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Патент USA US2119271

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,May 31, 1938.
J, D|¢HTER
‘
2,119,271
METHOD AND MEANS FOR FITTING'CAPS TO TUBULAR CONTAINERS
Filed Dec. 21, ‘1954
Fig.5 ‘
I)? rental’:
7W a“ __
Patented May-31,1938
2,119,271
UNITED STATES ., PATENT OFFICE
v2,119,271
METHOD AND MEANS FOR FITTING CAPS
-
T0 TUBULAR CONTAINERS
Jakob Dichter, Schoneberg, Berlin, Germany
Application December 21, 1934, Serial No. 758,605
In Germany December 22, 1933
8 Claims.
This invention relates to the ?tting of caps to
tubular containers such as those made of glass,
this process being hereinafter referred to as
“capsuling”. In the usual method of capsuling
5. glass vessels, more particularly those which serve
for the accommodation of tablets, pills or the
like, acap or capsule approximately ?tting the
glass is arranged to slide ?rmly upon the latter
by bending in or denting the ?ange portion of
10 said capsule. As such glass vessels are normally
made ~from glass tubes, the diameters of which
18
invention is pressed axially by means of a plunger
l2 so that the margin of the capsule I0 is con
stricted by the hole H and is caused to ?t the
tube 8 in a snug manner.
This action can be
assisted, if desired, by imparting simultaneously a
rotating movement to the plunger l2. In Figure
1 said plunger is about to descend, and in Figure
2 it has eifected the constricting operation and
is about to be raised forpermitting the removal
of the capsuled container 8.
10
This principle is employed in the machine
vary considerably, this capsuling is a tedious and - shown in Figures 3 and 4, which machine com
time-wasting operation which has been hitherto prises a base plate 35 ?tted with a ?xed vertical
carried out during the manufacture of‘ the con
pin 36 carrying a body 31 capable'of angular
tainers and prior to ?lling.
_
movement. 'Within this body the plunger i2 is is
It is the object of the present invention to pro
slidably mounted‘, and is actuated by a lever l9
vide an improved method whereby these disad
having a projection 38 which presses upon the
vantages are overcome, since each individual cap upper end of the plunger l2 so as to permit rota
is ?tted to its own tube either before or after the
20 ?lling operation, thus rendering it unnecessary to
remove the cap until the contents of the con
tainer are about to be used.
,
It is a further object of the invention to pro
vide an improved form of apparatus for'e?'ecting
25
(Cl. 226-80) ,
the ‘capsuling operation, said. apparatus being
simple in construction and comprising in theme
ferred arrangement‘ means for receiving the'con
tainer and capsule and for constricting the edge
tion of the latter during the constricting opera
tion. This movement is effected by the engage 20
'ment of a pin' 22 carried by a plunger H with a
curved slot 23 formed in the body 31, downward
movement of the vplunger l2 being regulated by
a stop screw 20 co-operating with the lever H).
For suitably holding the tubular container 8,
the base plate 35 is provided with a set of jaws 25
l5, conveniently three in number, the upper parts
M of which constitute a constricting member cor
of the latter when an axial pressure is applied to ‘ responding to the ring 9 in Figure 1. The jaws l5
30 the head portion of said capsule conveniently by are actuated by vertical movement of a sleeve i6
means of a plunger.
>
'
It is a further object of the invention to pro
vide an improved arrangement and construction
of automatic apparatus whereby the capsuling
3
operation may be carried out continuously in as
sociation, if desired, with means whereby the
filled‘ and capsuled containers are labelled or
'. otherwise marked.
The invention is illustrated in the accompany
40 ing drawing in which
_
Figures 1 and 2 are diagrammatic sectional ele
vations showing the elements directly associated
with the capsuling operation;
'
,
Figure 3 is a part sectional side elevation of a
upon a ?xed supporting tube 24, this vertical 30
movement being effected by an oblique slot 26
in the tube i6 engaging a ?xed pin 25, rotation
and hence vertical movement of the tube l6 be
ing effected by angular movement of a radial
handle 28 and being controlled by a helical spring
I‘! tending to close the jaws l5; For limiting the
extent to which the container 8 is inserted-into
the jaws IS, a stop member 39 conveniently bear
ing upon a compression spring is carried by a
40
central rod l8 mounted in a ?xed bracket 40.
- In operation the body 31 is moved out of line
. with the jaws l5, this movement being arrested
by a stop‘platel‘l. When a container 8 having
a loosely ?tting cap I0 is placed within the jaws
Figure 4 is a plan corresponding to Figure 3;
I 5, the handle 28 is released, thus allowing the 45
Figure 5 is a part sectional diagrammatic side spring II to close the jaws and the body 31 is
elevation of an automatic type of ' capsuling moved into line. Depression of the handle l9
machine; I
thereupon forces the plunger l2 into contact with
Figure 6 is a diagrammatic plan corresponding the capsule l0. thereby constricting the lower
50
to Figure 5; and
'
>
'
margin of the latter until it grips the container 8
Figure 7 is a diagrammatic elevation of a fur
?rmly.v Upon release of the pressure upon the
ther modi?ed form of machine arranged to oper
lever IS the plunger l2 springs upwardly, and
ate upon a plurality of containers simultaneously. after the chuck has been released by the handle
Referring ?rst to Figures 1 and 2, a glass tube 28 the capsuled container-is removed.
55
I
55.
indicated at 8 ‘is provided with a, loosely ?tting
In ‘Figures 5 and 6, the improved principle is
metal cap or capsule I0 and is ?rmly supported applied to a form of automatic machine having
within a die 9 having a countersunk or other" four stations indicated at 1,, II, IiI and ‘IV in
tapered hole II. The capsule l0 may be further Figure 6; In this case a disc 4|~ is rotatably
00 guided by a plate 13, and in accordance with the mounted upon a bracket 42, and is intermittently
00
45 manually operated device;
'
2
2,119,271
3. In a machine of. the class described, means
for supporting a container, means for moving a
cap axially of the container to close the open end
thereof, means‘ for constricting said cap during
rotated .by a geneva or equivalent mechanism
indicated at 43 so that chuck members 44, four
in number, stop progressively in register with
each of the stations I, II, III and IV. The chuck
members 44, which are similar in construction
the axial movement thereof, and means for effect
to the corresponding part of the mechanism
shown in Figure 3, normally assume their closed
ing relative rotation between the container and
the cap during the constricting of the cap.
condition, but are opened at stations IV and I
by the engagement of the handle 28 with a cam
10 rail 45. The stop rods 18 are also mechanically
4. In a machine of the class described, means
snugly embracing a container adjacent the open
end thereof for supporting the same, said means
comprising a plurality of elements movable radi
actuated by means of a cam rail 46 so as to eject
ally with respect to the container, each of said
the ?nished containers automatically at the sta
tion IV, ade?ecting plate 41 being provided so _ elements being provided with an arcuate portion
that said containers fall on to a delivery chute 48. tapering outwardly toward the open end of. the
container, and means for forcing a cap down 15
15 For operating the plunger 12, the latter is car
ried by an arm 49 mounted upon a rod 29, the wardly over the open end of said container, the tapering portions acting to constrict the cap
latter being reciprocated vertically by engage
during the movement thereof axially of the con
ment at its lower end with a grooved cam 50.
A lateral arm 5| engaging a vertical recess in
20 the bracket 42 prevents rotation of the rod 29.
tainer.
formed of relatively movable sections adapted to
In the operation of. the machine shown in Fig
be moved into gripping engagement with a con
tainer, a die section associated with each chuck
ures 5 and. 6, a container and loosely ?tting-cap
sule is fed by hand into each'chuck member as it
reaches the station I. At due time as deter
25 mined by the Geneva mechanism 43 the capsule
reaches station II where it is constricted by the
plunger l2.
‘
5. In a machine of the class described, a chuck 20
section, said movable sections being adapted
when the chuck is closed to ?rmly grip the con 25
tainer adjacent the open end thereof, said die
sections together forming a die having a bore
tapering outwardly toward the open end of the
container, and means for forcing a cap down
wardly over the open end of. said container, the 30
tapering bore of the die acting to constrict the
cap during‘ the movement of the cap axially of
the container.
6. In a machine of the class described, a chuck
comprising a plurality of relatively movable mem -35
After moving to station III, the
container is labelled or stamped by any suitable
mechanism (not shown), and as the chuck is
30 ?nally taken to station IV the jaws are opened
and the ?nished container is ejected.
In the modi?ed construction shown in Figure 7
an intermittently driven endless band 52 is pro
vided with a series of sockets 53 into which the
35 containers 8 are fed by means of a plunger
bers adapted to grip a container adjacent the
mechanism indicated generally at 54. Capsules
open end thereof to support the container during
ID are then fitted to the containers, and as these
pass beneatha pair of constricting plungers l2 a capping operation, means for moving said chuck
and Ila, the latter automatically descend, thus to each of a plurality of stations, means for open
40 operating upon
two . capsules simultaneously.
The depth to which the containers 8 pass into the
sockets 53 is determined by a guide or abutment.
55, the delivery end 56 of whichapproaches the
curved part of the band so as to expel the ?nished
45 containers on to a delivery chute 48.
_
The actual shape of the ring 9 or equivalen
part for effecting the constriction of the cap
sules can, of course, be varied to produce either
a uniform constriction,‘ or alternatively a. corm
gated or dented effect can be obtained. It is'not
50
essential for the constriction to be effected at the
edge of the capsule, as it may also be made at
any other part of the curved wall of the latter,
either continuously or locally, as for example in
55 a number of sections. By forming the shaping
portion 14 of the apparatus in a plurality of por
tions adapted to accommodate themselves to the
diameter of the container 8, a uniform constrict
ing effect is obtained, even where the containers
60 vary in diameter to an excessive amount.
What I claim is:--
‘
i
.
1. In a method of ?tting caps to containers,
those steps which consist in placing the cap on
the container, constricting the cap while it is in
position on the container, and rotating the cap
during the constricting operation.
2. In a method of ?tting caps on containers,
those steps which consist in placing a cap on the
container, constricting the marginal portion of
the cap while it is in position on the container,
70 and rotating the cap during the constricting
operation.
ing said chuck at one of said stations to permit 40
insertion of a container therein, means for closing
said chuck after insertion of the container there
in, means at another of said stations for moving a
cap axially of the container and into engagement
with the same, means adjacent said opening
means for forcing the capped container upwardly
out of the chuck, and a de?ecting means for di
recting the ejected container to a suitable dis
charge point.
7. In a'machine of the class described, means 50
I
snugly embracing a container adjacent the open
end thereof for supporting the same, said means
comprising a plurality of elements movable radi
ally with respect to the container, each of said
elements being provided with 'an arcuate portion 55
tapering outwardly toward the open end of the
container, means for forcing a cap downwardly
over the open endof said container, the tapering
portions acting to constrict the cap during‘ the
movement thereof axially of the container, and 60
means for rotating said cap forcing means during
constriction of the cap.
8. In a method of ?tting bendable skirted me
tallic caps over cylindrical glass containers, those
steps which consist in placing the cap on the con
tainer, bending the skirt of the cap to engage the
wall of the container while the cap is on the con
tainer, and rotating the cap during the bending
operation to effect a complete circumferential en
gagement oi the bent portion of the cap skirt with 70
the container.
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JAKOB DICHTER.
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