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Патент USA US2132041

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Oct. 4, 1938.
cv NELSON
2,132,041
CAN SEALER
Filed July 8, 1955
2 Sheets-Sheet l
52.
INVENTOH'
CARL. NELS N
5Y6kMl M
M
ATTO NEY5
Oct.v 4, 1938.
c. NELSON
2,132,041
CAN SEALER
Filed July 8, 1935
'2 Sheets-Sheet 2
24
INVENTOR
CAR L N E LSON
BY WKIRM
"ll-'4
ATTORNEYé
Patented Oct. 4, 1938
2,132,041
UNITED STATES PATENT OFFICE
2,132,041
CAN SEALER.
Carl Nelson, Eau Claire, Wia, asslgnor to Na
tional Pressure Cooker Company, Eau Claire,
Wia, a corporation of Wisconsin
Application July 8, 1935, Serial No. 30,345
3 Claim. (Cl. 113-423)
This invention relates to new and useful im
for relatively adjustinglthe seaming rollers with
provements in can sealers of the portable type
5
-
Figure 4 is a view showing a modi?ed construc
tively adjusting the seaming rollers with respect
tion wherein the eccentrics are made indepen
dently of the posts and are adjustably supported
to the can.
‘
-
_
I,
An object of the present invention is to pro
vide a can sealer comprising a plurality of seam
mg rollers supported upon pivoted arms having
means for actuating them whereby the seaming
10 rollers are alternately moved into and out of
seaming engagement with the can closure, and
eccentric means being provided in connection
with said arms whereby they may be relatively
adjusted with respect to the-can to accurately
15 position them with respect thereto.
'
Other objects of the invention reside in the
novel construction or the frame of the can sealer,
whereby suitable eccentrics are provided in the
upper portion thereof for relatively adjusting
20 the seaming rollers with respect to the can; in
the construction of the machine frame which
comprises a base having upright posts secured
thereto and to the upper ends ofgwhich is secured
a cross head in which the driving mechanism of
25 the can sealer is supported, and the upper por
tions of said posts being provided with eccentrics,
whereby the arms which support the usual seam
ing rollers, may be relatively adjusted to accu
rately position the seaming rollers with respect to
30 the can closure; and in the provision of a can
‘thereon.
_
In the selected embodiment of the invention
here shown, there is illustrated in Figure l, a
can sealer, the general construction of which is
similar to the one disclosed in my pending appli 10
cation, Serial Number 30,344, ?led July 8, 1935.
The can sealer as here shown, comprises a base
2 provided with suitable clamping elements, ‘gen
erally indicated by the numeral 3, whereby the
sealer may be conveniently clamped to a suitable
support such, for example, as a table top. A
lower chuck plate d is rotatably mounted in the
base and is adapted for vertical movement by a
cam device 5 having an operating handle 6 which,
when rotated in one direction, will cause the 20
chuck plate ii to be elevated.
Upright posts 1 are shown provided with re
duced end portions 8,1 received in apertures in the
base 2 and secured therein by suitable nuts 9, as
best illustrated in Figure 1. The upper ends of
the posts 7 have reduced portions ii adapted to
be received in suitable apertures provided in a
cross head i2, and which is secured to the termi
nals it by suitable nuts it.
An upper chuck plate it, having a knurled
sealer which is extremely simple and inexpensive
in construction,‘ whereby it maybe manufac
periphery 85 adapted for driving engagement
tured at small cost..
bevel gear 85, which, in turn, is secured to a suit
able shaft ll, rotatably mounted in bearings pro
vided in the cross head i2. A bevel pinion i8 is
rotatably mounted upon a” stud l9 and has an
‘
Other objects of the invention will appear
35 'from the following description and accompany
ing drawings and will be pointed out in the an
nexed claims.
'
,
In the accompanying drawings, there has been
disclosed a structure designed to carry out ‘the
40 various objects of the invention, but it is to be
understood that the invention is not confined to
the exact features shown as various changes may
be made within the scope of the claims which
follow.
In the drawings:
Figure 1 is a rear view of a can sealer showing
with a can closure, is detachably secured to a
operating crank ‘it secured thereto, whereby it
may be conveniently rotated thereby to drive the
chuck plate it, it being understood that the
pinion is constantly meshes with Qie bevel
gear it.
Each post ‘i is provided adjacent its upper end
with a reduced portion 22, upon which are piv
'otally mounted suitable arms 23, each carrying
a seaming roller 26. The reduced portions 22
of the upright posts '5 are eccentrically disposed
the invention embodied in the construction
with respect to the axes of the posts ‘I, as best
thereof;
shown in Figure 3, whereby they function as
eccentrics to relatively adjust the arms with re
spect to the can, and whereby the seaming roll
ers may be accurately positioned with respect to
'
Figure 2 is a sectional plan. view on the line
50
respect to the can; and
and more particularly to a novel means for rela
2-2 of Figure '1,‘ showing the arrangement of
the arms which support the seaming rollers and
the driving means therefor;
Figure 3 is a detail sectional view on the line
the can closure.
Each arm 23 has a iorked end portion 25
M of Figure 1, showing the eccentric means
adapted to receive a connecting bar 26, which is
55 provided at the upper ends or the upright- posts
coupled thereto by suitable coupling pins 21.
2
2, 189,041
A plurality of apertures 28, 29, and 3| are pro
vided in the forked end portions 23 of the arms
23, adapted to be alined with suitable apertures
provided in the connecting bar 26, and whereby
the spacing between theseaming rollers 24 may
be varied to adapt the sealer for di?erent sizes
of cans. The apertures 28, 23, and 3|, in the
forked end portions 25 of the arms provide
means whereby the can sealer may be quickly ad
10 justed to di?erent sizes of cans, by simply with
~ drawing the coupling pins 21 and shifting them
into other apertures corresponding to the size
of can to be sealed.
.
provided with oppositely disposed ?at faces to
provide means for rotating it, or the periphery
of the ?ange 31 may be suitably knurled so that
when the bushing is released by loosening the
nut It, the bushing may be conveniently ro
tated with the ?ngers thereby to accurately ad
Si
just the seaming roller with respect to the can.
In the form shown in Figure 4, the upright posts
‘I are permanently secured to the base I.
I claim as my invention:
>
10
1. In a can sealer, a base having upright pos
secured thereto, a cross head secured to the
upper ends of the posts, chuck plates for sup
Reciprocal movement is imparted to the con
necting bar 26 by a cam 20 operatively con
nected to the shaft l1, and adapted to engage a
forked member 30 secured to the connecting
bar, as illustrated in Figure 2. This mechanism
is shown and described in detail in my copending
porting the can, means for driving one of said
chuck plates to rotate the can, a plurality of
application, hereinbefore mentioned, and it is
therefore thought unnecessary to herein describe
ferent diameters, eccentrics at the upper ends of 20
said posts for supporting said arms, and means
seaming rollers, arms for supporting said rollers,
means operatively connecting together said arms‘
whereby the spacing between the seaming rollers
may be varied in accordance with cans of dif
seaming rollers must be accurately positioned
whereby said posts may be relatively operated
to rotate the eccentrics and thereby relatively
adjust the arms and seaming rollers with respect
withrespect to the marginal ?ange of the can
to the can.
closure, so that when the seaming rollers are
swung inwardly the maximum of their move
disposed apertures therein, a pair of upright
the same in detail.
In order to hermetically seal the can, the
ment, they will press the rolled edge of the
closure and the ?ange of the can into sealing
30 engagement with the can body to thereby her
metically seal the can.
The eccentrics 22 provided at the upper por
tions of the posts ‘I provide means whereby the
seaming rollers may be quickly and accurately
35 adjusted with respect to the can by simply
loosening the nuts 9 and I3 of each rod and in
serting a small pin or instrument into an aperture
32 provided in each post and relatively rotating
said posts until the seaming rollers are accu
40 rately positioned with respect to the can.
By the employment of the simple adjusting
mechanism, herein disclosed, the can sealer is
greatly simpli?ed, as will readily be noted by
reference to the drawings, particularly Figure 2,
45 wherein the simplicity of the mechanism is
clearly illustrated.
2. In a can sealer, a base having vertically
posts fitting in said apertures, means for se
curing the posts in said apertures, said posts
having their upper ends formed with reduced
extensions, 9. cross head having apertures for
receiving said extensions, means for securing the
cross head to the posts, an eccentric formed on
each post below the cross head, an arm pivotally
mounted on each eccentric and each carrying a
seaming roller, chuck plates for supporting a
can to be sealed, means for driving one of said
chuck plates; thereby to rotate the can, means
for actuating the arms to cause the seaming
rollers to be alternately moved into and out of
seaming engagement with the closure and can,
and means whereby said posts may be relatively
rotated, thereby to actuate the eccentrics to
relatively adjust the arms with respect to the
can.
3. In a can sealer, a base having upright posts
In Figure 4, I have shown a construction in
mounted thereon, eccentrics integrally formed
which the upper end of each post ‘I is provided
on said posts, a cross head secured to the upper
with a reduced extension 33, upon which are
mounted eccentric bushings 34, the lower ends of
50 which are seated against the shoulders 35 of
the posts ‘I. The upper ends of the bushings
are adapted to be engaged by the lower faces of
the hubs 36 of the_cross head I2, and whereby
45
ends of the posts, chuck plates between which
the can is supported, means for driving one of 50
said chuck plates'to rotate the can, a plurality
of seaming rollers, an arm rotatabiy mounted on
each eccentric and each carrying a seaming
roller, a member adjustably connecting together
the eccentric bushings may be secured in ad- I said arms whereby the spacing between the
55 justed position by manipulation of the nuts l3, seaming rollers may be varied in accordance 55
provided in the upper ends of the posts ‘I. In‘ 'with cans of different diameters, and means
the 7. form shown in Figure 4, the hubs of the: whereby said posts may be relatively rotated in
arms 23 are bored out to receive the bushing 34L said base, thereby to rotate the eccentrics to
and are rotatable thereon in substantially the
same manner shown in Figure 2.
accurately position the seaming rollers with re
spect to the edge of the can closure and top.
Each bushing 34 is preferably ?anged at its
lower end, as shown at 31, which ?ange may be
CARL NELSON.
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