40, the 50
latter, for convenience may hereinafter be re
ferred to as cutter rolls. It will ,be- understood
thatby the'described arrangement, the webs A
and B will be alternately cut crosswise so that
one of the transversely extending cuts in the web 55
2
2,116,782
A will be disposed substantially mid-way be
tween transversely extending cuts in the web B.
ends in suitable bearings formed in or carried
A pair of cooperating feed rolls 35 and 36 are
slitter arms 60 are provided with upwardly and
outwardly extending arm members 63 for main
taining the slitter disks 2‘! in operative relation
to their respective rolls 26.
provided for pulling the adjacent sheets through
the guides 3|-—3|. Gripping jaws 3'! and a tuck
ing device 38 cooperate to fold the sheets and
irisggt' them into stacking mechanism indicated
a
.
The above general explanation of the improved
10 machine and its operation will serve to facilitate
understanding of the following explanation of
by the topmost castings of the side frames. The
,
The source of power
For eifecting rotation of the cutter rolls 33,
the rolls 30, and other parts of the machine, the 10
following arrangement is preferred although it
may obviously be radically modi?ed. An electric
various details of construction.
There are two side frames 40 and 4| which - motor ‘I9 is disposed within the base area of the
are suitably united; for example, by means of a machine and it is coupled to a speed reducing
15 plurality of tie rods such. as indicated at 42.
unit which delivers its power through a shaft 80. 15
The shaft 80 is provided with a sprocket 8| from
Each side frame includes a plurality of rela
tively independent castings which are suitably, which power is transmitted to a double sprocket,
united to form rigid side frames. At the upper member 82 on a short, ?xed shaft 83 suitably
end of each side frame, ways indicated at 43 and mounted on the frame 40. The double sprocket
20 44 are formed for slidably receiving bearing
82 includes a large sprocket wheel 84 and a small 20
members such as 45 which rotatably support the sprocket wheel 85, a chain 86 passing around the
cutter rolls 33 and bearing members such as 46 sprockets 8| and 84. On the shaft 81 of one of
the anvil rolls 30, there is mounted a sprocket
which rotatably support the cutter rolls 30.
As shown in Figs. 3, 5, and 18, the bearing wheel 88 which has connected to it a clutch
25 blocks 46 rest on an upwardly projecting boss - ‘mechanism 89, another portion 90 of which clutch 25
in the bottom of each way, and the cutter roll is suitably connected to the shaft 81 so that ro
supporting bearingsv 45 are adjustably supported tation of the sprocket 88 may be imparted to
relative to the lower bearings 46. For adjustably the shaft 89 through the clutch 89-90. A chain
supporting the upper bearings 45, a sort of screw 9| transmits power from the sprocket 85 to the
30 jack arrangement is provided which is best shown
sprocket 88. The clutch 89--90 may be of any
in Fig. 18. This supporting means includes a conventional type, and in this instance it is shown
base element 41‘ whichrests on the top of the as-being controlled, i. e. engaged or disengaged,
bearing block 46 and is provided with a tongue by means of a-rock lever 92 pivoted intermediate
35
and groove connection therewith as indicated at
its ends. as indicated at 93 on a bracket 94 which
48 for preventing relative rotation of the base
is secured to the frame 40. One end of the rock
lever 92 is suitably connected as indicated at 95
to clutch operating means, and the other end of
the rock lever has connected to it an operating
rod 96 which extends ‘transversely of the ma
chine and is provided with a‘ handle 91 on the 40
front side of the machine for facilitating manual
member 41 and the lower bearing member 46.
The base member 41 is bored out as indicated at
49 to receive the screw threaded stem 50 of a post
‘which has a head 5! forming a seat" on which
the upper bearing member 45 rests. A nut 52
1 threadedly ?ts the post 50 and is rotatably seated
on the upper end of the base 41. The lower edge
portion of the nut 52 is provided with gear teeth
as indicated at 53 which are adapted to be en
45 gaged by the teeth of an adjusting tool 54.
adjustment of the clutch.
The shafts of each of the cutting rolls 33—33
and cutter rolls 30—.3b at each end thereof and
outwardly of the respective side frames, are pro— 45
For positioning the adjusting tool 54 with re; ‘vided with intermeshing gears for effecting ro
~spect to the gear teeth 53 of the nut, the base tation at properly correlated speeds. The two
member 41 is provided with apertures such as
55 for receiving a stem portion 56 of the tool.
50 It will be understood that by turning the tool 54,
the nut 52 will be rotated so. as to cause the
headed post 50 to be adjusted upwardly, or down
wardly as desired. Rotation of the post 5| may
be prevented by locking the head 5| of the post
55 to the upper bearing member 45, for example, by
providing the head of the post 5| with a slot and
the bearing 45 with an off-center pin (not shown)
to enter such slot. A'holding screw 5’! threadedly
engages an opening in the top end portion of the.
60 frame and the lower end of the screw engages a
thrust member 58 which rests on the upper bear
ing 45. The screw 51 is turned down so as to
tightly hold the upper bearing 45 in ?xed, spaced
relation (determined by the screw jack device)
65 to the lower bearing 46. By this arrangement,
the cutter rolls 33 and 30 are maintained in ac
curately adjusted predetermined relation.
By removing the topmost casting elements
which are normally held in place by bolts 59, the
70 cutter rolls 33 and 30 may be easily removed from
the machine.
The slitters 21 comprise disks having sharp
edges, these disks being rotatably mounted in the
forked ends of arms 60 which are secured to rods
6|, the latter being rotatably supported at their
cutter rolls 30-30 are driven by means of gears
98 and 99 which intermesh as clearly indicated
in Fig. 1.
Similar gears are also provided on the 50
opposite side of the'machine. The cutter rolls 33
which respectively cooperate with the cutter rolls
30 are each provided with gears |00—|00 which
respectively mesh with the gears 98 and 99 but not
with each other. This arrangement is clearly 55
shown in Fig. 1.
The shaft of the slitter anvil roll 26 at the right
hand end of the machine is provided with a gear
I 0| which meshes with the gear I00 of the ad
jacent cutter roll 33, and on the opposite side of 60
the machine,'the shaft of said slitter anvil roll
is provided with a sprocket I02. The shaft of the
other slitter anvil roll on the same side of the
machine is provided with a sprocket similar to
the sprocket I02 and a chain I03 passing around 65
said sprockets serves to effect rotation in the same
direction as both of the slitter anvil rolls 26.
The pairs of feed rolls 28 and 29-at each end
of the machine are driven by gear connections to
the respectively adjacent cutter rolls 30-30. As
shown in Fig. 1, the shafts of the rolls 29 are pro
vided with gears | 04 which respectively mesh with
the gears 98 and 99 of the cutter rolls 30—30, and
the shafts of the outer rolls 28 are provided with '5
‘l
2,118,782
gears I05 which mesh with the gears I04 of the
rolls 29.
The feed roll pairs 28-29
The pairs of feed rolls 20 and 29 are rotatably
mounted in end brackets such as indicated at
I06, the details of these brackets being best shown
rolls 30-30 without entering the same. How
ever, as a precautionary measure, the rearward
edge of each groove may be slightly chamfered
as indicated‘in the drawings, to avoid any possi
bility of the joints of the strippers engaging the
rearward walls of the grooves.
,
in Fig. 15. It‘ will be seen that each bracket I06
includes a, body portion I01 in which the inner
roll 29 is journaled and a laterally extending
‘10 bracket portion I08 through which a bolt
passes for fastening the bracket to the side frame.
The side frame is suitably recessed to receive the
body portion I01 of the bracket.
_
, The outer roll 28 is so mounted that it‘ may be
'15 adjusted towards or from the roll 29.' This is
accomplished by irotatably mounting a sleeveor
bearing bushing I09 in the bracket I06, the
‘in suitable supporting brackets such as shown at 10
I25, and the roller 35 is preferably mounted in
said bracket through the agency of a bushing
which is eccentrically bored out to receive the
roll shaft. By this provision, the roller 35 is
adjustable towards or from the-roller 36 in sub 15'
stantially the same manner as the rollers 28 are
adjustable relative to the rollers 29 as above
explained.
bracket being slit as indicated at IIO so that by’
tighteninga bolt and nut III, the bushing I09
20 may be locked in adjusted position. The shaft
ends of the outer feed rolls 28 are journaled in
bearing apertures H2 in the members I09 and
the apertures II2 are slightly eccentric of the’
bushing as clearly indicated in Fig. 15. It will
be evident that by rotating the bushing I09, the
.
As best shown in Figs. 2, 4, and 5, the rollers
35 and 36 are provided with grooves I26 for re
wardly as desired. For facilitating adjustment of
the bushing, a ?anged portion I I3'thereof is pro
vided with radial recesses Ill which may be en
machine and meshing with the respective gears
gagedby a suitable tool. The slight adjustment
of the outer rolls 28 contemplated by the de
scribed eccentric mounting will not impair the
driving engagement of the gears I04 and I05.
The surfaces of the‘rolls 28 and 29 are prefer
‘ably knurled so as to provide a more eifective
grip on the tissue web which is fed by the said
rolls.
The guides 31-31
The
guides
3I-3I
are such that they loosely
40
con?ne the adjacent webs within a desired path
of travel, and there is a plurality of guides 3|
disposed at longitudinally spaced intervals as will
be understood by reference to Figs. 2, 4, and 5.
The guides 3! on opposite sides of the paper web
45
20'
ceiving the guide members II1-I I1. The rollers
are adjusted'relative to each other so that they
will grip the webbing sheets between them and
propel them downwardly as an incident to the
rotation of the rolls. The surfaces of the rolls 25
are knurled as indicated in Figs. 2 and 5 to im
prove the feeding action of the rolls on the paper
sheets. The rolls are rotated through the agency
of idler gears I21, one being on each side of the
axis of the roll 28 may be moved outwardly or in
98. The shaft ends of the feed roller 36 are pro~
vided with gears such as I28 which mesh with
the respective idler gears I21, and the shaft ends .
of the feed roller 35 are provided with gears such
as I29 which mesh with’the gears I28. Thus, the
feed rollers 35 and 36 are driven in opposite di
rections, and it will be understood that the pe
ripheral speed of rotation is the same for each
roll, this being controlled by the use of the gears
I26 and I29 'of proper pitch diameter.
The gripping jaws and tucker (37 and 38l
are of like construction, and hence the following
The gripping jaws 31 and 38' of which there
are two oppositely disposed sets or pairs, are op
erated from shafts I30 and I3I, there being‘ one 40
of each of such shafts at each end ‘of the ma
explanation applies to each guide element.
chine.
All of the guides 31 are mounted on shafts such
as II5 which are fixedly mounted in the side
frames. 1, Each guide 3I consists of an upper por
tion 116 and a lower portion In.
, ing a head portion II8 bored out to fit the shaft
I15 and split as indicated at II9 so that it may
be clamped in fixed position on the shaft II5 by
means of clamping screws such as I20.
.
The‘shaft I30 is in the form of a crank shaft
as will be presently explained in greater ‘detail,
the ends of the shaft being suitably journaled in 50
The lower - the side frames 40 and 4| as clearly indicated in
portion is an elongated ?nger-like member hav
55
The feed rolls 35—36
The feed rolls 35 and 36 are rotatably mounted
‘
The upper guide member'I-I I6'inc1udes an up
Fig. 2.
The ends of the shafts I30 project be
yond the respective side frames and are ‘pro
vided with gears I32. The gears I32 of the shaft
I30 at the right hand end of the machine as
viewed in Fig. l mesh with the‘ idler gears- I21
through which rotation is trapsmitted to both
‘ wardly extending ?nger or stripper I2I which is
ends of the shaft I30 from the gears 90 on the . '
arcuately beveled as indicated at. I 22 at its free
end to ?t the surface of the cutter roll with which
it cooperates so as to thereby effectively strip the
ends of the adjacent cutter roll 30. The gears
I32 on the ends of the shaft I30 at the left hand 60
end of the machine as viewed in Fig. 1 .mesh
with idler gears I33, and such idler gears mesh
with the gears 99 on the respective ends of the
shaft of the other cutter roll 30. Hence, rotation
is imparted to the shaft I30 at the left hand end 65
paper web-from the roll in the event that the
paper should tend tooling to the roll.
At - its
lower end, the stripper finger I2I is provided with
65 a head portion I23 which straddles the head IIB
of the lower guide member and it fits on the rod
_ H5 so that the ?nger may‘- be swung, around the
said rod. For normally maintaining the free end
I22 of the stripper guide member in engagement
. of the machine.
I
The shafts I3I are suitably journaled in the
side frames 40 and 4| and one end of each of the
shafts projects beyond the frame I10 and is pro
vided with a gear such as I34. Idler gears such as 70
I24 extends outwardly from the head I23 and V I35 mesh with the gears I32 and I34 and serve
70 with the surface of the roll 30, the weighted arm
tends to‘ swing the upper member in the required
direction. Because of the length of the beveled
roll-engaging surfaces I22 of the strippers I2I,
to transmit rotation to the respective shafts I3 I.
Each of the jaws 31 includes upper and lower
jaw members I36 and I31 respectively, these jaw.
the stripper ends will bridge theggrooves in the . members being of substantially the same length 75
4
2,116,782
as the cutter rolls 33, cutter rolls 30 and other
the crank shaft, the jaws will be caused to open
parts as clearly shown in Fig. 5. For a purpose
which will presently appear, the jaws are notched
out at spaced intervals as indicated at I38. The
two jaw members are suitably pivotally connected
and close in properly synchronized relation to
other operations with which the jaws cooperate.
As best shown in Figs. 4 and 21, the tuckers
on a shaft I39 on which they are positioned by
means of end collars I40 which are ?xedly se
cured to the shaft by means of set screws or
10
otherwise as indicated in Fig. 16.
By reference to Figs. 6 and 16, it will be seen
that the upper jaw is provided with bearing
bosses MI and that the lower jaw is provided
38 serve to tuck portions of the paper sheets into
the bite of the jaws 31 when open. The tuckers
I38 comprise arms I64 which are secured to
shafts I65, the latter being suitably journaled in
the side frames of the machine (see Fig. 6).
The free ends of the tucker arms I64 are con 10
nected by means of an angle iron member I66
which supports a tucker blade I61. As indicated
with similar longitudinally spaced bearing bosses in the drawings (see Fig. 4), the blade I61‘ is a
I42, all of these bosses being suitably bored out ‘ thin, ?at strip which is adapted to enter between
to receive the pivot shaft I39. At one or both the open jaws 31 without occupying a material
'
ends of the jaws, arhollow I43 is formed between amount of space.
semi-circular portions ‘formed integral with the
The tucker arms I64 are 'caused to swing
respective jaws and a coil spring I44 is disposed through a limited are about the axis of the shaft
in said hollow space around the portion of the on which they ‘are mounted, this being accom
20 pivot shaft I39 extending through ‘such space.
plished by means of a suitable cam I68 which 20
One end of the spring is anchored as indicated at
acts on the free end I69 of an arm I10, the other
I45 in the ?xed collar I40 and the other end I46
end of which is secured to the shaft I65 as clearly ‘
of the spring engages a bridge portion I41 of the shown in Figs. 3 and 6.
upper jaw and serves to normally urge said jaw
By reference to Fig.3, it will be apparent that
into closed position'relative to the lower jaw.
The lower jaw is held in ?xed position on the
the path of travel of the forward edge of the re
spective tucker blades I61 will be slightly arcuate
shaft I39 by suitable means such as set screws as
and that in its downward movement, the forward
indicated at I48 which extend through the lower
jaw bearing bosses I42 and engage the pivot
edge of the blade will move towards the paper
shaft.
_
_
The jaw structures 31 maybe termed fioatmg
jaws since they open and close with respect to
each other and also travel through predeter
mined paths which in this instance are elliptical
as indicated by dotted lines I49 in Fig. 4.
For imparting the elliptical travel movement
to the respective jaw sets 3‘I and for opening the
we
.
The cams I68 which control the tucker arms 30
are so proportioned that from the highest point of
travel reached by the tucker blade I61, as shown
in Fig. 4, the blade will move downwardly to a
point substantially as indicated at I‘II where it
intersects the downward path of travel of the op
posite jaw set. This path of travel is substan
tially as indicated by the dotted lines I12.
jaws against the force of the closing springs I44, v
Further referring to Fig. 4, the operation of the
the following arrangement is provided.
tuckers and jaws may be described as follows:—
The bearing portions I42 oi the lower jaw are
provided with angularly upwardly . extending
bosses I50 to which adjustable tie rods such as
I5I are secured.~ At their upper ends, the tie rods
I5I are secured to bearing members such as I52
45 which ?t rotatably on cranks I53 of the shafts
40
I30 (see Figs. 2 and 4).
’
9
Between the bearing portions MI and I42 of
the upper and lower jaws, spaces are provided for
receiving the bearing end portions I54 of con
necting rods I55, the other ends of which are
w provided with hearing heads I56 which rotatably
6. ?t on cranks I51 formed on the shaft I3I.
It will now be understood that by proper tim
ing or synchronizing of the cranks I53 and I41,
65 the respective jaw sets 31 may be propelled
through the elliptical paths of travel I49.
For e?ecting'opening of the jaws 31, the upper
jaw is provided with bosses such as I58 vwhich
extend upwardly from the bearing portions I4I.
60
thereof and connecting rdds I59 are secured at
their lower ends to such bosses. The upper ends
of the connecting rods I59 are provided with
anti-friction rollers such as I60 which are adapt
ed to engage cams like I6I carried by the crank
vI35 I53 of the shaft I30.
It will be seen that so. long as the anti-friction
roller I60 engages the high peripheral portionv
I62 of the cam I6I, the jaws 31 will be held open
and thatas soon as the rollers I60 leave the high
70 cam surface and engage the low surface por
The jaw set 31 at the right hand side of Fig. 4 is 40
shown slightly below the highest point of its ellip
tical path of travel. In the illustrated position,the
jaw set mentioned may be said to have just start
ed its downward path of travel in the direction in
dicated by the arrow I13’. The oppositely dis 45
posed tucker member 38 has traveled through
the initial portion of its path of travel and has
just started to tuck the paper webs between the
open jaws'of the right hand jaw set. The coop
erating tucker and jaw set move downwardly in 50
unison through their respective paths of travel
until the path of travel of the jaw set leaves the
path of travel of the tucker, whereupon the spring
I44 is permitted to close the jaws to thereby ef
fectively grip and continue to pull the folded 55
sheets downwardly. It will be understood that
there is a slight relative movementbetween the
cooperating tucker blade and jaw set during the
described tucking operation, since during the ini
tial portion of the downward movement of the 60
jaws, the tucker is forcing the paper sheets into
the jaws whileduring a subsequent portion of
the downward movement, the jaws are moving
away from the tucker blade until the jaw actually '
leaves the blade. It is found that in the de 65
scribed operation, the tucker blade I 61 will re
cede from the jaws without withdrawing with it
the paper webs.
The mechanism thus far described is so syn
chronized that the tucking members will engage 70
tion I63, the jaws will be closed by the action the adjacent web of paper substantially along the
of the springs I 64. Obviously, .the anti-friction line at which it has previously been slitted. Thus
roller I60 will roll around the cam I6I as an inci
dent to the revolution of the cam about the axis
75 of the shaft I30. Bzy properly setting the cam on
the sheets of paper are folded intermediate their
lengths and the ends of the oppositely disposed
sheets are located in the fold.
,
75
2,116,782 _
v
5
I65 and ‘has its other end connected by means of
The stacking arrangement
As indicated in Figs. 3, 4, and 5, the interfolded
sheets are stacked between oppositely. disposed
series of oscillating ?ngers I14—I'I4. Each se
ries of ?ngers comprises a plurality of like ?ngers
which are secured in spaced relation to a shaft
I15 which is journaled in suitable bearing brack
ets I16 mounted‘ on the side frames._ As clearly
shown in Fig. 4, the ?ngers include tail portions
10 III which have ?at, smooth inside surfaces and
head or hook portions I18 which are provided
with outwardly facing barbs I19.
Both series of ?ngers 14 are‘ oscillated in uni
son, each series being actuated by an eccentric I80
15 mounted on the rotating shaft I3l. The eccen
trics I80 act through connecting rods such as I8I
and arms I82, the latter of which are suitably
?xed to the respective shafts I15. The eccen
trics I 80 are so set with relation to each other
that the respective series of ?ngers I14 will be
simultaneously oscillated in ‘the same direction.
When the respective jaw sets 31 approach their
1 lowermost position, they carry the folded paper
web underneath the hooked ends I18 of the ?nger
series and the arrangement is such that the pa
per is released from the jaws by opening of the
' latter approximately at the time the forward fold
ed edge of the paper engages the inside faces I11
of the stacking ?ngers. It vwill also be evident‘
30 that the stacking ?ngers ?ll-I14 are continu
ously in movement owing to the eccentric actu
ating mechanism arrangement described, but that
when the jaws carry the sheets into the bite of the
stacking ?ngers, the jaws are in forwardly in
cllned position. When the edge of the sheet en
gages the inside face of the stacking ?ngers, the .
a link I90 to the free end of the arm I88 (see
Figs. 3 and 6). The arm I88 is provided with a
boss I9I on one side which is suitably bored as '
indicated at I92 to receive a plunger I93 having
a tooth I94 adapted to engage the teeth of the
ratchet I86. A spring I95 is provided for urging
the‘ plunger I93 into engagement with the
ratchet.
" It will be seen that each time the left hand. 10
tucker I64 moves upwardly, the arm I88 will be
rocked in a clockwise direction as viewed in Figs.‘
3 and 7 and that the ratchet I86 will incidentally
be advanced. The extent of movement imparted
to the ratchet I86 may be adjusted to the desired 15
amountby means of an adjustable connection
indicated at I96 between the rock arm I89 and
the link I90. A spring-pressed pawl I91 carried
by a bracket arm I98 is provided for preventing
back lash of the ratchet I88 as an incident to the 20
rearward swinging movement of the arm I88.
Anlarm I99 is pivotally mounted as indicated
at 200 on a portion‘of the bracket I88. This arm
I99 is yieldingly pulled upwardly by means of a
tension spring 20I connected between the arm as 25
indicated at 202 and the end of the bracket I88
as indicated at 203“. The arm I99 is provided
with an upstanding lug 208 which carries a
toothed element 205 which is adapted to ride on
the periphery of the disk I 85 and to drop into the 30
notch I81 thereof, once for each turn of the
disk. If it is desired to provide packages of a
small number of sheets, the disk I85 may be pro
vided with additional notches I81. In that case,
the ratchet I86 will, of course, be modi?ed'to
provide teeth in the desired multiples of teeth.
It will be understood that during the normal '
jaws begin their rearward oscillation. The en
operation of the machine, the toothed element
tire stack of sheets between the stacking ?ngers 205 will be in engagement with the periphery of
is thus shifted back and forth and this shifting is ' the disk I85 so that it will hold the arm I99 in
highly desirable in that it tends to even out the its lowermost position as illustrated in Fig. 3.
stack so that it may be, readily divided into In this position, a catch 206 carried by the arm
bunches and packed in suitable boxes.
'
Sheet counting mechanism
45
‘ To facilitate packing of ‘a certain number of
sheets in a box; for example, a cardboard box in
which the sheets are sold at retail, the following
mechanism is provided for counting the sheets
and indicating points of division of the stack into
bundles of a predetermined number of sheets.
In this instance, the counting mechanism about
to be described is associated with the stacking
?ngers on the left hand side of the machine as
viewed in Figs. 4, 6, and '7.
55 > A bracket I83 is fixedly supported on a tie bar
I84 which extends between the side frames of the
machine and on the inner or free end of the
bracket I83, there is rotatably mounted a disk I85
having associated with it a ratchet wheel I86.
The ratchet wheel I86 is formed integral with or
secured to the disk I85 so as to be maintained in
I99 is below the path of oscillation of the lower
end of an arm 201 which is ?xedly secured to the
45
oscillating shaft I15.
When the toothed element 205 drops into the
notch I81, the catch 206 will be in position to
engage the lower end of the arm 201, thereby to
prevent rocking of the stacking ?ngers I14 in
counterclockwise direction as viewed in Fig. 7. 50
The ?ngers I14 being thus held stationary while
the jaw set 31 continues its normal operation, it
will be evident that the edge of the folded paper
brought under the hooks I18 will engage the 55
inside faces of the ?ngers I14 and‘be upset sub
stantially as indicated at 208 in Fig. 7. Such
upsets form clearly visible marks in the stack of
sheets and ‘ readily indicate where the stack
should be separated to form bundles of the de 60
sired number of sheets.
To permit the left hand series of stacking
?ngers I14 to be locked in the described position,
?xed relation thereto. , The ratchet I86 is pro
marking the sheets, the connecting rod I8I
vided with teeth corresponding in munber to‘the vfor
which normally transmits oscillating movement 65
number of sheets it is desired to package in a sin
to the fingers from the eccentric I80 is of special
gle box, or in the case of packages of small num
ber of sheets, the ratchet may have multiples of construction, which is best shown in Fig. 10. The
the number or sheets. The disk I85 is provided arrangement as shown in Fig. 10 includes an
eccentric collar 209 which is provided with'a boss
a with a notch I81 in its periphery.
The ratchet I86 and disk I 85 are rotated step 2I0 bored out and threaded to receive a sleeve 70
70
by step, one step for each sheet added to the 2| I. A look nut 2I2 serves to normally hold the
stack. Such step by step rotation is effected sleeve 2“ in adjusted position relative to the
eccentric collar 209. The sleeve 2“ is bored out
through the agency of an arm‘ I88 which is con
nected to the ratchet and disk element, and arm so. as ~to provide an internal shoulder 2I3 on
I89 which is secured at one end to the rock shaft which the head 2“ of a stem element 2I5 may 75
75
6
.
2,116,782
seat. The frame 2l5 ?ts slidably in the sleeve
opening portion M6 and a spring 2“ disposed
within the sleeve between the head 2l4 of the
stem, and the eccentric collar serves to normally
transmit power from the eccentric collar to the
stem H5. The stem 2l5 has secured to its outer
end a suitable end member 2l8 which is con
nected to the arm I82. It will be seen that when
the stacking ?ngers I14 are locked against oscil
10 lation by the above described means, the eccen
tric element may continue its normal operation
' while the arm “12 remains stationary. The rela
.15
tive movement between the eccentric member
239 and the arm I82 is then taken up by com
pression of the spring 2“.
For facilitating adjustment of the depth or
extent ‘of upset produced by the described ar
rangement, the catch element 206 is adjustably
mounted on the arm I99. As shown in Fig. 9,
20 the catch element 206 is provided with a dove
tailed sliding connection with the arm I93 and it
is adapted to be adjusted longitudinally of the
arm by means of a rod 2l9 which has threaded
engagement with the base portion of the catch
member. The outer end of the rod H9 is rotat
ably supported in a lug 228 formed integral with
> the bearing end 286 of the arm I99 and adjust
ment of the rod 2I9 may conveniently be effected
by means of a hand wheel 22l suitably supported
30 for rotation and connected to the outer end of
the rod by means of a universal joint 222.
> The stacking, receiving, and handling mechanism
'As clearly shown in Fig. 3, the interfolded
sheets are guided between the oscillating ?ngers
I74 and enter a conveyor 223 which conveys the
stack of interfolded sheets to one end of the
machine as indicated at 224 (Fig. 1).
The feed movement of the stack of sheets is
rollers 242 will be jammed between the cam
faces 2“ and clutch face 240, and thereby trans
mit rotation to the internal clutch member 238.
The ‘rollers 242 are loosely con?ned in operative
relation to the respective cam faces by means of
pairs of cross pins 243 which are carried by re
taining plates 244 and 245. The retaining plate
245 is seated on a shoulder 246 formed’on the in
ner clutch member 238 so as to thereby maintain
the pins 243 in the desired position from the 10
axis of the clutch mechanism. Plungers such
as indicated at 241, urged outwardly by light
springs such as 248, are provided in the inner
clutch member 238 and serve to normally main
tain the rollers 242 in contact with the oppositely 15
disposed‘ faces between which they are jammed
for transmitting movement from the outer to the
inner member.
“
As shown in Fig. 14, the plungers act against
one of the cross pins 243' to thereby effect rela
20
tive movement between the pin carrying plates
244 and 245 and the pins carried thereby, where
by the rollers are normally, maintained in the
said position. The springs 248 are sufficiently
light so that they will not maintain the rolls 242 25
in such tight' engagement between the inner and '
outer clutch faces that reverse movement of the
outer clutch member can be transmitted to the
inner member. Of course, the resistance of the
stack of sheets and the. frictional resistance of 30
the conveyor mechanism tends to resist rearward
movement.
The 'outer clutch member 239 has connected
to it the arm member 234 so that oscillation of
the arm as produced by the eccentric 23! will
be imparted to the outer clutch member and
thereby, in one direction'only to the inner clutch
member. The gear 236 is suitably secured to the
inner clutch member» and hence the step by step
40 controlled by a traveling bottom in the guide , feed movement of the inner clutch member will 40
which comprises a plurality of chains 224' which be transmitted to the gear 237 and the conveyor
are advanced step by step. The chains 224’ are
supported by sprockets 225 on a shaft 226 in
the delivery end of the conveyor and by sprockets
45 221 on a shaft 228 near the receiving end of the
conveyor. The shaft 226 is rotatably mounted in
suitable brackets 228 carried by the frames 40
and 4| and the shaft 228 is rotatably mounted in
suitablebearing brackets 230 also mounted on
the frame sides 40 and 4|.
_
For advancing the conveyor chains 224', it is
preferred that means be provided whereby the
speed of the feed movement may be accurately
controlled. In this instance, the means provided
55 includes an eccentric 23! mounted on the shaft
I3I, a collar 232 embracing and actuated by the
- eccentric, a connecting rod 233, a rock lever 234,
chains 224'.
'
For facilitating adjustment of the extent of
feed movement imparted by the described mecha
nism, the connecting rod 233 is adjustably con 45
nected to the clutch arm 234 through the agency
of a bearing block 249 which is slidably mounted
between the forked portions of the arm 234 as
clearly shown in Fig. 11. The block 249 is‘
adapted to be adjusted lengthwise of the arm 50
by means of a screw 250 which threadedly en
gages an aperture 25! in the end of the arm 234.
The inner end of the screw 25!] is anchored to
the block 249 in any suitable manner to permit
rotation of the screw 250 relative to the block 55
but to cause the block to follow the screw in
wardly oroutwardly. A lock nut 252 may be pro
ball clutch mechanism 235, and intermeshing
vided on the screw 250 for locking the same in
gears 235 and 231. The gear 231 is mounted on
and keyed to the shaft 228 and the gear 236 is
connected to one of the elements of the clutch
the desired position of adjustment.
235.
The structure of the clutch 235 is best illus
trated in Figs. 13 and 14. As there illustrated,
65 the structure includes inner and outer clutch
members ‘ 238 and 233 respectively, the outer
member providing an internal clutch face 240.
The inner member 238 is formed somewhat in
the manner of a ratchet wheel so as to provide a
70 series of substantially ?at cam faces~24l. Roll
ers 242 are positioned between the respective cam
faces 2“ and the oppositely disposed portions
of the internal clutch face 240, and by rotation of
the outer clutch member 239 in one direction
75 (counterclockwise, as shown in Fig, 14,), the
A hand wheel 253 is secured to one end of the 60
shaft 228 for facilitating manual feed of the con
veyor chains 224 when it is desired to empty the
conveyor 223 or for any other purpose. It will
be understood that the conveyor may readily be
manually advanced since the clutch mechanism
235 permits the gears 231 and 236 to be ad
vanced independently of the outer clutch mem
ber and arm 234.
General remarks
70
The principle of the Nichol patent before al
luded to is, of course, retained in the above de
scribed mechanism, but the various elements of
the mechanism have been modi?ed so as to par
ticularly adapt the mechanismvto the successful
7
2,116,782
interfolding of light-weight, flimsy tissue paper edly mounted on the machine, a pair of cooper
which could not be successfully folded on the ating rolls. rotatably mounted in said end mem
bers, a d eccentric means for mounting one of
Nichol patent machine. In the described struc
ture, the mechanism is arranged to divide a wide said rols in said end members for adjustmen
‘
sheet of material into two narrower sheets and to ftowards and from the other roll.
5. In a machine of the class described, the
simultaneously interfold the narrow webs to
thereby form two stacks of interfolded sheets. combination of means for transversely severing
Hence, the machine described may be said tube a web of paper at ‘longitudinally spaced intera double machine. Obviously, the mechanism vals, said means including a roll having a longi
may be restricted to a single machine or it may tudinally unbroken, smooth surface, means for
be extended to form machines for simultaneously folding the severed sheets, and means for strip
ping the sheets from the roll and guiding the
interfolding'more than two webs.
same to said folding'means, said stripping means
The various elements of mechanism are syn
comprising a member'provided with, a beveled
chronized in their operative relation by the vari
edge
adapted to engage the roll surface,.means
ous
gear
connections
described
and
it
will
be
15
understood that in order to obtain accurate for pivotally mounting said stripper member,
timing and freedom from ‘play, accurate driving and means for yieldingly urging said stripper
connections are desirable. It is preferred that ~member into engagement with the roll surface.
6. In a machine of the class described, the
the intermeshing gears 98-99 and l00.-—Hlll be
combination of means for transversely severing a
20 formed of two sections as indicated in the draw
ings and the two sections adjustably connected web of paper at longitudinally spaced intervals,
so that play incident to wear may be‘taken up said severing means including a roll, means for
by appropriate adjustment of the gears. For folding the severed sheets, and means for strip
ping and guiding the sheets from said roll in
facilitating manual adjustment of the mecha
cluding a plurality of spaced stripper ?ngers hav
25 nism as a whole to any predetermined or de
sired position for any purpose whatever, a hand ing beveled ends adapted to engage the ‘roll sur-_
‘wheel 254 is connected to-one end of the main face, means for pivotally mounting said ?ngers,
means for yieldingly urging said fingers into
driving shaft 8'’.
,
Changes in the described structure may be engagement with said roll surface, and ?xedly
mounted guide ?ngers constituting continuations
made without departing from the spirit of the in
vention, the scope of whichshould be determined
by reference to the following claims, the same
being construed as broadly as possible consistent
with the state of the art.
'
I claim as my invention:-'-
e
_
-
1. In a machine of ‘the class described, ‘th
combination of means for ‘transversely severing
a web} of paper at longitudinally spaced intervals,
said means including a cutter roll, meansfor
40 feeding the web to said roll; means'for with
drawing the web from said roll, said feeding and
withdrawing means being operated to feed the
web and withdraw the web at substantially the
$1
,
10}
15
20
25
30'
of ‘said pivotally mounted strippers.
'7. In a machine of the class described, the
combination of means for transversely severing
a web of paper at"longitudinally spaced inter
vals to divide the web into/sheets, means for 35
folding said vsheets including‘ a pair of gripping
jaws and means for tucking the sheets into the
bite of said jaws, said jaws comprising upper
and lower members, means‘pivotally connecting
said jaw members, and coil spring means dis
posed concentric with the axis of the pivotal con
40
nection; between the jaw members for normally
closing the same.
'
'
8. In a machine of the class described, the’
same speed so as to maintain the web under pre'
determined tension on the cutter roll, said feed- ‘ “combination of means for transversely severing
.ing means including a pair of rolls, eccentric
means for mounting one of said rolls for adjust
ment towards or from the other, and means in
terconnecting said rolls for rotation at the same ‘
speed.
'50 peripheral
2. In a ‘machine
of the class described, the
combination of means for transversely severing
a paper web at longitudinally spaced intervals,
means for feeding the web to said severing means,
55 said feeding means comprising a unitary struc
ture including end members adapted to be ?xedly
mounted on the machine, and a pair of cooperat
ing rolls rotatably mounted in said end members.
3. In a machine of ,the class described, the
60 combination of means for transversely severing
a paper web at longitudinally spaced intervals,
means for feeding the web to said severing means,
said feeding means comprising a unitary struc
ture including end members adapted to be ?xedly
65 mounted on the machine, a pair of cooperating
rolls rotatably mounted in said end members, and
relatively independent webs of paper at longi~
tudinally spaced intervals to divide said webs
‘into sheets, means for interfolding the sheets
of the respective webs including a pair of jaws
and a-tucker for tucking the sheets into the 50
grip of the jaws, means for propelling the jaws
downwardly and outwardly, means cooperating
with said jaws for withdrawing the sheets\from
the jaws and stacking the interfolded sheets,
said means comprising. a pair of oppositely dis
posed ?ngers having retaining hooks at their
upper ends‘, said jaws being adapted to feed the"
folded sheet portions beneath the hook of one of
said ?ngers and means for oscillating said ?ngers
in unison to produce a weaving movement in 60
the stack of sheets whereby to produce evenness
in the stack, and means for temporarily locking
one of said fingers in predetermined position and
at predetermined intervals for e?ectlng upsetting
of a folded sheet delivered to such ?ngers, there
65
by to form visible marks dividing the stack into
means for mounting one of said rolls in said end
sections ' containing predetermined numbers of
members for adjustment towards and from the
interfoided sheets.
other roll.
scribed, means for transversely severing‘ a pair of 70
paper webs at longitudinally spaced points to di
vide such. webs into sheets, 'means for interfold
ing the sheets of the respective webs including
jaws adapted to propel the folded sheets through >
predetermined paths of travel, means for re
‘
I
4. In a machine of the class described, the com
bination of means for transversely severing a
paper web at longitudinally spaced intervals,
means for feeding the web to said severing means,
said feeding means comprising a unitary struc
75 ture including end members adapted to be ?x
- 9. In an interfolding machine of the class de
2,116,782
ceiving the interfolded sheets from the jaws and
stacking the same, said means including a ?nger
- having a hook at its upper end, means for pivot
ally mounting said ?nger intermediate its ends,
means for oscillating said ?nger about its pivot
including an arm connected to said ?nger, a cam
device and means connecting the cam device and
said arm including a yieldable element for trans
mitting movement from said cam device to said
arm, and means for temporarily. locking said
?nger in predetermined position at predeter
mined intervals for effecting upsetting of the in
terfolded sheet delivered thereto by said jaw,
said yieldable means serving to permit continued
15 normal movement of the cam means while said
?nger is locked in said predetermined position.
10. In an interfolding machine of the class de
scribed, means for transversely severing a pair of
I paper webs at longitudinally spaced points to di
20 vide such webs into sheets, means for interfold
ing the sheets of the respective webs including
jaws adapted to propel the folded sheets through
predetermined paths of travel, means for receiv
ing the interfolded sheets from the jaws and
25 stacking the same, said means including a ?nger
having a hook at its upper end, means for pivot
aliy mounting said ?nger intermediate its ends,
means for oscillating said ?nger about its pivot
including an arm connected to said ?nger, a cam
30 device and means connecting the cam device and
said arm including a yieldable element for trans
mitting movement from said cam device to said
arm, and adjustable means for temporarily lock- -
ing said ?nger in predetermined position at pre
35 determined intervals for effecting upsetting of
the interfolded sheet delivered thereto by said
a sheet to the stacking means.
'
12. In an interfolding machine of the class de
scribed, the combination of means for transverse
ly severing a pair of paper webs at longitudinally
spaced intervals to divide the webs into sheets,
means for interfolding the sheets of the respec
tive webs, a stacking mechanism for receiving the
interfolded sheets from the interfolding means,
a chute for receiving the stack from said stacking
10
means, a conveyor for supporting the stack of
sheets .in said chute, means for advancing said
conveyor step by step, and adjustable means for
regulating the extent of movementimparted to 20
said conveyor at each step, whereby the position
of the top'of the stacked'sheets relative to the
stacking mechanism is maintainable substantial
ly constant.
I
_
13. In an interfolding machine of the class de
scribed, the combination of means for trans
versely severing a pair of paper webs at longi
25
tudinally spaced intervals to divide the webs in
to sheets, means for interfolding the sheets of
the respective webs, a stacking mechanism for 30
receiving the interfolded sheets from the inter
folding means, a chute for receiving the stack.
from said stacking means, conveyor means for
supporting the stack of interfolded sheets in said
tinued normal movement'of the cam means while
said ?nger is locked in said predetermined posi
said means including a cam device and a connect
tion.
‘
11. In an interfolding machine of the class’ de
scribed; the combination or means for ‘trans
versely severing a pair of paper webs at longi
tudinally spaced intervals to divide said webs in
45 to sheets, means for interfolding said sheets in
cluding a pair of jaws and a tucker cooperating
therewith, means for receiving the interfolded
sheets from said interfolding means comprising
oppositely disposed ?ngers, means for pivotally
50 mounting said ?ngers, means for rocking said
?ngers in unison on their pivots to thereby weave
the interfolded sheets back and forth so as to
produce evenness in the stack of sheets between
the ?ngers, means for temporarily locking one of
55
normally maintaining‘ the latter in inoperative
position, said positioning means having means
for causing said latch to move to operative posi
tion, and means for actuating said positioning
means each time said interfolding means delivers
chute, means for advancing said conveyor step 35
by step including a ball clutch device including
a laterally extending arm, means for rocking said
arm to actuate said conveyor through said clutch,
jaw, said yieldable means serving to permit con
40
locking means including a latch member, posi
tioning means engaged by said latch member for
the ?ngers in predetermined position at prede
termined intervals for eifecting marking of one
of the interfolded sheets to thereby form visible
means for dividing the stack into bundles con
taining a predetermined number of sheets, said
ing rod for transmitting movement from said 40
cam device to said arm, and an adjustable con
nectionv between said connecting rod and arm
whereby the extent of movement imparted to
said arm and to said conveyor may be adjusted.
14. In a machine of the class described, the
combination of means for transversely severing
a web of paper at longitudinally spaced intervals,
said means including a roll having a longitudi
nally unbroken, smooth surface, means for fold
ing the severed sheets, and means for stripping 50
the sheets from said roll and guiding the sheets to '
said folding means, said stripping means com
prising a member provided with a bevel edge
adapted to engage the roll surface, means for
mounting said stripper member so as to permit
said bevel edge to follow the surface of said roll, -
and means for yieldably urging said stripper
member. into engagement with the roll surface.
JAMES J. DELOYE.
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