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Патент USA US2116068

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May 3, 1938.
H. E. 'GANT‘ZER
GAPPING'APPARATUS
Filled .Oct. 8, 1936
2,116,058
'
3 Sheets-Sheet l
I‘NVENTOR.
?anizer'
BY
'
2,116,068
Patented May‘3,'19__3_8
UNITED STATES . PATENT
‘OFFICE.
anaocsx .
ommo arra’iia'rus
Howard E. Gantaer, Kenmore, N. Y., assignor to"
Consolidated Packaging Machinery Corpora
tion,yBu?.'alo, N. Y., a corporation of New York
‘Application October a. 1936, Serial No. 104,571
'
_ 18 Claims.
- The present invention relates to an improved
cap applying chuck and capping machine for op
erating the same. The chuck comprises novel
means to actuate a deforming annulus and co
5 ‘ operating members to apply deformable caps of
(CL 226-86)
Fig. 1 discloses one form of the invention
which may be used under certain circumstances,
showing the chuck in open condition;
Fig. 2 is a quarter-section of the chuck of Fig.
1 showing the same in closed or operating con
the type comprising a protruding bead which is
crimped and locked onto lugs or ?anges of con
tainers, and the machine comprises improve
ments in a known type of machine whereby the
aforesaid chuck may be substituted for other
dition;
types of chucks.
a “tailor-made” cap;
_
The present application is a continuation in
part of my‘copending application Serial No. 48,
993, ?led November 9, 1935. The machine in
which the chuck is preferably employed is pref
erably of the type disclosed and claimed'in the
patent to Robert N. Cundall No. 1,773,960, and my
copending application Serial No. 683,432, filed
August 3, 1933, which has matured into Patent
20 No. 2,076,631, dated April 13, 1937.
The basic principles of the present invention
15
may be embodied in many forms in order that
various sizes, shapes and types of deformable
caps may be manipulated. One form of the pres
25 ent invention is. designed with respect to ‘a cap
known to the trade as the “tailor-made” or
“tailored” cap, comprising a cap which is par
‘
Fig. 3 isa side view of the neck of a container
provided with lugs designed to hold a tailor
made cap;
Fig. 4 is a view, partially in cross-section, of 10
Fig. 5 is a quarter-section of a modified form
of the chuck, showing the same in open position;
Fig. 6 is a view in skeleton outline showing the
chuck of Fig. 5 in closed position, Figs. 5 and 6 15
being juxtaposed to-show the relative position of
operating parts from the time the chuck jaws
commence to close until the same are at their
innermost positions;
_
>
-
'
Fig. 7 is 'a view in vertical cross-section of the
essential parts of a preferred form of capping
machine having the chuck of Fig. 5 applied there
to and
'
'
Fig. 8 is a detailed view of a'portion of a modi
?ed form' of chuck which may be found desirable 25
under some circumstances.
Referring to‘ Fig. 1 there is shown a chuck
supporting head In which is adapted to be con
nected to a spindle rotatably and slidably mount
beneath lugs on the container and is then de
formed to ?t the cap to the container, thereby ed ina capping machine in the manner of the
frictionally locking the indentations beneath the spindles illustrated and claimed in the patent to
lugs. One object of the present invention is _to Robert N. Cundall #1,773,'960, the spindle, ma
devise a chuck which will rotate the cap'until“ chine and chuck being shown in operative con
the indentations are seated and will then apply nection in Fig. 7. The head ill is provided with
an enlarged disc-shaped ?ange i i which guides a
35 deforming pressure to clinch the cap in place,
relatively movable cylindrical member l2 pro
the chuck being so designed that individual var
iations in both the cap and the container do not vided with an overhanging ?ange l3 positioned
above the ?ange I I. A washer 14 made of leath- '
alter the performance of the chuck.
An advantage of the present invention lies in er .or other frictional material is mounted upon
and ?xed to ?ange l3, the rotation of head ill
40 its simplicity and the. relative simplicity of sub
stituting the present chuck for others designed transmitting rotation to the cylindrical member
to accomplish other functions. A feature of the i2 when. in contact therewith. The member l2.
present invention lies in the adjustability of the supports the operating parts of the chuck, which
various working parts and the ease of controlling include an annular cam ring I5 rigidly. fastened
to member I! and ‘forming an extension thereof ‘
45 the pressures applied to the cap. A further fea
and a cap-deforming annulus i6 rigidly fastened
ture of the invention lies in the relation of vari
ous parts with respect to one another whereby to cam ring l5 and spaced inwardly therefrom.
uniform results are achieved in spite of minor The member l2, cam ring l5 and cap deforming
annulus l6 form a relatively integral structure
variations in the caps and containers.
_
Other objects and advantages of the present which always movesas a unit. A central plung
50
invention will be realized‘. from the following er I1 is guided within annulus i6 and is provided
with a guiding ?ange l8 at its upper end which
speci?cation taken in connection with the ac
companying drawings wherein like numerals re-_ slides relative to the inner surface of member i2,
’ A spring l9, compressively mounted between-am“;‘6
fer to like parts throughout.
tially rotated to position indentations of the cap
55
Referring to the drawings:
nulus l6 and ?ange l8, tends to keep ?ange II in
2
2,1 16,068
rotating contact with washer ll, a plurality of
balls 20 placed on the top of ?ange I 8 transmit
The modi?ed form seats the upper portion and
top of the cap within the depression in the lower
ting the thrust of the spring. A plurality of
surface of the annulus at the same time that
the cap is engaged by the toes of the outer mem
radial slots 2| are cut through the wall of an
nulus l6 and a plurality of rocking?ngers 22 are
bers thus insuring accurate and reliable posi
mounted in the slots, each ?nger extending ra
dially inward and outward from the annulus.
The inner ends of the ?ngers are con?ned with
tioning of the cap within the chuck. Also in
the modi?ed form the chuck jaws are opened
only to such an extent that the bead on the cap
in an annular groove 23 in the lower end of plung
is loosely embraced and are closed only to an ex
10 er H and the outer end of each ?nger is con?ned
within a groove 25 in each of a plurality of con—
centric outer members 26, the members 26 be
ing slidably guided between the cam ring l5 and
annulus 16. The lower end of each of the mem
16 bers '26 is provided with a recess 21 within which
is con?ned an endless coil spring 28 which tends
to keep the lower ends of said members in the
relationship shown in Figs. 1 and 2. The lower
end of each member 26 is also provided with an
outer heel 29 and an inner toe 30, the heel de
signed to be con?ned within the cam ring IS in
order to center and rigidly back the members 26
when in operation and to pass below the annulus
l6 in order that the members 26 may spread
25 against the tension of spring 28 in order to pass
beneath the ?ange of a cap and hold the same.
The toes 30 constitute deforming portions which,
together with the inwardly recessed lower face
of annulus l6, ?t the cap to the bottle by com
30 pressing the deformable bead thereon. The toes
30 and the annulus I6 therefore constitute rela
tively movable chuck jaws.
When the chuck is in the normal position illus
trated in Fig. 1, spring I9 maintains the washer
35 It in driving contact and maintains the heels
29 below the end of cam ring [5. In such posi
tion the chuck may be lowered onto a previously
positioned cap, or onto a cap presented thereto
by suitable cap-feeding mechanism (not shown),
40 which it will engage by reason of the members 26
spreading until the ?ngers 30 pass below the bead
35 of the cap. The cap may now be lowered onto
the neck of a container (if it has not been so
placed previously) until the lower edge of the
15 skirt 36 contacts the ?ange 3'! of the container
or until the top of the cap or the sealing plug 36
contacts the edge 39 of thecontainer, the in
dentations 40 provided on the cap ?nding their
way between the lugs 4i provided on the con
50 tainer. The toes 30 grip the cap with suflicient
force to transmit rotation of head Hi to the cap
until the indentations 40 strike the extensions 42
of the lugs 4|, whereupon the chuck will slip
relative to the rotating head Ill, the frictional
55 factors involved being such that slippage will
occur.
Continued downward pressure on the’
head i0 separates ?anges II and I3 as shown in
Fig. 2 and lowers the plunger l1, thereby com
pressing spring I9 and rocking ?ngers 22 when
60 the lower surface of annulus l6 contacts the top
of the cap- The upper surface of the head 35
is depressed by the lower surface of the annulus
and the sealing plug 38‘ is forced into the neck
of the container to an extent determined by the
65 strength of spring l9.
The outer members 26
concentrically locate the cap by reason of the
tent su?icient to deform the bead. Other fea
tures of the improved form will be apparent from
the following description:
Rotation is imparted to the chuck by a head
l0’ comprising a driving ?ange ll’ over which
is positioned a cylindrical member I2’ comprising
an overhanging ?ange I3’, a friction washer It’
being positioned between the said ?anges. Cylin
drical member i2’ is ?xed to an annular cam
ring l5’ constituting an extension of the mem
ber, the members l2’ and I5’ moving as a unit.
A central plunger 11’ is guided by and guides
a deforming annulus l 6' which is loosely mounted
to slide in the space between cam ring l5’ and
plunger II’. A compression spring I9’ is mount
ed between cam ring l5’ and a ?ange l8’ at the
upper end of plunger IT’. A thrust bearing 20'
is positioned; between ?anges H’ and I8’ in order
to transmit downward thrust from head ii)’. A
plurality of radial slots 2|’ are cut through the
wall of annulus l6’ and a plurality of rocking
?ngers 22’ are mounted therein with their ends
extending radially ‘therefrom. The inner ends
of ?ngers 22' are positioned within a groove 23'
in the lower end of plunger H’, a pin 52 insuring
rotation of the ?ngers with the plunger, and the
outer end of each of the ?ngers is positioned
35
within a groove 25’ in each of a plurality of
concentric outer members 26’. The concentric
outer members are mounted to slide vertically
between the annulus l6’ and the inner surface of 40
cam ring I5’ and are provided with a retaining
groove 21' within which is mounted an endless
coil spring 28' tending to keep the members in
inward position. The lower ends of members
26' are provided with heels 29' which cooperate
with cam ring l5’ to. center and rigidly back
the outer members and with toes 30' adapted
to engage beneath the bead of a cap presented
thereto.
Annulus I6’ is pressed downwardly by a coil
spring 56 positioned between the top of the an 50
nulus and the ?ange l8’, the downward move
ment of the annulus being limited by engage
ment of the rocking ?ngers with the lower surface
of the groove 23'. The ?ngers 22’ and the slots
2|’ are shaped rigidly to lock the parts in de?nite
position, the compression of spring 50 causing
the‘parts to assume the relationship shown in
Fig. 5. Upon downward movement of the chuck
(and rotation thereof as previously described to
seat the sealing plug 38 against the upper edge
39 of a container) spring 50 will be compressed
while compressing the sealing plug 38 without
there being any effect upon spring I9’. Since
members l2’ and I5’, through the frictional con
tact of spring I!’ and other parts, transmit ro
heels 29 being con?ned within the cam ring l5 -' tation to the chuck jaws it can be seen that a
, and raise the indentations 40 against the lower very light resistance to rotation will cause the
surfaces of the lugs 4|. As the plunger moves chuck to stop rotating in spite of the fact that
70 downwardly the rocking ?ngers 22 transmit up
the cylindrical member l2’ and cam ring l5’ 70
ward movement to outer members 26 and the continue to move downward as a unit with head
bead of the cap is deformed between the annulus
l0’ and plunger I'I' until the inner portion of
and the toes 30.
'
_
cam ring i5’ strikes the ledge 5| on annulus i6’.
Figs. 5 and 6 illustrate a modi?ed form of Up to this point the compressive force applied
75 chuck embodying features of great advantage. ‘to sealing plug 36 has been that of spring 50 75
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2,116,088
which may be su?iciently light to permit vproper t mounted on a collar 8'! fixed to gear 69 and pro
seating of the depressions 40 beneathv lugs ll; vided with‘ a limiting abutment 81 and a depress
but at this point the compressive force of spring ing spring 08 adjustably compressed between the
I9’ is added. The compressive force of spring surface of the arm and the head of an adjusting .
I9’ is so chosen that its force, together with that
.of spring 50, is such that the container will be
properly‘sealed-to prevent leakage. Continued
downward movement of head l0’ now causes
the rocking of fingers 22' and therefore the rais
10 ing- of members 2'5’ which have previously been
surrounded and centered by the cam ring l5’.
bolt- 89 as disclosed in the aforesaid Letters Pat
ent'No. 2,076,631. As the chuck rotates from'its.
open position at the right of Fig. 7 it is par;
‘tially lowered to pick up a cap presented there
to by mechanism of the usual type ,(not shown)
and is then lowered into operating position as
shown at the. left of Fig. 7, the container hav
It is to be'noted that the groove 23,’ is of suf?cient ing been positioned on table GI by mechanism
width so that the upper ‘surface of the groove (not shown) and clamped by a clamping arm 65‘
strikes the ?ngers 22-’ at about the instant that‘ - in substantially vertical alignment with the
15' cam ring l5’ strikes the ledge 5|. Fig. 6 shows chuck. The containers are ejected from the ma 15_
the relative position of all of the sliding parts chine-as the table and rotating parts pass from
,
e
at the instant of extreme deforming movement the left-to the right of Fig. 7.
of the chuck jaws, showing that the annulus l6’ _
remains stationary, except for movement incident
20 to the compression of the sealing plug, from the
instant the container commences to resist down
ward movement and also that the movement of
members 26' is limited to that sufficient to im'part the proper squeezing force ?rmly to lock
(Q Li the cap to the container.
Upward movement of head l0’ results, ?rst, in
expansion of spring 19’, thereby raising plunger
ll’ until ‘the lower surface'of groove 23' strikes
the rocking ?ngers 22'. Continued movement
causes the friction member M’ to engage ?ange
l3’ and movement of plunger l1’ and cam ring
l5’ as a unit together with simultaneous open
ing of the jaws. Since the heels 29' pass below
As shown in said Patent No. 1,773,960, an
ejecting plunger I00 may be mounted in a bore
of spindle 11 and provided withv an enlarged head 20
i0l con?ning a light compression spring I22 be
tween the head and the ?tting 9|. At the upper
most position of the spindle the head l0! strikes
an adjustable abutment I02 carried by a ring I03
mounted upon disc 63 which causes compression 25
of ' spring I22 and projection of the ejecting
plunger beneath the lower surface of the an
nulus Hi’ to assure the removal of caps which
failed to become seated upon a container.
Fig. 8 shows a feature which may be found of 80
value in large chucks comprising a series of‘
springs H0 seated in bores in the toes 30 and .
the lower- surface of the annulus l6. ' These
35 26’ may open su?iciently to permit the chuck
springs are designed to be loosely held until the
chuck is in squeezing or closed position and may
that the present form does not tend to raise
tional resistance of the jaws against separation
the container and existing forms of capping ma
chines may be used without the provision of con
after operating.
Modi?cations in arrangement and detail of the
present invention may be devised by those skilled 40
in the art,’and the true~ scope of my invention
is to be determined by the following claims.
the con?ning limits of cam ring 15' the members
to release the capped container.
It can be seen
40 tainer-elevating mechanism.
Fig. 7 shows the chuck of Figs. 5 and 6 in use
upon a preferred existing form of machine. The
machine comprises a ?xed non-rotating post 60v
about-which a table Si is mounted to rotate‘.
45 Spaced discs 62 and 63 arev connected to rotate
with table Si by means‘ which are not shown, ref
, erence being made to Letters Patent No. 1,773,960,
previously mentioned, for a disclosure of such
parts. Vertical rods 04 extending between table
50 BI and disc 62 carry clamping arms 65 and crank
arms 66, .the latter being provided with cam fol
lowers 61 which engage a cam track 68 provided
on the lower surface of a ?xed driving gear 69
fastened to post 60 by a set screw 10. The gear
be so proportioned as to tend to overcome fric
I claim:
1. A capping chuck adapted to apply deform
able caps to containers comprising a cap-deform 45
ing annulus, a plurality of rocking ?ngers
mounted upon said annulus and projecting ra
dially therefrom, a central plunger movable rela
tive to said annulus and having such operative
engagement with the inner ends of said ?ngers
as to rock‘gsaid ?ngers in either direction, a plu
rality of outer cap-deforming members having
operative engagement with the outer ends of said
?ngers whereby said members may be moved-to
ward and away from said annulus by said ?n 55,
09 is provided with vertical. teeth 15 of consid
erablelwidth which are engaged by spur gears gers, and a cam ring surrounding said members
within which said members are guided upon ‘
10 ?xed to spindles 'I‘I vertically guided in bear
ings 18 and 19 provided in discs 62 and 63, re
movement thereof. .
2. A capping chuck adapted to applyv deform- spectively. The spindles are provided with ele-‘
able caps to containers comprising a cap-deform
60 vating mechanism comprising horizontal rollers
80 maintained in radial alignment with post 60' ing annulus, a plurality of rocking ?ngers mount
by guides disclosed in the’aforementioned patent. ed upon said annulus and projecting radially
The ‘rollers 80 ride upon a ring cam, 8| ?xed to therefrom, a central plunger having operative
the upper surface of gear 69 and elevate or lower engagement with the inner ends of said ?ngers
and movable relative to said annulus whereby to
65 the. spindles as shown, the relative widths of rock said ?ngers, a plurality of outer cap-deform 05
gears?Q and 16 causing contact to be maintained
ing members having operative engagement with
therebetween whereby the spindles are continu
the outer ends of said ?ngers whereby said mem
ously rotated about their axes as they are ro
‘ tated bodily about the post 60. At the operative
70 position of the chuck the spindles are lowered to
such a position that the sealing plug of a cap
rests upon the upper edge of a container. In
order resiliently to lower the spindle to proper
position a depressing cam 85 is provided, the
same being mounted upon an arm 86 pivotally
bers are drawn toward said annulus by said ?n
gers, and a cam ring attached to said annulus 70
and surrounding said members, said members be
ing movably guided between said annulus and said
cam ring whereby said cam ring rigidly backs and
centers said outer members upon relative move
ment thereof toward said annulus.
75
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9,116,088
3. A capping chuck adapted to apply deform
center said members upon relative movement
able caps to containers comprising a cap-deform
thereof toward said annulus, resilient means
ing annulus, a plurality of rocking ?ngers mount
ed upon said annulus and projecting radially
therefrom, a central plunger having operative en
gagement with the inner ends of said ?ngers and
movable relative to said annulus whereby to rock
said ?ngers, a plurality of outer cap-deforming
members having operative engagement with the
outer ends of said ?ngers whereby said members
are drawn toward said annulus by said ?ngers, a
cam ring surrounding said members and adapted
rigidly to back and center said members .upon
relative movement thereof toward said annulus,
and resilient means yieldably retaining said mem
bers in position upon movement of said members
from engagement with said cam ring.
yieldably retaining said members in position upon
movement of said members from engagement
with said cam ring, said members being provided
with inwardly projecting toes adapted to spread
against the tension of said resilient means and to
engage the ?ange of a cap when in projected po
sition and being also provided with projecting
heels adapted to engage the inner surface of said
camring upon retraction of said members, and a
‘spring compressively mounted between said an
nulus and said plunger and yieldably resisting the
rocking of said ?ngers.
7. A capping chuck adapted to apply deform
able caps to containers comprising a cap-deform
ing annulus, a plurality of rocking ?ngers mount
4. A capping chuck adapted to apply deform-1 ed upon said annulus and projecting radially
able caps to containers comprising a cap-deform
20 ing annulus, a plurality of rocking?ngers mounted
upon said annulus and projecting radially there
' from, a central plunger having operative engage
ment with the inner ends of said ?ngers and mov
able relative to said annulus whereby to rock said
IO GI ?ngers, a plurality of outer cap-deforming mem
bers having operative engagement with the outer
ends of said ?ngers whereby said members are
drawn toward said annulus by said ?ngers, a cam
ring surrounding said members and adapted rig
30 idly to back and center said members upon rela
tive movement thereof toward said annulus, and
resilient means yieldably retaining said members
therefrom, a central plunger having operative en
gagement with the inner ends of said ?ngers and
movable relative to said annulus whereby to rock
said ?ngers, a plurality of outer cap-deforming
members having operative engagement with the
outer ends of said ?ngers whereby said members
are drawn toward said annulus by said ?ngers, 25
a cam ring surrounding said members and
adapted rigidly to back and center said members
upon relative movement thereof toward said an
nulus, resilient means yieldably retaining said
members in position upon movement of said mem 30
bers from engagement with said cam ring, said
members being provided with inwardly project
' in position upon movement of saidmembers from
ing toes adapted to spread against the tension of
engagement with said cam ring, said members
said resilient means and to engage the ?ange of a
being provided with inwardly projecting toes
adapted to spread vagainst the tension of said re
silient means and to engage the ?ange of a cap
when in projected position.
5. A capping chuck adapted to apply deform
40 able caps to containers comprising a cap-deform
ing annulus, a plurality of rocking ?ngers mount
ed upon said annulus and projecting radially
therefrom, a central plunger having operative
engagement with the inner ends of said ?ngers
and movable relative to said annulus whereby to
rock said ?ngers, a plurality of outer cap-deform
ing members having operative engagement with
the outer ends of said ?ngers whereby said mem
bers are drawn toward said annulus by said ?n
50 gers, a camring surrounding said members and
adapted rigidly to back and center said members
cap when in projected position and being also
provided with projecting heels adapted to engage
the inner surface of said cam ring upon retrac
tion of said members, a spring compressively
mounted between said annulus and said plunger
and yieldably resisting the rocking of said ?ngers, 40
a rotatable chuck supporting head adapted to
move said plunger relative to said annulus and to
compress said spring, and means to cause rotation
of said cam ring with said head when said spring
is extended.
-
8. A capping chuck adapted to apply deform
45
able caps to containers, comprising a cap-deform
ing annulus, a plurality of rocking ?ngers mount
ed upon said annulus and projecting radially
therefrom, a central plunger having operative en 50
gagement with the inner ends of said ?ngers and
upon relative movement thereof toward said an
movablerelative to said annulus whereby to rock
nulus, resilient means yieldably retaining said said ?ngers, the connection between said plunger
members in position upon movement of said. and said ?ngers comprising a groove in said plung
members from engagement with said cam ring, er within which said ?ngers extend, said groove 55
said members being provided with inwardly pro
being of greater width than said ?ngers whereby
jecting toes adapted to spread against the tension, some of the motion of said plunger is lost, and
of said resilient means and to engage the ?ange a plurality of outer cap-deforming members hav
of a cap when in projected position and being ing operative engagement with the outer ends of
60 also provided with projecting heels adapted to said ?ngers whereby said members are drawn 60
engage the inner surface of said cam ring upon toward said annulus by said ?ngers.
retraction of said members.
9. A capping chuck adapted to apply deform
6. A capping chuck adapted to apply deform
able caps to containers comprising a cap deform
able caps to containers comprising a cap-de
ing annulus, a plurality of rocking ?ngers mount
forming annulus, a plurality of rocking ?ngers ed upon said annulus and projecting radially 65
mounted upon said annulus and projecting ra
therefrom, a central plunger having operative
dially therefrom, a central plunger having oper
engagement with the inner ends of said ?ngers
ative engagement with the inner ends of said and movable relative to said annulus whereby to
?ngers and movable relative to said annulus rock said ?ngers, the connection between said
70 whereby to rock said ?ngers, a plurality oi’ outer plunger and said ?ngers comprising a groove in 70
cap-deforming members having operative en
said plunger within which said ?ngers extend,
gagement with the outer ends of said ?ngers said groove being of greater width than said
whereby said members are drawn toward said ?ngers whereby some of the motion of said plung
annulus by said ?ngers, a cam ring surrounding er is lost, a plurality of outer cap-deforming
75 said members and adapted rigidly to back and members having operative engagement with the 75
5
9,116,068
outer ends of said ?ngers whereby said members, to spread‘ against the tension of said resilient
are drawn toward said annulus by said ?ngers, means and to engage the ?ange of a cap when in
_
and a cam ring surrounding said members within projected position.
13. A capping chuck adapted to apply deform
which said members are guided upon movement
thereof.
'
able caps to containers comprising a cap-deform
ing annulus, a plurality of rocking ?ngers mount
ed upon said annulus and projecting radially
-
10. A capping chuck adapted to apply deform
able caps to containers comprising a cap-deform
ing annulus, a plurality of rocking ?ngers mount
ed upon said annulus and projecting radially
10 therefrom, a central plunger having operative
engagement with the inner ends of said ?ngers
and movable relative to said annulus whereby to
rock said ?ngers, the connection between said
plunger and said ?ngers comprising a groove
15 in said plunger within which said ?ngers extend,
said groove being of greater width than said
?ngers whereby some of the motion of said
plunger is lost, a plurality of outer cap-deforming
therefrom, a central plunger having operative en-V
gagement with the inner ends of said ?ngers and
movable relative to said annulus whereby to rock 10
said ?ngers, the connection between said plunger
and said‘ ?ngers comprising a groove inv said
plunger within which said ?ngers extend, said
groove being of greater width than said ?ngers
whereby some of the motion of said plunger is 15
lost, a plurality of outer cap-deforming members
having operative engagement with the outer ends
' of said ?ngers whereby said members are drawn .
members having operative engagement with the
20 outer ends of said ?ngers whereby said members
are drawn toward said annulus by said ?ngers,
and a cam ring movable with‘ respect to said
annulus and surrounding said members, said
members being movably guided between said an
25 nulus and said cam ring whereby said cam ring
rigidly backs and centers said outer members
upon relative movement thereof toward said
annulus.
>
>
11. A capping chuck adapted to apply deform
30 able caps to containers comprising a cap-deform
ing annulus, a plurality of rocking ?ngers mount
ed upon said annulus and projecting radially
therefrom, a central plunger having operative
engagement \with the inner ends of said ?ngers
35 and movable: relative to said annulus whereby to
rock said ?ngers, the connection between said
plunger and said ?ngers comprising a groove in_
said plunger within which said ?ngers extend,
said groove being of greater width than said ?n
40 gers whereby some of the motion of said plunger
is lost, a plurality of outer cap-deforming mem
bers having operative engagement with the outer
ends of said ?ngerswhereby said members are
drawn toward said annulus by said ?ngers, a cam
45 ring movable axially of said annulus and sur
rounding said members and adapted rigidly to
back and center said members upon relative move
ment thereof toward said annulus, and resilient
means yieldably retaining said members in posi
50 tion upon movement of said members from en
gagement with said cam ring.
12. A capping chuck adapted to apply deform
able caps to containers comprising a cap-deform
ing annulus, a plurality of rocking fingers mount
55 ed upon said annulus and projecting radially
therefrom, a central plunger having operative
engagement with the inner ends of said ?ngers
and movable relative to said annulus whereby to
rock said ?ngers, the connection between said
60 plunger and said ?ngers comprising a groove in
said plunger within which said ?ngers extend,
said groove being of greater width than said ?n
gers whereby some of the motion of said plunger
is lost, a plurality of outer cap-deforming members
65 having operative engagement with the outer ends
of said ?ngers whereby said members are drawn
toward said annulus by said ?ngers, a cam ring
movable axially of said annulus and surrounding
said members and adapted rigidly to back and
70 center said members upon relative ‘movement
thereof toward said annulus, and resilient means
' ‘ "yieldably retaining said members in position upon
‘ movement of said members from engagement
is
with said cam ring, said outer members being
provided with inwardly projecting toes adapted
toward said annulus by said ?ngers, and a cam
ring movable axially of said annulus and sur 20
rounding said members and adapted rigidly to
back and center said members upon' relative
movement thereof toward said annulus, resilient
means yieldably retaining said members in posi
tion upon movement of said members from en 25
gagement with said cam ring, said outer members
being provided with inwardly projecting toes
adapted to spread against the tension of said
resilient means and to engage the ?ange of a cap 30
when in projected position and being also pro
vided with projecting heels adapted to engage
the inner surface of said cam ring upon retraction
of said members.
14. A capping chuck adapted to apply deform
able caps to containers comprising a cap-de
forming annulus, a plurality of rocking ?ngers
mounted upon said annulus and projecting radi
ally therefrorma central plunger having opera
‘tive engagement with the inner ends of said
?ngers and movable relative to said annulus
whereby to rock said ?ngers, the, connection be
tween said plunger and said ?ngers comprising
a groove in said plunger within which said ?ngers
extend, said groove being of greater width than
said ?ngers whereby some of the motion of- said 46
plunger is lost, a plurality of outer cap-deform
ing members having operative engagement with ‘
the outer ends of said ?ngers whereby said mem
bers are drawn toward said’ annulus by said ?n
gers, a cam ring- movable axially of said annulus
and surrounding said members and adapted rig
’ idly to back and center said members upon movement relative thereof toward said annulus, re- _
silient 'means yieldably retaining said members
in position upon movement of said members from 55
engagement with said cam‘ ring, said outer mem
bers being provided with inwardly projecting toes
adapted to spread& against the tension of said
resilient means and to engage the ?ange of a
cap when in projected position and being also 60
provided with projecting heels adapted to engage
the inner surface of said cam ring upon retrac
tion of said members, and a spring compresslvely
mounted between said cam ring and said plunger
and yieldably resisting relative movement of said
cam ring and said plunger.
~
15.‘ A capping chuck adapted to apply deform
able caps to containers comprising a cap-de
forming annulus, a plurality of rocking ?ngers
mounted upon said annulus and projecting radi 70
ally thereform, a central plunger having opera
tive engagement with the inner ends of said
?ngers and movable relative to said annulus
whereby to rock said ?ngers, the connection be
tween ‘said plunger and said ?ngers comprising 75
6
,
2,116,068
a groove in said plunger within which said ?ngers
vided with projecting heels adapted to engage the
extend, said groove being of greater width than inner surface of said cam ring upon retraction
said ?ngers whereby some of the motion of said of said members, a ?rst spring compressively
plunger is lost, a plurality of outer‘cap-deforming mounted between said cam ring and said plunger
members having operative engagement with the and yieldably resisting relative movement of said
outer ends of said ?ngers whereby said members cam ring and said plunger, a rotatable chuck
are drawn toward said\annulus by said ?ngers, 'supporting head adapted to move said plunger
a cam ring movable axially of said annulus and relative to said annulus and to compressv said
surrounding said members and adapted rigidly spring,
friction means to cause rotation of said
10 _to back and center said members upon relative
cam ring with said head when said spring is ex 10
movement thereof toward said members, resilient tended, and a second spring compressively
means yieldably retaining said members in posi
mounted between said annulus and said plunger
tion upon movement of said members from en
and yieldingly resisting the rocking of said ?ngers
gagement with said cam ring, said outer mem
until said ?rst spring commences to be com
15 bers being provided with inwardly projecting toes pressed.
15
adapted to spread against the tension of said
17. A capping machine adapted to apply a
resilient means and to engage the ?ange of a I, closure having a skirt provided with a protrud- ‘
‘cap when in projected position and being also ing, compressible annular ?ange and locking
provided with projecting heels adapted to engage
means thereon, to the open end of a container
20 the inner surface of said cam ring upon retrac
provided with a lug ‘adjacent its open end with
tion of said members, a spring compressively which said locking ‘means is adapted to engage 20
mounted between said cam ring and said plunger when said ?ange is'compressed, comprising a
and yieldably resisting relative movement of said spindle, a chuck supported thereby, means to
cam ring and said plunger, arotatable chuck raise and lower said spindle‘and chuck with re
25 supporting head adapted to move said plunger spect to a container positioned therebeneath,
relative to said annulus and to compress said means to rotate said spindle about its axis during 25
spring, and friction means to cause rotation of vertical movement thereof, said chuck including
said cam ring with said head when said spring ‘a clutch member adapted to disengage from said
is extended.
‘*
spindle when the closure is positioned on the
30
16. A capping chuck adapted to apply deform
container and further movement thereof is re 80
able caps to containers comprising a cap-deform~=
sisted by the container, and means within the
ing annulus, a plurality of rocking ?ngers mount
chuck to squeeze the sides of the closure ?ange
ed upon said annulus and projecting radially toward each other during further downward
therefrom, a central plunger having operative movement of the spindle.
,
35 engagement with the inner ends of said fingers
18. A. capping machine adapted to apply a clo 35
and movable relative to said annulus whereby » sure having a skirt provided with a protruding,
to rock said ?ngers, the connection between said compressible annular ?ange and locking means
plunger and said ?ngers comprising a groove thereon, to the open end of a container provided
in said plunger within which said ?ngers extend, with a lug adjacent its open end with which said
40 said groove being of greater width than said locking means is adapted to engage when said
?ngers whereby some of the motion of said ?ange is compressed, comprising a spindle, a
plunger is lost, a plurality of outer cap-deforming chuck supported thereby, means to raise and
members having operative engagement with the lower said spindle and chuck with respect to a
outer ends of said ?ngers whereby said members container positioned therebeneath, means to ro
45 are drawn toward said annulus by said ?ngers, a tate said spindle about its axis during vertical
cam ring movable axially of said annulus and
thereof, said chuck including a clutch 45
surrounding said members and adapted rigidly to movement
member adapted to disengage from‘ said spindle
back and center said members upon relative when the closure is positioned on the container
movement thereof toward said members, resilient and further movement thereof is resisted by the
50 means yieldably retaining said members in posi
container, means within the chuck to squeeze the 60
tion upon movement of said members from en
gagement with said cam ring, said outer members_ sides of the closure ?ange toward each other
during further downward movement of the
being provided with inwardly projecting toes spindle,
and means to vary the compressive force
adapted to spread against the tension of said re
applied to the closure ?ange.
55 silient means and to engage the ?ange of a cap
when in projected position and being also pro
HOWARD IE. GANTZE'R.
55
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