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Патент USA US2410263

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Oct. 29, 1946;
4 Sheets-Sheet 1
' Filed Oct. 12, 1945
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Filed Oct. 12, 1945
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Julius ?rznzz‘rggzr
Patented Oct. 29,‘ 1946
Julius Brenzinger, Fair?eld, Conn, assignor to
The Max Ams Machine Company, Bridgeport,
Conn, a corporation of New‘ York
Application October 12, 1945, Serial No. 621,930
1 Claim.
(Cl. 113-23)
The present invention relates to seaming
pedestal to bring the work-piece into and out of
mechanisms, and has more particularly refer
engagement with chuck 25.
29 indicates a horizontally extending support
ing-plate on the framework, on the underside
of which plate is located a. bodily shiftable
seamer-head 39, which latter is provided with a
forked extension 31 and two elongated slots 32.
ence to that type of seaming-mechanism dis
closed in U. S. Letters Patents Nos. 1,167,346,
1,167,347 and 1,351,831 in which a seamer-head
is mounted to have a bodily shifting movement to
sequentially carry a plurality of seaming-rollers
on the seamer-head into and out of seaming po
sition with respect to the work-piece to be acted
Seamer-head 34] is kept in frictional engagement
with said plate 29 by means of screws 33, car
upon. That is to say: instead, as in usually the 10 ried by the seamer-head, which extend upward
ly through elongated slots 32. Washers 34 on the
case, of moving each seaming-roller, one after
upper side of plate 29 afford a support for springs
the other, with respect to the seamer-head and
35 surrounding said screws 33 and are kept under
the work-piece, the seamer-hand is bodily moved
appropriate tension by means of wing nuts 36.
to effect the in-an'cl-out movement of said seam
15 Forked extension 3| is in engagement with a
ing-rollers with respect to the work-piece.
pivot 31 on plate 29. Mounted On ?xed centers
The main object and feature of the invention
of rotation of said scanner-head are a plurality
is to provide a seaming—mechanism especially
of seaming-rollers, here two, 38 indicating the
adapated for use in homes and in municipal or
?rst-operation seaming-roller, and 39 indicating
neighborhood canning-centers; that is to say: a
simple mechanism not requiring a skillful opera 20 the second-operation seaming-roller. Mounted
loosely on rotatable shaft 20 is a sleeve 49, at the
tor and one in which the seaming-cycle can be
lower end of which is ?xed an eccentric bushing
interrupted for the purpose of adjustment or
4| that engages an opening d2 in seamer-head 30.
otherwise Without destroying the sequence of
It will be seen that a turning movement of sleeve
operation of the parts.
In the accompanying drawings the invention 25 40, and thereby of eccentric bushing 4|, will shift
seamer-head 30 bodily in frictional engagement
with the underside of plate 29, and that said
in which:
seamer-head will both turn and slide on pivot 31
Fig. 1 is a front view in elevation of a device _
by reason of the engagement of forked extension
embodying the invention;
3! with said pivot 37, to thereby bring seaming
Fig. 2 is a vertical sectional View of the parts
rollers 38 and 39 sequentially into and out of en
of the upper portion shown in Fig. 1, the section
gagement with the work-piece, that is: to seam a
being taken substantially on the plane of irregu
cover to a can.
lar line 2-2 of Fig. 5;
The principle of the above-described movement
Fig. 3 is a horizontal sectional view substan
tially on the plane of line 3—3 of Fig. 2; ' 35 is disclosed in the aforementioned patents, and
the instant invention has more particularly to
Fig. ‘i is a horizontal sectional view substantial
do with novel means for turning and controlling
1y like Fig. 3, but on a slightly larger scale and
sleeve 4E! and eccentric bushing M. The means,
showing the parts in a different position;
be disclosed, turn sleeve 40 and eccentric ‘bush
Fig. 5 is a horizontal sectional view substantial
ing Ill intermittently, during a cycle of opera
ly on the plane of line 5—5 of Fig. 2; and
" $10 tions, and not, as heretofore, continuously dur
Fig. 6 is a vertical sectional view substantially.
ing such cycle.
on the plane of line 5—6 of Fig. 3.
As above mentioned, shaft 20 is rotatable and
20 is a rotatable shaft suitably mounted in
has affixed thereto a bevel-gear 22. Shaft 20 is,
framework 2| of the device. This shaft can con 45 in this instance, rotated by gear 22, and this
veniently be operated by means of a bevel-gear
gear can conveniently be used as a carrying
22, mounted fast on said shaft at its upper end,
member for certain instrumentalities as will pres
which bevel-gear 22 is driven from a bevel-pinion
ently appear, and said gear 22 will hereinafter
be referred to as a carrying-member.
23 that can be operated by a small motor or by
Mounted to turn with loose sleeve 48, are two
handle 24. Said shaft 20 is provided at its lower
is disclosed in a concrete and now preferred form,
end with means to engage a work-piece, such
means here being a chuck 25. 26 indicates a ro~
ratchets, one a feeding—ratchet 43 and the other
a stop-ratchet 44. As it is desired, here, to im
tatable pedestal to support a work-piece or can
part eight steps to sleeve 4% and eccentric bush
ing 41 to effect one revolution thereof, feeding
ratchet 43 is provided with eight teeth as shown.
and cover indicated at 21, and said pedestal 26
is provided with means 28 to raise and lower the
Similarly, as it is desired to index sleeve 40 at
the end of each of its intermittent steps, stop
ratchet 44 is likewise provided with eight teeth
as shown. And as it is desired to terminate the
cycle of movements of the mechanism at the end
of one complete revolution of sleeve 40, stop
ratchet 44 is provided with one tooth 45 of greater
depth than that of the other seven teeth formed
Mounted to rotate with carrying-member 22
is a feeding-dog 45 to engage, when in its opera
tive position, feeding-ratchet 43 to advance sleeve
40 intermittently step by step. Feeding-dog 45 is
tion of shaft 20 and carrying-member 22 will not
turn sleeve 40.
In using the device, the operator places a
work-piece 21 on pedestal 26, and elevates said
pedestal to cause the work-piece to engage chuck
25. The parts being in the position shown in
Fig. 3, the operator lifts latch-pawl BI and wall
section 52 and begins to turn handle 24. The
turning of handle 24 will eventually bring deep
10 tooth 45 back to latch-pawl 6|, thereby complet
ing the seaming-cycle. The operator now lowers
pedestal 25 and removes the container.
It will
be seen that the seaming operation can be inter
rupted for the purpose of inspection or adjust
pivotally supported at its central point 4'! and
is urged by spring 48 into its operative position.
ment, and then resumed without destroying the
sequence of the steps of the seaming-cycle. Simi
larly, if the operator continues to turn handle 24
ing-dog 46 in its inoperative position out of en
after the completion of the seaming cycle, noth
gagement with feeding-ratchet 43. Cam 50 is
ing will happen to destroy the sequence of the
provided with a gap 5i and with a manually 20 steps of the next seaming-cycle.
Feeding-dog 415 also carries a cam-roll 4.9 to en
gage stationary circular cam 5t‘ to keep feed
movable wall-section 52 to close or expose said
gap, said gap 5! when exposed releasing feeding
dog 46 to engage feeding-ratchet 43 by reason
of the pull of spring 43. Wall-section 52 is, here,
I claim:
In a seaming-mechanism having a rotatable
shaft provided with means to engage and rotate
the work-piece to be acted upon, and having a
seamer-head provided with a plurality of seam
ingérollers, said seamer-head mounted to have a
mounted on a lever 53 pivotally supported ‘at
54 on the framework. A Spring 55 urges wall
secticn 52 into position to close gap 5!. It will
bodily shifting movement to sequentially bring
be seen that, so long as wall-section 52 keeps gap
the seaming-rollers thereof into and out of seam
5i closed, feeding-dog 45 will rotate with car
ing position with respect to said Work-piece, and
in which seaming~mechanis1n said bodily shifting
movement of said seamer-head is e?ected by
rying-member 22 without engaging feeding
ratchet 43 and without turning sleeve AD, but
that, when wall-section 52 has been moved to
expose gap 5!, feeding-dog 46, as it rotates with
means of an eccentric bushing ?Xed to a sleeve
that is mounted loosely on said shaft: the com
bination with said rotatable shaft and with said
sleeve that is mounted loosely thereon, of a feed
ing-ratchet and a stop-ratchet, both mounted on,
carrying-member 22, will engage feeding-ratchet
43 once to each revolution of said carrying-mem
ber to turn sleeve 40 one step.
55 indicates an indexing-pawl pivotally sup
ported at 51 on the framework and urged into
engagement with stop-ratchet 44 by means of
spring 58. Whenever a tooth on stop-ratchet
44 comes opposite indexing-pawl 55, said index
ing-pawl will engage said tooth to stop and in
dex stop-ratchet 44 and sleeve 40, and the parts
are so timed that this occurs at the end of each
step imparted to feeding-ratchet 43 by feeding
dog 4-5. 59 indicates a trip-cam mounted on, and
and to turn with, said sleeve, said feeding-ratchet
constructed and arranged to be engaged intermit
tently by a feeding-dog, when the latter occu-v
pies its operative position, to turn said feeding
ratchet, and thereby said sleeve, one step con
stitutes a part of a revolution, and said stop
ratchet constructed and arranged to be engaged
‘ at the end of each step of said sleeve by an in
deXing-pawl, and to be engaged once to each
revolution of said sleeve by a latch-pawl; a
carrying-member, mounted on and rotatable
with said shaft, constructed and arranged to sup
to rotate with, carrying-member 22. The func
tion of this trip-cam 59 is to engage cam-surface
55 of indexing-pawl 55, once to each revolution
port a pivotally mounted feeding-dog to engage
of carrying-member 22, to move indexing-pawl 50 said feeding-ratchet intermittently when the
55 out of engagement with a tooth on stop-ratch
feeding-dog occupiesits operative position, and to
et 44, and this occurs at the time that cam-roll
support a trip-cam to engage said indexing-pawl
49 reaches gap 5! and feeding-dog 46 engages
intermittently; a feeding-dog, pivotally mounted
feeding-ratchet 43.
on said carrying-member, having means tending
It has previously been shown that stop-ratchet 55 to urge it into operative position to engage said
44 has one deep tooth 45. (ii indicates a manua
feeding-ratchet, and provided with a cam-roll
1y releasable latch-pawl, to engage deep tooth
to engage a stationary circular cam to keep said
45 of stop-ratchet 44, here conveniently mounted
feeding-dog in an inoperative position to prevent
on pivot 54 and connected to lever 53 that car
it from engaging said feeding-ratchet; a station
ries Wall-section 52. So long as latch-pawl 5| 60 ary circular cam to be engaged by the cam-roll
is in engagement with tooth 45 of stop-ratchet
carried by said feeding-dog that is mounted on
44, and wall-section 52 closes gap 5| of cam 50,
said carrying-member to keep said feeding-dog in
rotation of shaft 25 and carrying-member 22 will
an inoperative position to prevent it from en
have no effect on the seaming-mechanism except
gagement with said feeding-ratchet, said circu
to rotate chuck 25}. However, when latch-pawl 65 lar cam having a gap and a manually movable
6! is disengaged from tooth 45, and wall-section
wall-section to close or expose said gap, said gap '
52 is lifted to expose gap 58, then, when shaft
when exposed releasing said feeding-dog and
25 and carrying-member 22 are rotated, feed
rendering it operative to engage said feeding
ing-dog 45 will engage feeding-ratchet 43 once
ratchet to advance said sleeve one step once to
to each revolution of carrying-member 22 and 70 each revolution of said carrying-member; an in
will turn sleeve 45 step by step until said sleeve
dexing-pawl constructed and arranged to engage
45 has made a complete revolution, when latch
said stop-ratchet at the end of each step of said
pawl 55 will again engage tooth 45 to thereby
sleeve, and to be disengaged, by a trip-cam
mounted on said carrying-member, from said
stop rotation of said sleeve 40, and wall-section
stop-ratchet at the time when said feeding-dog
52 will close gap 5| of cam 50 so that further rota
engages said feeding-ratchet to turn said sleeve
one step; a trip-cam mounted on said carrying
member constructed and arranged to move said
indexing-pawl out of engagement with said stop
ratchet once to each revolution of said carry
ing-member to permit said sleeve to turn one
step when said feeding-ratchet is engaged by said
feeding-pawl; a manually releasable latch-pawl
‘ually released, said stop-ratchet to latch said
sleeve against motion; and connecting means be
tween said latch-pawl and said Wall-section of
said stationary cam, whereby the engagement of’
said latch-pawl with said stop-ratchet moves said
wall-section to close the gap in said stationary
cam and whereby the manual release of said
latch-pawl moves said wall-section to exposethe
gap in said stationary cam.
constructed and arranged to engage, at the end
of one revolution of said sleeve after being man- 10
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