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Патент USA US2106020

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A. H. Saa-mamma
293956,02@
MACHINE FOR SECURING HEADS IN CYLINDRICAL CONTAINERS
File@ April l1, 1935 '
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3 Sheets-Sheet 1
MACHINE'. FOR SECURING HEADS IN CYLINDRICAL CONTAINERS
Filed April l1, '1955
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3 Sheets-Sheet 2
MACHINE FOR SECURING HEADS IN CYLINDRICAL CONTAINERS
Filed April 11, 1935
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2,106,020
Patented Jan. 18, 1938
UNITED STATES PATENT OFFICE
2,106,020
MACHINE FOR SECURING HEADS IN CYLIN
D'RICAL CONTAINERS
Albert H. Schmidtke, St. Joseph, Mich., assignor,
by mesne assignments, to Seymour & Peck
Company, Chicago, Ill., a corporation of Dela
Application April 11, 1935, Serial No. 15,784
12 Claims. (Cl. 113-16)
Cylindrical containers have been made up of
a side wall of plywood having a metal strip sur
rounding each end adapted to surround a cir
cular wooden head. An object of this invention
5 is to provide a ready means for securing this
head in the container.
This and other objects, as will hereinafter ap
pear, are accomplished by this invention which
In axial alignment with the shell I4 and sup
port 22 (Fig. 1) is a plunger 24 slidably mounted
in the block 20. This plunger (Fig. 12) has a
foot 25 secured at its lower end as by means of
a screw 26. Surrounding the foot 25 and slid
ably mounted on the plunger 24 is a cup-shaped
member 21. This member has a series of lon
gitudinal internal grooves 28 which are wider
is fully described in the following speciñcation at the top than at the bottom so as to provide
a series of splines 29 which are wider at the
10 and shown in the accompanying drawings, in
outside than at the inside'. The foot 25 has a
which:
Figure 1 is a side elevation of a hand-operated series of radiating fins 30, one of which lies
in each of the grooves.
machine embodying the invention;
The interior of the cup-shaped member 21 is
Fig. 2 is a longitudinal sectional View of a
bored or otherwise formed to provide a cylinder
15 shell with the first head in place but not secured
3l which, however, is interrupted by the grooves
therein;
Fig. 3 is the same turned end for end after 28 and terminates at its upper end in a series of.
inclined faces 32, the purpose of which will later
the first head has been secured therein;
be described. The lower inner edge of the mem
Fig. 4 is the same filled with both heads se
ber 21 is internally chamfered at 33 to assist in
cured
therein;
2O
Fig. 5 is an enlarged view on the line 5-5 of placing this member over the top of the shell.
Fig. 1;
A hand-operated lever 34 is pivotally mounted
„
Fig. 6 is an enlarged top plan view of Fig. 1;
Fig. '1 is an enlarged partial sectional view on
y the line 1-1 of Fig. 1 showing a support for
NJ Cri the shell when inserting the ñrst head;
Fig. 8 is a similar view showing a .support
for the shell while inserting the second head;
Figs. 9, 10, and 11 are partial side elevations
of the mechanism shown in Fig. 1 showing
3 O the crimping mechanism in three positions;
Fig. 12 is a partial enlarged vertical section
on the line I2 of Fig. 10;
Fig. 13 is a similar section on the line I3 of
35
Fig. 11; and
Fig. 14 is a perspective View of a modified form
of support for the shell.
Containers in the stages shown in Figs. 2, 3,
and 4 each consists of a cylindrical shell I4, pref
erably formed from a rectangular panel of ply
4 O Wood, to the ends of which are fastened strip
like bands I5 of metal by means of staples or
the like I6. A circular head I1 ñtting snugly
within the band I5 is then inserted at each end
„ of the shell, and the present invention relates
to apparatus for securing these heads in place.
The embodiment illustrated comprises a base
I8 carrying a standard I9 to which a block 20
is adjustably secured by means of set screws or
the like 2|. In inserting the ñrst head a sup
port 22, shown in detail in Fig. '1, is secured to
the base as by means of a screw 23.
This sup
port is of such a size as to ñt rather snugly with
in the band I5 so that the end thrust of the shell
I4 while the first head is being secured will be
55 taken by the support 22.
10
at 35 on the block 20 and is operatively connected
through a pin 36 and link 31 with a pin 38 on
the plunger 24, this plunger being counterbal
anced in all positions as by means of a spring
39 secured to an arm 40 on the block 20. The
pin 38 is operative in a slot 31a in the link 31.
The lever 34 also carries a pin 4I which oper
ates in a slot ¿I2a in a link 42, the opposite end
of this link connecting through a pin 43 with ‘
an ear 21P- on the cup-shaped member 21. It will
be understood that there are two of the links
31 and 42, one of each on each side of the
lever 34.
35
With the mechanism in the upper position
shown in Fig. 9 a shell having the lower end
still open is inserted over the support 22 and a
circular head I1 is inserted. A wood member
of the same length as the plywood shell and sub 40
stantially filling the same is placed therein dur
ing the ñrst crimping operation to insure against
splitting the shell. The operating lever is then
pulled down so as to force the cup-shaped mem
ber 21 over the top of the shell, thereby causing 45
the inclined faces 32 to engage the top edge of
the metal band I5 and to cause it to be crimped
inwardly to the position I5a of Fig. 12. Initial
ly, the cup» alone will have engaged with the
work, and later, as the band edge is forced in 50
wardly, 'the foot also will engage therewith.
When the cup is at its lowermost position, as
shown in Fig. 10, the pin 38 may have traveled
some distance down in the slots 31a of the pull
links, as shown in Fig. 10.
‘
As the lever 34 continues its downward move
2
2,106,020
ment, as shown in Fig. 11, the link 31 will cause the
plunger 24 to descend, as shown in Figs. 11 and 13,
until the foot 25 is pressed firmly against the
crimped upper portion of the metal strip-like
band which now assumes the position l5b of Fig.
13 and the crimping operation is completed, and
the head |1 is ñrmly locked in the shell. If it is
now desired to similarly lock a head in the op
posite end of this shell the support 22 is re
10 moved and a new support |22 (Fig. 8) is in
serted in its place, so that the top yof the shell will
now stand in the same relation to the crimping
do any work; and that the cup which is fitted
tightly around the work is moved away therefrom
at the conclusion of the down stroke of the op
erating lever, so as to facilitate ready disengage
ment of the cup from the work on the upstroke
of the lever.
When the shell is filled with a light material
the support |22 may be used, whereas when the
shell is ñlled with a heavy material, like steel
rods, too much effort is expended lifting the shells 10
on and olf the support. Consequently, a flat base
I 8'r1 (Fig. 14) is provided with a guide I8b which is
adjustably secured thereon by bolts I8c so as to
member that it did in the operation which has
`just been described.
- position the cylindrical shell in proper alignment.
The operating mechanism is both simple and In order to use this base, adjustment of the block
effectve. The arrangement of links provides, in 20 is required because of the difference in height
from the support 22.
effect, a duplex toggle mechanism which is char
I claim:
acterized by the following action: When the op
erating lever starts down (see Fig. 9), a thrust ,
1. Means for crimping a metal band of sub
20 is exerted through the links 42 to move the cup
stantially uniform height about a circular head, 20
downwardly.
The sustaining spring holds the
foot up within the cup so that the foot follows
along with the cup as it descends toward the
work. Starting from a point where the angle is
25 wide, the thrust links move in toward the line
between the pivotal centers 35 and 43, so as to op
erate through a leverage which increases in power
as the resistance increases. At -the point of maxi
mum leverage (see Fig. 10), both the cup and foot
30 are exerting'pressures against the work, but with-j
out any aid from the pull links 31. The movement
up to this point, during which the operating lever
has advanced perhaps 45°, constitutes the ñrst
. stage of the operation.
When the lever point 4| moves past the line
between the pivotal centers 35 and 43 the second
stage is reached. The links 31 now exert a down
pull to advance the foot against the work while
the pressure exerted through the thrust links upon
the cup is gradually released. The parts during
this stage are in the positions shown in Figs. 11
and 13. Continuing, the pull links move in to
operate through leverages of increasing power
until ñnally the needed pressure has been applied
to the work. During the lastpart of the move
ment the thrust links .have allowed the lever
point 4| to swing upwardly until near the end,
without resistance due to the slip connection af
forded by their elongated slots. Near the end of
this movement a pull is exerted upon the thrust
links whereby the cup is lifted slightly, as indi
cated in Fig. 13, thereby tending to free the cup
for subsequent disengagement from the work. On
the return stroke of the operating lever, the spring
exerts a counterforce sunîcient to balance partial
ly or completely the weight of the par-ts which re
quire lifting to their initial positions.
_
said means comprising a support for a shell hav
ing such a band to be crimped, a standard as
sociated with the support, a lever pivotally car
ried by the standard, a member operably con
nected to the lever and adapted to surround the 26
outer edge of the metal band and having a series
of surfaces separated by V-shaped grooves and
inclined inwardly at substantially 45° and adapted
to engage the outer edge of the metal bandv at in
tervals therealong so asto crimp the metal band 30
and bend it inwardly, and a second member hav
ing outwardly extending V-shaped iins operable
in the grooves and said member being operably
connected to the lever for pressing the crimped
and inwardly bent edge of the metal band down 35
against the head.
2. Means for crimping a metal band of sub
stantially uniform height about a circular head,
said means comprising a support for a shell hav
ing such a band to be crimped, means for crimp- .
ing the outer edge of the metal band and bending
it inwardly and downwardly into a position sub
stantially 45° from the head, other means oper
able thereafter for pressing this crimped edge
down substantially ñat and into contact with the
head, and means for retracting the first men
tioned means while the second mentioned means
is pressing the crimped edge against the head.
3. In means for crimping a metal band about
a circular head, a support for a shell having suchA
a band to be crimped, means for crimping the
outer edge of the metal band and bending it
`inwardly and downwardly into a position sub~
stantially 45° from the head, and means for
pressing this crimped edge down substantially 55
flat and into contact with the head, the ñrst
mentioned means being cup-shaped and adapted
to slide over the -metal band and having inter
nal longitudinal ribs which engage the metal
band at intervals, and the second mentioned 60
means being slidable within the first mentioned
vIt will be observed that the action just de
scribed is peculiar vin Vthat there are two stages of
60 movement each characterized .by the working
links exerting at the start a minimum leverage
which increases as the movement proceeds; that , member and having' ribs interdigitating with the
there is little or no resistance -on the part of the ribs of the ñrst mentioned means and movable
non-working links >and associated parts while the relative thereto to bear upon the angularly bent
65 other-set of links are doing their work; that in and crimped portion of said band.
65
‘ these sequential vstages of movement there is
4. In means for crimping a metal -band about
utilized a single operating lever whose movement~ a circular head, a support for a shell having such
range is conveniently small-_perhaps only 90°; a band to be crimped, means for crimping the
that the rate of advance of the cup in this ñrst outer edge of the metal band inwardly and
stage is perhapstwice as fast as that of the foot downwardly into a position substantially 45° 70
in the second stage, due to the diiïerence in the from the head, and `means for pressing this
radii of the points 4| and 36; that the thrust links crimped edge down substantially flat and into
are‘active only in the ñrst stage, and at the con
contact with the head, the ñrst mentioned means
clusion of the second stageyof movement, whereas being cup-shaped and adapted to rslide over the
75 it is only in the >second stage that the `pull links metal band and having internal longitudinal V
75
2,106,020
shaped ribs, and the second mentioned means
being slidable within the first mentioned means
and having V-shaped grooves within which said
ribs are slidable, the lower part of the ribs in
the cup-shaped means being cut away to admit
the metal band in the cup-shaped means.
5. In means for crimping a metal band about
a circular head, a support for a shell having such
a band to be crimped, means for crimping the
10 outer edge of the metal band and bending it
inwardly and downwardly into a position sub
stantially 45° from the head, and means for
pressing this crimped edge down substantially
flat and into contact with the head, the ñrst
15 mentioned means being cup-shaped and adapted
to slide over the metal band and having V
shaped internal longitudinal ribs, and the sec
ond mentioned means being slidable within the
first mentioned means and having V-shaped
20 grooves within which said ribs are slidable, the
lower part of the ribs in the cup-shaped means
being cut away to admit the metal band in the
cup-shaped means, and said ribs terminating at
the cut away portion in inwardly and upwardly
25
inclined surfaces.
'
6. In means for crimping a metal band about
a circular head, a base having a support for a
cylindrical shell having such a band to be
crimped, an upright carried by the base, a
30 plunger slidably mounted in the upright on the
axis of the shell, a foot on the plunger, a cup
shaped member slidable on the plunger having a
series of spaced inclined surfaces, a lever ful
crumed on the upright, a linkage operably con
35 necting the lever to the cup-shaped member, a
linkage operably connecting the lever to the
plunger, the first linkage operating in ladvance
of the second linkage whereby movement of the
lever will cause the cup-shaped member to crimp
40 the metal band and bend it inwardly and fur
ther movement of the lever will cause the foot
to press the crimped edge against the head, and
means for counterbalancing the lever and parts
movable thereby in various adjusted positions.
45
7. In means for crimping a metal band about
a circular head, a support for a shell having such
a band to be crimped, a standard associated
with the support, a lever pivotally carried by
the standard, a first member operably connected
50 to the lever for crimping and bending the metal
band inwardly, and a second member operably
connected to the lever for pressing the inwardly
crimped edges of the metal band down against
the head, the first member being operably con
55 nected to the lever through a pair of thrust links
while the second member is operably connected
to the lever through a pair of pull links.
8. In means for crimping a metal band about
a circular head, a support for a shell having such
60 a band to be crimped, a standard associated
with the support, a lever pivotally carried by
the standard, a first member operably connected
to the lever for crimping the metal band in
wardly, and a second member operably connected
65 to the lever for pressing the inwardly crimped
edges of the metal band down against the head,
the first member being operably connected to the
lever through a pair of thrust links while the
second member is operably connected to the lever
3
through a pair of pull links, the second member
continuing the crimping operation after the first
member has completed its crimping operation
and is being withdrawn.
9. In means for crimping a metal band about
a circular head, a support for a shell having
such a band to be crimped, a standard associated
with the support, a lever pivotally carried by the
standard, a ñrst member operably connected to
the lever for crimping the metal band inwardly, 10
and a second member operably connected to the
lever for pressing the inwardly crimped edges
of the metal band down against the head, the
first member being operably connected to the
lever through a pair of thrust links' while the
second member is operably connected to the lever
through a pair of pull links, the second member
continuing the crimping operation after the first
member has completed its crimping operation and
is being withdrawn, the second member lying 20
within the first.
10. In means for crimping a metal band about
a circular head, a support for a shell having such
a band to be crimped, a standard associated with
the support, a lever pivotally carried by the
standard, a member operably connected to the
lever and adapted to surround the outer edge of
the metal band and having a series of distinct,
circumferentially spaced separated surfaces eX
tending inwardly and adapted to engage the outer
edge of the metal band at intervals therealong
so as to crimp the metal band and bend it in
wardly, and a second member operably connected
to the lever for pressing the inwardly crimped
edges of the metal band down against the head.
11, In means for crimping a metal band about
a circular head, a support for a shell having such
a band to be crimped, a standard associated with
the support, a lever pivotally carried by the
standard, a member operably connected to the 40
lever and adapted to surround the outer edge of
the metal band and having a series of distinct,
circumferentially spaced and beveled crimping
elements adapted to engage the outer edge of the
metal band at intervals therealong so as to crimp 45
metal band and bend it inwardly, and a second
member having spaced fins extending between
the crimping elements, said second member be
ing operably connected to the lever for pressing
the inwardly bent and crimped edge of the metal
band down against the head.
12. In means for crimping a metal band about
a circular head, a support for a shell having such
a band to be crimped, a standard associated with
the support, a lever pivotally carried by the
standard, a member operably connected to the
lever and adapted to surround the outer edge of
the metal band and having a circular series of
spaced tooth-like crimping elements adapted to
engage the outer edge of the metal band at in (SO
tervals therealong so as to crimp the metal band
and bend it inwardly, and a second member hav
ing spaced ñns extending between the crimping
elements, said second member being operably
connected to the lever for pressing the .inwardly
crimped edges of the metal band down against
the head.
ALBERT H. SCHMIDTKE.
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