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Патент USA US2110770

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March 8, 1938.
L, v__ LUclA
2,110,770
MACHINE FOR AND METHOD OF MAKING PAPER CUPS
Filed Nov. 8, 1935
3 Sheets-Sheet 1
March 8, 1938.
L. v. LUCIA
MACHINE FOR AND METHOD
' 2,140,770
MAKING PAPER 'CUPS
3 Sheets-Sheet 2
Filed Nov. 8, 1935
‘
'
[(VVENTOR.‘
March ‘8, 1938;
2,110,770
L. v. LUCIA
MACHINE FOR AND METHOD OF MAKING ‘PAPER CUPS
Filed Nov. 8, 1935
am. .
‘M1a,
3 Sheets-Sheet Q’:
2,110,770
Patented Mar. 8, 193,8 '
UNITED STATES PATENT OFFICE
2,110,770
MACHINE FOR AND DIE'I'HOD OF MAKING
PAPER CUPS
Louis V. Lucia, West Hartford, Conn, assignor to
v on; a corporation of New
Lncup
York
Applicationv November 8, 1935, Serial No. 48,820
27Claim8 (01- 9346.05)
This invention relates to ‘a novel method and
machine for making tapered paper cups from a
web of paper.
,
In the manufacture of cups of this type, by the
5 methods now commonly used, it is necessary to
?rst cut the blanks for the cups from a stack
of sheets by means of a die in a heavy press. The
blanks are then stacked upon a machine‘ and fed
tical section, illustrating the operating of the
various rollers of the machine in forming a cup.
Figure 10 is a view, in central vertical section,
of the web feeding end of the machine.
Figure il-is a fragmentary view illustrating a Cu
gumming device for applying gum to the said web.
Figure 12 is a fragmentary plan view, in ele
vation, illustrating the blank cutting mechanism.
individually thereto by an air operated feeding ' Figure 13 is a plan view of a cup blank as cut 10
the web.
10 device. Such feeding devices are inherently from
Figure ii is a view showing the said blank after
troublesome and the feeding of the blanks to the ?rst folding operation.
,
the machine is affected by atmospheric conditions
Figure 15 is a bottom edge view thereof. "
which frequently create static to such an extent
Figure 16 is a top edge view thereof.
that it will interfere with the feeding operation
Figure 1'1 is a view showing the said blank
15 and also with the operation of the machine itself.
cup.
The object of this invention, therefore, is to folded into a completed
18 is a view showing the modi?ed type
provide a machine which will produce a cup of of Figure
cup produced by the'modiiication illustrated
this type at a high rate of speed and also with
in Figure 3.
.
a minimum of labor by eliminating the operation‘
As‘ illustrated in the drawings, the numeral 5 20
of
cutting
the
cup
blanks
from
a
stack
of
paper
20
denotes a frame comprising side members 6-4
as now commonly done.
A further object of the invention is to provide
a machine for cutting-a blank of correct form,
from a web of paper. and to produce a tapered
25
:iup therefrom with a minimum of waste in mate
al.
.
A still further object is to include, in a ma
chine for making paper cups, a means for ar
having, atone end thereof, diagonal extensions
1-‘! on which are mounted a pair of hangers 8-8
to support a roll of paper web 9 on a spindle Ill.
The said web travels over a web supporting roll
I I mounted upon the, said extensions. A web sup
ply rolier l2, having a tire I! of rubber or other
suitable material, is rotatably mounted ‘on a
shaft il in a bearing ti on the end of'a bar It
ranging. the ?nished cups upon their delivery~ which is hinged to the shaft ii. A pulley Ni 30
is connected to said shaft 14 for rotating the .
The means by which the above objects may be roller II. A belt I! extends over the said pulley
obtained are fully illustrated in the accompany
and over the driving pulley 20 which is connected
ing drawings in which:
7 .
to the said shaft i'l.
30 either in a nested or ‘stacked order.
_
Figure 1 is a plan view in elevation of my im
The said web passes over a guide roll 2|, 35
mounted in the extensions 'l-l, between guide
proved machine.
Figure 2 is a similar view of the continuation
thereof on line 2—2 of Figure 1.
‘ .
Figure 3 is a fragmentary view illustrating a
modification in the blank cutting mechanism
which will produce a blank of slightly different
form for a cup of modi?ed form.
Figure 4 is a view, in central vertical section,
on line 1-4 of Figure 1.
'
'
-
bars 22—2! on a plate 23 that is supported on
said extensions, and over a feed roll 24 which
preferably has a resilient covering 25. Web re
taining spring members 28-26 are mounted on 40
a supporting bar 21 and are in frictional engage
ment with the web 9. ‘Web holding strips 28-48 '
are mounted on a supporting bar 2! for holding
. the end of said web in position.
‘
l
A pair of interrupted web feed rolls Ill-30 are
mounted on a shaft II‘ which is located directly
over the feed roll 24 and rotatable in slide blocks
of the mac
e for delivering the cups ' in a
iia. These blocks are slidably mounted between
stacked arrangement.
posts 31b and are forced downwardly by springs
Figure 6 is a plan view, in elevation, of the gum
32 to cause engagement of the feed rolls ill-ill 60
ming mechanism shown in Figure 4.
of said blocks has a stop“
with
the web.
.’ Figure '7 is a detailed view of a pair of rollers‘
lug ?awhlch engages the bottom ‘of the slide
used in the-machine.
to space the feed rolls from the web during the
Figure 8 is a‘ detailed view of the c
passage ‘of the cutaway portion Q8 thereover.
Figure 5 is a fragmentary view illustrating a
modi?ed form of construction at the delivery end
rollers.
'
~
Figure ‘9"is an enlarged view, in central yer
The rolls IHI are P '
vided with a feeding cir
2, 1 10,770
cumferential surface 33a of a length equal to the the side members 8-8 and has an opening 19
length of web which is to be fed by the said through which the roll 88 projects.
feeding rolls at each rotation thereof.
1 At the sides'of said guide bar 15 are provided
A gumming disc 34 is also mounted on the said folding ?ngers ‘88, 8I, 82, and 83 which are
shaft 3| for applying a strip 35 of adhesive, such also mounted upon said plate ‘I8.
as gum, near the edge of said web during its
A pair of creasing and pressing rolls, are also
passage through the said feed rolls. This disc 34 provided, which comprise a lower roll 84 mounted
is suitably cut away for spacing the said gum upon a shaft' 85 that is rotatable in the side
strips and also to disengage the said web at the ‘ members 8-—8 and an upper roll 85 mounted upon
time. that it is released by the feed rolls 38—3II. the shaft 81 rotatable in slide blocks 88 which are
A cutting-off device, in the form of a punch 38, I slidably mounted between posts 89 and forced 10
is mounted on a carrier 31 vertically slidable upon downwardly by a pair of springs 98. The said
posts 38-38 which are mounted on a die plate roll 84 hasa creasing groove 9| into which fits
39 that has an opening 40 therein adapted to a creasing blade 92 mounted in the upper roll 86.
receive the punch 36 with the cutting edges 4I
Each of said rolls 84 and 8B are provided with
and 42 in shearing contact with the cutting edges corresponding diverging grooves 84a and 86a for
of said punch. The said punch is moved in a the purpose hereinafter described.
downward direction by means of a cam 43 which
is mounted upon the shaft 3| to trip a lever 44
secured to a rock shaft 45 to which is also se
cured a punch operating lever 46 that is con
nected to said slide 31 by a pair of links 41
by means of hinged pins 48-48.
'
The said punch is moved in an upward direc
tion by means of a cam 49 which rocks a lever
. 58 that is also secured to said rock shaft 45.
The end of the web 9 comes- to a stop upon the
plate 39 and is cut off by the punch 35 in the
shape of a blank 5| which rests between a pair
30 of creasing rolls comprising a lower roll 52 that
is provided with a covering 52a of resilient ma
A pair of transfer rolls are provided, .compris- .
ing a lower roll- 93 mounted on a shaft 93a, be
‘tween the side members 8—G, and an upper roll
94 ‘mounted on a shaft 94a which is rotatable in
a pair of slide blocks 95 that are, slidably mounted
between ‘posts 98 and pressed downwardly by a .
pair of springs which are not shown. Each of
said rolls 94 and 99 is also provided with corre
sponding diverging grooves 93b and 94b.
The
upper roll 94 is cut away in its center to pro
vide. a circumferential recess 91 in which is
mounted a gumming pad 98. A plate 99 is pro
vided between the said sets of rolls and mounted 30
on the said side members 8--8. A similar plate
terial, such as rubber, and mounted upon a shaft
53 rotatable in the side members 6--5 and an
I88 is mounted between said side members fol
lowing the said transfer rolls. A pair of shoes
' upper creasing roll 54 which is mounted on a
' shaft 55 rotatable in a pair of slide blocks 55
II“ are mounted on said plate I80, spaced there
from and supportedthereon by means of a bar
I92 on which is also mounted, between said shoes,
a folding ?nger I03 having a guide extension I84
positioned below said ‘bar and also spaced from
slidably supported between upright posts 51 onv
the side members 6—8. The Said upper creas
ing roll 54 is provided with a pair of diverging
the plate I88.
.
'
creasing blades 58 and is cut away as at 59 to pro
~10 ville a clearance between the said creasing rolls
Another pair of pressing rolls comprise an.
40
during a’ portion of their rotation. The said upper roll I85 mounted on a‘ shaft I98 which is
rotatable in a pair of blocks I81 that are slid
creasing roll 54 is forced downwardly into con
tact with the lower creasing roll 52 by means of - 'able between posts I98 andv pressed downwardly
springs 68 acting upon the slide blocks 56 which by springs I99, and a lower roll IID mounted
are provided with stop lugs 8| adapted to engage upon a shaft IIIJa that is rotatable in the side
-with the bottom of the slides in the extensions members 6-4. ‘The said rolls are also provided .
with corresponding diverging grooves I85a' and
51 and support the creasing roll 54 in out-0f
IIIlb.
contact position with respect to the lower creas
A trough III is mounted upon a bar ll! be
ing roll 52 during the passage of said cut away tween the side members 8-6 and following the
portion thereabove. A guard disk 54a is mounted said rolls m5 and no. If desired a trough Illa, '
on said shaft 55 for the purpose hereinafter de
scribed.
'
'
‘
A blank holding shoe 62 is provided for hold
ing the end of the web upon the die plate 39
while the said end is being cut off into the blank
5I by the punch 36, This shoe is mounted, by
means of a lever 83, upon a rock shaft 64 which
is rocked in one direction by a spring 85 to force
60 said shoe downwardly upon said blank.
A lever
66 is also secured on said rock shaft 64 and oper
ated by a cam 81 mounted upon the shaft 55 to
lift said shoe 62 from said blank.
A feed roll 68 is mounted between‘ the side
(i5 members 6-45 on a shaft 69 and a pressure roll
19 is mounted thereabove, and in contact there
with, on a bar ‘II which is supported on slide
blocks 12 that are slidably mounted between the
extensions 13 and forced downwardly by a pair
of
springs
14.
>
.
'
A guide bar ‘I5, having upturned side portions
of a slightly modi?ed form such as shown in Fig
ure 5, may be substituted for the trough III to
accomplish the purpose to be hereinafter de
scribed.
.
.
‘A driving pulley II3, which may. be driven by
any suitable source of power, is connected pref~
erably to one ‘of, the roll shafts such as the shaft
98a. The ventire machine is driven by means .of
this pulley through a system of gears and pinions 60
which interconnect the rotatable shafts, as clear
1y illustrated in Figure 1, on which the various
rolls are mounted. It will be noted that the shaft
I1 is disposed diagonally at an angle of substan
tially 45° to the shaft 53‘ by which it is driven
through a pair of spiral gears H4, Each set of‘
upper and lower rolls are geared together so
that they will rotate in opposite directions in or
der to move a blank in one direction through the ’
machine.
.
.
It will also be noted, from-Figure 4 of the
drawings, that a gumming device is provided to
15a and an opening 15b through which the roll
70 projects, is supported by means of a bracket
75, upon a supporting bar ‘I1. This bar is mount
apply gum to the pad 98 on the shaft ‘93a. - This
_ed'- on the supporting plate 18 which rests. upon
mounted upon' a frame H6 which is supported on,
gumming device consists of a gum container I I5 - I
3
2,110,770
a bar III.
A gumming roll H8 is rotatably
The feed rolls 39—39 will, during their rota
mounted in said frame and extends into the gum
tion, cause the said web to be engaged between
in the container H5. 'A gum transfer roll H9 is the surface‘of the roll covering 25 and the cir
also mounted in said frame in contact'with the ‘ cumferential feed surfaces 33a, thus moving the
said gumming roll and a second gum transfer
roll I29 which is mounted on a shaft I 2I that is
rotatably mounted in the end of the said frame.
A pair of driving discs I22 are also mounted upon.
the shaft I2I.v These driving discs rest upon the
10 transfer rolls 94 and are driven thereby'in order
to rotate the gum transfer roll I29, and through
a train of gears I23, also said rolls I29, II 9, and
H8. A. gum scraper I24 is mounted upon the
frame H5 and rests in contact with the. gum roll
15 H8 to scrape the surplus gum off the said roll
during its rotation. It will be noted that the gum
roll H8 is longer than the transfer roll H9 which
in turn is longer than the transfer roll I29 for
the following purpose.
20
.
’
The gum is picked up from the container by the
roll H8 and applied to the roll H9 from which
it is picked up _by the transfer roll I29 and ap
plied to the gumming pad 98 as it passes under
said roll and contacts therewith. The surplus
gum on the transfer roll I29 will move on‘ the
ends of the roll I29 and accumulate upon the
overlapping ends of the roll H9.
The surplus
gum on this roll H9 will likewise move off its
- ends on to the overlapping ends of the gumming
30 roll H8 whereby the said surplus gum is returned
into the container.
A separate gumming device is provided at the
feeding end of the machine which consists of a‘
gum container I25 having mounted thereon a
35 gumming roll I26 andya scraper I2‘I in contact
36 downwardly, by means of the lever 46, cutting
off the end of said blank on the edges 4| and 42
and thus forming the blank 5I. At this time the
air pump I29 is operated, by means of the ‘crank
I3I, to force a blow of air through the nozzle.
I32 so as to blow the piece of web, which is cut
off, through the opening 49 and into a receptacle
which maybe conveniently placed under the
machine.
The shoe 62 is now lifted by the cam 43 and
the creasing roll 54 will engage the end of
the blank 5|, between the creasing edges 58 and
the surface of the roll cover 52a, moving the
blank forward and at the same time creasing
the same on lines, as indicated by the dotted
lines 5Ia in Figure 13, which diverge from the
theoretical point 5Ib‘ located o? said blank on 30
the axis thereof.
It will be noted, from the illustration in Figure
8, that the creasing edges 58 will force the blank
into the resilient covering 52a of the roll 52;
thus de?nitely forming creases in the said blank ~
therewith. This gumrning device is removably
mounted upon the supporting bars 21 and 29 and
without cutting through it.
During this creasing operation, the sides of
retained thereon, against longitudinal movement,
the ‘blank will move upwardly but, that side on
by means of a notch I2‘Ia in the bottom of. the
40 scraper supporting posts I28 into which the sup
porting bar 21 ?ts.
‘
1
An air pump I29 is mounted upon the side of
the machine and operated through a pitman I39
by means of a crank I3I which is connected to
45 one of the roll shafts. An air nozzle I32 extends
from the end of said pump and ‘is positioned ad
vjacent to the web cutting opening 49.
The operation of my improved machine and
the method of making paper cups therein are as
50
end of said web forwardly to the position occu Cl
pied by the blank 5I and at the same time apply
ing a strip of gum 35 to the edge of the web by
means’ of the gumming disc 34 which receives the
said gum from the ‘gum roll I26. At this time the
cam 61, on, the shaft 55, will permit the spring 1O
65 to force the shoe 62 downwardly upon the said
end of the web. The cam 43 will then move the
lever 44, rock the shaft 45 and force the punch
follows:
which the gum strip 35 is containedwill be held
away from the shaft 55 by means of the guard
54a in order to prevent the said gum from touch
ing the shaft.
H 40
.
The travel of said blank will be continued, by
said creasing rolls, over the plate 18 and under
the guide bar ‘I5 until it is engaged between the
rolls 68 and ‘I9 by which it is then moved for
wardly. While the said blank is being moved by
the said rolls 68 and 19, the edges thereof will
be engaged by the folding ?ngers 89 and 82
which will start to‘fold over said edges on the
A roll of paper web 9 is mounted on the hang
ers 8-—8, by means of the spindle I9, and passed
over the supporting roll II and guide roll 2I so
that a portion of said web will hang loosely below
the roll 9 in the manner clearly shown in Figure
55
, 10 of the drawings. The end of the‘web is then
creases formed by the said creasing rolls. The
?nger 89 will fold the ungummed side a little
ahead of the gummed side of said blank which
is folded over it by the finger 82. The forward
travel of the said blank will be continued by the
said rolls 68 and 19 by which it is pushed under
pushed through the feed rolls 24 and 39-39 and the folding ?ngers 8| and 83 which will fold the
the machine is operated by hand to cause the said sides further, and into a position one.upon
punch 36 to cut a small piece of the web off the ' the other, and guide the said partly folded blank
end thereof and form the front part of the blank between the pressing and creasing rolls 84 and
along the edge 42 of the die.
86. The said rolls will then grasp the end of the
The ‘gumming devices, shown in Figures 6 and blank and continue its forward travel. The
11, are then placed in position and the machine creasing blade 92 on the roll 86, co-acting with
is started in operation. The weight of \the bar the groove 9| on the roll 84, will crease the partly
I8 will serve to keep the web roller I2 in driving _' folded blank on the dotted line 5Ic, indicated in
contact with the web on the roll II, which is Figure 14, while the surfaces of said rolls will
loosely mounted, and rotation of the said roller squeeze the two sides of the blank upon the cen
I2, by means of the belt I9 from the pulley 29 on tral portion thereof, as shown in Figure 7 of the
the shaft II, will unwind the web from the roll drawings, causing the said two sides to be ad
with a continuous motion at a speed equal to
hered together by means of the gum 35. 'The 70
that at which the said‘ web is fed through the said crease, on the dotted line 5Ic, will
machine; thus maintaining the loose portion of
web above described in order to eliminate uneven
resistance‘ to the pulling of the web by the feed
75
rolls.
'
cause the end 5Id of said blank to as
sume an upward position as clearly indicated
in dotted lines in Figure 9. The travel of said
blank is continued by said creasing rolls and the 75
2,1 10,770
4
said upwardly extending end of the blank will
move through the clearance 91 in the roll 5| and
past the gumming pad 98, as clearly shown in
dotted lines in Figure 9. The said pad, having
pickedgum off the gumming roll no, will deposit
the said gum upon the said partly folded blank
directly in back of the crease as indicated at
I33 in Figure 14.
At the same time the said
slightly di?erent form as compared to the blank
5|. ,In this modification, the creasing edges"
on the creasing roll 54 are diverged on a slightly ’
different angle so that they will crease the blanks
on dotted lines I35. 7 The said blank is folded by
the machine in the same manner as the blank 5|, -
with the result that a cup of the form shown in
Figure 8 of the drawings will be produced in
stead of the cup as shown in Figure 17.
I
partly folded blank will be engaged by the trans
While I have illustrated and described a ma
10 fer and pressing rolls 93 and BI and its forward
travel continued thereby. The said blank will ~ chine of the construction shown in the drawings
then pass under the shoes i0! .which will en
gage the sides of the blank to hold the same
for producing the said cups, it is to be under
stood that, if desired, this machine may be fur
ther modi?ed in its construction without de
parting vfrom vthe scope of my invention. For 15
downwardly upon the plate I00. The said up- '
,15 wardly extending en‘d 5ld of the blank will move . instance, a set of cutting rolls may be used, in
between the said shoes and strike the folding
?nger 103. The said ?nger will cause the said stead of the cut-off device illustrated in Figures
10 and 12, so that the web is cut as it passes
end of the blank to be folded backwardly upon the
through the said cutting rolls without requiring
gum I33 during the passage of the blank there
20
an intermittent movement thereof.
'
20 under. The guide IM' will guide the said end
It is also pointed out that the primary object
between the pressing'rolls lll5'and H0 which
rolls will then press the said end l3'3 upon the of my invention, which is to produce a cup of
partly folded blank to cause it to be adhered in the tapered type from a web with a minimum
position thereon and move the said blank, which of waste, is accomplished by [disposing the mech
anism for feeding the web 9 diagonally and at
25 is now in the form of a completed cup, for
wardly and deliver the same-upon the trough an angle of approximately 45° to the axis of that
Ill. As clearly illustrated in Figure 4, this portion of the machine which comprises the fold
ing mechanism.
trough is so disposed, with respect to the creas
Thus a blank which is substantially square in
ing rolls I05 and H0, that it will hold the ?nished
shape,
with the exception that it may have either 30
cups
in
a
position
whereby
they
will
be
received,
30
one or two ‘corners thereof cut off, is produced
as they are delivered upon the trough, one within
the other in' a nested form. The said trough for such a cup by a simple cutting operation and
may be made of a width suitable to slightly with a minimum of waste; the said blank being.
squeeze the sides of the cup together so .as to disposed, with relation to the said machine, so’
35 partly open the cups as they are delivered upon that it will be foldedv thereby on lines diverging 35
from its axis, which axis extends diagonally
the said‘ trough and thereby facilitate the re
'
ception of the cup coming through the rolls into through said blank.
I claim:
‘
the preceding cup which is already in the trough.
1. In a machine of the character described for
When it is desired to have the cups delivered
forming paper cups from a web, a mechanism 40
40 from the machine in stacked arrangement, the
for feeding said web to said machine, a cutting
trough may be shaped as illustrated in Figure 5
in which the trough Illa is provided with an off device for removing a section from said web
upturned portion adjacent to the rolls I05 and. and thereby producing a cup blank from the end
H0. This upturned portion will tend to lift the thereof, and a folding mechanism adapted to
move said blank through said machine on a plane 45
46 end of the cup, as it is delivered from the rolls,
with said cutting device and in a direction that
so that the following cup will slide underneath
it; thus the cups are delivered into the trough is diagonally to the axis of said web and during
one under the other. The said trough may be‘ said movement fold the said blank to form a cup
_
madev of a suitable length and the sides thereof therefrom.
2. In amachine for producing paper cups of 50
50 raised gradually in a direction towards its end
the character described from a web,la feeding‘
so that the cups, as they are pushed forward by
their delivery from the machine,‘ will also be mechanism, a folding mechanism, said feeding
lifted into a substantially upright position and mechanism comprising means for feeding the end
one behind the other as'clearly illustrated in the of said web at an angle to the axis of said fold
ing mechanism, means for removing a single
55 Said Figure 5.
For the purpose of aiding in the dispensation of ' waste portion of said web at a distance from its
the cups, it is‘p-r'eferred not to sharply fold the end and thereby cutting off the said end and
edges thereof forVtheir entire ‘length, but to completely forming a cup blank having its axis
fold the upper portion of said edges into-.»what extending at an angle to the axis of said web
and disposed in the direction of travel of the 60
60 may be termed vas a rolled edge. This is accom
said folding mechanism, and means in the said
plished by the method clearly illustrated in Fig
folding mechanism for creasing the said blanks
ure 7 from which it may be seen that the edges
of the cup register with the diverging grooves on lines diverging and at-an angle to the axis.
thereof and folding’ the said blank at the said
‘ 84a and 86a which will allow the folds of the
creases.
/
said
edges
to
remain
in
a
slightly
extended
posi
65
3. A machine for producing a cup of the char
tion while the central portion of the cup is
squeezed together by the rolls.
'
My improved machine may be constructed, as
illustrated in Figure 3,’ to produce a cup of
slightly modi?ed form such as that illustrated
0 in Figure 18. In this construction, the cut-off
-'punch and die is made of a-slightly different
shape so that the corner of the blank is not cut
off with the waste portion; thus producing the
75 blank I34 shown in Figure 3, which is of the
acter described from a web; said machine com
prising means for feeding the said web to said
machine, single means for cutting off the end of
said web and thereby completely forming a cup
blank, and a mechanism for moving the saidv
blank in a direction at an angle to the axis of
said web and on a plane therewith and folding
said blank during said movement. _
4. In a machine of the character described for
2,110,770
producing cups from a web, means ‘for feeding
the end of said web to said machine, a device
, for cutting off the end of said web and thereby
forming a cup blank upon said machine with its
axis angularly disposed with relation to the axis
of said web, folding mechanism comprising a
plurality of rolls for moving said blank through
said machine in the direction of its axis, means
for partly folding said blank with its side por
10 tions in overlapping position upon the central
portion thereof, means for folding the forward
' portion of said partly folded blank upon the said
overlapping sides and thereby complete the fold
ing of said blank into a cup, and pressure rolls
15 for pressing the folded portions of said'blank
into‘ forceful contact upon each other, said pres
5
moving thereon during the folding of said end,
and a pair of pressing rolls for forcing the said
folded end into contact upon said overlappingv
sides to complete said cup.
8. In a machine for forming paper cups from $1
a blank of sheet material, a folding mechanism
comprising a plurality of pairs of rolls for creasing
said blank, means for folding the same into a com
pleted cup, and cup supporting means adapted
to receive and support the said cups in a position 10
wherein they are nested one partly within the
other as they are delivered from the machine.
9. In a machine for forming paper cups from
a blank of sheetmaterial, a folding mechanism
comprising a plurality of pairs of rolls for creas
ing said blank and means for folding the same
into a completed cup, a trough positioned to re
ceive said completed cups as they are delivered
sure rolls having grooves in the surfaces thereof
to prevent pressure upon the folds forming the
, from said machine, and means associated with
side edges of said cup.
said trough for tipping the last cup received on _
.5.
In
a
machine
of
the
character
described
for
20
said trough in a position whereby its end is
producing cups from a web, means for feeding
disposed to guide the following cup underneath
the end of said web to said machine, a device
for cutting off the end of said web and’thereby
forming a cup blank on said machine, mecha
25 nism for partly folding said blank into a tapered
form while moving thesame through said ma
chine, means for creasing said partly folded
blank transversely to its axis and continuing the
movement of said blank, and a stationary ?nger
positioned to engage the point of said ‘partly
folded blank during the said movement thereof
and fold the same ‘at said transverse crease to
complete said cup.
‘
6. In a machine of the character described for
35 producing paper cups from a blank, folding mech
the same and thereby arranging said cups one un- >
der the other in overlapping position; said trough
having diverging sides gradually straightening
23
and increasing iniheight towards the end of said
trough whereby the said cups will be raised to
wards the perpendicular and in stacked arrange
ment as they accumulate and move forwardly in
said trough.
10. A machine for making paper cups of the
character described from a paper blank, folding
means for partly folding said blank into a tapered
form while moving on a line of travel, means for
transversely creasing said partly folded blank ..
anism adapted to move said blank through said and causing the forward portion thereof to be
spaced from said line and a stationary member
machine and comprising a creasing roll for creas
ing said blank on lines at an angle to its axis, adapted to engage said forward end and fold the
means for partly folding the same on said lines same on said transverse crease during the move
40
ment of said blank.
40 into a tapered form, means for positioning the
11..A machine of the character described for
forward end of said partly folded blank at an
angle to the adjacent portion thereof, a stationary producing cups from a web; said machine com
member positioned to intercept the said forward ‘ prising means ‘for feeding the end of said web
end during its movement past the said member thereto, means for cutting off a portion of said
and fold the same upon said adjacent portion, web and thereby forming a cup blank, means for 45
and means adapted to guide the said adjacent moving said blank on said machine with its axis
portion in the course of its movement during the disposed at an angle to the axis of said web and
folding of said forward end.
I
l
7. In a machine of the character described for
50 producing cups from a web, a bed, a device for
cutting off the end of said web and thereby form
ing a cup blank upon said bed with its axis dis
posed at an angle to the axis of said web, a fold
ing mechanism comprising a plurality of pairs of
Q1 21 rolls adapted to engage said blank therebetween
and move the same in the direction of its axis
upon said bed and during said movement fold the
said blank into a tapered cup; said mechanism
and rolls comprising a pair of creasing, rolls
60 adapted to crease said blank on lines angularly
disposed with relation to its axis, means for partly
folding the said blank on said lines with its sides
in overlapping position upon the central portion
thereof, a pair of pressing and creasing rolls for
transversely creasing said partly folded blank and
pressing the said overlapping sides into contact
with each other, a stationary folding member_
spaced from said bed and in position to be engaged
by the forward end of said partly folded blank
during its movement thereunder and thereby fold
the said end upon the said overlapping sides at
. said transverse crease, stationary retaining mem
bers spaced from said bed and adapted'to guide
the adjacent portion of said partly folded blank
in its’ movement with relation to said bed while
on a plane with said feeding means, means for.
creasing said blank on lines diverging with rela
tion to its axis while moving the same in the 50
direction of said axis, folding means for folding
the side portions of said blank on said creases in
overlapping position of the central portion there
of, means for creasing the said blank transversely
to its axis, and’ separate folding means for folding
the forward portion of said partly folded blank at
the transverse crease.
12. A machine of the character described for
producing cups from a web, means for feeding
the end of said web to said machine, a device for
cutting off a portion from said end and thereby
forming a cup blank upon said machine, a plu
rality of rolls for moving said blank through said
machine in the direction of its axis, means for
first folding two corner portions of said blank
upon the central portion thereof, means for fold
ing another corner of said partly folded blank,
together with a portion of the said two corner
portions first folded upon the same to complete a
cup,‘ and means for applying adhesive to said 70
blank for securing the same in cup form.
13. In a machine for making paper cups from'
a blank of sheet material, a mechanism for fold
ing the said blank into a completed cup, an in
clined trough positioned to' receive said com
7.
6
2,110,770
pleted cups as they are delivered from said ma
ing said web through said cutting device, a pair
, chine; said trough having sides adapted to raise
of rotatable shafts on which said feed rolls are
, said cups from a ‘horizontal to a substantially
mounted and 'means on said shafts for directly
vertical position and cause the same to be ar
operating. the said cutting device in synchronism
ranged in stacked position as they accumulate
upon and move forwardly in said trough.
14; In combination with a machine for making
paper cups of the character described from a
web of paper, means for cutting off a portion
10 of the end of said web to form a cup blank there
_ with said feed rolls.
20. A machine for making cups of the charac
ter described from a web comprising a folding
mechanism, a feeding mechanism for feeding the
end of said web to said mechanism in position
to be engaged thereby, a cutting device posi 10
from, means comprising feed rolls for‘ feeding
tioned between said feeding and folding mecha
the end of said web -to said cutting means and
nisms for cutting off the end of said web in the
form of a cup blank prior to the delivery thereof
means co-axlal with said feed rolls for applying
adhesive to said end of the web before the same
15 is cut oil’ into a cup blank.
,
15. In a‘ machine of the character described
for making paper containers from a web of
to the said folding mechanism; said cutting de-.
vice comprising a female' member on a plane
with said feeding mechanism, guide members, a
male cutting member reciprocally movable on
paper; va folding mechanism comprising a pair
of interrupted rolls, a feeding mechanism for
20 ‘feeding the end of said web to said folding mech
said guide members ‘and adapted to cut off av
portion of said web and project the same through
the female member of said device, a pair of 20
anism, a cutting device adapted to cut oil’ the - rotatable shafts in said feeding mechanism, feed
end of said web to form a container blank there
rolls on said shafts and means on said shafts
for directly operating the said male member of
from, and a table on which said blank rests dur
ing the cutting operation; said table being dis
25 posed in a position whereby the said blank is
supported with the forward portion thereof in
position to be grasped by the said interrupted
rolls upon completion of the cutting operation.
16. In a machine of the character described for
30 forming paper cups from a web of paper, a fold
ing mechanism comprising a plurality of rolls
including a pair of creasing rolls 'at the forward
end of said folding mechanism, a feeding mech
anism adapted to feed the end of a web of paper
35 to said folding mechanism in position to be en
gaged by said creasing rolls during the rotation
thereof, and a cutting device-adapted to cut off
the endvof said web to form a cup/blank there
from while in position to be engaged by said creas
40 ing rolls; the said creasing rolls being cut away
to prevent engagement of said blank while the
same is being cut 03' from said blank.
1'7. In a machine of the character described for
forming paper cups from a web of paper, a fold
45 ing mechanism comprising. a plurality of rolls
including a pair of creasing rolls at the forward
end of said folding mechanism, a feeding mech
anlsmadapted to‘ feed the end of a web of paper
to said folding mechanism in position to be en
50 gaged by said creasing rolls; a table on which
said end is supported during the cutting off op
eration, and means for clamping said end upon
said table while the same is being‘cut oif from
said blank.
5.5
,
18. A machine for making cups of the charac
ter described from a web of paper comprising a
folding mechanism, a feeding mechanism com
prising a pair of rotatable shafts, feed-rolls ‘on
said shafts for feeding the end of said web to
said folding mechanism, a vertically movable re
ciprocating cutting device for cutting off the end
of said web in the form of a cup blank and means
65
I
v
21. A machine of ‘the character described for
making paper containers from a Web of paper
comprising a folding mechanism, a feeding mech
anism comprising a pair of rotatable shafts, feed
rolls on said shafts for intermittently feeding
the end of said web to said folding mechanism, 30
~a cutting die for cutting off the end of said web
into the form of a container blank, and means
operable by said rotatable shafts for continuously
drawing said web from a roll thereof and main
taining a slack in said web between the inter 35
mittently moving portion thereof and that por
tion which is continuously drawn from the said
roll.
22. In a machine of the character described for ,
making cups from a web of paper, a folding 40
mechanism, a feeding mechanism for feeding the
end of said web in position to be engaged-by said
folding mechanism, said feeding mechanism com
prising a frame, feed vshafts mounted on said
frame, feed rolls on said shafts for feeding said 45
web, and a cutting device removablymounted as
a complete unit upon said frame; said cutting de
vice comprising a bed forming the base thereof,
a female die mounted on said base, vertical'mem
bers on said base, a vertically movable recipro 50
cating male cutting member movable upon said
vertical members, and means upon said rotatable
shafts for directly operating the said male mem
ber of the cutting device in synchronism with said
feed rolls.
23. A machine of the character described for
producing cups from a web, means for feeding
the end of said web to said machine, means for
cutting off a portion from said web and thereby
forming a cup blank upon said machine, a plu 60
rality of rolls for moving said blank through said
machines in the direction of its axis, means for
on said rotatable shafts for operating said cut
partly folding said blank by folding the two
ting device.
folding mechanism, a feeding mechanism for
feeding the end of said blank to said folding
comer portions thereof upon its central portion,
means for applying adhesive upon said partly
folded blank at a point spaced from the forward
end thereof and folding means for folding the
said forward end transversely back upon the same
mechanism, said feeding mechanism comprising
and said adhesive.
_
'
19. .A machine for making cups of the charac
ter described from a web of paper comprising a
70 a bed, a cutting die mounted on said bed and
comprising a vertically movable reciprocating
75
the said cutting device.
member adapted to cut oil’ a portion of said web
near the end thereof and projecting said ‘cut oil’
portion through. said bed, a pair of feed rolls in
said feeding mechanism for intermittently mov
'3.
I
.
"
24. A machine of the“ character described for
producing cups from a web; the said machine
comprising a folding mechanism, means for feed
ing the end- of said web to said folding mecha
nism, a cutting device for cutting off the said end
into a cup blank; the said folding mechanism 75
2,110,770
comprising means for folding the side portion of
said blank in overlapping position on the, central
portion thereof, means for creasing the said part
ly folded blank transversely at points spaced from
the forward portion thereof, means for applying
adhesive, back of said transverse crease and fold
ing means for folding the said forward portion
upon said partly folded, blank and into contact
with said adhesive.
10
'
"
25. In a machine for producing paper contain
27.‘ In a machine for converting a web‘of pa
perinto receptacles of the character described, 10
ers of the character described from a web of pa- ' the combination of means for feeding the said
per, a mechanism for feeding the end of said web
to said machine, means for cutting off the end of
said web and thereby forming a container blank,
15
26. In a machine for making paper containers
of the character described, the method for stack
ing the said containers which consists of deliver
ing them substantially horizontally upon a sur
face and beneath the preceding containers, mov
ing them forwardlyon'said surface to accumu
late them thereon and thereby permit them to
gradually rise to a substantially vertical position.
folding mechanism comprising means for partly
folding the said blank by folding the side portions
thereof in overlapping position upon the central
portion of said blank on lines diverging from the
axis of said central portion, means for forming a
web lengthwise into said machine, a cutter for
, cutting off a section of said web, at the end there'
of, and thereby forming a'receptacle blank there
from, means for holding said section against 15
movement while it is being cut off from said web,
and folding mechanism adapted to receive said
blank after it is cut off from the said web and
fold ‘it into a receptacle;
crease upon the said partly folded blank on a line
LOUIS V. LUCIA.
extending across the overlapping area of said side
portions, and separate means for folding the said
partly folded vblank on said crease.
DISCLAIMER
2,110,770.——L0m's V. Lucia, West Hartford, Conn. MACHINE FOR AND Mn'rnon or'
,M_AKING PAPER CUPS. Patent dated March 8, 1938. Disclaimer ?led Septem
her 5, 1941, by the assignee, United States Era/velope Oompany.
Hereby enters this disclaimerto claim 8 of said patent.
[07750501 Gazette September 30, 1.941.]
20
2,110,770
comprising means for folding the side portion of
said blank in overlapping position on the, central
portion thereof, means for creasing the said part
ly folded blank transversely at points spaced from
the forward portion thereof, means for applying
adhesive, back of said transverse crease and fold
ing means for folding the said forward portion
upon said partly folded, blank and into contact
with said adhesive.
10
'
"
25. In a machine for producing paper contain
27.‘ In a machine for converting a web‘of pa
perinto receptacles of the character described, 10
ers of the character described from a web of pa- ' the combination of means for feeding the said
per, a mechanism for feeding the end of said web
to said machine, means for cutting off the end of
said web and thereby forming a container blank,
15
26. In a machine for making paper containers
of the character described, the method for stack
ing the said containers which consists of deliver
ing them substantially horizontally upon a sur
face and beneath the preceding containers, mov
ing them forwardlyon'said surface to accumu
late them thereon and thereby permit them to
gradually rise to a substantially vertical position.
folding mechanism comprising means for partly
folding the said blank by folding the side portions
thereof in overlapping position upon the central
portion of said blank on lines diverging from the
axis of said central portion, means for forming a
web lengthwise into said machine, a cutter for
, cutting off a section of said web, at the end there'
of, and thereby forming a'receptacle blank there
from, means for holding said section against 15
movement while it is being cut off from said web,
and folding mechanism adapted to receive said
blank after it is cut off from the said web and
fold ‘it into a receptacle;
crease upon the said partly folded blank on a line
LOUIS V. LUCIA.
extending across the overlapping area of said side
portions, and separate means for folding the said
partly folded vblank on said crease.
DISCLAIMER
2,110,770.——L0m's V. Lucia, West Hartford, Conn. MACHINE FOR AND Mn'rnon or'
,M_AKING PAPER CUPS. Patent dated March 8, 1938. Disclaimer ?led Septem
her 5, 1941, by the assignee, United States Era/velope Oompany.
Hereby enters this disclaimerto claim 8 of said patent.
[07750501 Gazette September 30, 1.941.]
20
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