US1372962A - Machine for forming and applying ring-liners to can ends - Google Patents

Description

A. L. KRONQUEST. MACHINE FOR FORMING AND APPLYING RING LINERS T0 CAN ENDS.

APPLICATION FILED NOV. 20, I918.

Patented Mar. 29, 1921.

4 SHEETS-SHEET l.

A. L. KRONQUEST. MACHINE FOR FORMING AND APPLYING RING LINERS T0 CAN ENDS. APPLICATION FILED NOV. 20, 191B.

4 SHEETS--SHEET 2.

'- IIIIIIIIIIIII III! IIIIIII Patented Mar. 29,1921

A. L. KRONQUEST. MACHINE FOR FORMING AND APPLYING RING LINERS T0 CAN ENDS. APPLICATION FILED NOV- 20, 1918.

1,372,962. e ted Mar- 29, 1921.

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A. L. KRDNQUEST. MACHINE FOR FORMING AND APPLYING RING LINERS T0 CAN ENDS.

APPLICATION FILED NOV- 20| I9I8.

Patented Mar. 29, 1921.

4 SHEETSSHEET 4.

UNITED STATES PATENT OFFICE.

ALFRED LEE KRONQUEST, OF CHICAGO. ILLINOIS, ASSIGNOR 'IO'CONTINENTAL CAN CO., INCORPORATED, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

MACHINE FOR FORMING AN D APPLYING RING-LINERS T0 CAN ENDS.

Specification of Letters Patent.

Patented Mar. 29, 1921.

Application filed November 20, 1918. Serial No. 263,338.

To all whom it may concern:

Be it known that I, ALFRED L. KRON- QUEST, a citizen of the United States. residing at- Chicago, in the county of Cook, State of Illinois. have invented certain new and useful Improvements in Machines for Forming and Applying Ring-Liners to Can Ends, of which the following is a description, reference being had to the accompanying drawlng and to the figures of reference marked thereon.

The invention relates to new and useful nnproyements in machines for forming and applying ring liners to metal can ends, and more particularly a. paper ring liner to a can end having the peripheral edge thereof formed with a curl to facilitate the stacking of the ends and the forming of the flanges of the can end and can body into a double seam.

In my co-pending application Serial No. 252.391. filed September 3d. 1918. I have shown and described a method of forming and applying ring liners to can ends. wherein the metal of the can end is utilized as a cooperating element in the final cutting of the rin liner.

An object of the present invention is to provide a machine for carrying out said method.

A further object of the invention is to provide a machine wherein the ring liner is simultaneously cutfrom a strip of material and applied to the can end.

A further object of the invention is to provide a machine of the above character, wherein an adhesive is applied to the inner face of the groove in the can end: after which the ring liner is applied to the can end and is seated against the adhesive material.

A still further object of the lnvent-ion 1s to provide a machine wherein the can ends are taken one at a time from a stack-holder; an

adhesive applied to the groove in the can end: a ring liner cut and applied to the groove and seated against the adhesive. and wherein the can end has an identifying mark impressed therein.

A still furtherobject of the invention is to provide a machine of the above character with means for restacking the can ends after the liners have been applied thereto.

These and other objects will in part be obvious and will in part be hereinafter more fully disclosed.

In the drawings, which show by way of illustration one embodiment of the invention-- Figure 1 is a view in side elevation of a machine embodying my improvements;

F 1g. 2 is a plan view of the machine;

Fig. 3 is a vertical sectional view through the machine; Fig. 4 is an enlarged view. showing partly in section and partly in side elevation, the position of the parts, with the can end and paper strip placed for cutting;

Fig. 5 is a similar view. but showing the can end raised into cutting relation to the rotating head;

Fig. 6 is a detail showing in section a portion of a can end. the paper strip and the ball just as it is pressing the strip into engagement with the can end, so that the metal edge of the can end will sever the strip;

Fig. 7 is an enlarged sectional view through a portion of the can end. showing the paper ring linerformed and seated in the groove in the can end:

Fig. 8 is a view partly in plan and partly in section of the can end releasing mechanism;

Fig. 9 is a sectional view through the seating devices'showing the dies for marking the can end.

The invention broadly is directed to a machine for forming and applyingring liners to metal can ends. which can ends are formed with a curled edge to facilitate the stacking of the can ends and also to facilitate the rolling of the edge of the can end and the flange on the can body into a double seam.

The ring liners are preferably made of paper. although other suitable substance may be employed. The paper from which the liner is to be cut is in strip form and is fed intermittently through the machine. the strip being presented first to a cutting die. where a disk is cut from the strip. so as to form the inner edge of a ring liner. After the cutting of the disk from the strip. the paper strip is then moved. so as to bring the same into register with the rotating head chine.

which cooperates with the can end in the final severing of the paper ring liner.

The can ends are stacked and are taken one at a time from the stackholder and are first presented to a station where an adhesive is applied to the groove in the can end at a plurality of spots. The can end is then brought into alinement with the rotating pressing head, which cooperates with the can end in the cutting of the paper strip. This head rotates continuously'and is preferably provided with'a series of balls, which are adapted to bear on the paper strip when the can end is raised into engagement with the lower face of the strip. The pressing of the can end against the strip and the strip against the balls, causes the edge of the can end to sever the paper strip. thus completing the cutting of the paperliner. The balls also force the cut liner into the groove. The can end is then presented to a station wherein the liner is pressed firmly against the bottom of the groove in the can end and against the adhesive material, thus sea-ting the liner in't-he can end. After this operation, the can end is then carried to the next station, where it is re-stacked. During the progress of the can end through the machine and preferably at the station where the ring liner is seated in the groove in the can end. cooperating dies engage the can end and impress an identifying character in the metal of the can end.

Referring more in detail to the drawings. I have shown my invention applied to a machine consisting of a suit-able supporting frame 1. having a bracket 2. in which is mounted a roll 3 formed from the paper strip. indicated at P. The paper strip passes from the roll 3 through cooperating feed rollers 4 and 5. journaled in suitable brackets 6. carried by the frame of the ma- Th'ese rollers 4 and 5 are driven at a uniform speed, so that the stri is fed at a uniform rate and without jerring from the roll 3.

The strip of paper after passing the rollers 4 and 5 sags into a loop indicated at P in the drawings. The paper strip then passes between the feed rollers 7 and 8. These feed rollers 7 and 8 are driven intermittently by a suit-able Geneva stop mo- ,ti-on. By operating these rollers intermittently. the paper beyond the rollers will be fed intermittently and at the same time through the loop formation P in the strip. said strip may be continuously fed from the roll 3.

The strip is directed across the table of the machine and passes first underneath a cutting die 9. Cooperating with the cutting die 9 is a suitable sleeve 9. which receives the disks which are cut from the strip of paper. At this station. the center of the ring liner is formed. The paper strip then passes underneath a rotating head 10, which carries a series of balls 11. These balls are spaced at suitable distances apart and are held on the rotating head by a retainin plate 12. This retaining plate is so shaped as to form a pocket for the ball, so that it may rotate freely, but said ball is held from yielding as it turns against the hardened face of the head 10'. The rotating head 10 is carried by a shaft 13. A ball bearing 14 serves to take the upward thrust of the head. The opening in the paper formed by the cutting of the disk is centered under this head.

Mounted in suitable bearings in the frame of the machine is a main operating shaft 15. This main operating shaft 15 is actuated by a belt wheel 16. which may be connected to the shaft through a cone clutch mechanism 17. This cone clutch mechanism is controlled by a hand lever 18 at the left of the machine, as viewed in Fig. 3 and also by a hand lever 19. at the right of the machine as viewed in'this figure. The hand lever 19 is connected to a rod 20 which slides in bearings in the machine, and this rod at its other end is connected to the lever 18, so that the operator by moving either the lever 18 or 19 can manipulate the cone clutch.

The main shaft 15 carries a bevel gear 21. This bevel gear 21 meshes with the bevel gear 22 011 the shaft 23. which is also mounted to rotate in suitable bearings carried by the frame of the machine. The shaft 23 carries a bevel gear 21. which meshes with a bevel gear 25 carried by a shaft 26. This shaft 26 carries a gear 27. which meshes with a gear 28 carried by the shaft on which the roller 4 is supported. The roller 4 is positively driven and the roller 5 is frictionally driven.

Mounted on this shaft 26 is a rotating disk 29. which carries rollers 30. adapted to cooperate with a radially slotted disk 31, thus forming a Geneva stop motion which operates in the usual way to impart an intermittent step-by-step movement to the radially slotted disk 31. This radially slotted disk 31 is carried by the shaft on which the roller 7 is mounted and the roller 8 is frictionally driven from this roller 7. In this way the paper is continuously pulled from the roll 3 by the positive continuous motion imparted to the roller 4 and is intermittently fed to the machine by the step-bystep movement of the roller 7.

Mounted on the shaft 15 is a sprocket wheel 32. The shaft 13 is mounted to rotate in a bracket head 33. which is bolted to the framework of the machine and extends above the table of the machine. Also mounted in this bracket head is a fixed cross shaft 34. which freely carries a bevel gear 35 meshing with a bevel gear 36 on the shaft 13. Secured to the bevel gear 35 is a sprocke wheel 37. A chain 38 runs over the sprocket wheels 32 and 37, and thus the shaft 13 in the upper supporting head is continuously rotated from the main shaft 15.

The can ends into which the rin liners are to be inserted, are indicated at L in the drawings. Each can end has its edge curled, as indicated at 6, thus forming a groove e in which the liner is to be placed. The finished rin liner is indicated in Fig. 7 at P. It will lie noted that this ring liner is seated in the bottom of the groove e. The can ends E are stacked in a can end stackholder 39. They are released from this stackholder by a suitable releasing mechanism. In Fig. 8 I have shown one form of releasing mechanism, which consists of a series of supporting and releasing dogs 41, operated by a rotatable ring 42. As the ring is rotated in one direction or the other, these dogs release a can end, which drops on to the table of the machine.

The can ends are fed intermittently across the table, first to the station where the adhesive material is applied; then to the cutting station; then to the ring liner seat station; and finally to the re-stacking station by a reciprocating push rod 43. This push rod 43 is formed with a series of projections 44, spaced a suitable distance apart, so that there is a projection operating to position a can end simultaneously at each station.

The push rod 43 is reciprocated by means of a lever 45, fulcrumed at 46, to the frame of the machine, and this lever is oscillated by'a crank 47 carried at the upper end of a vertical shaft 48. This vertical s haft 48 is mounted to rotate in suitable bearings on the machine frame and is provided with a spiral gear 49, which meshes with a spiral gear 50 carried by the shaft 23. As this shaft 23 rotates, it will cause the lever 45 to oscillate. The lever 45 has a forked end 51, which straddles a pin 52 extending downwardly from the push rod 43.

p The ring 42 of the stackholder is oscillated by means of a lever 53, fulcrumed at 54 on the frame and formed with a forked end 55, adapted to straddle apin 56 carried by a projection extending outwardly from the ring 42. The other end of this lever 53 is also forked so as to straddle a pin 57 carried by the lever 45. As this lever oscillates in one direction, it will move the lever 53 in the opposite direction at the end thereof connected to the releasing ring of the stackholder.

The operation of the push rod will be more clearly understood after the devices operating at the various stations have been described.

The can end is presented first to the station where the adhesive material is applied to the bottom of the groove e. This adhesive applying station includes an upper support 58 which is in the form of a reservoir or the adhesive and projecting from this support 58 is a series of nozzles 59 for applying the adhesive material ata series of spots or places on the can end; In Fig. 3 of the drawing, a can end is shown in place ready for the applying of the adhesive material thereto.

This upper supporting member is carried by the bracket head 33 and is fixed thereto. The can end is raised from the table of the machine by means of a support 60. This support 60 is carried by a rod 61, which is capable of reciprocating vertically in suitable bearings in the frame of the machine. The lower end of the rod 61 is pivotally coiiperates with an eccentric 63 formed as a part of the hub of the gear wheel 21.

As the main shaft rotates, the rod 61 will be raised and lowered and this will cause the support 60 to be raised into engagement with the can end and lift the can end from the table "into contact with the adhesive applying devices. When the support drops, then the can end will be lowered again on to the table or on to the push rod, which is oved to carry the can end to the next station.

In this connection it may be noted that when the can end is raised from the push rod, the push rod is moved to the left as viewed in Fig. 3, so as to bring the next right hand projection to the left side of the can end and when the can end is again lowered, then the push rod as it moves to the right will carry the can end to the next station. This brings the can end after it has the adhesive applied thereto, underneath the rotatinghhead 10 and into axial alinement therewit of the ring lineroccurs. simultaneously with the applying of the ring liner to the can end.

The cutting of the can end liner is brought about by utilizing the metal edge of the can end itself as a coiiperating. element in the severing of the paper to form the ring liner.

Referringto Fig. 5 of the drawings, it will be noted that the balls 11 press the paper hard against the edge of the metal, forming the curl e of the can end E. This raw edge of the metal will out the paper and it is the can end itself that is the real cutting element of the machine. The halls are pressed against the paper to bring about this cuttin action by a yielding supporting head 64. his yielding head 64 is carried by a reciprocating sleeve 65. The reciproeating sleeve 65 carries a roller 66 at its This is the station where the final cutting .thehead normally raised and the upward movement is limited'by the heads of the bolts. After the can end is brought into proper alinement with the rotating head and the opening in the paper strip from which the ring liner is to be formed, then the supporting head 64 is raised and comes into engagement with the can end and lifts the same against the head 10, so that the outer face of" each ball travels in the same path. Let us suppose that there is a notch in the curled edge of the can end. It is well known that where these curled edges are defective, for this or other reasons, it is apt to make a leak when the can end is finally secured to the can body, and it'is desirable to throw out all such can ends. travel in the same path, as above noted, the pressure of the paper against the depressed or notched surface in the curled edge of the can end will not be sufficient to sever the Raper at this defective part in the can end.

s a result, the paper will be'partly cut and partly inserted in the groove in the can end, but will partly cling to the paper strip and when the strip is fed forward it will carry with it the can end, thus ejectingthe can end from the machine as an imperfect can end. I am -thus.able to detect any imperfections in the can end which are often not.

otherwise apparent.

Inasmuch as the edge of the metal forming the curled edge of the can end performs the cutting action, it will be noted that the paper liner which is cut from the strip will exactly conform to the contour of'the can end. If there is a slight imperfection in the can end, (that is, if it is not quite round), the ring liner which is cut will be also not quite round and correspond exactly to the can end to which it is applied. This insures the forming of a perfectly tight joint when such a can end is secured to a can body.

While the can end is raised against the head and the liner is being cut therefrom, the push rod 43 will be moved to the left and the next advanced projection on the bar will move beneath the can end, so that when it is lowered it will be taken up by this prog jection and carried on to the next station. At the next station of the machlne, the ring liner is pressed more firmly against the bottom of the groove and this may be said to be the ring liner seating station.

Inasmuch as the balls The balls as they cut the ring liner from the paper strip apply the ring liner to the groove, that is, they force the liner into the groove below the curled edge on the can end, but the balls may not force the liner firmly against the bottom of the groove and the adhesive material applied thereto.

For this reason, I have provided the machine with a seating station which consists of an upper yielding head 70. This head is carried by a rod 71, mounted so as to move freely vertically in the bracket head 33. A spring 72 is placed between the bracket head and the yielding head 70 and operates to force the head yieldingly in a downward direction.

The can end is raised against this head by a support 73 carried by a rod H pivotally connectedito an eccentric strap 75 cooperating with an eccentric 76 on the main shaft 15. The can end is raised by this support 72 into contact with this yielding head, which is formed with a rim 77 adapted to enter the groove in the can end, engage the paper liner therein and force the same firmly against the bottom of the groove and the adhesive material which has been placed thereon. The head 70 is provided with a suitable recess 91 in which dies 92 may be placed and'held by any suitable means. The support 73 is also provided with a recess 93, in which dies 9-1 are placed and these dies 92 and 9 1 are so disposed as to engage the metal in the can end andimpress an identifying mark therein.

After the ring liner has been seated in the can end, the can end is then moved another step by the push rod 43 and brought to the re-stacking station. This station consists of a ring base 78 having a series of rods 79 for holding the stacked ends. In this ring base there are yielding fingers 80, which are sufiicient to hold the stacked ends and said fingers yield as an end is raised up into the stack-to permit the end to be stacked. A vertically reciprocating sleeve 81 engages the can end and raises the same above these fingers 80 into the stack. This sleeve 81 carries a roller 82, which cooperates with a cam 83 on the main shaft 15.

From the above it will be apparent that I have provided a machine for forming and applying ring liners, wherein the metal of the can end is utilized as the cutting element for the final severing of the paper ring liner from the paper strip. Inasmuch as the metal of the can end is the severing element, and each can end brings a new severing element into cooperation with the rotating head, there is no wear on the parts whatever. One of the great difliculties in cutting paper ring liners, consists in the wear and tear on the dies which cut the paper. The balls of the rotating head are really pressing devices and not cutting devices. To

whatever extent they may be cutting devices, there is little or no wear on the same.

It will also be noted from the above, that I have provided a machine wherein the ring liner is simultaneously cut and applied to the can end, while the can ends remain at the same station. It is extremely difiicult to handle a paper ring after it is severed from the paper strip and to bring the same into proper alinement with the groove in the can end for the applying of the ring to the can end. By my improved machine, however, I' experience none of these difliculties,

for the reason that just as'the ring is cut from the strip, it is inserted in the groove. These in efi'ect are one and the same operation.

It will be further noted from the above that I have provided a machine wherein the can ends are taken from a stack one after another and presented first to a station where an adhesive material may be applied to the bottom of the groove in the can end and then the end is automatically presented to the station wherein the ring liner is cut and simultaneously applied to the groove in the can end; and then the can end is autoniatically presented to the station where the ring liner is seated against the bottom of the groove and the adhesive material'thereon at this station where the ring liner is inserted,

the metal of the can end is engaged by the dies which impress an identlfying mark therein; and finally the can end with the ring liner therein is presented to a restacking mechanism where the ends are restacked.

The cutting die 9 is carried by a plunger 84, which reciprocates, in the upper support ing bracket and said plunger is raised and lowered by alink 85. This link 85 is pivoted at its upper end to a sliding rod 86. Extending outwardly and upwardly from the supporting bracket are arms 87 having slots 88 formed therein. A cross pin 89 runs in these slots and the rod 86 is connected to this cross pin. At its inner end the rod 86 cooperates with an eccentric 90, with which the bevel gear 35 is connected. As this eccentric rotates, it will move the rod 86 back and forth and the pivot point 91 between the link 85 and the rod 86 will move toward and from a center line passing through the plunger 84. This, of course, will cause the plunger 84.- to be raised and lowered.

While I have described an adhesive applying mechanism, it will be readily understood that this adhesive applying mechanism may be omitted from the apparatus so ameter to be readily retained by the cover although the cover or can end may be handled oughly at the packing station. The

adding of the adhesive is merely an additional securing means for holding the gasket or ring-liner in the groove.

It is obvious that minor changes in the details of construction and the arrangement of parts may be made. without departing from the spirit of the invention as set forth in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A machine for applying a liner to a can end having a curled edge including in combination means for supporting the can end with the lining material in front thereof, and means for forcing the material against the edge of the metal of the can edge fdr "severing the strip for forming a liner conforming to the contour of the can end.

2. A machine for applying a ring liner to a can end having a curled edge including in combination means for supporting the can end with the lining material in front there of, said lining material having an opening formed therein forming the inner edge of the ring liner, and means for forcing the material against the edge of the metal of the can end for severing the material to form a ring liner conforming to the contour of the can end.

3. A machine for applying a ring liner to a can end having a curled edge including in combination means for supporting the can end with the lining material in front thereof, said lining material having an opening formed therein forming the inner edge of the ring liner, and means for forcing the material against the edge of the metal of the can end for severing the material to form a ring liner conforming to the contour of the can end, said severing means being so constructed and disposed as to force the severed ring liner beneath the curled edge of the can end.

4. A machine for applying a liner to a can end having a curled edge including in combination means for supporting a can end with the lining material in front thereof, a rotating head for engaging the lining material and forcing the same against the edge of the metal of the can end for severing the material to form a liner conforming to the contour of the can end.

5. A machine for applying a liner to a can end having a curled edge including in combination means for supporting a can end, means. for cutting a disk from the strip of lining material for forming the central opening of a ring liner, means for positioning the strip with the center of the opening in alinement with the center of the can end, a rotating head for engaging the lining material and forcing the same against the edge of the metal of the can end for severing the material to form a ring liner conforming to the contour of the can end.

6. A machine for applying a ring liner to a can end having a curled edge including incombination means for supporting a can end with the lining material in front thereof, a rotating head having a series of balls disposed so as to engage the material from which the liner is to be formed and for pressing said material against the edge of the metal forming thecan end and thereby causing the edge of the metal to sever the material to form the liner.

7. -A machine for applying a ring liner to a can end having a curled edge including means for supporting a can end, means for cutting a disk from the strip of material from which the ring liner is to be formed. means for feeding the strip in front of the can end and for centering the opening relative to the center of the can end, a rotating head having a series of balls disposed so as to engage the material from which the ring liner is to be formed for pressing said material against the edge of the metal forming the can end and thereby causing said edge of metal to sever the ring liner from the material.

8. A machine for applying a ring liner to a can end having a curled edgcincluding means for supporting a can end, means for cutting a disk from the strip of material from which the ring liner is to be formed, means for feeding the strip in front of the can end and for centering the opening relative to the center of the can end, a rotating head having a series of balls disposed so as to engage the material from which the ring liner is to be formed for pressing said material against the edge of the metal forming the can end and thereby causing said edge of metal to sever the ring liner from the material, said balls being so disposed as to force the ring liner beneath the curled edge of the can end.

9. A machine for applying ring liners to can ends each having a curled edge including in combination, a vertically movable support having a yielding head, a rotating head arranged above said support and carry ing a series of balls traveling in the same path, means for placing a strip'of material underneath the rotating head, said strip of material having an opening therein forming the inner edge of the ring liner, and means for raising said support to cause the yielding head to raise a can end-against the paper strip, so that the rotating balls will force the paper strip against the edge of the metal on the can-end, thus severing the paper strip to form the ring liner.

10. A machine for applying ringliners to can ends each having a curled edge including in combination, a vertically movable support having a yielding head, a rotating head arranged above said support and carrying a series of balls traveling in the same path, means for placing a strip of material underneath the rotating head, said strip of material having an opening therein forming the inner edge of the ring liner, and means for raising said support to cause the yielding head to raise a can end against the paper strip, so that the rotating balls will force the paper stri against the edge of the metal on the can en thus severing the paper strip to form the rin liner, said balls being disposed so as to force the ring liner into the groove in the can end.

11. A machine for applying ring liners to can ends including in combination a stack holder, a rotating head having a series of balls for forcing the lining material against the curled edge of a can end for severing the material by means of the metal of the can end, a re-stacking means, and means for presenting the can end to the rotatin head and the re-stacking means, means for ceding the strip of lining material at right angles to the direction of feed of the can end, means for severing a disk from said strip and for presenting the strip at the center of the opening formed therein in line with the center of the opening in the can end.

12. A machine for applying ring liners to can ends including in combination, devices for applying adhesive to the groove in the can end, a series of rotating balls, yielding means for seating the liner in the groove in the can end, means for presenting the can ends in succession to the several devices, and means for simultaneously raising the can ends into cooperative relation with said devices.

13. A machine for applying a ring liner to a can end having a curled edge including in combination devices for supplying a. paper strip, means for cutting a disk from said strip to form the central opening of the ring liner, a rotating head having a series of balls, means for positioning the strip with the center of the opening in alinement with the center of the rotating head, means for presenting a can end underneath the strip with the center of the can end in alinement with the center of the rotating head, and means for giving said rotating head and can end a relative movement for pressing the balls against the strip to cause the edge of the metal of the can end to sever the strip and complete the formation of the ring liner.

14:. A machine for applying ring liners to can ends each having a curled edge including in combination, devices for supplying a paper strip, means for cutting a disk from said strip to form the central opening of a ring liner, a rotating head having a series of balls, means for positioning said strip with the center of the opening in alinement with the center of the rotating head, means for presenting a can end underneath the strip with the center of the "can end in alinement with the center of the rotating head, and means for raising the can end against the strip for pressing the balls against the strip to cause the edge of the metal of the can end to sever the strip and complete the formation of the ring liner.

15. A machine for applying ring liners to can ends each having a curled edge including in combination, devices for supplying a paper strip, means for cutting a disk from said strip to form the central opening of a ring liner, a rotating head having a series of balls, means for positioning said strip with the center of the opening in alinement with the center of the rotating head,

means for presenting a can end underneath the strip with'the'center of the can end in alinement with the center of the rotating head, and means for raising the can end against the strip for pressing the balls against thestrip to cause the edge of the metal of the can end to sever the strip and complete the formation of the ring liner,

said last named means including a yielding head.

16. A machine for applying ring liners to can ends including in combination, a stack holder, devices for applying an adhesive to V the groove in the can ends, devices for cutting and applying a ring liner to the groove in the can end, devices for seating the ring liner against the adhesive on the can end,

devices for applying an identifying mark in the metal of the can end, and means r'or feeding the ends in succession from the stack holder to thevarious devices.

17. A machine for applying ring liners to can ends including in combination, a stack holder, devices for applying an adhesive to the groove in the can ends, devices for cutting and applying a ring liner to the groove in the can end, devices for seating the ring liner against the adhesive on the can end, devices for applying an identifying mark in the metal of the can end, means for feeding the ends in succession from the stack holder to the various devices, and means for restackingthe can ends with the liners attached thereto.

In testimony whereof I afiix my signature.

ALFRED KRONQUEST.

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