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Патент USA US2120317

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June 14, 1938.
v. A. STROM
2,120,317
PAPER PACKET
Filed Sept. _30, 1935
FIGI.
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2 Sheets-Sheet l 4
FIG. 2.
Z
'15
INVENTOR:
VICTOR
A. STRO
ATTORNEY
June 14, 1938.
v.‘ A. sTRoM
_
2,120,317
PAPER PACKET
7
Filed Sept. 30, 1935
5
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2 Sheets-Sheet 2
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INVENTOR:
VICTOIR A. STROM
2
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‘AT T'ORNEY
Patented June 14, 1938
* _ 2,120,317
VTUNITED STATES
PATENT OFFICE
2,120,317
PAPER PACKET
Victor A. Strom, Alameda, Calif.v .
Application September 30, 1935-, "Serial- No; 42,748’
2 Claims. (01. ass-gent ‘
This invention relates to improvements in paper
In detail the construction illustrated in the
packets and the mode of folding and sealing the drawings
referring ?rst to Fig. 6 comprises a
same.
rectangular blank I of the desired dimensions,
There are certain chemically reactive materials in the present instance composed of waxed tissue
such as powdered hair dyes and washes con
paper. This paper, because of its glazed satin
taining acetic acid and the like, that are deli
like
?nish, is very dif?cult to operate in anauto
quescent or otherwise impractical to pack in glued
matic packet forming, ?lling and crimping ma
envelopes.
chine.
Among the objects of this invention are to fold
The paper is fed from a roll into the machine
10 a single paper blank to form a container packet
and folded ?rst on the line 2-2, below its center 10
and seal the same without adhesives.
Another object is to provide a packet adapted so that the edge 3, lies below the top edge 4, as
in Fig. 7. The folded blank is then severed
to operate in automatic ?lling machines.
the strip and continues between rolls which
Another object is to prevent leakage of the from
compress the fold at 2-2.
15 contents through the mechanical folds and seals
The lateral margins of the folded blank are 15
of the packet.
then simultaneously folded inward‘ on the lines
A further object is to protect the contents from 5--5 and 6--6. This lays the folded margins ‘I
moisture.
and 8 over the folded blank making four thick
Other objects and advantages will appear as the
20
description progresses.
,
In this speci?cation and the accompanying
drawings the invention is disclosed in its pre
ferred form. It is to be understood, however,
that it is not limited to this form because it may
25 be embodied in modi?cations within the purview
of the claims following the description.
In the two sheets of drawings:
Fig. 1 is a front view of a paper packet folded
and sealed in accordance with this invention.
30
Fig. 2 is an enlarged detail in vertical section
of the same taken on the line 11-11, Fig. 1.
Fig. 3 is a greatly‘enlarged detail in cross sec
tion taken on the line IlI—III, Fig. 1.
Fig. 4 is a diagrammatic detail in front eleva
tion of a crimping machine for sealing the folded
packet.
‘
Fig. 5 is a fragmentary detail in vertical sec
tion taken along the line V-—V, Fig. 4, of the same
before the crimping operation. '
40
Fig. 6 is a plane view of a paper blank from
which the packet is formed having the folding
lines indicated thereon by dotted lines and the
crimping lines indicated by dot-dash lines.
Fig. 7 is a plane view of the blank with the
45 ?rst transverse fold therein.
Fig. 8 is a similar view with the ?rst lateral
folds at the sides of the packet.
Fig. 9 is a similar view of the same with the
second lateral folds which complete the con
50 tainer.
Fig. 10 is a reverse or front view of the com
pleted packet.
Fig. 11 is an enlarged vertical section of the
container taken on the line XI—XI, Fig. 10,
showing the ?lling spout in dotted construction.
nesses of paper at these places, as in Fig. 8.
The thrice folded blank then descends into the 20'
third folding mechanism which folds the folded
blank on the lines 9—9 and I0—l0, bringing the
folded edges 5—5 and 6-—6 to the center of the
container, as in Figs. 3 and 9. There are now
six overlaid thicknesses of paper at each side of 25
the container. The side edges l l and I2 of the
original blank are now con?ned within the folds
9-—9 and Ill-l0, respectively.
The container thus formed again passes down
ward between rolls which compress all the folded ‘
lines 5 to II], and deliver the containers seriatim
to a traveling feed belt which carries them to
the ?lling spout l3, see Fig. 11. This spout tapers
downwardly and is a proper width to enter the
container between the edges 3 and 4 and spread
the container open and deposit the contents at
therein. The upstanding margin l4 between the
edges 3 and 4, stops against the spout l3 during
the ?lling operation to insure alinement of the
container with the spout.
40
The spout then rises and the containers ad- '
vance synchronously; then the spout descends
into the succeeding containers seriatim.
The upper portion of each ?lled container is
then automatically folded over the feed plate l5 45
and swung into the horizontal position, see Fig..
5. This plate advances the folded top portion l1
between the lower crimping die l8 and the upper
die IS. The plate then withdraws .and leaves the
container held at I 8—l9.
The lower die l8 then rises forcing the six
overlaid thicknesses of the container into the
concave face of the upper die l9 forming the
center crimp 20 in the edge H of the container.
As the die I8 rises it compresses the spring 2|, 55
2"
2,120,317
permitting the die I9 to recede until the toothed
sectors 22 and 23 engage the edge l1. These
sectors are pivoted at 22' and 23’ on the toggle
arms 24 and 25 respectively pivoted at 24' and
25' on the ?xed frame 26.
The continued rise of the die I8 causes these
toggles to swing outward against the tension of
the springs 21 and 28, respectively, which are
guided on the frame 26, see dotted lines in Fig. 4.
10 These toothed sectors meshing with the toothed
face of the die l8 crimp the top fold of the ?lled
container and complete the sealing of the packet
as in Figs. 1 and 2. These packets then pass
through a printing unit and are ejected from the
15 machine. The crimping faces of the dies l8 and
I9 taper toward the edge I‘! of the packet so
that the greater pressure is exerted at the fold
I‘! to insure permanence of the crimp sealing.
These packets are formed, ?lled, sealed and
20 printed at the rate of three thousand per hour. '
The packet, including contents in some instances,
costing less than a glued envelope which must be
carefully packed and hand fed to the ?lling ma
chine.
Having thus described this invention, what is
claimed and desired to secure by Letters Patent
1s:
1. A paper packet comprising a blank folded
back upon itself and having its lateral margins
twice folded inwardly and right angularly across 10
said ?rst fold; then again folded back upon itself and crimped across all of said marginal folds. _
2. A paper packet comprising a blank folded
back upon itself and having its lateral margins
twice folded inwardly and right angularly across 15
said ?rst fold; then again folded back upon itself
across all said marginal folds and corrugated sub
stantially all the way across said last fold.
VICTOR A. STROM.
20
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