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Патент USA US2110782

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March 8,‘ 1938.
l. H. WEBER
CONTAINER AND M ETHOD OF MAKING SAME
Filed April 12, 1937
2,110,782
'
2 Sheets-Sheet l
_March s, 1938.
' ‘1, H_ WEBER
2,110,782
CONTAINER AND METHOD OF MAKING SAME
Filed April 12,.1957
'
_
2 Sheets-Sheet 2
Patented Mar. 8, 1938.
2,110,782 ‘
PATENT OFFICE
UNITED STATES
2,110,782
CONTAINER AND METHOD OF MAKINGv
SAME
Isadore H. Weber, Philadelphia, Pa., assign'or to
David Weber & 00., Philadelphia, Pa., ‘a cor
poration‘ of Pennsylvania
'
Application April 12, 1937, Serial No. 136,414
(CI. 93-45)
7 Claims.
with live steam which is injected into said ?ller
This invention relates to new and useful im
provements in methods of making containers and
just prior to being corrugated for the purpose of
is a continuation in part of an applicationv ?led I
by me on December 9, 1935, bearing Serial No.
said?bres in the surface thereof and also the
necessity for contact of the ?ller I and facings
or liners 2 and 3 with heating plates, steam
53,666.
The principal object of the invention is to pro
vide a method of making containers of the char
acter set forth wherein a novel connection or
heated corrugating and preheating rolls respec
tively hereinafter described, as Well as the pas
sage of all of thesesheets over the usual drying
joint is provided between opposite abutting
10 edges in a container body which has a ?nished
elements, said sheets I, 2 and 3 and each‘ of them
appearance and is substantially ?ush with the
are subjected to a sudden substantial rise in tem
surfaces of said container. .
perature which causes them, and particularly the
?ller sheet‘ I, to shrink transversely thereof due
to the longitudinal tension and the lack of any
tension or pull transversely or crosswise of said
sheets. The amount or degree of shrinkage in
the width of these sheets depends upon the mois
ture content thereof, the kind and quality of the
Another object of the invention is to provide a
method of the stated character which is rela
tively inexpensive and may be carried out in com
mercial practice with very little additional ma
chinery over that customarily employed.
Other objects of the inventionand the fea
tures and details of the construction thereof are
set forth hereinafter and disclosed in the ac
paper employed, as well as upon the weather con
companying drawings, in which:
Fig. 1 is a fragmentary view in perspective
diagrammatically illustrating certain steps in the
process embodying this invention.
Fig. 2 is an enlarged fragmentary view in sec-'
tion on line 1-2, Fig. 1.
_
'
Fig. 3 is an enlarged view in plan’ of a section
or blank as cut from the run formed in Fig. 1
after said section has been transversely scored.
Fig. 4 is a view in perspective illustrating cer
30
assembly.
The amount of shrinkage occurring in the di
mensions of the filler I axially of its corrugations
and in the liners or facings 2 and 3 is generally
less than one-half an inch but in order to pro
duce container blanks having a ?ller dimension,
axially of its corrugations, which is, exactly
, equal to the speci?ed perimeter of the container
to be formed, said ?ller sheet I must be initially
'
Fig. 6 is a view in section on line 6-—6, Fig. 5.
Fig. ‘7 is a view in plan of a completed contain
er section or blank.
I
ditions on the particular day the sheets are being
used and hence is substantially incapable of ac
curate predetermination or control by compen
sating or allowing therefor so as to enable the
production of a ?nished run having the exact
transverse ?ller width axially of the corrugations
therein that is both desired and required in each
blank or section cut from such run.
tain other steps in the process contemplated by
this invention.
Fig. 5 is a view in plan illustrating the appli
cation of adhesive to the blank or section priorIto
"
softening the fibres therein to enable the corru
gation thereof without cracking or breaking of
fed into the corrugated board making machinery
in widths su?iciently in excess, of the ultimate
dimensions desired in the ?nished board to allow
for an’ indeterminate amount of shrinkage and 40
ultimate trimming‘ of the blanks to the exact ?ller
-
Fig. 8 is a view in, section through a blank
which has been partially assembled, and
Fig. 9 is a view in perspective of one form of
dimension desired.
completed container made in accordance with
'
45 in general contemplates the formation of a con
Referring now particularly to Fig. 1 of the
drawings, reference numerals 4 indicate sup
porting shafts on which are carried supply rolls
tinuous run of double-faced corrugated board,
wherein the intermediate corrugated ?ller sheet
I is of ‘less width than the liners or facing sheets
2 and 3 which are secured to opposite faces of
50 said corrugated ?ller sheet I in such manner that
liner sheets and a filler sheet. In accordance
with the invention, the runs of liner or facing 2
and 3 are of greater width than the ?ller I and 50
this invention. -
f
Referring now to the drawings, the invention
the like I, respectively constituting facings or
they project a substantially equal distance be
each of said sheets is of sufficiently greater width
yond only one side edge Ia thereof as indicated
by reference numerals 2a and 3a in Fig. 2 of the
than-that desired for each such sheets in the com
pleted blank to allow for maximum shrinkage
and trimming thereof as above mentioned. As
shown, the filler I is fed over an idler roll, a heat 65
drawings.
55
5
of paper 2 and 3 and straw, kraft, chestnut or ~
'
Due to the necessity of steaming the ?ller I
I
2
2,110,782
ing plate 5 and between steamers 6 just prior to
passage ‘ofsaid ?ller between the steam heated
corrugating rolls 7 and 8 where it is transversely
corrugated, the amountof live steam injected in
to the ?ller I by the steamers 6 depending upon’
opposed rolls 25 and 26 respectively, one of which
is provided with an adjustable cut-off 2'I operable
the kind of paper or ?ller medium employed as
well as the linear speed of travel of said ?ller
single-wall corrugated board B into sections at
‘predetermined intervals transversely thereof, to
8 and equipped with feeding rolls II] to apply ad
hesive to the ridges of the corrugations thus
After the sections C have been severed from
the run B the same are scored and trimmed along
pressed into contact with the adjacent ridges of
the corrugations formed in the “?ller sheet I as
the latter passes around the previously mentioned
corrugating roll 8 and is secured thereto to form
20 a continuous single-faced corrugated run A.
As previously stated, the liners or facing sheets
-
30
35
40
1
45
to sever said continuous run of double-faced
between said corrugating rolls. A paste box 9
is provided adjacent the corrugating rolls ‘I and
formed in the filler I which face toward the liner
sheet 2. The liner or facing sheet 2 passes around
preheating rolls ii and I2 and a steam heated
15 pressure roll I3 by means of which said sheet is
25,
board 13 which then passes intermediate a series
of rolls 23 and hot plates or like heating elements
24 for drying and then passes between a pair of
form sections C or multiples thereof.
their edges lying parallel to the corrugations of
the ?ller at predetermined spaced intervals as
indicated in Fig. 3 of the drawings by reference
numerals 28 and 29 in accordance with the re
quired depth and ?ap dimensions of the con
tainer to be produced, and the dimension of said
?ller sheet axially of the corrugations therein is
then measured to determine the extent or
amount that the sheet I shrank during formation
of the composite faced run B. This shrinkage
must be secured to opposite facesof the ?ller - will be substantially uniform throughout a given
sheet I so that corresponding edge portions pro
run or lot of sections fabricated from any one
ject beyond only one side edge Ia of said ?ller roll of corrugating material and said sections are
sheet and due to a constant tendency for the sev
then fed successively through a trimming ma
eral supply rolls and runs of paper to weave
chine with the projection free edges lb of their
slightly transversely relative to one another dur
corrugated ?ller sheets ?rmly abutting an ad
ing formation of the board becauseof the ex
justable gauge 30 which has been ?rst set with
treme distance through which the several runs
respect to a cutting tool 3| so that as said sections
are drawn before being secured to one another as
C pass through said machine, the tool 3I will cut
well as‘J variations in the tension and braking the sections C along a predetermined line in
forces applied respectively to the several runs and wardly adjacent the edge lb of said ?ller sheet
supply rolls thereof, it is impossible to accurately as indicated in dotted lines in Fig. 4 and trim said
align the other edges of said facings or liners with
sections down to the exact transverse ?ller width
the opposite edge lb of the corrugated filler sheet desired. This trimming of the sections C will, as
I. Accordingly, and in order'that the edge 21) shown in Fig. 4, remove a sufficient portion of
of the facing sheet 2 will not project beyond the each section so that the edges of the facings 2
edge lb of the ?ller sheet, it is necessary that and 3 exactly register with the edge of the filler
said facing sheet 2 be fed into contact with and sheet I at the cut edge Ic produced by said trim
secured to said ?ller sheet I so that said edge 26 ming operation.
of the former is offset slightly inward from the
The necessity for assembling the faced corru
edge lb of the ?ller sheet a distance su?icient to gated board B so that in the resulting sections C
compensate for maximum relative transverse .the ?ller edge Ib is entirely and always free from
weaving of the sheets as shown in Fig. 2 of the projecting edge portions of the facings or liners
drawings.
2 and 3 will be clear from the above description
As the sheet A emerges from between the rolls forwere said facings or either of them allowed
8 and I3, the same passesover a series of idler to project even the slightest distance beyond said
rolls I4 and I5, and an adhesive box I6 having ?ller edge Ib accurate gauging of the trimming
rollers. I‘I associated therewith to apply adhesive operation effected by the cutter 3I by coopera
to the now exposed ridges of the corrugations of tion of the edge Ib with the gauge 30 would be
. the continuous single-faced run A, said sheet A
wholly impossible. During this trimming of the
subsequently passing between opposed rolls .‘I3
sections C by the cutter 3| as above mentioned,
said sections are also engaged by members 32
and I9, after which the run‘of liner or facing
sheet 3 is fed about a preheating roll 22 and the
previously mentioned roll I9 into parallel contact
with the exposed ridges of the corrugations of
the continuous run of single-faced corrugated.
having segmental slotting elements 33 secured
board A in the manner described in connection
The elements 33 are of such arcuate length and
arranged circumferentially of the members 32 so
with feeding of the liner or facing sheet 2, that
60 is, offset slightly inward from the edge lb
of the filler, so that the edge 3b of said liner or
facing 3 will not at any time project beyond said
edge lb of the ?ller I of said single-faced run A
as also shown in Fig. 2 of the drawings. Thus the
65 side edge lb of the filler will be entirely free from
any projecting portions of either facing or liner
sheet and it is pointed out that the fact that said
edge 11) of the ?ller be and remain at all times
projection free is essential to the success of this
70 invention as will hereinafter appear. The liner
3 is secured to the run A by virtue. of the ad
30
‘
40
‘
peripherally thereof, and operable to slot said .
sections transversely of the corrugation in the
?ller thereof as indicated at 34, 34a, 34b and 340.
that slotting of each section 0 is completed in 60
one revolution of said members 32 which operate
in timed relation with the cutting tool 3|. In
addition the sections C are also engaged by rollers
or like members 35 which function to score said
sections transversely of the corrugations therein
as indicated at 36, 36a, 36b and 360 respectively.
These scoring members 35 are respectively
aligned with a corresponding slotting member 32
and said sets of aligned slotters and scorers 32
and 33 are relatively spaced with respect to one 70
another and said tool 3I so as to slot and score
hesive previously applied to the exposed ridges of said sections in accordance with the dimensional
the corrugations in the ?ller I from the paste _ requirements of: the containers to be formed and
box IE by rolls I‘! and forms a composite double
75 faced run of single-wall transversely corrugated
also in such manner that the seam or joint will
reside in a wall portion of each container and 75
3
2,110,782;
not in or at a corner edge thereof, thus provid
ing maximum. strength and durability to said
containers. The longitudinal scores 28 and 29
previously mentioned de?ne between themselves
the depth of the containers to be formed while
the portions of the sections or blanks bounded by
the said scores 28 and 29 and the scores 36, 36a,
36b and 360 and said‘ scores 36 and 360 and the
10
least said ?ller sheet having a. transverse dimen
sion suf?ciently in excess of the ultimate dimen-'
_sion required to allow for maximum shrinkage
of said sheet, transversely corrugating said ?ller
sheet, securing said facing sheets to‘ opposite
faces of the filler sheet in such transverse rela
tion with respect theretothat said facing sheets
project a substantially equal distance beyond one
‘adjacent edges of the sections constitute the side
and the same side edge of said ?ller and extend‘
and end wall portions of the containers and are
substantially to but not beyond the opposite side 10
edge thereof, cutting sections from the resulting
indicated respectively by reference numerals 31
‘and 38. .The trimming, slotting and scoring ma
chine or apparatus illustrated in Fig. 4 may be
and preferably is also provided with one or more
sets of printing rollers (not shown) so that print
ing of advertising and other matter on the sec
tions C may be accomplished during travel of said
sections through said machine or apparatus.
After the sections C have been trimmed to the
desired ?ller dimension and slotted and scored
20
in the manner set forth above, said sections C
are successively fed through an adhesive apply
run of corrugated board‘at predetermined inter
vals transversely thereof, and feeding said sec
tions to a scoring and slotting mechanism with
the projection free ?ller edges of the sections
cooperatively abutting a gauge predeterminedly
set to control scoring and slotting of said sections
with respect to said projection free edges thereof. '
2. The steps in the method of making con- -
tainers consisting of feeding continuous runs of 20
?ller and facing sheets of predetermined trans
verse dimensions to a corrugated board making
machine, said facing sheets being of greater
ing mechanism with their trimmed edges ic ?rm
ly abutting against a gauge 39 and between rela ' transverse width than said ?ller sheet and at
tively opposed adhesive applying rolls 40 and 4| least said ?ller sheet having a transverse dimen
25
which contact said sections inwardly adjacent sion sufficiently in excess of the ultimate dimen
the edge thereof to deposit strips of adhesive 42 sion required to allow for ‘maximum shrinkage
from paste boxes 43 and 44 along the adjacent of said sheet, transversely \corrugating said ?ller
edge portions of the facing sheets or liners 2 and sheet, securing said facing sheets to opposite
3 at opposite sides of said sectionsas shown in faces of the filler sheet in such transverse rela 30
30
Figs. 5, 6 and '7 of the drawings. The gauge 39 tion with respect thereto that said facing sheets
may be adjusted relative to the opposed paste project a substantially equal distance beyond
or adhesive applying rolls 43 and 44 by means
of hand wheel 45 so that the relative width of
the strip of adhesive 42 applied‘ by said rolls to
35 opposite edgeportions of the sections may be
varied at will.
>
j
The sections or blanks-‘3C are then folded or
doubled along the scores 36 and 36b and the
trimmed edges lc thereof together with the ad
40 hesive coated portions adjacent thereto are in
serted and secured between the projecting por
tions of the liners or facings 2_and 3 at the oppo
site edge of the blank or section with the oppo
site edges la of the corrugated ?ller sheet I in
45 ?rmly abutting relation as shown in Fig. 8 of the
drawings to form the seam or joint in a wall of
the ‘container. In accordance with the usual
practice in the trade, the containers will be
shipped in this substantially ?at, otherwise un- ’
50 assembled, state. to be set up or assembled by the
user or customer in the usual manner into, for
example, the form shown in Fig. 9 of the draw
ings.
The present invention provides a novel method
55
of manufacturing corrugated containers which
are of an extremely rugged, substantially inde
structible nature, embodying certain novel struc
tural features for securing the opposite side edges
of the container blanks in abutting relation to
60 provide a joint or scam in the container which is
substantially ?ush with the ‘adjacent surfaces
thereof, and while certain speci?c embodiments
and structural details of the ‘invention have been
illustrated and described herein, it is not intend
one and the same side edge of said ?ller and ex
tend substantially to but not beyond the oppo
site side edge thereof, cutting sections from the 35
. resulting run of corrugated board at predeter
mined intervals transversely thereof, feeding said
sections to a scoring and slotting mechanism with
the projection free filler edges of the sections
cooperatively abutting a gauge predeterminedly 40
set to control scoring and slotting of said'sec
tions with respect to said projection free edges
thereof, depositing adhesive upon opposite faces
of said sections adjacent the projection free edges
thereof, and thereafter inserting and securing
said projection free edges and adjacent adhesive
coated portions between the projecting portions
of the facing sheets at the opposite edge of the
?llers.
'
'
a
.
'
'
3. The steps in the method of making con .50
tainers consisting of feeding continuous runs of
?ller and facing sheets of predetermined trans
verse dimensions to a. corrugated board making .
machine, said facing sheets. being of greater
transverse width than said ?ller sheet and at
least-said ?ller sheethaving a transverse dimen
sion sufficiently in excess of the ultimate dimen
sion required to allow for maximum shrinkage
of said sheet, transversely corrugating'said ?ller
sheet, securing said facing sheets to opposite 60
:faces of the ?ller sheet in such transverse rela-~
tion with respect thereto that said facing sheets
project a substantially equal distance beyond
one and the same ‘side edge of said filler and.
extend substantially to but not beyond the oppo 65
ed that the same be precisely limited thereto but ‘ site side edge thereof, cutting sections from the
resulting run of corrugated board at predeter
that changes and modi?cations maybe incorpo
rated within the scope of the annexed claims. mined intervals transversely thereof, scoring said
sections parallel to the filler corrugations whilev
I claim:
trimming'the opposite edges of the sections lying 70
1.
The
steps
in
the
method
of
making
con
70
tainers consisting of feeding continuous runs of parallel to said corrugations, and feeding said
?ller and facing sheets of predetermined trans-"' sections to a scoring and slotting mechanism.
verse dimensions to a corrugated board making with the projection free'?ller‘ edges of the sec
machine, said facing sheets being of greater tions cooperatively abutting a gauge predeter
minedly ‘set to control scoring and'slotting of
75 transverse width than said ?ller'sheet and at
4
8,1 10,782
said sections with respect to said projection free
edges thereof.
4. The steps in the method of making con
tainers consisting of feeding continuous runs of
?ller and facing sheets of predetermined trans
verse dimensions to-a corrugated board making
machine, said facing sheets being of greater
transverse width than said ?ller sheet and at
least said ?ller sheet having a transverse di
mension sufficiently in excess'o'f the ultimate di
mension required to allow for maximum shrink
age and subsequent trimming of said sheet, trans
versely corrugating said ?ller sheet, securing said
facing sheets to opposite faces of the ?ller sheet
transverse width than said ?ller sheet and at
least said ?ller sheet having a transverse dimen
,in such transverse relation with respect thereto
that said facing sheets project a substantially
10 sion sufficiently in excess of the ultimate dimen
sion required to allow», for maximum shrinkage
and subsequent‘ trimming of said sheet, trans
of said ?ller and extend substantially to but not
equal distance beyond one and the same side edge
beyond the opposite side edge thereof, cutting
versely corrugating said ?ller sheet, securing said
sections from the resulting run of faced cor
facing sheets to opposite faces of the filler sheet
15 in such transverse relation with respect thereto
that said facing sheets project a substantially
equal distance beyond one and the same side
edge of said ?ller and extend substantially to but
rugated board at predetermined intervals trans
not beyond the opposite side edge thereof, cutting
20 sections from the resulting run of faced corru
gated board at predetermined intervals trans
vers'ely thereof, and trimming said sections to
the exact ?ller dimension desired by cutting the
same along a predetermined line inwardly ad
25 jacent the projection free side edge of said ?ller
verselyvthereof,‘ trimming said sections to the
exact ?ller dimension desired by cutting the
same along a predetermined line inwardly adja
cent the projection free side edge of said filler
opposite that beyond which said facing sheets
project, and at the same time scoring and slotting
said sections parallel to said projection free ?ller
edge thereof at predetermined spaced intervals
with respect to the trimming cut.
7. The steps in the method of making contain
ers consisting of feeding continuous runs of ?ller
opposite that beyond which said facing sheets
and facing sheets of predetermined transverse
project.
dimensions to a corrugated board making ma
.
5. The steps in the method of making con
tainers consisting of feeding continuous runs of
30 ?ller and facing sheets of predetermined trans
verse dimensions to a corrugated board making
machine, said facing sheets being of greater
transverse Width than said ?ller sheet and at
least said ?ller sheet having a transverse dimen
sion su?iciently in excess of the ultimate dimen
sion required to allow for maximum shrinkage
and subsequent trimming of said sheet, trans
versely corrugating said ?ller. sheet, securing
said facing sheets to opposite faces of the ?ller
4 O sheet in such tranverse relation with respect
thereto that said facing sheets project a substan
tially equal distance beyond one and the same
side edge of said ?ller and extend substantially to
but not beyond the opposite side edge thereof,
cutting sections from the resulting run of faced
corrugated board at predetermined intervals
, transversely thereof, and trimming said sections
to the exact ?ller dimension desired by cutting
the same along a predetermined line inwardly
adjacent the projection free side edge of said
?ller opposite that beyond which said facing
sheets project while said projection free ?ller
edge cooperates with a gauge to predeterminedly
control the trimming of the sections. '
6. The steps in the method of making con
tainers consisting of feeding continuous runs of
filler and facing sheets of predetermined trans
verse dimensions to a corrugated board making
machine, said facing sheets being of greater
15
chine, said facing sheets being of greater'trans
verse width than said ?ller sheet and at least
said ?ller sheet having a transverse dimension 30
su?iciently in excess of the ultimate dimension re
quired to allow for maximum shrinkage and sub!
sequent trimming of said sheet, transversely cor
rugating said ?ller sheet, securing said facing
sheets to opposite faces of the ?ller sheet in such 35
transverse relation with respect thereto that
said facing sheets project a substantially equal
distance beyond one and the same side edge of
said ?ller and extend substantially to but not
beyond the opposite side edge thereof, cutting 40
sections from the resulting run of faced cor
rugated board at predetermined intervals trans
versely thereof, trimming said sections to the ex
act ?ller dimension desired by cutting the same
along a predetermined line inwardly ‘adjacent 45
the projection free side edge of said ?ller opposite
that beyond which said facing sheets project,
and at the same time scoring and slotting said
sections parallel to said projection free ?ller
edge thereof at predetermined spaced intervals 50
with respect to the trimming cut, depositing ad
hesive upon opposite faces of said sections adja
cent the trimmed edge thereof, and thereafter
inserting and ‘securing said trimmed edge and
adjacent ‘adhesive coated portions between the 55
projecting portions of the facing at the opposite
edge of the ?ller so that said ?ller edges are
in closely abutting relation.
'
ISADORE' H. WEBER.
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