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Патент USA US3085536

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-April 16, 1963
9 Sheets-Sheet 2
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United States Patent Oñîce
Patented Apr. 16, 1963
during a considerable part of its path of travel tne com
pound conduit is surrounded by ‘the compressed air con
duit which further reduces the tendency of leakage of
the compound.
Roland E. Renard, »Los Gatos, and James P. Davidson, 5
An additional feature of the present invention is the
Los Altos, Calif., assignors to National Can Corpora
that -there is no mechanical connection between the
tion, Chicago, lll., a corporation of Delaware
Filed Apr. 25, 1958, Ser. No. 730,939
7 Claims. (Cl. 113-80)
compound valve needle and an «outside source, Ibut on
end, lwhereupon the end may be cured or dried »and then
the path of the nozzle, »thereby lsimplifying the operation
of the machine Vand reducing the necessity for repair
the contrary an electro-mechanical control is employed
whereby the needle is raised and lowered by a compressed
This invention relates to a new and improved non 10 air cylinder and the admission of compressed air to the
cylinder is controlled by an electrical circuit accurately
circular can end-curling and lining machine. More
Itimed to the cycle of operation of the machine. In addi
particularly, »the invention relates to a machine which
tion, a switch `is provided which insures that the needle
first curls the -ñange of noncircular can ends and then
valve will not open when, -for some reason, a can end is
sprays lining compound into the trough of the end. The
machine receives punched ends of noncircular shape, such 15 not deposited under the lining station.
An> additional yfeat-ure of the present invention is the
as oval or rectangular ends, and lperforms -at least tvv-o
fact that fewer par-ts are required to control the shape of
necessary operations in the manufacture of the completed
seamed onto a can body.
Other objects of the present invention will become ap
parent .upon reading »the following specification and re
move the ends ‘from station to station longitudinally of
ferring to -theaccompanying drawings in which similar
the machine. Thus, at the ñrst station, a stack of punched
characters of reference represent corresponding parts in
ends is fed into the machine one «at a time for each stroke
of the machine. At another station, the flange is curled 25 each of the several views.
In the drawings:
and, at still another station, lining compound is applied.
The machine employs a frame which houses the drive
parts thereof and 4supports reciprocating »feed Ibars which
FIG. l is a top plan of the machine with certain parts
One or more idle stations may be interposed between the
stations heretofore mentioned. Thereafter the ends are
FIG. 2 is a longitudinal vertical lsectional view taken
discharged from the machine.
Accordingly, it is a principal purpose of the present in 30 substantially along line 2-72 ofFIG. l, with ¿certain parts
broken away in section to reveal interior construction;
vention to provide a »unitary machine `which performs
FIG. _3 is a transverse `vertical 4sectional view taken sub
stantially along lline 3--‘3 ofFIG. 2 and showing the curl
operations on a can end in sequence, the various stations
being interrelated and driven from `a ycommon source.
Further, a single drive for the curling and lining stages is
One feature and advantage of the present invention
relates to the construction of the curl station, wherein a
compound leverage system is employed «to impart to the
curling roller a movement conforming to -the general
:shape of the can `end being curled and simultaneously
to move the curling roller inwardly progressively during
the cycle of operation.
ing station;
FIG. 4 is aA horizontal sectional view taken substantially
along line `4--4 of FIG. 3;
FIG. 5 is a horizontal sectional view taken substantial
ly along line 5_5 of FIG. 3;
FIG. 6 is an enlarged fragmentary sectional view taken
substantially-along line 6_6 of FIG. -5;
FIG. 7 is a fragmentary sectional view taken substan
tiallyalong line 7--7 of FIG. 5;
FIG. l8 is a schematic perspective view of the basic lever
A `further feature of the invention is the provision of
»system of thecurling station;
means whereby each of the `several curling rollers may be
individually inactivated While the accuracy of _adjustment 45 FIG. 9 is a transverse sectional view taken substantial
ly along line-.9_9 of FIG. 8, showing the `lining station;
of the remaining rollers is checked and adjusted.
ì FIG. lOis a horizontal sectional -vieW taken substan
Other features `of the invention reside in the lining
tiallyalong Aline lll-10 of FIG. 9;
station, wherein there is provided -a combination of hydro
FIG. 1l is a simplified, schematic View `of FIG. 7.
and pneumatic mechanisms, together'with an electrically
FIG. l2 is a fragmentary sectional View taken -substan
`operated mechanism which opens the needle valve control
tially along line 12-12 of FIG. 9.
ling discharge of the spray compound from the spray
FIG. 13 is a schematic wiring diagram of a vportion of
nozzle at precisely the right time and for the proper
the electrical circuit of the lining station.
duration. At the same time the nozzle istraveling about
'I‘he machine which is the subject of the present in
a pathcorresponding roughly to the shape of the end, so
that the lining compound is deposited in the trough of the 55 vention comprises -a base frame 21 and a superstructure
V22 supported by the base vframe 21 and overlying the
curling vand lining stations. Suitably journaled in the
One advantage of the present »invention is the fact that
base frame 2_1-is the main drive shaft 23 fwhich is driven
there is no need of flexible piping «for the compound,
from I.fa-main ,drive motor (not shown) by means of
whereas in previous machines of this general character
various types lof yflexible piping are employed, which pip 60 pulley 16 on motor .shaft 17 and belts 18 and main drive
pulley 24 located on `one end 4of Vthe shaft 23 externally
ing with passage of time becomes a source of leakage.
By reason of the inflammable lnat-ure of t-he lining com
pound, a serious tire hazard arises from leakage.
A `further reduction in the tire hazard occurs in »th-at
of the base frame y21. Likewise suitably journaled in base
frame _21 andextending longitudinally parallel to main
shaft A23) is cam shaft 26 which functions to raise and
the compound is transmitted through the sleeves, and 65 lower chucks at several stations of the machine in timed
sequence to the cycle of operation. Cam shaft 26 carries
a projecting lever 27 bifurcated at its end to receive fol
lower roller 28 which bears against lifter 29 reciprocating
in a guide 31 depending from the main frame. Lifter
feed table 36 to stop movement thereof. The end of
levers 56 opposite pivot 57 is connected by a pin 59 to a
vertical rod 61, the lower end of which is connected by
29 carries a cam roller follower 32 on its lower end, which
engages cam 33 on main shaft 23. Thus, as shaft 2-3
revolves, cam shaft 26 is caused to oscillate in conformity
with the shape of cam 33.
At the top of the base `frame 21 is a feed table 36
which extends horizontally substantially the entire length 10
of the machine. The can ends 37, here shown rectangu
lar in shape, are fed from station to station at the level
of the feed table 36 and, when they are received at each
station, are lifted by chucks, as hereinafter explained,
above the level of table 36. Table 36 provides a pair
of horizontally disposed feed rails 38 which are spaced
apart a distance slightly less than the width of the end
37. Positioned outwardly of rails 38 are elongated lon
gitudinally extending, horizontally reciprocating feed bars
pin 62 to a bifurcated member 63 which carries a cam
follower 64 riding upon cam 65 on shaft 23. Thus, as
shaft 23 revolves, the finger 58 is raised above the level
of the table 36, to prevent unintentional forward move
ment of a can end.
Idle Station B
Idle Station B carries a chuck 71 shaped to fit on the
underside of the can end 37 .
Chuck 7‘1 has on its lower
surface a vertically reciprocal hollow rod 72 which slides
in guide 31 fixed to frame 21. Inside rod 72 is a spring
66 which biases downwardly a tappet 67 which bears
against the roller 28. Hence, as cam shaft 26 oscillates,
chuck 711 is raised and lowered in sequence to the turn
ing of main shaft 23. Above the level of table 36 is a
foot 76 which is biased downwardly by means of spring
39, which slide in ways 41 associated with the base frame 20 77 from a fork 78 fastened to the machine. Foot 76
creates a drag on the end 37 so that it remains at the
21 and are retained between the ways 41 and the feed
idle station and is not moved forwardly or rearwardly
rails 38. At spaced intervals along the length of bars 39
by the reciprocation of the bars 39. Thus, as the end
are inwardly extending feed fingers 42 which engage the
37 is delivered at Idle Station B, the shape of cam 33 is
trailing end of the can end 37 to move it from station
to station longitudinally of the machine. Feed bars 39 25 such that the chuck 71 is below the level of table 36.
After the feed fingers 42 have advanced the end to the
are interconnected at one end of the machine by trans
station B, the foot ’76 prevents longitudinal movement of
versely extending cross-head l43, and this cross-head is
the end 37. Thereafter, in timed sequence to the move
connected to horizontally positioned connecting rod 44
ment of the machine, the chuck 7'1 raises, spring 77 com
by means of pin 46. The opposite end of rod 44 is con
nected by pin 47 to crank cheek 48. Crank cheek 48 is 30 pressing to accommodate this movement, and the end 37
is raised above the level of the table 36. Such movement
caused to revolve in a horizontal plane by means of verti
enables the bars ‘39 to retract in their reciprocating move
cal shaft 49 which is driven from main shaft 23 by bevel
ment without the returning feed fingers 42 moving the end
gears 51 on shafts 49 and 23. Thus, the shaft 23 as it
revolves causes a reciprocation of feed bars 39. 'Ihe
spacing between feed fingers 42 corresponds to the dis 35
tance between the stations of the machine and in no event
is less than the length of the can end 37.
As shown in the accompanying drawings, the can end
Curling Station C
At the curling station, the machine operates on the
ends to curl inwardly the peripheral ñange thereof in
order to form the troughs in which lining compound is
later deposited (at Station E). The end delivered from
Idler Station B by feed fingers 42 is deposited upon a
`37 is rectangular in shape and is of maximum length for
the capacity of the machine. However, it will be under 40
lower chuck 81 on the upper end of rod 82 vertically re
stood that shorter ends may be employed and, further,
that the overall width thereof may be varied by varying
ciprocable in guide `83 attached to frame 21. Rod 82 is
the distance between the feed rails 38, all as well under
biased downwardly by spring 84, so that cam follower
stood in the can-making art.
roller 86 on the lower end of rod 82 is held in contact
Spaced longitudinally of the machine are the follow 45 with cam 87 on main shaft 23. Cam 87 is similar in
ing stations:
function to cam 33, but has a somewhat different shape
Feed Station A--wherein a stack of punched can ends
is supported above the level of the feed table 36 and the
so as to hold chuck 81 above the surface of table 36 for
a longer period of time. Above the level of feed table
can ends are fed »down onto the level of the feed table
36 is an upper chuck 91 on the lower end of chuck rod
one at a time by means not herein illustrated and well 50 92 disposed within hollow vertical spindle 93 and biased
understood in the can-manufacturing art.
downwardly by spring 94. Thus, when, by reason of
Idle Station B-to provide room between Station A
action of cam 87, chuck 81 is elevated, the end is secured
and the next station of the machine.
between chucks 81 and 91. Spindle 93 is mounted in
Curling Station C-wherein a curl is imparted to the
bracket 96 supported by superstructure 22 and is sur
flange of the end.
55 rounded by two sleeves, namely, an inner sleeve 97 and
Idle Station D-to provide space between Station C
an outer sleeve 98, which are rotatable about spindle 93
and the next station.
and likewise rotatable relative to each other. Sleeves 97
Lining Station E-wherein lining compound is sprayed
and 98 are driven by means of sprockets 99 and 101 fixed
into the trough of the can end.
thereto, respectively, and sprockets 99 and 101 are driven
Idle Station F-to provide space between Station E 60 in turn by chains 102 and 103, respectively, which pass
and the next station.
around sprockets 104 and 106 on the upper end of verti
Stacking Station G-wherein the ends are stacked for
cal shaft l107 disposed at one side of the machine. It
will be understood, as hereinafter appears, that the chain
Feed Station A
102 drives the rotatable mechanism of the Lining Station
The construction of the feed station is not herein illus 65 E as well as (hirling Station C. Shaft ~107 carries a bevel
gear 108 at its lower end, which meshes with bevel gear
trated or described and forms no part of the present in
109 on horizontal shaft 111. Shaft 111 has bevel gear
vention, inasmuch as means for feeding an end at a time
112 which meshes with bevel gear 113 on shaft 23, so
from a vertical stack of ends is well understood in the
that the curling and lining stations are driven in syn
can-making art, and there are numerous mechanisms for
70 chronism with the other parts of the machine.
such purpose. At the forward end of Station A is a stop
The Curling Station C includes a pair of first opera
mechanism which consists of a lever 56 pivoted about a
tion curling rollers 116, which are disposed on diametri
transverse axis 57 having an upwardly extending finger
cally opposite sides of chuck 91, and also a pair of sec
58 which, in timed sequence to the operation of the ma
ond operation curling rollers 117 which are disposed on
chine, is interposed into the path of the ends along the 75 diametrically opposite sides of chuck 91 and angularly
displaced approximately 90° from rollers 16. Each end
37 is ñrst acted upon by a pair of first operation rollers
116 and then by a pair of second operation rollers 117,
all as well understood in the curling art.
Inasmuch as
the actuation of rollers 116 and 117 is substantially the
same, the means for actuating only one of rollers 116
will be described. Roller 116 is rotatably disposed in a
boss 118 on the outer end of horizontal lever 1119. A
vertical shaft :121 is fixed to the inner end of arm 119.
Shaft 121 is eccentrically rotatably mounted in a cylindri 10
cal sleeve 122 received in a housing 123 and supported
from sleeve 97. The upper end of shaft 121 carries a
horizontally disposed arm 124 on the outer end of which
is a cam follower roller 126 fitting into the groove 127
of a box cam 128, which is a change part of the machine,
in that it may be replaced when different sized or shaped
can ends are being curled.
The inward and outward movement of íirst and sec
ond operation rollers 116 and 117 and their curl and no
rollers 1'16 and 117 are Withdrawn from contact with the
end 1317 and the curling operation is completed. The
chuck 81 retracts the end 37 to the level of the feed table
36, and the feed bars 139 then move the end to Idle Sta
tion D.
The Ivarious elements described in the section entitled
“Curling Station C” are sometimes referred to in the
claims as “edge bending elements.”
Idle Station D
This station is similar in construction to Station B.
Similar reference numerals are applied to Station D.
Lining S tation E
At Lining Station E there is located a chuck 161 sim
ilar to chuc-k 71 and raised and lowered in timed sequence
to the operation of the machine relative to the feed table
36 by means of arm 162 on cam shaft 26. A nozzle 163
is positioned above the chuck 161 and is given a move
ment roughly similar to the s'nape of the trough of end
curl position are controlled by ñrst and second operation 20 37 as formed at Station C. The movement of nozzle 163
curl cams 136 and `137, respectively, on the periphery of
is controlled by means of box cam 164» stationarily
sleeve 98. The elevation of cams 136 and y137 is differ
mounted at the lining station.
ent, and hence cam follower rollers 138 and '139, respec
The operating mechanism Ifor the lining station is sup
tively, engage only one of the cams 136 and 137, and
ported from a vertically bored support 166 attached to
thus control separately the rollers 116 and 117. Roller
the superstructure 22. Within support 166 is a hollow
138 is held in contact with the outer edge of curling cam
spindle 167 and within the bore of hollow spindle 167 is
136 and roller 139 is held in contact with the outer edge
of cam 137 by reason of spring 129 interposed between
a pipe 168. Pipe 168 is connected at its upper end 169
to a source of compressed air. The duct »17‘1 between pipe
a boss 13-1 on an extension of sleeve 9‘7 and the arm 124.
168 and spindle 167 is connected at its upper end by
The pressure of spring i129 may be adjusted by means of 30 means of conduit 172 to a source of lining compound.
adjustment screw 132 in arm 1-41.
It will be noted that
Rotata-ble about spindle 167 is a head 173 having an
outward extension 174 and a depending vertical member
that there is a relative movement between sleeves 97 and
176. Head 1,73 is driven by -means of sprocket Á1>77
98, and hence the rollers 13'8 and 139 move relative to
around which chain 10'2 passes. The lower end of mem
cams 136 and 137 at a slow rate as the sleeves 97 and 98 35 ber 176 carries a horizontally disposed arm '178 on the
revolve around the spindle 92. Roller 138 is mounted on
outer end of Áwhich is mounted cam follower roller y179
the outer end of horizontally disposed arm 141. Arm
which ñts in groove 181 .of cam 164. The upper end
141 carries on its opposite end a yoke 142 in which is
of head 1-73 carries an annular insulated block 182 on
rotatable a horizontally disposed adjustment screw 143.
the top of which is a conductive collector ring 183 en
Between the bifurcations 1142 is an adjustment block 144` 40 gaged by brush 184 depending from the superstructure
which receives the upper end of rod 146. A lock screw
22 and connected to a source of electrical energy indi-l
the diameters of sprockets 99 and v101 are different, so
147 disposed at right angles to screw 143 bears against
block 144 and locks the same in position, once its ad
justment is completed. Rod 146 is oscillatable inside a
bore in cylindrical member 122, and on its lower end it
carries a lever 148 having a finger grip 149 disposed
above boss 118. A recess 151 is cut in cylindrical memI
ber 122 to permit a ninety-degree movement of rod 146.
cated byV reference numeral 186. Thus, as head `173 re*
volves, brush 184 maintains constant electrical contact
with ring 1183, and this is transmitted by means of elec
trical conduit 187 to the needle valve control housing `l188
disposed to one side of member 1718.
The outward extension 174 is formed with two ducts
191 and 192, which communicate with duct 171 and the
The upper end of rod 146 carries a block i152 which is
interior pipe 168, respectively, there being appropriate
received in a recess l153 in block 14‘4, and by reason of 50 sealing rings 198 so that, as the head 173 revolves, 'con
the fact that block 152 is eccentric relative to rod 146,
turning of lever 148 causes roller 116 to be removed
from contact with can end ‘37.
Rod 146 is formed with a plurality of notches, which
stant fluid communication is maintained between ducts
191 and 192 and 171 and 168, respectively. -Duct 191
communicates with a vertically positioned duct 193 in
vertical member 176, and duct l192 communicates with
are engaged by inwardly projecting detents 157 slidable 55 vertical duct 194 in member 176. Duct 19:4 surrounds
in horizontal guides 158 in cylindrical member 1‘22. De
duct 193 for a considerable portion of its passage and
tents 157 engage notches and hold the rod 146 in its curl
tends to prevent leakage of sealing compound >and thus
or no-curl position as the case may be, and prevent un
reduces the chance of afire hazard.
intentional dislodgment thereof.
Nozzle 163, as best shown in FIG. l0, is controlled by
The 11o-curl position of the curling roller permits in 60 a needle valve 281 which is vertically reciprocal and on
spection of the adjustment of the opposite roller, as is
its upper end carries a pneumatic piston 28,2 vertically
well understood in the curling and the can-seeming arts.
reciprocal in pneumatic cylinder 263. A duct 204 com
The adjustment of the curling rollers 116 and i117 is by
municates between duct 193 and the chamber 286 in
turning screw 1143.
cylinder 283.
Piston '2112 is pneumatically `controlled,
The composite effect of the shape of cams 127 and 136 65 there being an upper port V207 and a lower port 268 in
and 137 is such that the rollers 116 and 117 are caused
cylinder 283. Compressed air from duct 194 passes into
to revolve about the end 37 in a path which assumes the
pneumatic valve chamber 209 and is alternately directed
shape of the particular can end 37 being curled. The ñrst
to port 287 or port 208 by slide valve 211. Slide valve
operation rollers 116 initially contact the end 37 and
gradually move inward until the first part of the curling 70 211 is controlled by a pair of solenoids 2112 and 213.
The wiring diagram for solenoids 212 and 213 is shown
operation is completed. During the ñrst operation, the
in FïG. 12. As illustrated in FIG. l2, a source of al
second operation curling rollers 117 are held inoperative.
ternating current 216 is rectified by rectifier 217. Lead
Thereafter, rollers 116 are held inoperative and rollers
218 extends to a terminal 219 with which contact is made
117 perform their function.
and broken by contact 221 on the timer arm of timer
After the second operation is completed, both sets of
switch 222 which is controlled by timer cam 223, which
is rotated in timed relation to shaft 23 by means not
herein illustrated and described. In series with the timer
about said lining spindle, said last mentioned means in~
cluding said second drive sprocket, a nozzle mounted for
switch 222 is an end detector switch 224 mounted on
movement with said head, cam means for imparting to
said nozzle an oscillatory movement relative to said head
chuck 161. When detector finger 226 is depressed by
to conform the path of said nozzle to the shape of said
reasons of the presence of a can end 37 on the chuck 161,
can end as said head moves around said lining spindle,
switch 224 is closed. So long as switches 222 and 224
are closed simultaneously, relay 227 is energized. Ener
gization of relay 227 closes a holding contact 228 which
means for delivering lining compound through said lining
spindle and said head to said nozzle, lining compound
valve means for controlling emission of lining compound
short-circuits switch 22.4 and assures energization of relay 10 through said nozzle, and valve-actuating means for actu
227 until timer cam 223 opens switch 222. Relay 227
ating said lining compound valve means.
also has two other contacts 229 and 231. Contact 229 is
2. A machine according to claim l, in which said
connected by lead 23?. to a pair of silicon half-wave recti
valve-actuating means comprises a fluid cylinder in said
fiers 233 and 234. The polarity of rectifiers 233 and 234
nozzle means for delivering fluid under pressure to said
is reversed, the rectifier 233 being connected to solenoid 15 fluid cylinder, a piston in said fluid cylinder connected
212 and rectifier 234 being connected to solenoid 213.
to said lining compound valve means, fluid valve means
When relay 227 is energized, contact 229 is attracted to
in said head controlling flow of fluid to said fluid cylinder
the contact 236 which is directly connected to the nega
to open and close said lining compound valve means, a
tive side of rectifier 217, and this energizes solenoid 213
pair of solenoids in said head positively controlling said
which opens valve 201. When relay 227 is deenergized, 20 fluid valve means, both for opening and closing of said
contact 229 engages contact 237 which is connected to
lining compound valve means, an electric switch opened
the positive side of rectifier 217, and hence current passes
and closed in timed relation to rotation of said drive shaft,
to solenoid 212 through rectifier 233 and the valve is
an electric circuit including said switch and solenoids to
closed. Solenoids 212 and 213 are grounded as indicated
govern emission of lining compound from said nozzle,
by reference numeral 238, and accordingly contact 23-1 is 25 and means separating said -fluid cylinder from said nozzle
likewise grounded. Contact 231 engages either of con
whereby fluid is not discharged through said nozzle.
tacts 239 or 241 which are always at opposite polarity
with respect to contacts 236 and 237, respectively. There
3. A machine according to claim 2, in `which said
means for delivering fluid extends through said spindle
-by the circuit through the solenoids is completed.
and head.
Thus, the end 37 is supplied with lining compound 30 4. A non-circular can end lining mechanism compris
through nozzle 163. Cam 223 holds the needle 201 open
for a sufficient length of time to spray the desired amount
ing means for holding a non-circular can end, a spindle,
a head journalled on said spindle, means for revolving
of compound into the trough of the end 37. While the
said head and said spindle, an arm pivotally mounted on
nozzle 163 is open, cam 181 controls the movement of
said head, a nozzle on said arm, means for moving said
nozzle 163 to follow the contour of the trough of the 35 arm relative to said head to impart to said nozzle a
end I37. If no end is present in the lining station, switch
224 prevents opening of the needle 201.
non-circular path conforming to the shape of said can
end, double-acting lining compound valve means for said
nozzle mounted for movement with said nozzle, said lin
Idle Station F
ing compound valve means comprising a compound valve
Idle Station F is similar in construction to Idle Station 40 having a stem, a double acting fluid cylinder having a
D and similar reference numerals are applied.
.piston directly connected to said stem, a double-acting
fluid valve located in close proximity to said fluid cylinder
Stacker Station G
and movable with said compound valve controlling flow
-At the right end of the machine, as viewed in FIGS.
of fluid to said fluid cylinder to open and close said lin
1 and 2, is the stacker station, which is not illustrated 45 ing compound valve means, means including said fluid
or described herein in detail. Chuck 71 at said station
is actuated in the same manner as chuck 71 of the preced
valve for delivering fluid under pressure to said fluid
cylinder from a source remote from and movable inde
ing stations. On `the up stroke of chuck 71, the end
pendently of said nozzle, a pair of solenoids positively
received from Idler Station -F is lifted above the surface
controlling said fluid valve, an electric circuit for said
of feed table 36. AWhen it has been lifted, the end is 50 solenoids including a switch opened and closed in timed
received in a stacking mechanism, as well understood in
relation to movement of said nozzle, and lining compound
the can-manufacturing art. There are many such stacking
delivery means including said lining compound valve
mechanisms, and several conventional types may be em
means for delivering lining compound to said nozzle, and
ployed in conjunction with the present invention. Al
means separating said fluid cylinder from said last men
ternatively, a dryer of conventional type to cure or dry 65 tioned means whereby fluid is not discharged through
the lining compound may be installed at Station G.
said nozzle.
What is claimed is:
5. Mechanism according to claim 4 in which said lin
1. In a machine for curling and lining non-circular
ing compound delivery means and said fluid delivery
can ends of the type having a plurality of longitudinally
means extend through said spindle, said head, and said
spaced stations and a frame, a drive shaft journalled in 60 arm.
said frame, and means driven by said drive shaft for
6. Mechanism according to claim 4 in which said fluid
:advancing a can end from station to station along said
delivery means comprises a pipe extending through said
frame, said end being non-rotatably held at each said
spindle, a first duct in said head, means for sealing com
station, the improved combination comprising curling
munication between said pipe and said first duct while said
means at a curling station, said curling means including 65 head turns, and a second duct in said arm communicat
a first drive sprocket arranged to drive said curling sta
ing with said first duct while said arm turns, said second
tion, said curling means having a curling spindle on
duct connecting to said fluid valve; and in which said
which said first drive sprocket is mounted and on which
lining compound delivery means comprises, a third duct
are also mounted edge `bending elements for curling said
in said spindle, a -fourth duct in said head, means for
end, lining means at a lining station, said lining means 70 sealing communication between said third and fourth
including a second drive sprocket arranged to drive said
ducts as said head turns, an arm pivotally mounted on
lining station, said first and second drive sprockets being
said head and on which said nozzle is fixed, and a fifth
driven from said drive shaft by a chain connecting said
duct in said arm leading to said nozzle communicating
first and second sprockets, said lining means comprising
with said fourth duct while said arm turns.
a lining spindle, a head, means for rotating said head 75
`7. Mechanism according to claim 6 in which said third
duct surrounds said pipe and said fourth duct is inside said
íìrst duet for at least a `substantial part of its length.
References Cited in the iìle of this patent
Krueger et al. __, ______ __ Dec. 20, 1932
1,9 12,2»5 8
:Coyle _____________ __.-- May 30, 1933
Coyle ______________ ____ Apr. 17, 1984 10
2,015=2,5 68
2, 062„ 863
'Heald ______ __-__-y____ __ Sept.
2, 357,793
‘Roselund _______ __f__„__ Mar. 14, 1944
Clark _______________ __ Sept. 12., 1944
'Peterson et al. ________ __ lJune 24, 1952
Cameron _______________ Dec. 1, 1936
Gusta-fsson et al. _______ __ Aug. 3J, 1943
2,654,9‘1 1
Shanlip et al. -___- _____ .__ Oct. 13, 19513
2,9‘5 4,5 85
Glowen et al. _________ __ July 24, 1956
Siefen ______________ __ Jan. l6,
Simpson _______ __» ________ _ Oct. 4, 1960
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